Invalid keystore format from tomcat

Question

I'm using tomcat5.5.17 and java1.6. I tried to setup ssl. After generating the key/cert using keytool and modified server.xml. I got the following error when I restart tomcat.

Apr 6, 2010 5:35:34 PM org.apache.coyote.http11.Http11BaseProtocol start SEVERE: Error starting endpoint java.io.IOException: Invalid keystore format at sun.security.provider.JavaKeyStore.engineLoad(JavaKeyStore.java:650) at sun.security.provider.JavaKeyStore$JKS.engineLoad(JavaKeyStore.java:55) at java.security.KeyStore.load(KeyStore.java:1201) at org.apache.tomcat.util.net.jsse.JSSESocketFactory.getStore(JSSESocketFactory.java:282)

I followed the instruction here. http://tomcat.apache.org/tomcat-5.5-doc/ssl-howto.html