hotspot/src/share/vm/runtime/sharedRuntime.cpp
changeset 17381 a53ac5bf4850
parent 17125 db7ed6249110
child 17872 2c49e72dcf08
child 22806 7d1955769e90
--- a/hotspot/src/share/vm/runtime/sharedRuntime.cpp	Fri May 03 15:35:30 2013 -0700
+++ b/hotspot/src/share/vm/runtime/sharedRuntime.cpp	Mon May 06 13:53:13 2013 -0700
@@ -883,15 +883,23 @@
 }
 
 
-JNI_ENTRY(void, throw_unsatisfied_link_error(JNIEnv* env, ...))
+/**
+ * Throws an java/lang/UnsatisfiedLinkError.  The address of this method is
+ * installed in the native function entry of all native Java methods before
+ * they get linked to their actual native methods.
+ *
+ * \note
+ * This method actually never gets called!  The reason is because
+ * the interpreter's native entries call NativeLookup::lookup() which
+ * throws the exception when the lookup fails.  The exception is then
+ * caught and forwarded on the return from NativeLookup::lookup() call
+ * before the call to the native function.  This might change in the future.
+ */
+JNI_ENTRY(void*, throw_unsatisfied_link_error(JNIEnv* env, ...))
 {
-  THROW(vmSymbols::java_lang_UnsatisfiedLinkError());
-}
-JNI_END
-
-JNI_ENTRY(void, throw_unsupported_operation_exception(JNIEnv* env, ...))
-{
-  THROW(vmSymbols::java_lang_UnsupportedOperationException());
+  // We return a bad value here to make sure that the exception is
+  // forwarded before we look at the return value.
+  THROW_(vmSymbols::java_lang_UnsatisfiedLinkError(), (void*)badJNIHandle);
 }
 JNI_END
 
@@ -899,10 +907,6 @@
   return CAST_FROM_FN_PTR(address, &throw_unsatisfied_link_error);
 }
 
-address SharedRuntime::native_method_throw_unsupported_operation_exception_entry() {
-  return CAST_FROM_FN_PTR(address, &throw_unsupported_operation_exception);
-}
-
 
 #ifndef PRODUCT
 JRT_ENTRY(intptr_t, SharedRuntime::trace_bytecode(JavaThread* thread, intptr_t preserve_this_value, intptr_t tos, intptr_t tos2))