Spot-fix for a potentially buggier root cause (I'll blame GWT's hosted mode bytecode caching for no particular reason). In my Constants-derived interface, going from having some metadata on a method to no metadata triggers a NPE. This is a stopgap to avoid the NPE, which would otherwise occur during normal work.

Review by: scottb (postmortem)

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@1114 8db76d5a-ed1c-0410-87a9-c151d255dfc7

dev/core/src/com/google/gwt/dev/jdt/TypeOracleBuilder.java

diff --git a/dev/core/src/com/google/gwt/dev/jdt/TypeOracleBuilder.java b/dev/core/src/com/google/gwt/dev/jdt/TypeOracleBuilder.java
index 0ed9896..a01f886 100644
--- a/dev/core/src/com/google/gwt/dev/jdt/TypeOracleBuilder.java
+++ b/dev/core/src/com/google/gwt/dev/jdt/TypeOracleBuilder.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2006 Google Inc.
+ * Copyright 2007 Google Inc.
  * 
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
  * use this file except in compliance with the License. You may obtain a copy of
@@ -100,6 +100,9 @@
     int start = javadoc.sourceStart;
     int end = javadoc.sourceEnd;
     char[] comment = CharOperation.subarray(unitSource, start, end + 1);
+    if (comment == null) {
+      comment = new char[0];
+    }
     BufferedReader reader = new BufferedReader(new CharArrayReader(comment));
     String activeTag = null;
     final List tagValues = new ArrayList();