How do I capture diagnostics for java applications running in OpenShift?

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Issue

How do I run the high_cpu_linux_jstack.sh mentioned on article on an application running in an OpenShift container?
How do I download application logs for support from a running POD?
What diagnostics will support ask on my middleware application running in an OpenShift container?
How do I capture a heap dump from an application running in a POD?

Environment

*OpenShift 3.x
* Fuse Integration Services 2.x
* Java Applications

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