pr122248, only unpack generic signatures if the world is in java 5 mode...

weaver/src/org/aspectj/weaver/bcel/BcelField.java

@@ -156,8 +156,11 @@ final class BcelField extends ResolvedMemberImpl {
 	}
 	
 	private void unpackGenericSignature() {
-		if (unpackedGenericSignature)
-			return;
+		if (unpackedGenericSignature) { return; }
+		if (!world.isInJava5Mode()) {
+			this.genericFieldType = getReturnType();
+			return; 
+		}
 		unpackedGenericSignature = true;
 		String gSig = field.getGenericSignature();
 		if (gSig != null) {

weaver/src/org/aspectj/weaver/bcel/BcelMethod.java

@@ -265,6 +265,12 @@ final class BcelMethod extends ResolvedMemberImpl {
 	 
 	 private void unpackGenericSignature() {
 		 if (unpackedGenericSignature) return;
+ 		 if (!world.isInJava5Mode()) { 
+ 			 this.genericReturnType = getReturnType();
+ 			 this.genericParameterTypes = getParameterTypes();
+ 			 return;
+ 		 }
+ 		 // ok, we have work to do...
 		 unpackedGenericSignature = true;
 		 String gSig = method.getGenericSignature();
 		 if (gSig != null) {

weaver/src/org/aspectj/weaver/bcel/BcelObjectType.java

@@ -633,6 +633,9 @@ public class BcelObjectType extends AbstractReferenceTypeDelegate {
 		
 	private void unpackGenericSignature() {
 		if (genericSignatureUnpacked) return;
+		if (!getResolvedTypeX().getWorld().isInJava5Mode()) {
+			return;
+		}
 		genericSignatureUnpacked = true;
 		Signature.ClassSignature cSig = getGenericClassTypeSignature();
 		if (cSig != null) {

weaver/testsrc/org/aspectj/weaver/MemberTestCase15.java

@@ -40,6 +40,7 @@ public class MemberTestCase15 extends TestCase {
 	    
 	    public void testCanBeParameterizedGenericMethod() {
 	    	BcelWorld world = new BcelWorld();
+	    	world.setBehaveInJava5Way(true);
 	    	ResolvedType javaLangClass = world.resolve(UnresolvedType.forName("java.lang.Class"));
 	    	javaLangClass = javaLangClass.getGenericType();
 	    	if (javaLangClass == null) return;  // for < 1.5
@@ -59,6 +60,7 @@ public class MemberTestCase15 extends TestCase {
 	    
 	    public void testCanBeParameterizedMethodInGenericType() {
 	       	BcelWorld world = new BcelWorld();
+	       	world.setBehaveInJava5Way(true);
 	    	ResolvedType javaUtilList = world.resolve(UnresolvedType.forName("java.util.List"));
 	    	javaUtilList = javaUtilList.getGenericType();
 	    	if (javaUtilList == null) return;  // for < 1.5