Awful error with CDI and hot deployment "Absent Code attribute in method that is not native or abstract in class file <error>"

[cayhorstmann]

am trying to put together a lab for a summer class where I foolishly
agreed to use NetBeans 6.9, Glassfish 3.0.1 and CDI. I am getting the
following error:
java.lang.ClassFormatError: Absent Code attribute in method that is
not native or abstract in class file com/horstmann/qq/beans/<error>
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at org.glassfish.web.loader.WebappClassLoader.findClass(WebappClassLoader.java:920)
at org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1430)
at org.glassfish.weld.BeanDeploymentArchiveImpl.populate(BeanDeploymentArchiveImpl.java:192)
at org.glassfish.weld.BeanDeploymentArchiveImpl.<init>(BeanDeploymentArchiveImpl.java:102)
at org.glassfish.weld.DeploymentImpl.<init>(DeploymentImpl.java:118)
at org.glassfish.weld.WeldDeployer.load(WeldDeployer.java:315)
at org.glassfish.weld.WeldDeployer.load(WeldDeployer.java:99)
at org.glassfish.internal.data.ModuleInfo.load(ModuleInfo.java:175)
at org.glassfish.internal.data.ApplicationInfo.load(ApplicationInfo.java:216)
...

It effectively kills the app server. Deploying anything else doesn't even show any messages in the log.

This is with hot deployment inside NetBeans. When I deploy the WAR
manually, the problem doesn't arise. Unfortunately, that's not an
option for my lab.

I looked into the build/web/WEB-INF/classes directories, and sure enough, there was a file <error>.class.

I tried wiping the file and redeploying, and it came back. Who makes this? Is there anything I can do to troubleshoot it?

Thanks,

Cay

[Ludo]

On 6/22/10 4:38 PM, cayhorstmann wrote:

[cayhorstmann]

No, I am not using Maven. I pointed NetBeans to a directory with src and web subdirectories and it generated the usual Ant script.

For some reason, NetBeans sometimes makes a file <error>.class.

[sivakumart]

Do you have a set of steps to reproduce the issue? From your description it appears to happen only during hot-deployment from within NetBeans? Could you confirm this? Would you be able to file a NetBeans issue around this so that we can track this [you could copy me (sivakumar_t)]?

Thanks
--Siva.

[cayhorstmann]

I'll try to reproduce it, but it seems a bit elusive. If I succeed, I'll file a bug report.

I am still curious who produces a file named <error>.class. That really should never happen. And I also wonder why the file never got deleted. It was quite a bit older than the other class files in the hot deploy directory.