Considerations for setting Synch to OS Thread Allowed using WebSphere
Studio Application Developer
With the Synch to OS Thread Allowed support:
- The application developer or assembler requests behavior by setting the
special application environment entry env-entry in the deployment
descriptor: com.ibm.websphere.security.SyncToOSThread = true | false.
- The system administrator grants the request made by the application developer
or assembler using an application server configuration setting.
This article discusses the first of the two tasks above.
You can set the Synch to OS Thread Allowed option at development time or
at assembly time:
- At development time, use WebSphere Studio Application Developer (WSAD)
to add an environment entry (environment variable) to the Enterprise JavaBean
(EJB) component or Web application module.
Important: Environment
entries (environment variables) can be defined on individual EJB components
but cannot be set on individual Web components. A J2EE standard deployment
descriptor can be defined for each EJB component and for each Web application
module. Note that a Web component is either a servlet or JSP. For Web components,
environment entries (environment variables) can only be set on a Web application
module. A Web application module contains servlets and JavaServer Pages (JSP).
- At assembly time, you can add or change environment entries (environment
variables) using the WebSphere application assembly tool .

WebSphere Application Server for z/OS global security options
Searchable topic ID:
cseczoswsadsync
Last updated: Jun 21, 2007 9:56:50 PM CDT
WebSphere Application Server for z/OS, Version 5.0.2
http://publib.boulder.ibm.com/infocenter/wasinfo/index.jsp?topic=/com.ibm.websphere.zseries.doc/info/zseries/ae/csec_zoswsadsync.html