My Oracle Support Banner

com.sun.tools.attach.AttachNotSupportedException: Unable to Attach to 32-bit Process (Doc ID 1537869.1)

Last updated on MARCH 11, 2020

Applies to:

Oracle WebLogic Server - Version 10.3 to 12.1.1.0
Information in this document applies to any platform.

Symptoms

While trying to deploy war file from the weblogic admin console, Deployment fails with: Caused By: com.sun.tools.attach.AttachNotSupportedException: Unable to attach to 32-bit process running under WOW64

weblogic.application.ModuleException: Cannot initailize ClassRedefinerFactory
at weblogic.servlet.internal.WebAppModule.loadFastSwapClassloader(WebAppModule.java:1786)
at weblogic.servlet.internal.WebAppModule.prepare(WebAppModule.java:375)
at weblogic.application.internal.flow.ScopedModuleDriver.prepare(ScopedModuleDriver.java:176)
at weblogic.application.internal.flow.ModuleListenerInvoker.prepare(ModuleListenerInvoker.java:199)
at weblogic.application.internal.flow.DeploymentCallbackFlow$1.next(DeploymentCallbackFlow.java:517)
...
...
Caused By: com.sun.tools.attach.AttachNotSupportedException: Unable to attach to 32-bit process running under WOW64
at sun.tools.attach.WindowsVirtualMachine.openProcess(Native Method)
at sun.tools.attach.WindowsVirtualMachine.(WindowsVirtualMachine.java:38)
at sun.tools.attach.WindowsAttachProvider.attachVirtualMachine(WindowsAttachProvider.java:52)
at com.sun.tools.attach.spi.AttachProvider.attachVirtualMachine(AttachProvider.java:175)
...
...

Cause

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

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


In this Document
Symptoms
Changes
Cause
Solution
References


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