IBM Support

Questions about the files under /tmp/javasharedresources folder

Question & Answer


Question

We observe IBM Business Automation Workflow created below file in tmp directory:

/tmp/javasharedresources/C290M4F1A64P_webspherev85_1.8_64_bundled_ibmadmin_G43L00

What does it do? Can we delete it? What would happen if we delete it?

Answer

The /tmp/javasharedresources directory is the default location in which to store shared classes caches for any JVM running under any user account - i.e. it has to be accessible for all users. But the cache files stored in this directory are, by default, only read/writeable by their owner.

For non-persistent caches a couple of control files are placed in /tmp/javasharedresources which are world-readable, but their content is not sensitive.

If desired, the shared classes cache folder can be set to a different location with customized permissions, see cacheDir and cacheDirPerm for details.

The files under /tmp/javasharedresources/ folder would be re-generated when server restarts.

You need to following the instruction about how to clear the WebSphere class cache.

[{"Type":"MASTER","Line of Business":{"code":"LOB76","label":"Data Platform"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SS8JB4","label":"IBM Business Automation Workflow"},"ARM Category":[{"code":"a8m0z000000cx8DAAQ","label":"Other IBM Software (WAS, MQ, etc), please specify-\u003EWAS"}],"ARM Case Number":"","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"18.0.0;19.0.0;20.0.0;21.0.1;21.0.2;21.0.3;22.0.1;22.0.2;23.0.1;23.0.2;24.0.0;24.0.1;25.0.0;25.0.1"}]

Product Synonym

Business Automation Workflow;WebSphere Application Server

Document Information

Modified date:
30 November 2025

UID

ibm17253130