diff --git a/maven-core/src/main/java/org/apache/maven/lifecycle/InvalidTaskException.java b/maven-core/src/main/java/org/apache/maven/lifecycle/InvalidTaskException.java
deleted file mode 100644
index 5f832a4d6d..0000000000
--- a/maven-core/src/main/java/org/apache/maven/lifecycle/InvalidTaskException.java
+++ /dev/null
@@ -1,32 +0,0 @@
-package org.apache.maven.lifecycle;
-
-import org.apache.maven.BuildFailureException;
-
-/**
- * Exception which occurs when a task or goal is specified on the command line
- * but cannot be resolved for execution. This validation is done up front, and
- * this exception wraps the {@link TaskValidationResult} generated as a result
- * of verifying the task.
- *
- * @author jdcasey
- *
- */
-public class InvalidTaskException
-    extends BuildFailureException
-{
-
-    private final String task;
-
-    public InvalidTaskException( TaskValidationResult result,
-                                 Throwable cause )
-    {
-        super( result.getMessage(), cause );
-        task = result.getInvalidTask();
-    }
-
-    public String getTask()
-    {
-        return task;
-    }
-
-}
diff --git a/maven-core/src/main/java/org/apache/maven/lifecycle/TaskValidationResult.java b/maven-core/src/main/java/org/apache/maven/lifecycle/TaskValidationResult.java
deleted file mode 100644
index 2b181741d3..0000000000
--- a/maven-core/src/main/java/org/apache/maven/lifecycle/TaskValidationResult.java
+++ /dev/null
@@ -1,72 +0,0 @@
-package org.apache.maven.lifecycle;
-
-import org.apache.maven.plugin.InvalidPluginException;
-import org.apache.maven.plugin.PluginLoaderException;
-
-/** @author Jason van Zyl */
-public class TaskValidationResult
-{
-    private String invalidTask;
-
-    private String message;
-
-    private Throwable cause;
-
-    public TaskValidationResult()
-    {
-    }
-
-    public TaskValidationResult( String invalidTask,
-                                 String message,
-                                 PluginLoaderException cause )
-    {
-        this.invalidTask = invalidTask;
-        this.message = message;
-        this.cause = cause;
-    }
-
-    public TaskValidationResult( String invalidTask,
-                                 String message,
-                                 LifecycleExecutionException cause )
-    {
-        this.invalidTask = invalidTask;
-        this.message = message;
-        this.cause = cause;
-    }
-
-    public TaskValidationResult( String task,
-                                 String message,
-                                 InvalidPluginException e )
-    {
-        invalidTask = task;
-        this.message = message;
-        cause = e;
-    }
-
-    public String getInvalidTask()
-    {
-        return invalidTask;
-    }
-
-    public String getMessage()
-    {
-        return message;
-    }
-
-    public Throwable getCause()
-    {
-        return cause;
-    }
-
-    public boolean isTaskValid()
-    {
-        return invalidTask == null;
-    }
-
-    public InvalidTaskException generateInvalidTaskException()
-    {
-        InvalidTaskException e = new InvalidTaskException( this, cause );
-
-        return e;
-    }
-}