Installation Failed: Error 907 Invalid JAR Error: Control flow verification information too large: commandAction

This error occurs at the time of installing a mobile application on a device if any method in your application is very big and lengthy. From the error, it is self explanatory. To sort out this error, you have to go on reducing the method. For this you can remove the repetitive statements from the method and place them in a separate method, and then calling that method into the bigger one.

Such kind of error generally come for the methods like commandAction(), itemStateChanged() etc.