src/hotspot/share/prims/jvmtiTagMap.cpp

rev 47287 : Port 09.17.Thread_SMR_logging_update from JDK9 to JDK10
rev 47289 : eosterlund, stefank CR - refactor code into threadSMR.cpp and threadSMR.hpp
rev 47290 : eosterlund CR - need more inline fixes.
rev 47292 : stefank, coleenp CR - refactor most JavaThreadIterator usage to use JavaThreadIteratorWithHandle.

@@ -3175,13 +3175,11 @@
 // Collects the simple roots for all threads and collects all
 // stack roots - for each thread it walks the execution
 // stack to find all references and local JNI refs.
 inline bool VM_HeapWalkOperation::collect_stack_roots() {
   JNILocalRootsClosure blk;
-  ThreadsListHandle tlh;
-  JavaThreadIterator jti(tlh.list());
-  for (JavaThread* thread = jti.first(); thread != NULL; thread = jti.next()) {
+  for (JavaThreadIteratorWithHandle jtiwh; JavaThread *thread = jtiwh.next(); ) {
     oop threadObj = thread->threadObj();
     if (threadObj != NULL && !thread->is_exiting() && !thread->is_hidden_from_external_view()) {
       // Collect the simple root for this thread before we
       // collect its stack roots
       if (!CallbackInvoker::report_simple_root(JVMTI_HEAP_REFERENCE_THREAD,