diff --git a/src/tests/junit/org/apache/tools/ant/taskdefs/compilers/DefaultCompilerAdapterTest.java b/src/tests/junit/org/apache/tools/ant/taskdefs/compilers/DefaultCompilerAdapterTest.java
index 31260622d..946346ecf 100644
--- a/src/tests/junit/org/apache/tools/ant/taskdefs/compilers/DefaultCompilerAdapterTest.java
+++ b/src/tests/junit/org/apache/tools/ant/taskdefs/compilers/DefaultCompilerAdapterTest.java
@@ -45,6 +45,13 @@ public class DefaultCompilerAdapterTest extends TestCase {
         }
 
         public boolean execute() { return false; }
+
+        /**
+         * public to avoid classloader issues.
+         */
+        public Commandline setupModernJavacCommandlineSwitches(Commandline cmd) {
+            return super.setupModernJavacCommandlineSwitches(cmd);
+        }
     }
 
     public void testSourceIsIgnoredForJavac13() {