On 16/10/2014 12:33 AM, Dmitry Samersoff wrote:
David,

Sorry, copied wrong function!

I mean this call

weakRef = JNI_FUNC_PTR(env,NewWeakGlobalRef)(env, ref);

that can post  OutOfMemoryError

Okay, so shouldn't that be where the exception is cleared:

   /* Create weak reference to make sure we have a reference */
    weakRef = JNI_FUNC_PTR(env,NewWeakGlobalRef)(env, ref);
    if (weakRef == NULL) {
+       // < clear exception here >
        jvmtiDeallocate(node);
        return NULL;
    }

Thanks,
David
-----

commonRef_refToID() ->

createNode(JNIEnv *env, jobject ref) ->

weakRef = JNI_FUNC_PTR(env,NewWeakGlobalRef)(env, ref);

-Dmitry

On 2014-10-15 16:21, David Holmes wrote:
On 15/10/2014 8:39 PM, Dmitry Samersoff wrote:
On 2014-10-15 14:27, David Holmes wrote:
On 15/10/2014 8:08 PM, Dmitry Samersoff wrote:
Please review the fix:

http://cr.openjdk.java.net/~dsamersoff/JDK-8030708/webrev.01/

Added missed exception checks.

src/jdk.jdwp.agent/share/native/libjdwp/outStream.c

What is potentially posting the exception?

JvmtiEnv::GetTag(jobject object, jlong* tag_ptr) called from
commonRef_refToID()

You mean this call:

    error = JVMTI_FUNC_PTR(gdata->jvmti,GetTag)(gdata->jvmti, ref, &tag);

x

in findNodeByRef which is called by commonRef_refToID?  JVM TI doesn't
post exceptions.

"JVM TI functions never throw exceptions; error conditions are
communicated via the function return value. Any existing exception state
is preserved across a call to a JVM TI function."

http://docs.oracle.com/javase/8/docs/platform/jvmti/jvmti.html

David

-Dmitry




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