gcc/java:

	PR java/18278:
	* expr.c (build_jni_stub): Unwrap the return value.
	* java-tree.h (soft_unwrapjni_node): New define.
	(enum java_tree_index): Added JTI_SOFT_UNWRAPJNI_NODE.
	* decl.c (java_init_decl_processing): Initialize
	soft_unwrapjni_node.
libjava:
	PR java/18278:
	* testsuite/libjava.jni/pr18278.out: New file.
	* testsuite/libjava.jni/pr18278.c: New file.
	* testsuite/libjava.jni/pr18278.java: New file.
	* include/jvm.h (_Jv_UnwrapJNIweakReference): Declare.
	* jni.cc (_Jv_UnwrapJNIweakReference): New function.
	(call): Unwrap return value if needed.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@107676 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 13 insertions, 0 deletions

diff --git a/libjava/jni.cc b/libjava/jni.cc
index 13bb12cf5dd..fd827065718 100644
--- a/libjava/jni.cc
+++ b/libjava/jni.cc
@@ -226,6 +226,12 @@ unwrap (T *obj)
   return reinterpret_cast<T *> (wr->get ());
 }
 
+jobject
+_Jv_UnwrapJNIweakReference (jobject obj)
+{
+  return unwrap (obj);
+}
+
 
 
 static jobject JNICALL
@@ -2304,6 +2310,13 @@ _Jv_JNIMethod::call (ffi_cif *, void *ret, ffi_raw *args, void *__this)
 		     ret, real_args);
 #endif
 
+  // We might need to unwrap a JNI weak reference here.
+  if (_this->jni_cif.rtype == &ffi_type_pointer)
+    {
+      _Jv_value *val = (_Jv_value *) ret;
+      val->object_value = unwrap (val->object_value);
+    }
+
   if (sync != NULL)
     _Jv_MonitorExit (sync);