Updated with a simple erasure test case - will need more later!

bcel-builder/testdata/ErasureTestData.java

@@ -0,0 +1,7 @@
+import java.util.*;
+
+public class ErasureTestData {
+
+  public Vector<String> getData() { return null; }
+
+}

bcel-builder/testsrc/org/aspectj/apache/bcel/classfile/tests/AllTests.java

@@ -50,6 +50,7 @@ public class AllTests {
 		suite.addTestSuite(TypeAnnotationsTest.class);
 		suite.addTestSuite(UtilTests.class);
 		suite.addTestSuite(GenericSignatureParsingTest.class);
+		suite.addTestSuite(GenericsErasureTesting.class);
 		//$JUnit-END$
 		return suite;
 	}

bcel-builder/testsrc/org/aspectj/apache/bcel/classfile/tests/GenericsErasureTesting.java

@@ -0,0 +1,50 @@
+/* *******************************************************************
+ * Copyright (c) 2005 Contributors
+ * All rights reserved. 
+ * This program and the accompanying materials are made available 
+ * under the terms of the Common Public License v1.0 
+ * which accompanies this distribution and is available at 
+ * http://www.eclipse.org/legal/cpl-v10.html 
+ *  
+ * Contributors: 
+ *     Andy Clement (IBM)     initial implementation 
+ * ******************************************************************/
+package org.aspectj.apache.bcel.classfile.tests;
+
+import org.aspectj.apache.bcel.classfile.Attribute;
+import org.aspectj.apache.bcel.classfile.JavaClass;
+import org.aspectj.apache.bcel.classfile.Method;
+import org.aspectj.apache.bcel.classfile.Signature;
+
+/**
+ * Should be possible to recover original declared signatures after erasure by using
+ * the signature attribute.
+ */
+public class GenericsErasureTesting extends BcelTestCase {
+	
+	
+	public void testLoadingGenerics() throws ClassNotFoundException {
+		JavaClass clazz = getClassFromJar("ErasureTestData");
+		Method m = getMethod(clazz,"getData");
+		String sig = m.getDeclaredSignature();
+		System.err.println(getSignatureAttribute(clazz,"getData"));
+		System.err.println(sig);
+		assertTrue("Incorrect: "+sig,sig.equals("()Ljava/util/Vector<Ljava/lang/String;>;"));
+	}
+	
+	
+	// helper methods below
+	
+	public Signature getSignatureAttribute(JavaClass clazz,String name) {
+		Method m = getMethod(clazz,name);
+		Attribute[] as = m.getAttributes();
+		for (int i = 0; i < as.length; i++) {
+			Attribute attribute = as[i];
+			if (attribute.getName().equals("Signature")) {
+				return (Signature)attribute;
+			}
+		}
+		return null;
+	}
+	
+}