--- a/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/ui/JavaThreadsPanel.java	Tue May 10 11:50:45 2016 +0000
+++ b/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/ui/JavaThreadsPanel.java	Tue May 10 14:26:31 2016 +0000
@@ -39,6 +39,7 @@
 
 import sun.jvm.hotspot.debugger.*;
 import sun.jvm.hotspot.runtime.*;
+import sun.jvm.hotspot.types.*;
 
 import sun.jvm.hotspot.ui.action.*;
 
@@ -55,9 +56,19 @@
     private JavaThreadsTableModel dataModel;
     private StatusBar statusBar;
     private JTable     threadTable;
-    private java.util.List cachedThreads = new ArrayList();
+    private java.util.List<CachedThread> cachedThreads = new ArrayList();
+    private static AddressField crashThread;
 
 
+    static {
+        VM.registerVMInitializedObserver(
+                            (o, a) -> initialize(VM.getVM().getTypeDataBase()));
+    }
+
+    private static void initialize(TypeDataBase db) {
+        crashThread = db.lookupType("VMError").getAddressField("_thread");
+    }
+
     /** Constructor assumes the threads panel is created while the VM is
         suspended. Subsequent resume and suspend operations of the VM
         will cause the threads panel to clear and fill itself back in,
@@ -437,21 +448,14 @@
      * @return a flag which indicates if crashes were encountered.
      */
     private boolean fireShowThreadCrashes() {
-        boolean crash = false;
-        for (Iterator iter = cachedThreads.iterator(); iter.hasNext(); ) {
-            JavaThread t = (JavaThread) ((CachedThread) iter.next()).getThread();
-            sun.jvm.hotspot.runtime.Frame tmpFrame = t.getCurrentFrameGuess();
-            RegisterMap tmpMap = t.newRegisterMap(false);
-            while ((tmpFrame != null) && (!tmpFrame.isFirstFrame())) {
-                if (tmpFrame.isSignalHandlerFrameDbg()) {
-                    showThreadStackMemory(t);
-                    crash = true;
-                    break;
-                }
-                tmpFrame = tmpFrame.sender(tmpMap);
-            }
-        }
-        return crash;
+        Optional<JavaThread> crashed =
+                         cachedThreads.stream()
+                                      .map(t -> t.getThread())
+                                      .filter(t -> t.getAddress().equals(
+                                                        crashThread.getValue()))
+                                      .findAny();
+        crashed.ifPresent(this::showThreadStackMemory);
+        return crashed.isPresent();
     }
 
     private void cache() {

--- a/src/share/vm/runtime/vmStructs.cpp	Tue May 10 11:50:45 2016 +0000
+++ b/src/share/vm/runtime/vmStructs.cpp	Tue May 10 14:26:31 2016 +0000
@@ -1365,6 +1365,12 @@
      static_field(java_lang_Class,             _oop_size_offset,                              int)                                   \
      static_field(java_lang_Class,             _static_oop_field_count_offset,                int)                                   \
                                                                                                                                      \
+  /******************/                                                                                                               \
+  /* VMError fields */                                                                                                               \
+  /******************/                                                                                                               \
+                                                                                                                                     \
+     static_field(VMError,                     _thread,                                       Thread*)                               \
+                                                                                                                                     \
   /************************/                                                                                                         \
   /* Miscellaneous fields */                                                                                                         \
   /************************/                                                                                                         \
@@ -2215,6 +2221,12 @@
                                                                           \
   declare_toplevel_type(Arguments)                                        \
                                                                           \
+  /***********/                                                           \
+  /* VMError */                                                           \
+  /***********/                                                           \
+                                                                          \
+  declare_toplevel_type(VMError)                                          \
+                                                                          \
   /***************/                                                       \
   /* Other types */                                                       \
   /***************/                                                       \

--- a/src/share/vm/utilities/vmError.hpp	Tue May 10 11:50:45 2016 +0000
+++ b/src/share/vm/utilities/vmError.hpp	Tue May 10 14:26:31 2016 +0000
@@ -33,6 +33,7 @@
 class VMError : public AllStatic {
   friend class VM_ReportJavaOutOfMemory;
   friend class Decoder;
+  friend class VMStructs;
 
   static int         _id;               // Solaris/Linux signals: 0 - SIGRTMAX
                                         // Windows exceptions: 0xCxxxxxxx system errors