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

i face same issue many times and finally i found the solution .. exact solution anyway i was using Tomcat 8.0.9 locally for testing and when upload the war file to server i got the error message with unzipping the war .. so i checked the server Tomcat and it was 6 so i installed that version and checked the version of Java on the server and found it 5 so i also make sure that i use version 5 on my local machine. the issue happen with how the war file packing so if you use same version and tomcat it will packed in correct way that server can understand ... another solution .. update the server version to match the one you use locally. they should be the same. hope this will solve your issue.