o Partly reverted r746431 to restore backward-compat with plugins like Surefire that access this field directly for manual container lookups

git-svn-id: https://svn.apache.org/repos/asf/maven/components/trunk@746819 13f79535-47bb-0310-9956-ffa450edef68

maven-toolchain/src/main/java/org/apache/maven/toolchain/ToolchainManager.java

@@ -28,9 +28,13 @@
  */
 public interface ToolchainManager
 {
+
+    // NOTE: Some plugins like Surefire access this field directly!
+    String ROLE = ToolchainManager.class.getName();
+
     /**
      * to be used from plugins capable of working with toolchains.
      */
     Toolchain getToolchainFromBuildContext( String type,
                                             MavenSession context );
-}
+}