java - Signer information does not match

Question

I'm receiving the following error on log file.

(java.lang.SecurityException: class "com.adventnet.snmp.snmp2.SecurityModelTable"'s signer information does not match signer information of other classes in the same package thrown

The thing is when I run the below command, it says the jar is verified.

/usr/jdk/instances/jdk1.5.0/bin/jarsigner -verify -verbose Jarfile.jar

If the jar file is verified then how can this problem occur?

Answer 1

It means that you have two or more classes in the same package with different signature data. Usually that means the classes come from different JARs, one of which is signed and the other is unsigned.