--- a/nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/codegen/CodeGenerator.java	Wed Dec 03 16:31:15 2014 +0100
+++ b/nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/codegen/CodeGenerator.java	Wed Dec 03 16:31:39 2014 +0100
@@ -3080,6 +3080,7 @@
             if (isConditionalCatch) {
                 loadExpressionAsBoolean(exceptionCondition);
                 nextCatch = new Label("next_catch");
+                nextCatch.markAsBreakTarget();
                 method.ifeq(nextCatch);
             } else {
                 nextCatch = null;
@@ -3092,7 +3093,7 @@
                 method._goto(afterCatch);
             }
             if(nextCatch != null) {
-                method.label(nextCatch);
+                method.breakLabel(nextCatch, lc.getUsedSlotCount());
             }
         }
 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/test/script/basic/JDK-8066232.js	Wed Dec 03 16:31:39 2014 +0100
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2014 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-8066232: problem with conditional catch compilation
+ *
+ * @test
+ * @run
+ */
+
+(function () { 
+    try {
+        x;
+    } catch(e if 1) {
+    }
+})()

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/test/script/basic/JDK-8066232.js.EXPECTED	Wed Dec 03 16:31:39 2014 +0100
@@ -0,0 +1,1 @@
+SUCCESS