[jira] [Created] (GEODE-7369) Deprecate SystemFailure Class

["Bill Burcham (Jira)" <ji...@apache.org>]

Bill Burcham created GEODE-7369:
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             Summary: Deprecate SystemFailure Class
                 Key: GEODE-7369
                 URL: https://issues.apache.org/jira/browse/GEODE-7369
             Project: Geode
          Issue Type: Bug
          Components: core
            Reporter: Bill Burcham


The {{SystemFailure}} class is a clearing house for detecting and attempting to mitigate {{SystemFailure}} exceptions e.g. {{VirtualMachineError}} and {{OutOfMemoryError}}.

This class should not exist. {{SystemFailure}} exceptions should be allowed to percolate up and cause the JVM to terminate with an informative message in the log, if possible.

Here is what the JVM spec has to say [1]:

"A Java Virtual Machine implementation throws an object that is an instance of a subclass of the class VirtualMethodError (sic) when an internal error or resource limitation prevents it from implementing the semantics described in this chapter. This specification cannot predict where internal errors or resource limitations may be encountered and does not mandate precisely when they can be reported."

There's a typo in the spec there: it says "VirtualMethodError" when it means "VirtualMachineError". Anyhoo, the upshot is: the JVM spec does not apply after you've encountered a {{VirtualMachineError}}. As a result, there is no reason to believe that subsequent processing will make things _better_ (than exiting immediately).

This class should be deprecated so no new dependencies to it are added. Existing dependencies on it, should be eliminated over time.

[1] https://docs.oracle.com/javase/specs/jvms/se7/html/jvms-6.html#jvms-6.3



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