Native Memory Leak

[Jacob Schlather]

I hope this is the right mailing list. I've been tracking down a memory
leak that seems to be related to
https://bugs.java.com/view_bug.do?bug_id=8162795. Running on Java 1.8.0_144
with native memory tracking enabled, we've been seeing the internal memory
size grow until the kernel kills the JVM for using too much memory. Using
the native memory detail diff tool I've been able to find the following
items that seem to be growing, one being a MemberNameTable

[0x00007efffa8d29fd] GenericGrowableArray::raw_allocate(int)+0x17d
[0x00007efffab86456] MemberNameTable::add_member_name(_jobject*)+0x66
[0x00007efffa8ffb24] InstanceKlass::add_member_name(Handle)+0x84
[0x00007efffab8777d] MethodHandles::init_method_MemberName(Handle,
CallInfo&)+0x28d
                             (malloc=106502KB +106081KB #19)

 and another being some JNI allocations

[0x00007efffa9ce58a] JNIHandleBlock::allocate_block(Thread*)+0xaa
[0x00007efffad36830] JavaThread::run()+0xb0
[0x00007efffabe7338] java_start(Thread*)+0x108
                             (malloc=23903KB +23697KB #78452 +77776)

[0x00007efffa9ce58a] JNIHandleBlock::allocate_block(Thread*)+0xaa
[0x00007efffa94f7fb] JavaCallWrapper::JavaCallWrapper(methodHandle, Handle,
JavaValue*, Thread*)+0x6b
[0x00007efffa9506c4] JavaCalls::call_helper(JavaValue*, methodHandle*,
JavaCallArguments*, Thread*)+0x884
[0x00007efffa904001] InstanceKlass::register_finalizer(instanceOopDesc*,
Thread*)+0xf1
                             (malloc=19770KB +19727KB #64887 +64745)

[0x00007efffa9ce58a] JNIHandleBlock::allocate_block(Thread*)+0xaa
[0x00007efffa94f7fb] JavaCallWrapper::JavaCallWrapper(methodHandle, Handle,
JavaValue*, Thread*)+0x6b
[0x00007efffa9506c4] JavaCalls::call_helper(JavaValue*, methodHandle*,
JavaCallArguments*, Thread*)+0x884
[0x00007efffa9513a1] JavaCalls::call_virtual(JavaValue*, KlassHandle,
Symbol*, Symbol*, JavaCallArguments*, Thread*)+0x321
                             (malloc=29794KB +29563KB #97786 +97028)

Having found these I could use some guidance on what to look at next and
what sorts of calls could potentially be causing these issues. We don't
have any explicit uses of JNI that I can tell in our code bases. Let me
know if there's anymore information that would be helpful.