Make sure the generics are generated into the Resource implementation class so that Wink won't get confused

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1104536 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 22 insertions, 1 deletions

diff --git a/sca-java-2.x/trunk/modules/interface-java-jaxrs/src/main/java/org/apache/tuscany/sca/interfacedef/java/jaxrs/RootResourceClassGenerator.java b/sca-java-2.x/trunk/modules/interface-java-jaxrs/src/main/java/org/apache/tuscany/sca/interfacedef/java/jaxrs/RootResourceClassGenerator.java
index c3d1ec4421..c9fc8aafe3 100644
--- a/sca-java-2.x/trunk/modules/interface-java-jaxrs/src/main/java/org/apache/tuscany/sca/interfacedef/java/jaxrs/RootResourceClassGenerator.java
+++ b/sca-java-2.x/trunk/modules/interface-java-jaxrs/src/main/java/org/apache/tuscany/sca/interfacedef/java/jaxrs/RootResourceClassGenerator.java
@@ -89,8 +89,14 @@ public class RootResourceClassGenerator implements Opcodes {
                                        String produces) {
         String methodDescriptor = Type.getMethodDescriptor(method);
 
+        String signatureString = getSignature(method);
+
         MethodVisitor mv =
-            cw.visitMethod(ACC_PUBLIC, method.getName(), methodDescriptor, null, getExceptionInternalNames(method));
+            cw.visitMethod(ACC_PUBLIC,
+                           method.getName(),
+                           methodDescriptor,
+                           signatureString,
+                           getExceptionInternalNames(method));
 
         mv.visitCode();
         mv.visitFieldInsn(GETSTATIC, className, DELEGATE_FIELD, getSignature(interfaceName));
@@ -108,6 +114,21 @@ public class RootResourceClassGenerator implements Opcodes {
         mv.visitEnd();
     }
 
+    /**
+     * [rfeng] A hack to get the generic method signature
+     * @param method
+     * @return
+     */
+    private static String getSignature(Method method) {
+        try {
+            Field field = method.getClass().getDeclaredField("signature");
+            field.setAccessible(true);
+            return (String)field.get(method);
+        } catch (Throwable e) {
+            return null;
+        }
+    }
+
     private static String[] getExceptionInternalNames(Method method) {
         Class<?>[] types = method.getExceptionTypes();
         if (types.length == 0) {