Sign a jar file in JDK 6.0_U32

Hello,
I am trying to sign a jar file in JDK 6 update 32 and i am getting below error:

Exception in thread "main" java.lang.NoClassDefFoundError: sun/security/tools/Ja
rSigner
Caused by: java.lang.ClassNotFoundException: sun.security.tools.JarSigner
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: sun.security.tools.JarSigner. Program will exit.

I could not figure out which jar file to include in the classpath. Can someone suggest the correct way of doing it?

Regards,
Suresh

It depends on what you are trying to do but a simple way of signing a jar using a key store is

Code:

---

jarsigner -keystore myKeystore MyJar.jar myAlias

---

Yes, i am doing as you said. But why i am getting class not found exception? Which jar in should include in my classpath? I tried to look for sun/security/tools/JarSigner class under every jar i can think of within JDK but don't find it anywhere.

Regards,
Suresh

Quote:

---

$ unzip -l tools.jar | grep -i "jarsigner.class"
31124 09/10/09 01:47 sun/security/tools/JarSigner.class

---

Try tools.jar in $JAVA_HOME/lib using JDK_1_5_22. I'm not sure using Java 6.

Regards,
Albert.

Quote:

---

Originally Posted by AlbertGM

Try tools.jar in $JAVA_HOME/lib using JDK_1_5_22. I'm not sure using Java 6.

---

Yep, it's in the same place in Java 6.