java.lang.VerifyError：堆栈形状不一致

Question

The following code was working fine on java 1.6 and maven 2.2.1 :

public class GTMEnrollmentOutputRecord extends com.ibm.ivj.eab.record.cobol.CobolRecord implements java.io.Serializable
{
   public GTMEnrollmentOutputRecord() throws RecordException
   {
      try {
         //Getting error at the below line
         GTMEnrollmentOutputRecordType dynRecType = new GTMEnrollmentOutputRecordType();

After upgrading to Java 1.7 and Maven 3.3.3 for IBM Webspehere 8.5.5.3 I am getting the following error:

java.lang.VerifyError: JVMVRFY012 stack shape inconsistent

Answer 1

Java 7 changed the format of the stack frame and introduced format checks in JSR 202: Java Class File Specification Update . The most likely cause of this error is a 3rd party library that generates bytecode in older, Java 6 format eg ASM or CGLIB .

You need to inspect your project dependencies and ensure that all of them are supporting Java 7.