[lworld] Integrated: 8251107: [lworld] test lworld-values/TopInterfaceNegativeTest.java is failing

[Srikanth Adayapalam]

Fix problems exposed by sealing

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Commit messages:
 - 8251107: test lworld-values/TopInterfaceNegativeTest.java is failing

Changes: https://git.openjdk.java.net/valhalla/pull/139/files
 Webrev: https://webrevs.openjdk.java.net/valhalla/139/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8251107
  Stats: 6 lines in 1 file changed: 4 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/139.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/139/head:pull/139

PR: https://git.openjdk.java.net/valhalla/pull/139