418129: annos on top most implementor method

tests/bugs174/pr418129/Target.java

@@ -0,0 +1,27 @@
+import java.lang.annotation.*;
+
+interface Behavior { 
+String hello(); 
+}
+
+aspect Trait {
+ //   public String Behavior.name;
+	
+	public String Behavior.hello() {
+		return "hello";
+	}
+}
+
+public class Target implements Behavior {
+	public static aspect A {
+//		declare @field: * Target.name: @Tagged; // NO WORKY
+		declare @method: * Target.hello(..): @Tagged; // NO WORKY
+	}
+
+    public static void main(String []argv) throws Exception {
+      System.out.println(Target.class.getDeclaredMethod("hello").getDeclaredAnnotations()[0]);
+    }
+}
+
+@Retention(RetentionPolicy.RUNTIME)
+@interface Tagged {}

tests/bugs174/pr418129/Target2.java

@@ -0,0 +1,27 @@
+import java.lang.annotation.*;
+
+interface Behavior { 
+	String hello(); 
+}
+
+aspect Trait {
+//	public String Behavior.name;
+	
+	public String Behavior.hello() throws java.io.IOException {
+		return "hello";
+	}
+}
+
+public class Target2 implements Behavior {
+	public static aspect A {
+//	declare @field: * Target2.name: @Tagged; // NO WORKY
+		declare @method: * Target2.hello(..): @Tagged; // NO WORKY
+	}
+
+    public static void main(String []argv) throws Exception {
+      System.out.println(Target2.class.getDeclaredMethod("hello").getDeclaredAnnotations()[0]);
+    }
+}
+
+@Retention(RetentionPolicy.RUNTIME)
+@interface Tagged {}

tests/bugs174/pr418129/Target3.java

@@ -0,0 +1,27 @@
+import java.lang.annotation.*;
+
+interface Behavior { 
+	String hello(); 
+}
+
+aspect Trait {
+    @Wibble
+	public String Behavior.hello() throws java.io.IOException {
+		return "hello";
+	}
+}
+
+public class Target3 implements Behavior {
+	public static aspect A {
+		declare @method: * Target3.hello(..): @Tagged;
+	}
+
+    public static void main(String []argv) throws Exception {
+      System.out.println(Target3.class.getDeclaredMethod("hello").getDeclaredAnnotations().length);
+      System.out.println(Target3.class.getDeclaredMethod("hello").getDeclaredAnnotations()[0]);
+      System.out.println(Target3.class.getDeclaredMethod("hello").getDeclaredAnnotations()[1]);
+    }
+}
+
+@Retention(RetentionPolicy.RUNTIME) @interface Tagged {}
+@Retention(RetentionPolicy.RUNTIME) @interface Wibble {}

tests/bugs174/pr418129/Target4.java

@@ -0,0 +1,25 @@
+import java.lang.annotation.*;
+
+interface Behavior { 
+	String hello(); 
+}
+
+aspect Trait {
+    @Tagged(31)
+	public String Behavior.hello() throws java.io.IOException {
+		return "hello";
+	}
+}
+
+public class Target4 implements Behavior {
+	public static aspect A {
+		declare @method: * Target4.hello(..): @Tagged;
+	}
+
+    public static void main(String []argv) throws Exception {
+      System.out.println(Target4.class.getDeclaredMethod("hello").getDeclaredAnnotations().length);
+      System.out.println(Target4.class.getDeclaredMethod("hello").getDeclaredAnnotations()[0]);
+    }
+}
+
+@Retention(RetentionPolicy.RUNTIME) @interface Tagged { int value() default 42;}

tests/src/org/aspectj/systemtest/ajc174/Ajc174Tests.java

@@ -21,6 +21,22 @@ import org.aspectj.testing.XMLBasedAjcTestCase;
  */
 public class Ajc174Tests extends org.aspectj.testing.XMLBasedAjcTestCase {
 	
+	public void testAnnotatedItd_418129() throws Exception {
+		runTest("annotated itd");
+	}
+	
+	public void testAnnotatedItd_418129_2() throws Exception {
+		runTest("annotated itd 2");
+	}
+	
+	public void testAnnotatedItd_418129_3() throws Exception {
+		runTest("annotated itd 3");
+	}
+	
+	public void testAnnotatedItd_418129_4() throws Exception {
+		runTest("annotated itd 4");
+	}
+
 	public void testSuperItdCtor_413378() throws Exception {
 		runTest("super itd ctor");
 	}

tests/src/org/aspectj/systemtest/ajc174/ajc174.xml

@@ -2,6 +2,67 @@
 
 <suite>
 
+	<ajc-test dir="bugs174/pr418129" title="annotated itd">
+		<compile files="Target.java" options="-1.5 -showWeaveInfo">
+			<message kind="weave" text="Type 'Behavior' (Target.java) has intertyped method from 'Trait' (Target.java:'java.lang.String Behavior.hello()')"/>
+			<message kind="weave" text="Type 'Target' (Target.java) has intertyped method from 'Trait' (Target.java:'java.lang.String Behavior.hello()')"/>
+			<message kind="weave" text="'public java.lang.String Target.hello()' (Target.java) is annotated with @Tagged method annotation from 'Target$A' (Target.java:18)"/>
+		</compile>
+		<run class="Target">
+		<stdout>
+		<line text="@Tagged()"/>
+		</stdout>
+		</run>
+	</ajc-test>
+	
+	<!-- declared with throws exception -->
+	<ajc-test dir="bugs174/pr418129" title="annotated itd 2">
+		<compile files="Target2.java" options="-1.5 -showWeaveInfo">
+			<message kind="weave" text="Type 'Behavior' (Target2.java) has intertyped method from 'Trait' (Target2.java:'java.lang.String Behavior.hello()')"/>
+			<message kind="weave" text="Type 'Target2' (Target2.java) has intertyped method from 'Trait' (Target2.java:'java.lang.String Behavior.hello()')"/>
+			<message kind="weave" text="'public java.lang.String Target2.hello()' (Target2.java) is annotated with @Tagged method annotation from 'Target2$A' (Target2.java:18)"/>
+		</compile>
+		<run class="Target2">
+		<stdout>
+		<line text="@Tagged()"/>
+		</stdout>
+		</run>
+	</ajc-test>
+	
+	<!-- already annotated with another annotation -->
+	<ajc-test dir="bugs174/pr418129" title="annotated itd 3">
+		<compile files="Target3.java" options="-1.5 -showWeaveInfo">
+			<message kind="weave" text="Type 'Behavior' (Target3.java) has intertyped method from 'Trait' (Target3.java:'java.lang.String Behavior.hello()')"/>
+			<message kind="weave" text="Type 'Target3' (Target3.java) has intertyped method from 'Trait' (Target3.java:'java.lang.String Behavior.hello()')"/>
+			<message kind="weave" text="'public java.lang.String Target3.hello()' (Target3.java) is annotated with @Tagged method annotation from 'Target3$A' (Target3.java:16)"/>
+		</compile>
+		<run class="Target3">
+		<stdout>
+		<line text="2"/>
+		<line text="@Wibble()"/>
+		<line text="@Tagged()"/>
+		</stdout>
+		</run>
+	</ajc-test>
+	
+	<!-- already annotated with the same annotation -->
+	<ajc-test dir="bugs174/pr418129" title="annotated itd 4">
+		<compile files="Target4.java" options="-1.5 -showWeaveInfo">
+			<message kind="weave" text="Type 'Behavior' (Target4.java) has intertyped method from 'Trait' (Target4.java:'java.lang.String Behavior.hello()')"/>
+			<message kind="weave" text="Type 'Target4' (Target4.java) has intertyped method from 'Trait' (Target4.java:'java.lang.String Behavior.hello()')"/>
+			<!--  warning turned off as it gets confusing - when the itd on the interface is hit by a deca -->
+			<!-- 
+			<message kind="warning" text="java.lang.String Target4.hello() - already has an annotation of type Tagged, cannot add a second instance [Xlint:elementAlreadyAnnotated]"/>
+			-->
+		</compile>
+		<run class="Target4">
+		<stdout>
+		<line text="1"/>
+		<line text="@Tagged(value=31)"/>
+		</stdout>
+		</run>
+	</ajc-test>
+	
 	<ajc-test dir="bugs174/pr413378" title="super itd ctor">
 		<compile files="Code.java" options="-1.5 -showWeaveInfo">
 			<message kind="weave" text="Type 'Child' (Code.java) has intertyped constructor from 'MyTest' (Code.java:'void Child.&lt;init&gt;(java.lang.String, int)')"/>

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

@@ -68,6 +68,7 @@ import org.aspectj.weaver.ConcreteTypeMunger;
 import org.aspectj.weaver.IClassWeaver;
 import org.aspectj.weaver.IntMap;
 import org.aspectj.weaver.Member;
+import org.aspectj.weaver.MemberKind;
 import org.aspectj.weaver.MissingResolvedTypeWithKnownSignature;
 import org.aspectj.weaver.NameMangler;
 import org.aspectj.weaver.NewConstructorTypeMunger;
@@ -532,8 +533,7 @@ class BcelClassWeaver implements IClassWeaver {
 		// finally, if we changed, we add in the introduced methods.
 		if (isChanged) {
 			clazz.getOrCreateWeaverStateInfo(inReweavableMode);
-			weaveInAddedMethods(); // FIXME asc are these potentially affected
-			// by declare annotation?
+			weaveInAddedMethods();
 		}
 
 		if (inReweavableMode) {
@@ -893,15 +893,91 @@ class BcelClassWeaver implements IClassWeaver {
 			isChanged = weaveAtMethodOnITDSRepeatedly(allDecams, itdMethodsCtors, reportedProblems);
 		}
 
-		// deal with all the other methods...
-		List<LazyMethodGen> members = clazz.getMethodGens();
 		List<DeclareAnnotation> decaMs = getMatchingSubset(allDecams, clazz.getType());
 		if (decaMs.isEmpty()) {
 			return false; // nothing to do
 		}
+		
+		Set<DeclareAnnotation> unusedDecams = new HashSet<DeclareAnnotation>();
+		unusedDecams.addAll(decaMs);
+
+		// These methods may have been targeted with declare annotation.  Example: ITD on an interface
+		// where the top most implementor gets a real method.  The top most implementor method
+		// is an 'addedLazyMethodGen'
+		if (addedLazyMethodGens!=null) {
+			for (LazyMethodGen method: addedLazyMethodGens) {
+				// They have no resolvedmember of their own, conjure one up for matching purposes
+				ResolvedMember resolvedmember = 
+					new ResolvedMemberImpl(ResolvedMember.METHOD,method.getEnclosingClass().getType(),method.getAccessFlags(),
+							BcelWorld.fromBcel(method.getReturnType()),method.getName(),
+							BcelWorld.fromBcel(method.getArgumentTypes()),UnresolvedType.forNames(method.getDeclaredExceptions()));
+				resolvedmember.setAnnotationTypes(method.getAnnotationTypes());
+				resolvedmember.setAnnotations(method.getAnnotations());
+
+				List<DeclareAnnotation> worthRetrying = new ArrayList<DeclareAnnotation>();
+				boolean modificationOccured = false;
+				for (DeclareAnnotation decam: decaMs) {
+					if (decam.matches(resolvedmember, world)) {
+						if (doesAlreadyHaveAnnotation(resolvedmember, decam, reportedProblems,false)) {
+							// remove the declare @method since don't want an error when the annotation is already there
+							unusedDecams.remove(decam);
+							continue;
+						}
+
+						AnnotationGen a = ((BcelAnnotation) decam.getAnnotation()).getBcelAnnotation();
+						// create copy to get the annotation type into the right constant pool
+						AnnotationAJ aj = new BcelAnnotation(new AnnotationGen(a, clazz.getConstantPool(), true),world);
+						method.addAnnotation(aj);
+						resolvedmember.addAnnotation(decam.getAnnotation());
+
+						AsmRelationshipProvider.addDeclareAnnotationMethodRelationship(decam.getSourceLocation(),
+								clazz.getName(), resolvedmember, world.getModelAsAsmManager());
+						reportMethodCtorWeavingMessage(clazz, resolvedmember, decam, method.getDeclarationLineNumber());
+						isChanged = true;
+						modificationOccured = true;
+						unusedDecams.remove(decam);
+					} else if (!decam.isStarredAnnotationPattern()) {
+						// an annotation is specified that might be put on by a subsequent decaf
+						worthRetrying.add(decam); 
+					}
+				}
+
+				// Multiple secondary passes
+				while (!worthRetrying.isEmpty() && modificationOccured) {
+					modificationOccured = false;
+					// lets have another go
+					List<DeclareAnnotation> forRemoval = new ArrayList<DeclareAnnotation>();
+					for (DeclareAnnotation decam : worthRetrying) {
+						if (decam.matches(resolvedmember, world)) {
+							if (doesAlreadyHaveAnnotation(resolvedmember, decam, reportedProblems,false)) {
+								// remove the declare @method since don't
+								// want an error when
+								// the annotation is already there
+								unusedDecams.remove(decam);
+								continue; // skip this one...
+							}
+							AnnotationGen a = ((BcelAnnotation) decam.getAnnotation()).getBcelAnnotation();
+							// create copy to get the annotation type into the right constant pool
+							AnnotationAJ aj = new BcelAnnotation(new AnnotationGen(a, clazz.getConstantPool(), true),world);
+							method.addAnnotation(aj);
+							resolvedmember.addAnnotation(decam.getAnnotation());
+							AsmRelationshipProvider.addDeclareAnnotationMethodRelationship(decam.getSourceLocation(),
+									clazz.getName(), resolvedmember, world.getModelAsAsmManager());// getMethod());
+							isChanged = true;
+							modificationOccured = true;
+							forRemoval.add(decam);
+							unusedDecams.remove(decam);
+						}
+					}
+					worthRetrying.removeAll(forRemoval);
+				}
+			}
+		}
+		
+		
+		// deal with all the other methods...
+		List<LazyMethodGen> members = clazz.getMethodGens();
 		if (!members.isEmpty()) {
-			Set<DeclareAnnotation> unusedDecams = new HashSet<DeclareAnnotation>();
-			unusedDecams.addAll(decaMs);
 			for (int memberCounter = 0; memberCounter < members.size(); memberCounter++) {
 				LazyMethodGen mg = members.get(memberCounter);
 				if (!mg.getName().startsWith(NameMangler.PREFIX)) {
@@ -913,7 +989,7 @@ class BcelClassWeaver implements IClassWeaver {
 					for (DeclareAnnotation decaM : decaMs) {
 
 						if (decaM.matches(mg.getMemberView(), world)) {
-							if (doesAlreadyHaveAnnotation(mg.getMemberView(), decaM, reportedProblems)) {
+							if (doesAlreadyHaveAnnotation(mg.getMemberView(), decaM, reportedProblems,true)) {
 								// remove the declare @method since don't want
 								// an error when the annotation is already there
 								unusedDecams.remove(decaM);
@@ -954,7 +1030,7 @@ class BcelClassWeaver implements IClassWeaver {
 						List<DeclareAnnotation> forRemoval = new ArrayList<DeclareAnnotation>();
 						for (DeclareAnnotation decaM : worthRetrying) {
 							if (decaM.matches(mg.getMemberView(), world)) {
-								if (doesAlreadyHaveAnnotation(mg.getMemberView(), decaM, reportedProblems)) {
+								if (doesAlreadyHaveAnnotation(mg.getMemberView(), decaM, reportedProblems,true)) {
 									// remove the declare @method since don't
 									// want an error when
 									// the annotation is already there
@@ -1347,7 +1423,7 @@ class BcelClassWeaver implements IClassWeaver {
 								unusedDecafs.remove(decaf);
 							} else {
 								if (!dontAddTwice(decaf, dontAddMeTwice)) {
-									if (doesAlreadyHaveAnnotation(field, decaf, reportedProblems)) {
+									if (doesAlreadyHaveAnnotation(field, decaf, reportedProblems,true )) {
 										// remove the declare @field since don't want an error when the annotation is already there
 										unusedDecafs.remove(decaf);
 										continue;
@@ -1389,7 +1465,7 @@ class BcelClassWeaver implements IClassWeaver {
 								} else {
 									// below code is for recursive things
 									unusedDecafs.remove(decaF);
-									if (doesAlreadyHaveAnnotation(field, decaF, reportedProblems)) {
+									if (doesAlreadyHaveAnnotation(field, decaF, reportedProblems,true)) {
 										continue;
 									}
 									field.addAnnotation(decaF.getAnnotation());
@@ -1486,9 +1562,9 @@ class BcelClassWeaver implements IClassWeaver {
 	/**
 	 * Check if a resolved member (field/method/ctor) already has an annotation, if it does then put out a warning and return true
 	 */
-	private boolean doesAlreadyHaveAnnotation(ResolvedMember rm, DeclareAnnotation deca, List<Integer> reportedProblems) {
+	private boolean doesAlreadyHaveAnnotation(ResolvedMember rm, DeclareAnnotation deca, List<Integer> reportedProblems, boolean reportError) {
 		if (rm.hasAnnotation(deca.getAnnotationType())) {
-			if (world.getLint().elementAlreadyAnnotated.isEnabled()) {
+			if (reportError && world.getLint().elementAlreadyAnnotated.isEnabled()) {
 				Integer uniqueID = new Integer(rm.hashCode() * deca.hashCode());
 				if (!reportedProblems.contains(uniqueID)) {
 					reportedProblems.add(uniqueID);

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

@@ -345,6 +345,22 @@ public class BcelWorld extends World implements Repository {
 		return ret;
 	}
 
+	public static Type[] makeBcelTypes(String[] types) {
+		if (types == null || types.length==0 ) {
+			return null;
+		}
+		Type[] ret = new Type[types.length];
+		for (int i=0, len=types.length; i<len; i++) {
+			ret[i] = makeBcelType(types[i]);
+		}
+		return ret;
+	}
+	
+	public static Type makeBcelType(String type) {
+		return Type.getType(type);
+	}
+
+
 	static String[] makeBcelTypesAsClassNames(UnresolvedType[] types) {
 		String[] ret = new String[types.length];
 		for (int i = 0, len = types.length; i < len; i++) {
@@ -1239,4 +1255,5 @@ public class BcelWorld extends World implements Repository {
 	public void demote(ResolvedType type) {
 		typeMap.demote(type);
 	}
+
 }

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

@@ -124,6 +124,15 @@ public final class LazyMethodGen implements Traceable {
 	List<BcelShadow> matchedShadows;
 	// Used for interface introduction - this is the type of the interface the method is technically on
 	public ResolvedType definingType = null;
+	
+	static class LightweightBcelMethod extends BcelMethod {
+
+		LightweightBcelMethod(BcelObjectType declaringType, Method method) {
+			super(declaringType, method);
+			// TODO Auto-generated constructor stub
+		}
+		
+	}
 
 	public LazyMethodGen(int modifiers, Type returnType, String name, Type[] paramTypes, String[] declaredExceptions,
 			LazyClassGen enclosingClass) {
@@ -304,6 +313,27 @@ public final class LazyMethodGen implements Traceable {
 			memberView.addParameterAnnotation(parameterNumber, anno);
 		}
 	}
+	
+	public ResolvedType[] getAnnotationTypes() {
+		initialize();
+		if (memberView == null && newAnnotations!=null && newAnnotations.size()!=0) {
+			// TODO Ignoring removed annotations for now
+			ResolvedType[] annotationTypes = new ResolvedType[newAnnotations.size()];
+			for (int a=0,len=newAnnotations.size();a<len;a++) {
+				annotationTypes[a] = newAnnotations.get(a).getType();
+			}
+			return annotationTypes;
+		}
+		return null;
+	}
+	
+	public AnnotationAJ[] getAnnotations() {
+		initialize();
+		if (memberView == null && newAnnotations!=null && newAnnotations.size()!=0) {
+			return newAnnotations.toArray(new AnnotationAJ[newAnnotations.size()]);
+		}
+		return null;
+	}
 
 	public boolean hasAnnotation(UnresolvedType annotationType) {
 		initialize();