diff --git a/dependency-check-core/src/test/java/org/owasp/dependencycheck/analyzer/ArchiveAnalyzerTest.java b/dependency-check-core/src/test/java/org/owasp/dependencycheck/analyzer/ArchiveAnalyzerTest.java
index 58acf2107..2eb953fe5 100644
--- a/dependency-check-core/src/test/java/org/owasp/dependencycheck/analyzer/ArchiveAnalyzerTest.java
+++ b/dependency-check-core/src/test/java/org/owasp/dependencycheck/analyzer/ArchiveAnalyzerTest.java
@@ -17,12 +17,18 @@ package org.owasp.dependencycheck.analyzer;
 
 import java.io.File;
 import java.io.FileFilter;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 import org.junit.After;
 import org.junit.AfterClass;
 import org.junit.Before;
 import org.junit.BeforeClass;
 import org.junit.Test;
 import static org.junit.Assert.*;
+import static org.junit.Assume.assumeFalse;
+import static org.junit.Assume.assumeNotNull;
 import org.owasp.dependencycheck.BaseTest;
 import org.owasp.dependencycheck.Engine;
 import org.owasp.dependencycheck.dependency.Dependency;
@@ -44,6 +50,7 @@ public class ArchiveAnalyzerTest extends BaseTest {
      */
     @Test
     public void testZippableExtensions() throws Exception {
+        assumeFalse(isPreviouslyLoaded("org.owasp.dependencycheck.analyzer.ArchiveAnalyzer"));
         ArchiveAnalyzer instance = new ArchiveAnalyzer();
         assertTrue(instance.getFileFilter().accept(new File("c:/test.zip")));
         assertTrue(instance.getFileFilter().accept(new File("c:/test.z2")));
@@ -51,4 +58,23 @@ public class ArchiveAnalyzerTest extends BaseTest {
         assertFalse(instance.getFileFilter().accept(new File("c:/test.z4")));
     }
 
+    private boolean isPreviouslyLoaded(String className) {
+        try {
+            Method m = ClassLoader.class.getDeclaredMethod("findLoadedClass", new Class[]{String.class});
+            m.setAccessible(true);
+            Object t = m.invoke(Thread.currentThread().getContextClassLoader(), className);
+            return t != null;
+        } catch (NoSuchMethodException ex) {
+            Logger.getLogger(ArchiveAnalyzerTest.class.getName()).log(Level.SEVERE, null, ex);
+        } catch (SecurityException ex) {
+            Logger.getLogger(ArchiveAnalyzerTest.class.getName()).log(Level.SEVERE, null, ex);
+        } catch (IllegalAccessException ex) {
+            Logger.getLogger(ArchiveAnalyzerTest.class.getName()).log(Level.SEVERE, null, ex);
+        } catch (IllegalArgumentException ex) {
+            Logger.getLogger(ArchiveAnalyzerTest.class.getName()).log(Level.SEVERE, null, ex);
+        } catch (InvocationTargetException ex) {
+            Logger.getLogger(ArchiveAnalyzerTest.class.getName()).log(Level.SEVERE, null, ex);
+        }
+        return false;
+    }
 }