[jdk11u-dev] RFR: 8263490: [macos] Crash occurs on JPasswordField with activated InputMethod

[Toshio Nakamura]

Hi,

Original patch almost applies cleanly to 11u. Only copyright year was adjusted.
This crash issue with Input Method of GUI was observed with 11.0.12, and I'd like to backport it.

Original bug: https://bugs.openjdk.java.net/browse/JDK-8263490

Testing: tier1, java/awt and javax/swing on macOS

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Commit messages:
 - Backport 32c7fcc67010e44411918cc73681422fd8b7a67a

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/295/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=295&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8263490
  Stats: 5 lines in 1 file changed: 4 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/295.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/295/head:pull/295

PR: https://git.openjdk.java.net/jdk11u-dev/pull/295