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# jvmattachthread

Purpose
Persistently attach the current thread to the Java virtual machine
Synopsis
`procedure jvmattachthread`
Further information
1. Normally, a Mosel thread will create a corresponding Java thread the first time it calls a Java method. By calling jvmattachthread, you can force the Java thread to be created earlier.
2. If mosjvm has not yet loaded the Java Virtual Machine into the Mosel process, it will be loaded by this function. If Java cannot be found or an error occurs loading it, the model will terminate with a runtime error.
3. Prior to Xpress 8.7, calling jvmattachthread was recommended to improve performance. After Xpress 8.7, this is no longer necessary.
Related topics
jvmdetachthread
Parent Topic Procedures and functions

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