--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/sjavac/client/SjavacClient.java	Sat Oct 04 10:13:11 2014 -0700
+++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/sjavac/client/SjavacClient.java	Tue Oct 07 21:15:10 2014 +0200
@@ -172,7 +172,7 @@
         } catch (IOException | ClassNotFoundException ex) {
             Log.error("Exception caught: " + ex);
             result = new CompilationResult(CompilationResult.ERROR_FATAL);
-            result.stderr = ex.getMessage();
+            result.stderr = Util.getStackTrace(ex);
         }
         return result;
     }