# HG changeset patch
# User Doug Simon <doug.simon@oracle.com>
# Date 1422659974 -3600
# Node ID c198e397bb594db2edd6673aeb1e982241a7ead1
# Parent  b300d1f6e8175ae3f7192b981584fdff973f2847
improved error message when Service loading fails

diff -r b300d1f6e817 -r c198e397bb59 graal/com.oracle.graal.api.runtime/src/com/oracle/graal/api/runtime/Services.java
--- a/graal/com.oracle.graal.api.runtime/src/com/oracle/graal/api/runtime/Services.java	Fri Jan 30 20:52:39 2015 +0100
+++ b/graal/com.oracle.graal.api.runtime/src/com/oracle/graal/api/runtime/Services.java	Sat Jan 31 00:19:34 2015 +0100
@@ -38,7 +38,9 @@
         protected List<Service> computeValue(Class<?> type) {
             Service[] names = getServiceImpls(type);
             if (names == null || names.length == 0) {
-                throw new InternalError(format("No implementations for %s found (ensure %s extends %s)", type.getSimpleName(), type.getSimpleName(), Service.class));
+                throw new InternalError(
+                                format("No implementations for %s found (ensure %s extends %s and that in suite.py the \"annotationProcessors\" attribute for the project enclosing %s includes \"com.oracle.graal.service.processor\")",
+                                                type.getSimpleName(), type.getSimpleName(), Service.class, type.getSimpleName()));
             }
             return Arrays.asList(names);
         }