java.lang.verifyerror in android

I have one android project.I have one class file of about 6000 lines when i tried to add more code it shows the java.lang.verifyerro开发者_如何学Gor

please help me out

I have used about 500 lines of switch case with atleast 25 case in it ,i put all the cases in if else condition and My problem solved

I had this issue and I fixed it by changing the file extension of the jar file from .JAR to .jar