Re: <unknown>

[Per Bothner <per@bothner.com>]

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Try the attached patch to see if you get a more helpful error message.

-- 
	--Per Bothner
per@bothner.com   http://per.bothner.com/

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diff --git a/gnu/expr/ClassExp.java b/gnu/expr/ClassExp.java
index b8ce460b2..40b45f816 100644
--- a/gnu/expr/ClassExp.java
+++ b/gnu/expr/ClassExp.java
@@ -643,10 +643,11 @@ public class ClassExp extends LambdaExp
                             generateBridgeMethod(comp, impl, ptypes, rtype);
                         } else {
                             // FIXME - need better error message!
-                            String msg = vec.size() == 0
-                                ? "missing implementation for "
-                                : "ambiguous implementation for ";
-                            comp.error('e', msg+meth);
+                            String msg = "non-abstract class "+getName();
+                            msg += vec.size() == 0
+                                ? " is missing implementation for "
+                                : " has ambiguous implementation for ";
+                            comp.error('e', msg+meth, this);
                         }
                     } else {
                         Method impl