RFR: 8269336: Malformed jdk.serialFilter incorrectly handled

[Jaikiran Pai]

Can I please get a review for this change which addresses https://bugs.openjdk.java.net/browse/JDK-8269336?

As noted in that issue, this change will now propagate any exception that occurred during parsing and creation of the filter configured through the `jdk.serialFilter` system property. It will also continue to log those errors, like it previously did.

A new jtreg test has been introduced to reproduce this issue and verify the fix. 

Given that invalid values for this system property will now start throwing exception, will this change need a CSR?

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Commit messages:
 - 8269336: Malformed jdk.serialFilter incorrectly handled

Changes: https://git.openjdk.java.net/jdk/pull/5988/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5988&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8269336
  Stats: 90 lines in 2 files changed: 89 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5988.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5988/head:pull/5988

PR: https://git.openjdk.java.net/jdk/pull/5988