问题
I am trying to deploy me application to Tomcat 5.5 on Debian Lenny. I am getting the following exception:
java.security.AccessControlException: access denied (java.io.FilePermission /usr/share/java/jsp-api-2.0.jar read)
I'm not sure what to do.
Solution
Add the following line to /etc/tomcat5.5/policy.d/04webapps.policy:
grant codeBase "file:/var/lib/tomcat5.5/webapps/mywebapp/-" { permission java.security.AllPermission; };
回答1:
I smells like an SecurityManager.
It is a message from the Java Security-Manager not from the filesystem. A class within this jar-archive tries to access a file, which is not allowed by the policy.
Take a look at this really similar problem: http://www.mkyong.com/tomcat/tomcat-javasecurityaccesscontrolexception-access-denied-loggingproperties-read/
The Solution ist to allow reading of files in the catalina.policy
回答2:
try executing as root chmod +r /usr/share/java/jsp-api-2.0.jar
来源：https://stackoverflow.com/questions/4689123/java-security-accesscontrolexception-access-denied-java-io-filepermission-usr