LogTaskListener needs to be remoteable, and clarified the remotable semantics of TaskListener.

See http://n4.nabble.com/Hudson-dev-f387835.html

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@29210 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/model/TaskListener.java

@@ -50,6 +50,7 @@ import java.util.Formatter;
  *
  * <p>
  * {@link StreamTaskListener} is the most typical implementation of this interface.
+ * All the {@link TaskListener} implementations passed to plugins from Hudson core are remotable.
  *
  * @author Kohsuke Kawaguchi
  */

core/src/main/java/hudson/util/LogTaskListener.java

@@ -31,6 +31,7 @@ import java.io.IOException;
 import java.io.OutputStream;
 import java.io.PrintStream;
 import java.io.PrintWriter;
+import java.io.Serializable;
 import java.util.logging.Level;
 import java.util.logging.LogRecord;
 import java.util.logging.Logger;
@@ -38,7 +39,7 @@ import java.util.logging.Logger;
 /**
  * {@link TaskListener} which sends messages to a {@link Logger}.
  */
-public class LogTaskListener implements TaskListener {
+public class LogTaskListener implements TaskListener, Serializable {
     
     private final TaskListener delegate;
 
@@ -114,4 +115,5 @@ public class LogTaskListener implements TaskListener {
 
     }
 
+    private static final long serialVersionUID = 1L;
 }