Address warning diagnostics (#1395)

This addressess various warning diagnostics throughout the codebase.

build.gradle.kts

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 // https://youtrack.jetbrains.com/issue/KTIJ-19369
-@file:Suppress("DSL_SCOPE_VIOLATION")
-
 import org.jetbrains.gradle.ext.ActionDelegationConfig
 import org.jetbrains.gradle.ext.ActionDelegationConfig.TestRunner.PLATFORM
 import org.jetbrains.gradle.ext.ProjectSettings

docs/modules/java-binding/examples/JavaConfigExample.java

@@ -4,7 +4,7 @@ import org.pkl.config.java.JavaType;
 import org.pkl.core.ModuleSource;
 import org.junit.jupiter.api.Test;
 
-@SuppressWarnings("unused")
+@SuppressWarnings({"unused", "NewClassNamingConvention"})
 // the pkl-jvm-examples repo has a similar example
 public class JavaConfigExample {
   @Test

docs/modules/pkl-core/examples/CoreEvaluatorExample.java

@@ -7,7 +7,7 @@ import org.pkl.core.PObject;
 import org.junit.jupiter.api.Test;
 
 // the pkl-jvm-examples repo has a similar example
-@SuppressWarnings({"unchecked", "unused", "ConstantConditions"})
+@SuppressWarnings({"unchecked", "unused", "ConstantConditions", "NewClassNamingConvention"})
 public class CoreEvaluatorExample {
   @Test
   public void usage() {

gradle/libs.versions.toml

@@ -9,12 +9,18 @@ googleJavaFormat = "1.25.2"
 # must not use `+` because used in download URL
 # 23.1.x requires JDK 20+
 graalVm = "25.0.0"
+#noinspection UnusedVersionCatalogEntry
 graalVmJdkVersion = "25.0.0"
 # slightly hacky but convenient place so we remember to update the checksum
+#noinspection UnusedVersionCatalogEntry
 graalVmSha256-macos-x64 = "04278cf867d040e29dc71dd7727793f0ea67eb72adce8a35d04b87b57906778d"
+#noinspection UnusedVersionCatalogEntry
 graalVmSha256-macos-aarch64 = "c446d5aaeda98660a4c14049d299e9fba72105a007df89f19d27cf3979d37158"
+#noinspection UnusedVersionCatalogEntry
 graalVmSha256-linux-x64 = "1862f2ce97387a303cae4c512cb21baf36fafd2457c3cbbc10d87db94b89d3dd"
+#noinspection UnusedVersionCatalogEntry
 graalVmSha256-linux-aarch64 = "6c3c8b7617006c5d174d9cf7d357ccfb4bae77a4df1294ee28084fcb6eea8921"
+#noinspection UnusedVersionCatalogEntry
 graalVmSha256-windows-x64 = "33ef1d186b5c1e95465fcc97e637bc26e72d5f2250a8615b9c5d667ed5c17fd0"
 ideaExtPlugin = "1.1.9"
 intellijPlugin = "2.10.1"
@@ -62,6 +68,7 @@ geantyref = { group = "io.leangen.geantyref", name = "geantyref", version.ref =
 graalCompiler = { group = "org.graalvm.compiler", name = "compiler", version.ref = "graalVm" }
 graalSdk = { group = "org.graalvm.sdk", name = "graal-sdk", version.ref = "graalVm" }
 graalJs = { group = "org.graalvm.js", name = "js", version.ref = "graalVm" }
+#noinspection UnusedVersionCatalogEntry
 intellij = { group = "com.jetbrains.intellij.idea", name = "ideaIC", version.ref = "intellij" }
 javaPoet = { group = "com.palantir.javapoet", name = "javapoet", version.ref = "javaPoet" }
 javaxInject = { group = "javax.inject", name = "javax.inject", version.ref = "javaxInject" }
@@ -75,7 +82,6 @@ junitApi = { group = "org.junit.jupiter", name = "junit-jupiter-api", version.re
 junitEngine = { group = "org.junit.jupiter", name = "junit-jupiter-engine", version.ref = "junit" }
 junitParams = { group = "org.junit.jupiter", name = "junit-jupiter-params", version.ref = "junit" }
 junitLauncher = { group = "org.junit.platform", name = "junit-platform-launcher", version.ref = "junitPlatform" }
-kotlinCompilerEmbeddable = { group = "org.jetbrains.kotlin", name = "kotlin-compiler-embeddable", version.ref = "kotlin" }
 kotlinPlugin = { group = "org.jetbrains.kotlin", name = "kotlin-gradle-plugin", version.ref = "kotlin" }
 kotlinPoet = { group = "com.squareup", name = "kotlinpoet", version.ref = "kotlinPoet" }
 kotlinReflect = { group = "org.jetbrains.kotlin", name = "kotlin-reflect", version.ref = "kotlin" }
@@ -84,8 +90,10 @@ kotlinStdLib = { group = "org.jetbrains.kotlin", name = "kotlin-stdlib-jdk8", ve
 kotlinxHtml = { group = "org.jetbrains.kotlinx", name = "kotlinx-html-jvm", version.ref = "kotlinxHtml" }
 kotlinxSerializationJson = { group = "org.jetbrains.kotlinx", name = "kotlinx-serialization-json", version.ref = "kotlinxSerialization" }
 kotlinxCoroutinesCore = { group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-core", version.ref = "kotlinxCoroutines" }
+#noinspection UnusedVersionCatalogEntry
 log4j12Api = { group = "org.apache.logging.log4j", name = "log4j-1.2-api", version.ref = "log4j" }
 msgpack = { group = "org.msgpack", name = "msgpack-core", version.ref = "msgpack" }
+#noinspection UnusedVersionCatalogEntry
 nuValidator = { group = "nu.validator", name = "validator", version.ref = "nuValidator" }
 # to be replaced with https://github.com/usethesource/capsule or https://github.com/lacuna/bifurcan
 paguro = { group = "org.organicdesign", name = "Paguro", version.ref = "paguro" }

pkl-codegen-java/src/main/kotlin/org/pkl/codegen/java/JavaCodeGenerator.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,6 +13,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+@file:Suppress("unused")
+
 package org.pkl.codegen.java
 
 import com.palantir.javapoet.*

pkl-codegen-java/src/test/kotlin/org/pkl/codegen/java/JavaCodeGeneratorTest.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -595,10 +595,7 @@ class JavaCodeGeneratorTest {
     assertAll(
       "toString() returns Pkl name",
       javaClass.enumConstants.zip(cases) { enumConstant, (pklName, _) ->
-        {
+        { assertThat(enumConstant.toString()).isEqualTo(pklName) }
-          assertThat(enumConstant.toString()).isEqualTo(pklName)
-          Unit
-        }
       },
     )
   }
@@ -2264,7 +2261,7 @@ class JavaCodeGeneratorTest {
   }
 
   private fun Map<String, String>.validateContents(
-    vararg assertions: kotlin.Pair<String, List<String>>
+    @Suppress("RemoveRedundantQualifierName") vararg assertions: kotlin.Pair<String, List<String>>
   ) {
     val files = toMutableMap()
 
@@ -2289,7 +2286,7 @@ class JavaCodeGeneratorTest {
   }
 
   private fun JavaCodeGeneratorOptions.generateFiles(
-    vararg pklModules: kotlin.Pair<String, String>
+    @Suppress("RemoveRedundantQualifierName") vararg pklModules: kotlin.Pair<String, String>
   ): Map<String, String> =
     generateFiles(*pklModules.map { (name, text) -> PklModule(name, text) }.toTypedArray())
 

pkl-codegen-kotlin/src/main/kotlin/org/pkl/codegen/kotlin/KotlinCodeGenerator.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,6 +13,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+@file:Suppress("unused")
+
 package org.pkl.codegen.kotlin
 
 import com.squareup.kotlinpoet.*
@@ -66,6 +68,7 @@ class KotlinCodeGenerator(
     private val STRING = String::class.asClassName()
     private val ANY_NULL = ANY.copy(nullable = true)
     private val NOTHING = Nothing::class.asClassName()
+    @Suppress("RemoveRedundantQualifierName")
     private val KOTLIN_PAIR = kotlin.Pair::class.asClassName()
     private val COLLECTION = Collection::class.asClassName()
     private val LIST = List::class.asClassName()

pkl-codegen-kotlin/src/test/kotlin/org/pkl/codegen/kotlin/KotlinCodeGeneratorTest.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -2054,7 +2054,7 @@ class KotlinCodeGeneratorTest {
   }
 
   private fun Map<String, String>.validateContents(
-    vararg assertions: kotlin.Pair<String, List<String>>
+    @Suppress("RemoveRedundantQualifierName") vararg assertions: kotlin.Pair<String, List<String>>
   ) {
     val files = toMutableMap()
 
@@ -2079,7 +2079,7 @@ class KotlinCodeGeneratorTest {
   }
 
   private fun KotlinCodeGeneratorOptions.generateFiles(
-    vararg pklModules: kotlin.Pair<String, String>
+    @Suppress("RemoveRedundantQualifierName") vararg pklModules: kotlin.Pair<String, String>
   ): Map<String, String> =
     generateFiles(*pklModules.map { (name, text) -> PklModule(name, text) }.toTypedArray())
 

pkl-commons-cli/src/test/kotlin/org/pkl/commons/cli/CliCommandTest.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,11 +23,11 @@ import org.pkl.core.SecurityManagers
 
 class CliCommandTest {
 
-  class CliTest(private val options: CliBaseOptions) : CliCommand(options) {
+  class CliTest(options: CliBaseOptions) : CliCommand(options) {
     override fun doRun() = Unit
 
-    val _allowedResources = allowedResources
+    val myAllowedResources = allowedResources
-    val _allowedModules = allowedModules
+    val myAllowedModules = allowedModules
   }
 
   private val cmd =
@@ -57,12 +57,12 @@ class CliCommandTest {
     )
     val opts = cmd.baseOptions.baseOptions(emptyList(), null, true)
     val cliTest = CliTest(opts)
-    assertThat(cliTest._allowedModules.map { it.pattern() })
+    assertThat(cliTest.myAllowedModules.map { it.pattern() })
       .isEqualTo(
         SecurityManagers.defaultAllowedModules.map { it.pattern() } +
           listOf("\\Qscheme3:\\E", "\\Qscheme4:\\E", "\\Qscheme+ext:\\E")
       )
-    assertThat(cliTest._allowedResources.map { it.pattern() })
+    assertThat(cliTest.myAllowedResources.map { it.pattern() })
       .isEqualTo(
         SecurityManagers.defaultAllowedResources.map { it.pattern() } +
           listOf("\\Qscheme1:\\E", "\\Qscheme2:\\E", "\\Qscheme+ext:\\E")

pkl-config-java/src/test/java/org/pkl/config/java/JavaTypeTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -89,6 +89,7 @@ public class JavaTypeTest {
     assertThat(javaType.getType()).isEqualTo(Types.mapOf(String.class, Types.listOf(URI.class)));
   }
 
+  @SuppressWarnings({"EqualsWithItself", "AssertBetweenInconvertibleTypes"})
   @Test
   public void sameTypesConstructedInDifferentWaysAreEqual() {
     var type1 = JavaType.mapOf(JavaType.of(String.class), JavaType.listOf(URI.class));

pkl-config-java/src/test/java/org/pkl/config/java/mapper/ConversionsTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,46 +28,51 @@ import org.pkl.core.DurationUnit;
 public class ConversionsTest {
   @Test
   public void pStringToFile() {
-    var file = Conversions.pStringToFile.converter.convert("relative/path", null);
+    var file =
+        Conversions.pStringToFile.converter.convert("relative/path", ValueMapper.preconfigured());
     assertThat(file).isEqualTo(new File("relative/path"));
 
-    var file2 = Conversions.pStringToFile.converter.convert("/absolute/path", null);
+    var file2 =
+        Conversions.pStringToFile.converter.convert("/absolute/path", ValueMapper.preconfigured());
     assertThat(file2).isEqualTo(new File("/absolute/path"));
 
-    var file3 = Conversions.pStringToFile.converter.convert("", null);
+    var file3 = Conversions.pStringToFile.converter.convert("", ValueMapper.preconfigured());
     assertThat(file3).isEqualTo(new File(""));
   }
 
   @Test
   public void pStringToPath() {
-    var path = Conversions.pStringToPath.converter.convert("relative/path", null);
+    var path =
+        Conversions.pStringToPath.converter.convert("relative/path", ValueMapper.preconfigured());
     assertThat(path).isEqualTo(Path.of("relative/path"));
 
-    var path2 = Conversions.pStringToPath.converter.convert("/absolute/path", null);
+    var path2 =
+        Conversions.pStringToPath.converter.convert("/absolute/path", ValueMapper.preconfigured());
     assertThat(path2).isEqualTo(Path.of("/absolute/path"));
 
-    var path3 = Conversions.pStringToPath.converter.convert("", null);
+    var path3 = Conversions.pStringToPath.converter.convert("", ValueMapper.preconfigured());
     assertThat(path3).isEqualTo(Path.of(""));
   }
 
   @Test
   public void pStringToPattern() {
     var str = "(?i)\\w*";
-    var pattern = Conversions.pStringToPattern.converter.convert(str, null);
+    var pattern = Conversions.pStringToPattern.converter.convert(str, ValueMapper.preconfigured());
     assertThat(pattern.pattern()).isEqualTo(str);
   }
 
   @Test
   public void pRegexToString() {
     var regex = Pattern.compile("(?i)\\w*");
-    var str = Conversions.pRegexToString.converter.convert(regex, null);
+    var str = Conversions.pRegexToString.converter.convert(regex, ValueMapper.preconfigured());
     assertThat(str).isEqualTo("(?i)\\w*");
   }
 
   @Test
   public void pDurationToDuration() {
     var pDuration = new Duration(100, DurationUnit.MINUTES);
-    var duration = Conversions.pDurationToDuration.converter.convert(pDuration, null);
+    var duration =
+        Conversions.pDurationToDuration.converter.convert(pDuration, ValueMapper.preconfigured());
     assertThat(duration).isEqualTo(java.time.Duration.of(100, ChronoUnit.MINUTES));
   }
 }

pkl-config-java/src/test/java/org/pkl/config/java/mapper/PModuleToDataObjectTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -31,7 +31,7 @@ public class PModuleToDataObjectTest {
 
   private static final PModule module =
       evaluator.evaluate(modulePath("org/pkl/config/java/mapper/PModuleToDataObjectTest.pkl"));
-  PObjectToDataObjectTest.Person pigeon =
+  private final PObjectToDataObjectTest.Person pigeon =
       new PObjectToDataObjectTest.Person(
           "pigeon",
           40,

pkl-config-java/src/test/java/org/pkl/config/java/mapper/PNullToAnyTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,6 +24,7 @@ import org.pkl.core.PNull;
 public class PNullToAnyTest {
   private static final ValueMapper mapper = ValueMapperBuilder.preconfigured().build();
 
+  @SuppressWarnings("DataFlowIssue")
   @Test
   public void test() {
     // due to Conversions.identities

pkl-core/src/main/java/org/pkl/core/JsonRenderer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -105,7 +105,8 @@ final class JsonRenderer implements ValueRenderer {
     @Override
     public void visitBytes(byte[] value) {
       throw new RendererException(
-          String.format("Values of type `Bytes` cannot be rendered as JSON. Value: %s", value));
+          String.format(
+              "Values of type `Bytes` cannot be rendered as JSON. Value: %s", (Object) value));
     }
 
     @Override

pkl-core/src/main/java/org/pkl/core/PropertiesRenderer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -110,7 +110,8 @@ final class PropertiesRenderer implements ValueRenderer {
     public String convertBytes(byte[] value) {
       throw new RendererException(
           String.format(
-              "Values of type `Bytes` cannot be rendered as Properties. Value: %s", value));
+              "Values of type `Bytes` cannot be rendered as Properties. Value: %s",
+              (Object) value));
     }
 
     @Override

pkl-core/src/main/java/org/pkl/core/ast/builder/AstBuilder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -2449,8 +2449,7 @@ public class AstBuilder extends AbstractAstBuilder<Object> {
       if (dataSizeUnit != null) {
         //noinspection ConstantConditions
         return new ConstantValueNode(
-            sourceSection,
+            sourceSection, new VmDataSize(intLiteralNode.executeInt(null), dataSizeUnit));
-            new VmDataSize(((IntLiteralNode) receiver).executeInt(null), dataSizeUnit));
       }
     }
 
@@ -2465,8 +2464,7 @@ public class AstBuilder extends AbstractAstBuilder<Object> {
       if (dataSizeUnit != null) {
         //noinspection ConstantConditions
         return new ConstantValueNode(
-            sourceSection,
+            sourceSection, new VmDataSize(floatLiteralNode.executeFloat(null), dataSizeUnit));
-            new VmDataSize(((FloatLiteralNode) receiver).executeFloat(null), dataSizeUnit));
       }
     }
 

pkl-core/src/main/java/org/pkl/core/ast/expression/binary/NotEqualNode.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -100,6 +100,7 @@ public abstract class NotEqualNode extends ExpressionNode {
     return true;
   }
 
+  @SuppressWarnings("JavaExistingMethodCanBeUsed")
   protected static boolean isIncompatibleTypes(Object left, Object right) {
     var leftClass = left.getClass();
     var rightClass = right.getClass();

pkl-core/src/main/java/org/pkl/core/ast/expression/literal/SpecializedObjectLiteralNode.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -67,7 +67,6 @@ public abstract class SpecializedObjectLiteralNode extends ObjectLiteralNode {
 
   // only runs once per VmClass (which often means once per PropertiesLiteralNode)
   // unless an XYZUncached specialization is active
-  @SuppressWarnings("ExtractMethodRecommender")
   @TruffleBoundary
   @Idempotent
   protected boolean checkIsValidTypedAmendment(Object parent) {

pkl-core/src/main/java/org/pkl/core/project/ProjectPackager.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -62,7 +62,6 @@ import org.pkl.core.util.ErrorMessages;
 import org.pkl.core.util.GlobResolver;
 import org.pkl.core.util.GlobResolver.InvalidGlobPatternException;
 import org.pkl.core.util.IoUtils;
-import org.pkl.core.util.Nullable;
 
 /**
  * Given a list of project directories, prepares artifacts to be published as a package.
@@ -441,7 +440,7 @@ public final class ProjectPackager {
     }
   }
 
-  private @Nullable List<ImportsAndReadsParser.Entry> getImportsAndReads(Path pklModulePath) {
+  private List<ImportsAndReadsParser.Entry> getImportsAndReads(Path pklModulePath) {
     try {
       var moduleKey = ModuleKeys.file(pklModulePath);
       var resolvedModuleKey = ResolvedModuleKeys.file(moduleKey, moduleKey.getUri(), pklModulePath);

pkl-core/src/main/java/org/pkl/core/runtime/MinPklVersionChecker.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -63,7 +63,11 @@ final class MinPklVersionChecker {
         if (!Identifier.MIN_PKL_VERSION.toString().equals(prop.getIdentifier().getValue()))
           continue;
 
-        var versionText = prop.getExpr().text(source.toCharArray());
+        var versionTextExpr = prop.getExpr();
+        if (versionTextExpr == null) {
+          return;
+        }
+        var versionText = versionTextExpr.text(source.toCharArray());
 
         Version version;
         try {

pkl-core/src/main/java/org/pkl/core/runtime/VmBytes.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -37,7 +37,7 @@ public final class VmBytes extends VmValue implements Iterable<Long> {
   private final byte[] bytes;
   private @Nullable VmDataSize size;
 
-  public static VmBytes EMPTY = new VmBytes(new byte[0]);
+  public static final VmBytes EMPTY = new VmBytes(new byte[0]);
 
   @TruffleBoundary
   public static VmBytes createFromConstantNodes(ExpressionNode[] elements) {

pkl-core/src/main/java/org/pkl/core/runtime/VmDynamic.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -100,7 +100,8 @@ public final class VmDynamic extends VmObject {
   @Override
   @TruffleBoundary
   public boolean equals(Object obj) {
-    if (this == obj) return true;
+    if (this == obj) // noinspection Contract
+    return true;
     if (!(obj instanceof VmDynamic other)) return false;
 
     // could use shallow force, but deep force is cached

pkl-core/src/main/java/org/pkl/core/runtime/VmImportAnalyzer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -94,9 +94,6 @@ public class VmImportAnalyzer {
     } catch (IOException err) {
       throw new VmExceptionBuilder().evalError("ioErrorLoadingModule", moduleKey.getUri()).build();
     }
-    if (importsAndReads == null) {
-      return Set.of();
-    }
     var result = new HashSet<ImportEntry>();
     for (var entry : importsAndReads) {
       if (!entry.isModule()) {

pkl-core/src/main/java/org/pkl/core/runtime/VmMapping.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -119,7 +119,8 @@ public final class VmMapping extends VmListingOrMapping {
   @Override
   @TruffleBoundary
   public boolean equals(Object obj) {
-    if (this == obj) return true;
+    if (this == obj) // noinspection Contract
+    return true;
     if (!(obj instanceof VmMapping other)) return false;
 
     // could use shallow force, but deep force is cached

pkl-core/src/main/java/org/pkl/core/stdlib/base/BaseNodes.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -52,14 +52,14 @@ public final class BaseNodes {
 
   public abstract static class NaN extends ExternalPropertyNode {
     @Specialization
-    protected double eval(VmTyped self) {
+    protected double eval(VmTyped ignored) {
       return Double.NaN;
     }
   }
 
   public abstract static class Infinity extends ExternalPropertyNode {
     @Specialization
-    protected double eval(VmTyped self) {
+    protected double eval(VmTyped ignored) {
       return Double.POSITIVE_INFINITY;
     }
   }

pkl-core/src/main/java/org/pkl/core/stdlib/base/DataSizeNodes.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -27,7 +27,8 @@ public final class DataSizeNodes {
   private DataSizeNodes() {}
 
   @ImportStatic(MathUtils.class)
-  public abstract static class value extends ExternalPropertyNode {
+  @PklName("value")
+  public abstract static class valueProperty extends ExternalPropertyNode {
     @Specialization(guards = "isMathematicalInteger(self.getValue())")
     protected long evalInt(VmDataSize self) {
       return (long) self.getValue();

pkl-core/src/main/java/org/pkl/core/stdlib/base/DurationNodes.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -29,7 +29,8 @@ public final class DurationNodes {
   private DurationNodes() {}
 
   @ImportStatic(MathUtils.class)
-  public abstract static class value extends ExternalPropertyNode {
+  @PklName("value")
+  public abstract static class valueProperty extends ExternalPropertyNode {
     @Specialization(guards = "isMathematicalInteger(self.getValue())")
     protected long evalInt(VmDuration self) {
       return (long) self.getValue();

pkl-core/src/main/java/org/pkl/core/stdlib/base/PairNodes.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,6 +18,7 @@ package org.pkl.core.stdlib.base;
 import com.oracle.truffle.api.dsl.Specialization;
 import org.pkl.core.runtime.VmPair;
 import org.pkl.core.stdlib.ExternalPropertyNode;
+import org.pkl.core.stdlib.PklName;
 
 public final class PairNodes {
   private PairNodes() {}
@@ -43,7 +44,8 @@ public final class PairNodes {
     }
   }
 
-  public abstract static class value extends ExternalPropertyNode {
+  @PklName("value")
+  public abstract static class valueProperty extends ExternalPropertyNode {
     @Specialization
     protected Object eval(VmPair self) {
       return self.getSecond();

pkl-core/src/main/java/org/pkl/core/stdlib/test/report/JUnitReport.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,7 +20,6 @@ import java.io.Writer;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.function.Consumer;
-import java.util.stream.Collectors;
 import org.graalvm.collections.EconomicMap;
 import org.pkl.core.TestResults;
 import org.pkl.core.TestResults.Error;
@@ -57,9 +56,8 @@ public final class JUnitReport implements TestReport {
 
   @Override
   public void summarize(List<TestResults> allTestResults, Writer writer) throws IOException {
-    var totalTests = allTestResults.stream().collect(Collectors.summingLong(r -> r.totalTests()));
+    var totalTests = allTestResults.stream().mapToLong(TestResults::totalTests).sum();
-    var totalFailures =
+    var totalFailures = allTestResults.stream().mapToLong(TestResults::totalFailures).sum();
-        allTestResults.stream().collect(Collectors.summingLong(r -> r.totalFailures()));
 
     assert aggregateSuiteName != null;
 
@@ -69,12 +67,11 @@ public final class JUnitReport implements TestReport {
             "tests", totalTests,
             "failures", totalFailures);
 
-    var tests =
+    var suite =
-        allTestResults.stream()
+        buildXmlElement(
-            .map(r -> buildSuite(r))
+            "testsuites",
-            .collect(Collectors.toCollection(ArrayList::new));
+            attrs,
-
+            allTestResults.stream().map(this::buildSuite).toArray(VmDynamic[]::new));
-    var suite = buildXmlElement("testsuites", attrs, tests.toArray(new VmDynamic[0]));
 
     writer.append(renderXML("    ", "1.0", suite));
   }

pkl-core/src/main/java/org/pkl/core/util/json/Json.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -362,7 +362,7 @@ public final class Json {
     }
 
     @Override
-    public Object put(String key, Object value) {
+    public @Nullable Object put(String key, Object value) {
       return delegate.put(key, value);
     }
 

pkl-core/src/test/kotlin/org/pkl/core/parser/TrailingCommasTest.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,14 +17,11 @@ package org.pkl.core.parser
 
 import org.assertj.core.api.Assertions.assertThat
 import org.junit.jupiter.api.Test
-import org.pkl.core.Evaluator
 import org.pkl.parser.Parser
 
 // tests type argument and parameter parsing with trailing commas that cannot be tested with
 // snippets because these constructs are currently only allowed in the stdlib
 class TrailingCommasTest {
-  private val evaluator = Evaluator.preconfigured()
-
   @Test
   fun `class type parameter lists parse correctly`() {
     val module =

pkl-doc/src/main/kotlin/org/pkl/doc/ClassPageGenerator.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -27,15 +27,7 @@ internal class ClassPageGenerator(
   pageScope: ClassScope,
   isTestMode: Boolean,
   consoleOut: OutputStream,
-) :
+) : ModuleOrClassPageGenerator<ClassScope>(docsiteInfo, clazz, pageScope, isTestMode, consoleOut) {
-  ModuleOrClassPageGenerator<ClassScope>(
-    docsiteInfo,
-    docModule,
-    clazz,
-    pageScope,
-    isTestMode,
-    consoleOut,
-  ) {
   override val html: HTML.() -> Unit = {
     renderHtmlHead()
 

pkl-doc/src/main/kotlin/org/pkl/doc/Constants.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,8 +25,3 @@ internal object HtmlConstants {
   /** The `known-usages` element ID. */
   const val KNOWN_USAGES: String = "known-usages"
 }
-
-internal object CssConstants {
-  /** The `current-version` CSS class. */
-  const val CURRENT_VERSION: String = "current-version"
-}

pkl-doc/src/main/kotlin/org/pkl/doc/MainOrPackagePageGenerator.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,7 +21,6 @@ import kotlinx.html.*
 internal abstract class MainOrPackagePageGenerator<S>(
   docsiteInfo: DocsiteInfo,
   pageScope: S,
-  private val siteScope: SiteScope,
   consoleOut: OutputStream,
 ) : PageGenerator<S>(docsiteInfo, pageScope, consoleOut) where S : PageScope {
   protected fun UL.renderModuleOrPackage(

pkl-doc/src/main/kotlin/org/pkl/doc/MainPageGenerator.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,7 +23,7 @@ internal class MainPageGenerator(
   private val packagesData: List<PackageData>,
   pageScope: SiteScope,
   consoleOut: OutputStream,
-) : MainOrPackagePageGenerator<SiteScope>(docsiteInfo, pageScope, pageScope, consoleOut) {
+) : MainOrPackagePageGenerator<SiteScope>(docsiteInfo, pageScope, consoleOut) {
   override val html: HTML.() -> Unit = {
     renderHtmlHead()
 

pkl-doc/src/main/kotlin/org/pkl/doc/ModuleOrClassPageGenerator.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,7 +16,6 @@
 package org.pkl.doc
 
 import java.io.OutputStream
-import java.io.StringWriter
 import kotlinx.html.*
 import org.pkl.core.Member
 import org.pkl.core.PClass
@@ -24,11 +23,9 @@ import org.pkl.core.PClass.ClassMember
 import org.pkl.core.PClass.Method
 import org.pkl.core.TypeParameter
 import org.pkl.core.TypeParameter.Variance
-import org.pkl.core.ValueRenderers
 
 internal abstract class ModuleOrClassPageGenerator<S>(
   docsiteInfo: DocsiteInfo,
-  private val docModule: DocModule,
   protected val clazz: PClass,
   scope: S,
   private val isTestMode: Boolean,
@@ -141,12 +138,6 @@ internal abstract class ModuleOrClassPageGenerator<S>(
     }
   }
 
-  private fun renderExportedValue(value: Any): String {
-    val writer = StringWriter()
-    ValueRenderers.pcf(writer, "  ", false, false).renderValue(value)
-    return writer.toString()
-  }
-
   protected fun HtmlBlockTag.renderMethods() {
     if (!clazz.hasListedMethod) return
 

pkl-doc/src/main/kotlin/org/pkl/doc/ModulePageGenerator.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,7 +28,6 @@ internal class ModulePageGenerator(
 ) :
   ModuleOrClassPageGenerator<ModuleScope>(
     docsiteInfo,
-    docModule,
     docModule.schema.moduleClass,
     pageScope,
     isTestMode,

pkl-doc/src/main/kotlin/org/pkl/doc/PackagePageGenerator.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,7 +23,7 @@ internal class PackagePageGenerator(
   private val docPackage: DocPackage,
   pageScope: PackageScope,
   consoleOut: OutputStream,
-) : MainOrPackagePageGenerator<PackageScope>(docsiteInfo, pageScope, pageScope.parent, consoleOut) {
+) : MainOrPackagePageGenerator<PackageScope>(docsiteInfo, pageScope, consoleOut) {
   override val html: HTML.() -> Unit = {
     renderHtmlHead()
 

pkl-doc/src/main/kotlin/org/pkl/doc/Util.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -112,7 +112,7 @@ internal val String.uriEncodedComponent
  * Follows `encodeURI` from ECMAScript.
  */
 internal val String.uriEncoded
-  get(): String = replace(Regex("([^;/?:@&=+\$,#]+)")) { it.value.uriEncodedComponent }
+  get(): String = replace(Regex("([^;/?:@&=+$,#]+)")) { it.value.uriEncodedComponent }
 
 fun getModulePath(moduleName: String, packagePrefix: String): String =
   moduleName.substring(packagePrefix.length).replace('.', '/')

pkl-doc/src/test/kotlin/org/pkl/doc/DocGeneratorTest.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -32,7 +32,7 @@ class DocGeneratorTest {
   fun `uses virtual thread executor on JDK 21`() {
     // On older JDKs, we get a ThreadPoolExecutor.
     // not sure if there's a better assertion to make here.
-    assertThat(DocGenerator.Companion.executor.javaClass.canonicalName)
+    assertThat(DocGenerator.executor.javaClass.canonicalName)
       .isEqualTo("java.util.concurrent.ThreadPerTaskExecutor")
   }
 }

pkl-doc/src/test/kotlin/org/pkl/doc/DocGeneratorTestHelper.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -85,17 +85,6 @@ class DocGeneratorTestHelper {
 
   internal val cacheDir: Path by lazy { tempDir.resolve("cache") }
 
-  internal val sourceModules =
-    listOf(
-      docsiteModule,
-      package1PackageModule,
-      package2PackageModule,
-      URI("package://localhost:0/birds@0.5.0"),
-      URI("package://localhost:0/fruit@1.1.0"),
-      URI("package://localhost:0/unlisted@1.0.0"),
-      URI("package://localhost:0/deprecated@1.0.0"),
-    ) + package1InputModules + package2InputModules
-
   internal val expectedRelativeOutputFiles: List<String> by lazy {
     expectedOutputFiles.map { path ->
       IoUtils.toNormalizedPathString(expectedOutputDir.relativize(path)).let { str ->

pkl-doc/src/test/kotlin/org/pkl/doc/TestUtils.kt

@@ -1,93 +0,0 @@
-/*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.pkl.doc
-
-import com.google.common.jimfs.Configuration
-import com.google.common.jimfs.Jimfs
-import java.net.URI
-import java.nio.file.FileSystem
-import java.nio.file.Path
-import kotlin.io.path.createDirectories
-import kotlin.io.path.exists
-import org.pkl.commons.test.FileTestUtils
-import org.pkl.commons.test.listFilesRecursively
-import org.pkl.core.util.IoUtils
-
-class TestUtils {
-  val tempFileSystem: FileSystem by lazy { Jimfs.newFileSystem(Configuration.unix()) }
-
-  val tmpOutputDir by lazy { tempFileSystem.getPath("/work/output").apply { createDirectories() } }
-
-  val projectDir = FileTestUtils.rootProjectDir.resolve("pkl-doc")
-
-  val inputDir: Path by lazy {
-    projectDir.resolve("src/test/files/DocGeneratorTest/input").apply { assert(exists()) }
-  }
-
-  val docsiteModule: URI by lazy {
-    inputDir.resolve("docsite-info.pkl").apply { assert(exists()) }.toUri()
-  }
-
-  internal val package1PackageModule: URI by lazy {
-    inputDir.resolve("com.package1/doc-package-info.pkl").apply { assert(exists()) }.toUri()
-  }
-
-  val package2PackageModule: URI by lazy {
-    inputDir.resolve("com.package2/doc-package-info.pkl").apply { assert(exists()) }.toUri()
-  }
-
-  internal val package1InputModules: List<URI> by lazy {
-    inputDir
-      .resolve("com.package1")
-      .listFilesRecursively()
-      .filter { it.fileName.toString() != "doc-package-info.pkl" }
-      .map { it.toUri() }
-  }
-
-  val package2InputModules: List<URI> by lazy {
-    inputDir
-      .resolve("com.package2")
-      .listFilesRecursively()
-      .filter { it.fileName.toString() != "doc-package-info.pkl" }
-      .map { it.toUri() }
-  }
-
-  val expectedOutputDir: Path by lazy {
-    projectDir.resolve("src/test/files/DocGeneratorTest/output").createDirectories()
-  }
-
-  val expectedOutputFiles: List<Path> by lazy { expectedOutputDir.listFilesRecursively() }
-
-  val actualOutputDir: Path by lazy { tempFileSystem.getPath("/work/DocGeneratorTest") }
-
-  val actualOutputFiles: List<Path> by lazy { actualOutputDir.listFilesRecursively() }
-
-  val expectedRelativeOutputFiles: List<String> by lazy {
-    expectedOutputFiles.map { path ->
-      IoUtils.toNormalizedPathString(expectedOutputDir.relativize(path)).let { str ->
-        // Git will by default clone symlinks as shortcuts on Windows, and shortcuts have a
-        // `.lnk` extension.
-        if (IoUtils.isWindows() && str.endsWith(".lnk")) str.dropLast(4) else str
-      }
-    }
-  }
-
-  val actualRelativeOutputFiles: List<String> by lazy {
-    actualOutputFiles.map { IoUtils.toNormalizedPathString(actualOutputDir.relativize(it)) }
-  }
-
-  val binaryFileExtensions = setOf("woff2", "png", "svg")
-}

pkl-parser/src/main/java/org/pkl/parser/syntax/Annotation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -32,7 +32,9 @@ public class Annotation extends AbstractNode {
 
   public Type getType() {
     assert children != null;
-    return (Type) children.get(0);
+    var ret = (Type) children.get(0);
+    assert ret != null;
+    return ret;
   }
 
   public @Nullable ObjectBody getBody() {

pkl-parser/src/main/java/org/pkl/parser/syntax/Class.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -54,12 +54,16 @@ public final class Class extends AbstractNode {
 
   public Keyword getClassKeyword() {
     assert children != null;
-    return (Keyword) children.get(keywordOffset);
+    var ret = (Keyword) children.get(keywordOffset);
+    assert ret != null;
+    return ret;
   }
 
   public Identifier getName() {
     assert children != null;
-    return (Identifier) children.get(keywordOffset + 1);
+    var ret = (Identifier) children.get(keywordOffset + 1);
+    assert ret != null;
+    return ret;
   }
 
   public @Nullable TypeParameterList getTypeParameterList() {

pkl-parser/src/main/java/org/pkl/parser/syntax/ClassMethod.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -57,7 +57,9 @@ public class ClassMethod extends AbstractNode {
 
   public Identifier getName() {
     assert children != null;
-    return (Identifier) children.get(nameOffset);
+    var ret = (Identifier) children.get(nameOffset);
+    assert ret != null;
+    return ret;
   }
 
   public @Nullable TypeParameterList getTypeParameterList() {
@@ -67,7 +69,9 @@ public class ClassMethod extends AbstractNode {
 
   public ParameterList getParameterList() {
     assert children != null;
-    return (ParameterList) children.get(nameOffset + 2);
+    var ret = (ParameterList) children.get(nameOffset + 2);
+    assert ret != null;
+    return ret;
   }
 
   public @Nullable TypeAnnotation getTypeAnnotation() {

pkl-parser/src/main/java/org/pkl/parser/syntax/ClassProperty.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -54,7 +54,9 @@ public final class ClassProperty extends AbstractNode {
 
   public Identifier getName() {
     assert children != null;
-    return (Identifier) children.get(nameOffset);
+    var ret = (Identifier) children.get(nameOffset);
+    assert ret != null;
+    return ret;
   }
 
   public @Nullable TypeAnnotation getTypeAnnotation() {

pkl-parser/src/main/java/org/pkl/parser/syntax/DocComment.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,7 +18,6 @@ package org.pkl.parser.syntax;
 import java.util.List;
 import org.pkl.parser.ParserVisitor;
 import org.pkl.parser.Span;
-import org.pkl.parser.util.Nullable;
 
 public final class DocComment extends AbstractNode {
   private final List<Span> spans;
@@ -38,7 +37,7 @@ public final class DocComment extends AbstractNode {
   }
 
   @Override
-  public <T> @Nullable T accept(ParserVisitor<? extends T> visitor) {
+  public <T> T accept(ParserVisitor<? extends T> visitor) {
     return visitor.visitDocComment(this);
   }
 

pkl-parser/src/main/java/org/pkl/parser/syntax/Expr.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,6 +22,7 @@ import org.pkl.parser.ParserVisitor;
 import org.pkl.parser.Span;
 import org.pkl.parser.util.Nullable;
 
+@SuppressWarnings("unused")
 public abstract sealed class Expr extends AbstractNode {
 
   public Expr(Span span, @Nullable List<? extends @Nullable Node> children) {
@@ -200,7 +201,9 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
   }
 
@@ -216,7 +219,9 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
   }
 
@@ -235,7 +240,9 @@ public abstract sealed class Expr extends AbstractNode {
 
     public StringConstant getImportStr() {
       assert children != null;
-      return (StringConstant) children.get(0);
+      var ret = (StringConstant) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public boolean isGlob() {
@@ -258,7 +265,9 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public ReadType getReadType() {
@@ -285,7 +294,9 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Identifier getIdentifier() {
       assert children != null;
-      return (Identifier) children.get(0);
+      var ret = (Identifier) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public @Nullable ArgumentList getArgumentList() {
@@ -314,12 +325,16 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public Identifier getIdentifier() {
       assert children != null;
-      return (Identifier) children.get(1);
+      var ret = (Identifier) children.get(1);
+      assert ret != null;
+      return ret;
     }
 
     public boolean isNullable() {
@@ -344,7 +359,9 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Identifier getIdentifier() {
       assert children != null;
-      return (Identifier) children.get(0);
+      var ret = (Identifier) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public @Nullable ArgumentList getArgumentList() {
@@ -365,7 +382,9 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Expr getArg() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
   }
 
@@ -381,12 +400,16 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public Expr getArg() {
       assert children != null;
-      return (Expr) children.get(1);
+      var ret = (Expr) children.get(1);
+      assert ret != null;
+      return ret;
     }
   }
 
@@ -402,17 +425,23 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Expr getCond() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public Expr getThen() {
       assert children != null;
-      return (Expr) children.get(1);
+      var ret = (Expr) children.get(1);
+      assert ret != null;
+      return ret;
     }
 
     public Expr getEls() {
       assert children != null;
-      return (Expr) children.get(2);
+      var ret = (Expr) children.get(2);
+      assert ret != null;
+      return ret;
     }
   }
 
@@ -428,17 +457,23 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Parameter getParameter() {
       assert children != null;
-      return (Parameter) children.get(0);
+      var ret = (Parameter) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public Expr getBindingExpr() {
       assert children != null;
-      return (Expr) children.get(1);
+      var ret = (Expr) children.get(1);
+      assert ret != null;
+      return ret;
     }
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(2);
+      var ret = (Expr) children.get(2);
+      assert ret != null;
+      return ret;
     }
   }
 
@@ -454,12 +489,16 @@ public abstract sealed class Expr extends AbstractNode {
 
     public ParameterList getParameterList() {
       assert children != null;
-      return (ParameterList) children.get(0);
+      var ret = (ParameterList) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(1);
+      var ret = (Expr) children.get(1);
+      assert ret != null;
+      return ret;
     }
   }
 
@@ -475,7 +514,9 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
   }
 
@@ -496,7 +537,9 @@ public abstract sealed class Expr extends AbstractNode {
 
     public ObjectBody getBody() {
       assert children != null;
-      return (ObjectBody) children.get(1);
+      var ret = (ObjectBody) children.get(1);
+      assert ret != null;
+      return ret;
     }
 
     public Span newSpan() {
@@ -516,12 +559,16 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public ObjectBody getBody() {
       assert children != null;
-      return (ObjectBody) children.get(1);
+      var ret = (ObjectBody) children.get(1);
+      assert ret != null;
+      return ret;
     }
   }
 
@@ -537,7 +584,9 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
   }
 
@@ -553,7 +602,9 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
   }
 
@@ -569,7 +620,9 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
   }
 
@@ -588,12 +641,16 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Expr getLeft() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public Expr getRight() {
       assert children != null;
-      return (Expr) children.get(1);
+      var ret = (Expr) children.get(1);
+      assert ret != null;
+      return ret;
     }
 
     public Operator getOp() {
@@ -608,12 +665,12 @@ public abstract sealed class Expr extends AbstractNode {
     @SuppressWarnings("ConstantValue")
     @Override
     public boolean equals(Object o) {
-      if (this == o) {
-        return true;
-      }
       if (o == null || getClass() != o.getClass()) {
         return false;
       }
+      if (this == o) {
+        return true;
+      }
       BinaryOperatorExpr binaryOp = (BinaryOperatorExpr) o;
       return Objects.deepEquals(children, binaryOp.children)
           && op == binaryOp.op
@@ -638,12 +695,16 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public Type getType() {
       assert children != null;
-      return (Type) children.get(1);
+      var ret = (Type) children.get(1);
+      assert ret != null;
+      return ret;
     }
   }
 
@@ -659,12 +720,16 @@ public abstract sealed class Expr extends AbstractNode {
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public Type getType() {
       assert children != null;
-      return (Type) children.get(1);
+      var ret = (Type) children.get(1);
+      assert ret != null;
+      return ret;
     }
   }
 }

pkl-parser/src/main/java/org/pkl/parser/syntax/ExtendsOrAmendsClause.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -36,7 +36,9 @@ public class ExtendsOrAmendsClause extends AbstractNode {
 
   public StringConstant getUrl() {
     assert children != null;
-    return (StringConstant) children.get(0);
+    var ret = (StringConstant) children.get(0);
+    assert ret != null;
+    return ret;
   }
 
   public Type getType() {
@@ -58,12 +60,12 @@ public class ExtendsOrAmendsClause extends AbstractNode {
   @SuppressWarnings("ConstantValue")
   @Override
   public boolean equals(Object o) {
-    if (this == o) {
-      return true;
-    }
     if (o == null || getClass() != o.getClass()) {
       return false;
     }
+    if (this == o) {
+      return true;
+    }
     if (!super.equals(o)) {
       return false;
     }

pkl-parser/src/main/java/org/pkl/parser/syntax/Identifier.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -56,12 +56,12 @@ public final class Identifier extends AbstractNode {
   @SuppressWarnings("ConstantValue")
   @Override
   public boolean equals(Object o) {
-    if (this == o) {
-      return true;
-    }
     if (o == null || getClass() != o.getClass()) {
       return false;
     }
+    if (this == o) {
+      return true;
+    }
     Identifier identifier = (Identifier) o;
     return Objects.equals(value, identifier.value) && Objects.equals(span, identifier.span);
   }

pkl-parser/src/main/java/org/pkl/parser/syntax/ImportClause.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -37,7 +37,9 @@ public final class ImportClause extends AbstractNode {
 
   public StringConstant getImportStr() {
     assert children != null;
-    return (StringConstant) children.get(0);
+    var ret = (StringConstant) children.get(0);
+    assert ret != null;
+    return ret;
   }
 
   public boolean isGlob() {
@@ -57,12 +59,12 @@ public final class ImportClause extends AbstractNode {
   @SuppressWarnings("ConstantValue")
   @Override
   public boolean equals(Object o) {
-    if (this == o) {
-      return true;
-    }
     if (o == null || getClass() != o.getClass()) {
       return false;
     }
+    if (this == o) {
+      return true;
+    }
     if (!super.equals(o)) {
       return false;
     }

pkl-parser/src/main/java/org/pkl/parser/syntax/Modifier.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -44,12 +44,12 @@ public final class Modifier extends AbstractNode {
   @SuppressWarnings("ConstantValue")
   @Override
   public boolean equals(Object o) {
-    if (this == o) {
-      return true;
-    }
     if (o == null || getClass() != o.getClass()) {
       return false;
     }
+    if (this == o) {
+      return true;
+    }
     Modifier modifier = (Modifier) o;
     return value == modifier.value && Objects.equals(span, modifier.span);
   }

pkl-parser/src/main/java/org/pkl/parser/syntax/ModuleDecl.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -83,6 +83,8 @@ public final class ModuleDecl extends AbstractNode {
     if (extendsOrAmends != null) {
       return start.endWith(extendsOrAmends.span());
     }
-    return start.endWith(children.get(nameOffset + 1).span());
+    var end = children.get(nameOffset + 1);
+    assert end != null;
+    return start.endWith(end.span());
   }
 }

pkl-parser/src/main/java/org/pkl/parser/syntax/ObjectMember.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,6 +22,7 @@ import org.pkl.parser.ParserVisitor;
 import org.pkl.parser.Span;
 import org.pkl.parser.util.Nullable;
 
+@SuppressWarnings("unused")
 public abstract sealed class ObjectMember extends AbstractNode {
 
   public ObjectMember(Span span, @Nullable List<? extends @Nullable Node> children) {
@@ -40,7 +41,9 @@ public abstract sealed class ObjectMember extends AbstractNode {
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
   }
 
@@ -65,7 +68,9 @@ public abstract sealed class ObjectMember extends AbstractNode {
 
     public Identifier getIdentifier() {
       assert children != null;
-      return (Identifier) children.get(identifierOffset);
+      var ret = (Identifier) children.get(identifierOffset);
+      assert ret != null;
+      return ret;
     }
 
     public @Nullable TypeAnnotation getTypeAnnotation() {
@@ -106,12 +111,16 @@ public abstract sealed class ObjectMember extends AbstractNode {
 
     public Keyword getFunctionKeyword() {
       assert children != null;
-      return (Keyword) children.get(identifierOffset);
+      var ret = (Keyword) children.get(identifierOffset);
+      assert ret != null;
+      return ret;
     }
 
     public Identifier getIdentifier() {
       assert children != null;
-      return (Identifier) children.get(identifierOffset + 1);
+      var ret = (Identifier) children.get(identifierOffset + 1);
+      assert ret != null;
+      return ret;
     }
 
     public @Nullable TypeParameterList getTypeParameterList() {
@@ -121,7 +130,9 @@ public abstract sealed class ObjectMember extends AbstractNode {
 
     public ParameterList getParamList() {
       assert children != null;
-      return (ParameterList) children.get(identifierOffset + 3);
+      var ret = (ParameterList) children.get(identifierOffset + 3);
+      assert ret != null;
+      return ret;
     }
 
     public @Nullable TypeAnnotation getTypeAnnotation() {
@@ -131,7 +142,9 @@ public abstract sealed class ObjectMember extends AbstractNode {
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(identifierOffset + 5);
+      var ret = (Expr) children.get(identifierOffset + 5);
+      assert ret != null;
+      return ret;
     }
 
     @SuppressWarnings("DuplicatedCode")
@@ -147,7 +160,9 @@ public abstract sealed class ObjectMember extends AbstractNode {
       Span end;
       var typeAnnotation = children.get(identifierOffset + 4);
       if (typeAnnotation == null) {
-        end = children.get(identifierOffset + 3).span();
+        var stop = children.get(identifierOffset + 3);
+        assert stop != null;
+        end = stop.span();
       } else {
         end = typeAnnotation.span();
       }
@@ -168,7 +183,9 @@ public abstract sealed class ObjectMember extends AbstractNode {
 
     public Expr getPred() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public @Nullable Expr getExpr() {
@@ -195,7 +212,9 @@ public abstract sealed class ObjectMember extends AbstractNode {
 
     public Expr getKey() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public @Nullable Expr getValue() {
@@ -225,7 +244,9 @@ public abstract sealed class ObjectMember extends AbstractNode {
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public boolean isNullable() {
@@ -247,12 +268,12 @@ public abstract sealed class ObjectMember extends AbstractNode {
     @SuppressWarnings("ConstantValue")
     @Override
     public boolean equals(Object o) {
-      if (this == o) {
-        return true;
-      }
       if (o == null || getClass() != o.getClass()) {
         return false;
       }
+      if (this == o) {
+        return true;
+      }
       if (!super.equals(o)) {
         return false;
       }
@@ -279,12 +300,16 @@ public abstract sealed class ObjectMember extends AbstractNode {
 
     public Expr getPredicate() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public ObjectBody getThenClause() {
       assert children != null;
-      return (ObjectBody) children.get(1);
+      var ret = (ObjectBody) children.get(1);
+      assert ret != null;
+      return ret;
     }
 
     public @Nullable ObjectBody getElseClause() {
@@ -306,7 +331,9 @@ public abstract sealed class ObjectMember extends AbstractNode {
 
     public Parameter getP1() {
       assert children != null;
-      return (Parameter) children.get(0);
+      var ret = (Parameter) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public @Nullable Parameter getP2() {
@@ -316,12 +343,16 @@ public abstract sealed class ObjectMember extends AbstractNode {
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(2);
+      var ret = (Expr) children.get(2);
+      assert ret != null;
+      return ret;
     }
 
     public ObjectBody getBody() {
       assert children != null;
-      return (ObjectBody) children.get(3);
+      var ret = (ObjectBody) children.get(3);
+      assert ret != null;
+      return ret;
     }
 
     public Span forSpan() {

pkl-parser/src/main/java/org/pkl/parser/syntax/Parameter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -46,7 +46,9 @@ public abstract sealed class Parameter extends AbstractNode {
 
     public Identifier getIdentifier() {
       assert children != null;
-      return (Identifier) children.get(0);
+      var ret = (Identifier) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public @Nullable TypeAnnotation getTypeAnnotation() {

pkl-parser/src/main/java/org/pkl/parser/syntax/StringConstant.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -45,12 +45,12 @@ public class StringConstant extends AbstractNode {
   @SuppressWarnings("ConstantValue")
   @Override
   public boolean equals(Object o) {
-    if (this == o) {
-      return true;
-    }
     if (o == null || getClass() != o.getClass()) {
       return false;
     }
+    if (this == o) {
+      return true;
+    }
     if (!super.equals(o)) {
       return false;
     }

pkl-parser/src/main/java/org/pkl/parser/syntax/StringPart.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -52,12 +52,12 @@ public abstract sealed class StringPart extends AbstractNode {
     @SuppressWarnings("ConstantValue")
     @Override
     public boolean equals(Object o) {
-      if (this == o) {
-        return true;
-      }
       if (o == null || getClass() != o.getClass()) {
         return false;
       }
+      if (this == o) {
+        return true;
+      }
       if (!super.equals(o)) {
         return false;
       }
@@ -78,7 +78,9 @@ public abstract sealed class StringPart extends AbstractNode {
 
     public Expr getExpr() {
       assert children != null;
-      return (Expr) children.get(0);
+      var ret = (Expr) children.get(0);
+      assert ret != null;
+      return ret;
     }
   }
 }

pkl-parser/src/main/java/org/pkl/parser/syntax/Type.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -73,7 +73,9 @@ public abstract sealed class Type extends AbstractNode {
 
     public StringConstant getStr() {
       assert children != null;
-      return (StringConstant) children.get(0);
+      var ret = (StringConstant) children.get(0);
+      assert ret != null;
+      return ret;
     }
   }
 
@@ -89,7 +91,9 @@ public abstract sealed class Type extends AbstractNode {
 
     public QualifiedIdentifier getName() {
       assert children != null;
-      return (QualifiedIdentifier) children.get(0);
+      var ret = (QualifiedIdentifier) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     public @Nullable TypeArgumentList getArgs() {
@@ -110,7 +114,9 @@ public abstract sealed class Type extends AbstractNode {
 
     public Type getType() {
       assert children != null;
-      return (Type) children.get(0);
+      var ret = (Type) children.get(0);
+      assert ret != null;
+      return ret;
     }
   }
 
@@ -126,7 +132,9 @@ public abstract sealed class Type extends AbstractNode {
 
     public Type getType() {
       assert children != null;
-      return (Type) children.get(0);
+      var ret = (Type) children.get(0);
+      assert ret != null;
+      return ret;
     }
   }
 
@@ -142,7 +150,9 @@ public abstract sealed class Type extends AbstractNode {
 
     public Type getType() {
       assert children != null;
-      return (Type) children.get(0);
+      var ret = (Type) children.get(0);
+      assert ret != null;
+      return ret;
     }
 
     @SuppressWarnings("unchecked")
@@ -190,12 +200,12 @@ public abstract sealed class Type extends AbstractNode {
     @SuppressWarnings("ConstantValue")
     @Override
     public boolean equals(Object o) {
-      if (this == o) {
-        return true;
-      }
       if (o == null || getClass() != o.getClass()) {
         return false;
       }
+      if (this == o) {
+        return true;
+      }
       if (!super.equals(o)) {
         return false;
       }
@@ -227,7 +237,9 @@ public abstract sealed class Type extends AbstractNode {
 
     public Type getRet() {
       assert children != null;
-      return (Type) children.get(children.size() - 1);
+      var ret = (Type) children.get(children.size() - 1);
+      assert ret != null;
+      return ret;
     }
   }
 }

pkl-parser/src/main/java/org/pkl/parser/syntax/TypeAlias.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,6 +20,7 @@ import org.pkl.parser.ParserVisitor;
 import org.pkl.parser.Span;
 import org.pkl.parser.util.Nullable;
 
+@SuppressWarnings("unused")
 public final class TypeAlias extends AbstractNode {
   private final int modifiersOffset;
   private final int nameOffset;
@@ -54,12 +55,16 @@ public final class TypeAlias extends AbstractNode {
 
   public Keyword getTypealiasKeyword() {
     assert children != null;
-    return (Keyword) children.get(nameOffset);
+    var ret = (Keyword) children.get(nameOffset);
+    assert ret != null;
+    return ret;
   }
 
   public Identifier getName() {
     assert children != null;
-    return (Identifier) children.get(nameOffset + 1);
+    var ret = (Identifier) children.get(nameOffset + 1);
+    assert ret != null;
+    return ret;
   }
 
   public @Nullable TypeParameterList getTypeParameterList() {
@@ -69,7 +74,9 @@ public final class TypeAlias extends AbstractNode {
 
   public Type getType() {
     assert children != null;
-    return (Type) children.get(nameOffset + 3);
+    var ret = (Type) children.get(nameOffset + 3);
+    assert ret != null;
+    return ret;
   }
 
   @SuppressWarnings("DuplicatedCode")
@@ -83,7 +90,9 @@ public final class TypeAlias extends AbstractNode {
         break;
       }
     }
-    var end = children.get(nameOffset + 1).span();
+    var endNode = children.get(nameOffset + 1);
+    assert endNode != null;
+    var end = endNode.span();
     var tparList = children.get(nameOffset + 2);
     if (tparList != null) {
       end = tparList.span();

pkl-parser/src/main/java/org/pkl/parser/syntax/TypeAnnotation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -32,6 +32,8 @@ public class TypeAnnotation extends AbstractNode {
 
   public Type getType() {
     assert children != null;
-    return (Type) children.get(0);
+    var ret = (Type) children.get(0);
+    assert ret != null;
+    return ret;
   }
 }

pkl-parser/src/main/java/org/pkl/parser/syntax/TypeParameter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -40,7 +40,9 @@ public final class TypeParameter extends AbstractNode {
 
   public Identifier getIdentifier() {
     assert children != null;
-    return (Identifier) children.get(0);
+    var ret = (Identifier) children.get(0);
+    assert ret != null;
+    return ret;
   }
 
   @Override
@@ -58,12 +60,12 @@ public final class TypeParameter extends AbstractNode {
   @SuppressWarnings("ConstantValue")
   @Override
   public boolean equals(Object o) {
-    if (this == o) {
-      return true;
-    }
     if (o == null || getClass() != o.getClass()) {
       return false;
     }
+    if (this == o) {
+      return true;
+    }
     if (!super.equals(o)) {
       return false;
     }

pkl-parser/src/test/kotlin/org/pkl/parser/GenericSexpRenderer.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2025-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -71,19 +71,6 @@ class GenericSexpRenderer(code: String) {
     buf.append(')')
   }
 
-  private fun renderQualifiedAccess(node: Node) {
-    var children = node.children
-    if (children.last().type == NodeType.UNQUALIFIED_ACCESS_EXPR) {
-      children = children.dropLast(1) + collectChildren(children.last())
-    }
-    val toRender = mutableListOf<Node>()
-    for (child in children) {
-      if (child.type in IGNORED_CHILDREN || child.type == NodeType.OPERATOR) continue
-      toRender += child
-    }
-    doRender(name(node), toRender)
-  }
-
   private fun renderDefaultUnionType(node: Node) {
     buf.append(tab)
     buf.append("(defaultUnionType\n")

pkl-parser/src/test/kotlin/org/pkl/parser/SexpRenderer.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2024-2025 Apple Inc. and the Pkl project authors. All rights reserved.
+ * Copyright © 2024-2026 Apple Inc. and the Pkl project authors. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -1092,7 +1092,7 @@ class SexpRenderer {
   }
 
   companion object {
-    private fun sortModuleEntries(mod: org.pkl.parser.syntax.Module): List<Node> {
+    private fun sortModuleEntries(mod: Module): List<Node> {
       val res = mutableListOf<Node>()
       res += mod.classes
       res += mod.typeAliases