Review request for JMC-6245: JMC parser should not assume metadata event to be the last in chunk

[Marcus Hirt]

Hi all,

Please review this fix to make the parser stop expecting the metadata event 
to be the last one in the chunk.

Jira:   https://bugs.openjdk.java.net/browse/JMC-6245
Webrev: http://cr.openjdk.java.net/~hirt/JMC-6245/webrev.01/

Kind regards,
Marcus