--- a/src/jdk/nashorn/internal/ir/LabelNode.java	Thu Feb 14 13:51:54 2013 +0100
+++ b/src/jdk/nashorn/internal/ir/LabelNode.java	Thu Feb 14 14:07:53 2013 +0100
@@ -125,6 +125,7 @@
      * @param breakNode the break node
      */
     public void setBreakNode(final Node breakNode) {
+        assert breakNode instanceof BreakableNode || breakNode instanceof Block : "Invalid break node: " + breakNode;
         this.breakNode = breakNode;
     }
 
@@ -141,6 +142,7 @@
      * @param continueNode the continue node
      */
     public void setContinueNode(final Node continueNode) {
+        assert continueNode instanceof WhileNode : "invalid continue node: " + continueNode;
         this.continueNode = continueNode;
     }
 

--- a/src/jdk/nashorn/internal/parser/Parser.java	Thu Feb 14 13:51:54 2013 +0100
+++ b/src/jdk/nashorn/internal/parser/Parser.java	Thu Feb 14 14:07:53 2013 +0100
@@ -498,10 +498,11 @@
      */
     private void pushControlNode(final Node node) {
         final boolean isLoop = node instanceof WhileNode;
+        final boolean isBreakable = node instanceof BreakableNode || node instanceof Block;
         function.getControlStack().push(node);
 
         for (final LabelNode labelNode : function.getLabelStack()) {
-            if (labelNode.getBreakNode() == null) {
+            if (isBreakable && labelNode.getBreakNode() == null) {
                 labelNode.setBreakNode(node);
             }
 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/script/basic/JDK-8008198.js	Thu Feb 14 14:07:53 2013 +0100
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * JDK-8008198 : java.lang.AssertionError: Invalid break target class jdk.nashorn.internal.ir.TryNode
+ *
+ * @test
+ * @run
+ */
+
+a: try {
+    print("try");
+    break a;
+    print("wrong");
+} catch (e) {
+    print("error");
+} finally {
+    print("finally");
+}
+print("done");
+
+a: b: if (true) {
+   c: d: with({}) {
+      print("with");
+      break c;
+      print("wrong");
+   }
+   print("if");
+   break a;
+   print("wrong");
+}
+print("done");
+
+
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/script/basic/JDK-8008198.js.EXPECTED	Thu Feb 14 14:07:53 2013 +0100
@@ -0,0 +1,6 @@
+try
+finally
+done
+with
+if
+done