--- a/src/jdk.compiler/share/classes/com/sun/tools/javac/code/TypeAnnotationPosition.java	Wed Jan 10 15:05:33 2018 -0800
+++ b/src/jdk.compiler/share/classes/com/sun/tools/javac/code/TypeAnnotationPosition.java	Wed Jan 10 22:52:08 2018 -0500
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2018, 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
@@ -312,6 +312,7 @@
         Assert.check(!hasExceptionIndex(), "exception_index already set");
         Assert.check(exception_index >= 0, "Expected a valid index into exception table");
         this.exception_index = exception_index;
+        this.isValidOffset = true;
     }
 
     public boolean hasCatchType() {