My Oracle Support Banner

Using Applet Inside Application with ADF or Simple JEE Security Fails with java.lang.ClassFormatError: Incompatible magic value (Doc ID 1072232.1)

Last updated on JULY 26, 2017

Applies to:

Oracle JDeveloper - Version and later
Information in this document applies to any platform.


When trying to access an Applet from inside an application developed with JEE or ADF security enabled, the loading of the applet fails in the browser with an error like:

java.lang.ClassFormatError: Incompatible magic value 1013802356 in class file AppLauncherApplet



To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.