We help IT Professionals succeed at work.
Get Started

How to troubleshoot a Java exeption error for java.lan.ClassFormatError: Unknown constant tag 0 in class file

tmflores
tmflores asked
on
3,686 Views
Last Modified: 2013-11-23
When I try starting a particular Java based program that was recently upgraded, it gives me an error which says: An exception occured in the JVM. Detail - java.lang.ClassFormatError: Unknown constant tag 0 in class file sun/awt/image/FetcherInfo. Then below it is another error that says: Failed calling Java method! Method name: main. Can someone please explain to me how to go about troubleshooting this?
JavaError.jpg
Comment
Watch Question
This problem has been solved!
Unlock 2 Answers and 8 Comments.
See Answers
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE