java.lang.SecurityException – igner information does not match signer information of other classes in the same package
If you encounter this exception
Caused by: java.lang.SecurityException: class “com.sun.faces.util.FacesLogger”’s signer information does not match signer information of other classes in the same package
at java.lang.ClassLoader.checkCerts(ClassLoader.java:775
then it caused by by 2 jars in your lib path with different versions. For eg for above exception , there were two versions of jsf jars in our lib folder.
Will this issue arise even if the jars loaded in 2 different class loaders in the same JVM? I have a requirement where i need to make use of different version of the jars.
Subbu, what do you mean by 2 different class loaders in same jvm ?
When server starts , there is a hierarchy in which jars/class files are loaded.
If you keep jars at 2 different locations, that would still cause the same problem
We have a scenario where 2 applications are deployed on a single application server and the applications are use different versions of the same jar and run in the same JVM but their class loaders are different..Did i make sense?
@Subbu Yes you made sense. I do not see this as problem because the lib’s for each application is inside the respective WEB-INF/lib. We have multiple applications in tomcat but jars do not conflict