RFR: 8368882: NPE during text drawing on machine with JP locale [v2]

Sergey Nazarkin snazarki at openjdk.org
Mon Oct 13 15:09:20 UTC 2025


> There is a reproducible bug in symbol rendering on Windows machines with [particular](https://github.com/openjdk/jdk/blob/9d71af108ea2cc3682607527246d60a19fd820ba/src/java.desktop/windows/native/libawt/windows/awt_Win32GraphicsEnv.cpp#L244) default locales. This changeset fixes the deferred font initialisation request, which now skips the last font in the list. 
> 
> The test (attached to the jira) was performed on a Windows 11 machine with the Japanese locale set as the default.  Without the fix, it fails with an NPE. With the fix it displays a window showing glyphs drawn by all the fonts accessible from the Java application.

Sergey Nazarkin has updated the pull request incrementally with one additional commit since the last revision:

  Add test

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/27551/files
  - new: https://git.openjdk.org/jdk/pull/27551/files/4d7042a3..7afddf8c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27551&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27551&range=00-01

  Stats: 130 lines in 4 files changed: 130 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/27551.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27551/head:pull/27551

PR: https://git.openjdk.org/jdk/pull/27551


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