java.lang.IllegalArgumentException: Invalid or unreadable WAR file : error in opening zip file

Question

I got this error in Catalina.2011-03-30.log when my display.war file executed on Tomcat. The error is shown below:

Mar 30, 2011 8:01:31 PM org.apac         


        

Answer 1

BalusC is right. I encountered this error when I ran my webapp on a Linux box that had the openjdk version of Java installed instead of a regular JDK. After installing a normal JDK and pointing tomcat's JRE_HOME variable to the normal JDK the problem disappeared.