FULL PRODUCT VERSION :
java version "1.7.0"
Java(TM) SE Runtime Environment (build 1.7.0-b147)
Java HotSpot(TM) Client VM (build 21.0-b17, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
http://java.sun.com/webapps/bugreport

A DESCRIPTION OF THE PROBLEM :
java.lang.ClassCastException: com.sun.tools.javac.api.ClientCodeWrapper$WrappedJ
avaFileManager cannot be cast to com.sun.tools.javac.file.JavacFileManager
        at com.sun.tools.javac.main.Main.compile(Main.java:411)
        at com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:132)
        at com.sun.tools.javah.JavahTask.run(JavahTask.java:513)
        at com.sun.tools.javah.JavahTask.run(JavahTask.java:335)
        at com.sun.tools.javah.Main.main(Main.java:46)

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package searchusingjni;

/**
 *
 * @author Mars
 */
public class search {
    
    native boolean search(String szPath);
    
}

-- Save the file and use java-h jni search.java

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Expectation: I received my JNI header file so I can continue with my project
ACTUAL -
javah -jni search.java
An exception has occurred in the compiler (1.7.0). Please file a bug at the Java
 Developer Connection (http://java.sun.com/webapps/bugreport) after checking th
e Bug Parade for duplicates. Include your program and the following diagnostic i
n your report. Thank you.
java.lang.ClassCastException: com.sun.tools.javac.api.ClientCodeWrapper$WrappedJ
avaFileManager cannot be cast to com.sun.tools.javac.file.JavacFileManager
        at com.sun.tools.javac.main.Main.compile(Main.java:411)
        at com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:132)
        at com.sun.tools.javah.JavahTask.run(JavahTask.java:513)
        at com.sun.tools.javah.JavahTask.run(JavahTask.java:335)
        at com.sun.tools.javah.Main.main(Main.java:46)

REPRODUCIBILITY :
This bug can be reproduced always.