jarsigner错误:. lang。运行时异常:keystore load: keystore被篡改，或者密码不正确

I am trying to sign a .wgt file(widget which is a jar file) using jarsigner of Java 6. But when I try to sign, it gives me the following error, after asking to enter the passphrase for keystore.I am trying to sign a .wgt file(widget which is