RFR: 8253084: Zero VM is broken after JDK-8252689

[Jie Fu]

Hi all,

JBS: https://bugs.openjdk.java.net/browse/JDK-8253084

The build fails due to 'NULL' can't be converted from type 'long' to type 'Handle'
The fix returns 'Handle()' instead of 'NULL'.

Best regards,
Jie

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Commit messages:
 - 8253084: Zero VM is broken after JDK-8252689

Changes: https://git.openjdk.java.net/jdk/pull/147/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=147&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8253084
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/147.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/147/head:pull/147

PR: https://git.openjdk.java.net/jdk/pull/147