Java Business Service Use
Last updated on MARCH 01, 2018
Applies to:Siebel CRM - Version 8.0 SIA  and later
Information in this document applies to any platform.
*** Checked for currency MAR-21-2016 ***
Regarding use of Java Business Service :-
A JVM is created in-process with the Siebel process the first time a Java business service is invoked. Thereafter, the same JVM is used for all invocations of any Java business services.
An instance of the Java class implementing a business service is created the first time that business service is invoked. This instance is released through JNI when the native business service is destroyed. For business services that are not cached, this occurs whenever the caller (workflow, script) releases the native business service. For business services that are cached, this occurs when the session is destroyed (for example the user logs out). For a business service marked as cached in the repository, repeated invocations by a user during a single session will invoke methods on the same Java object.
What does 'in-process' mean, is the is JVM loaded in every OM thread, or only into the main thread ?
Also, if the JVM is shared across threads, is this a potential 'blocking point', with multiple concurrent Java Business Service (JBS) calls ?
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