Right now, when I try to persist an object in Google App Engine, I’m facing the error “Java.lang.VerifyError: Expecting a stackmap frame at branch target“. I’m using JDK 7 and it seems like the problem lies with this JDK.
After googling a bit, I found that there seems to be two solutions to fix this problem.
Solution 1: Change to JDK 6
As simple as is, change your JDK to version 6 and you won’t be bugged by this exception anymore. Well, in my case, I have to use JDK 7. So, moving on to the solution 2.
Solution 2: Configure JVM
Go to Windows -> Preferences -> Installed JREs. Select the default JVM and click edit. Then add this parameter as VM argument “-XX:-UseSplitVerifier” as seen below.
This should solve the issue.