Index: CHANGES.txt
===================================================================
--- CHANGES.txt	(revision 663647)
+++ CHANGES.txt	(working copy)
@@ -117,6 +117,8 @@
 11. LUCENE-1189: Fixed the QueryParser to handle escaped characters within 
     quoted terms correctly. (Tomer Gabel via Michael Busch)
 
+12. LUCENE-1299: Fixed NPE in SpellChecker when IndexReader is not null and field is (Grant Ingersoll)
+
 New features
 
  1. LUCENE-1137: Added Token.set/getFlags() accessors for passing more information about a Token through the analysis
Index: contrib/spellchecker/src/test/org/apache/lucene/search/spell/TestSpellChecker.java
===================================================================
--- contrib/spellchecker/src/test/org/apache/lucene/search/spell/TestSpellChecker.java	(revision 663647)
+++ contrib/spellchecker/src/test/org/apache/lucene/search/spell/TestSpellChecker.java	(working copy)
@@ -109,6 +109,14 @@
 
     similar = spellChecker.suggestSimilar("tousand", 10, r, "field2", false);
     assertEquals(1, similar.length); // there is the term thousand in the field field2
+
+    try {
+      similar = spellChecker.suggestSimilar("tousand", 10, r, null, false);
+    } catch (NullPointerException e) {
+      assertTrue("threw an NPE, and it shouldn't have", false);
+    }
+
+
   }
 
   private void addwords(IndexReader r, String field) throws IOException {
Index: contrib/spellchecker/src/java/org/apache/lucene/search/spell/SpellChecker.java
===================================================================
--- contrib/spellchecker/src/java/org/apache/lucene/search/spell/SpellChecker.java	(revision 663647)
+++ contrib/spellchecker/src/java/org/apache/lucene/search/spell/SpellChecker.java	(working copy)
@@ -224,7 +224,7 @@
         continue;
       }
 
-      if (ir != null) { // use the user index
+      if (ir != null && field != null) { // use the user index
         sugWord.freq = ir.docFreq(new Term(field, sugWord.string)); // freq in the index
         // don't suggest a word that is not present in the field
         if ((morePopular && goalFreq > sugWord.freq) || sugWord.freq < 1) {