fix for Bugzilla Bug 67592 value in the args[] array of thisJoinPoint can be changed....

runtime/src/org/aspectj/runtime/reflect/JoinPointImpl.java

@@ -62,7 +62,12 @@ class JoinPointImpl implements JoinPoint {
 
     public Object getThis() { return _this; }
     public Object getTarget() { return target; }
-    public Object[] getArgs() { return args; }
+    public Object[] getArgs() {
+    	if (args == null) { args = new Object[0]; }
+    	Object[] argsCopy = new Object[args.length];
+    	System.arraycopy(args,0,argsCopy,0,args.length);
+    	return argsCopy; 
+    }
 
     public org.aspectj.lang.JoinPoint.StaticPart getStaticPart() { return staticPart; }
 

runtime/testsrc/RuntimeModuleTests.java

@@ -16,6 +16,7 @@
 import java.io.*;
 
 import org.aspectj.lang.*;
+import org.aspectj.runtime.reflect.JoinPointImplTest;
 import org.aspectj.runtime.reflect.SignatureTest;
 
 import junit.framework.*;
@@ -26,6 +27,7 @@ public class RuntimeModuleTests extends TestCase {
         TestSuite suite = new TestSuite(RuntimeModuleTests.class.getName());
         suite.addTestSuite(RuntimeModuleTests.class); // minimum 1 test (testNothing)
         suite.addTestSuite(SignatureTest.class);
+        suite.addTestSuite(JoinPointImplTest.class);
         return suite;
     }
 

runtime/testsrc/org/aspectj/runtime/reflect/JoinPointImplTest.java

@@ -0,0 +1,40 @@
+/*
+ * Created on 09-Aug-2004
+ *
+ * TODO To change the template for this generated file go to
+ * Window - Preferences - Java - Code Style - Code Templates
+ */
+package org.aspectj.runtime.reflect;
+
+import junit.framework.TestCase;
+
+/**
+ * @author colyer
+ *
+ * TODO To change the template for this generated type comment go to
+ * Window - Preferences - Java - Code Style - Code Templates
+ */
+public class JoinPointImplTest extends TestCase {
+
+	public void testGetArgs() {
+	    String arg1 = "abc";
+	    StringBuffer arg2 = new StringBuffer("def");
+	    Object arg3 = new Object();
+		Object[] args = new Object[] { arg1, arg2, arg3 };
+		JoinPointImpl jpi = new JoinPointImpl(null,null,null,args);
+		
+		Object[] retrievedArgs = jpi.getArgs();
+		assertEquals("First arg unchanged",arg1,retrievedArgs[0]);
+		assertEquals("Second arg unchanged",arg2,retrievedArgs[1]);
+		assertEquals("Third arg unchanged",arg3,retrievedArgs[2]);
+		retrievedArgs[0] = "xyz";
+		((StringBuffer)retrievedArgs[1]).append("ghi");
+		retrievedArgs[2] = "jkl";
+		Object[] afterUpdateArgs = jpi.getArgs();
+		assertEquals("Object reference not changed",arg1,afterUpdateArgs[0]);
+		assertEquals("Object reference unchanged",arg2,afterUpdateArgs[1]);
+		assertEquals("state of referenced object updated","defghi",afterUpdateArgs[1].toString());
+		assertEquals("Object reference not changed",arg3,afterUpdateArgs[2]);
+	}
+	
+}