I am trying to use the current stable release for mac osx with the current version of jdk which i think is 7. I have mountain lion on my computer mac right now. I downloaded both jdk 7 and the most recent stable version of drjava. when i go to open it up i get a message saying that drjava has been damaged and can't open. It tells me to move it to the trash. I have been searching for a while now an haven't found anything on it. When i look up the problem in the help guide for my mac it says that the code has been changed and is different than the original code that was signed to it. How do i fix this.