o Tweaked error reporting

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-3/trunk@833724 13f79535-47bb-0310-9956-ffa450edef68

maven-core/src/main/java/org/apache/maven/DefaultMaven.java

@@ -109,6 +109,12 @@ public class DefaultMaven
         {
             result = processResult( new DefaultMavenExecutionResult(), e );
         }
+        catch ( RuntimeException e )
+        {
+            result =
+                processResult( new DefaultMavenExecutionResult(),
+                               new InternalErrorException( "Internal error: " + e, e ) );
+        }
 
         return result;
     }

maven-core/src/main/java/org/apache/maven/InternalErrorException.java

@@ -0,0 +1,36 @@
+package org.apache.maven;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/**
+ * Signals an internal error in Maven itself, e.g. a programming bug.
+ * 
+ * @author Benjamin Bentmann
+ */
+public class InternalErrorException
+    extends MavenExecutionException
+{
+
+    public InternalErrorException( String message, Throwable cause )
+    {
+        super( message, cause );
+    }
+
+}