--- old/jdk/src/share/native/com/sun/java/util/jar/pack/bands.cpp	2013-02-07 17:07:30.000000000 +0100
+++ new/jdk/src/share/native/com/sun/java/util/jar/pack/bands.cpp	2013-02-07 17:07:29.000000000 +0100
@@ -187,6 +187,10 @@
 
 entry* band::getRefCommon(cpindex* ix_, bool nullOKwithCaller) {
   CHECK_0;
+  if (ix_ == NULL) {
+      abort("no index");
+      return NULL;
+  }
   assert(ix_->ixTag == ixTag
          || (ixTag == CONSTANT_Literal
              && ix_->ixTag >= CONSTANT_Integer