diff --git a/cnd.antlr/src/org/netbeans/modules/cnd/antlr/TokenBuffer.java b/cnd.antlr/src/org/netbeans/modules/cnd/antlr/TokenBuffer.java
--- a/cnd.antlr/src/org/netbeans/modules/cnd/antlr/TokenBuffer.java
+++ b/cnd.antlr/src/org/netbeans/modules/cnd/antlr/TokenBuffer.java
@@ -69,6 +69,8 @@
         }
         catch (TokenStreamException tse) {
                 System.err.println("tmp error: can't load tokens: "+tse);
+        } catch (Throwable ex) {
+                System.err.println(ex.getClass().getName() + ":" + ex.getMessage() + ":" + ex + ":" + ex.getCause()  + ":" + (ex.getStackTrace() == null ? "null stack" : "" + ex.getStackTrace().length) + " in onID "); // NOI18N
         }
         size = pos;
     }