Pressing an arrow key causes Components to lose focus and, therefore, you can't type any keys further. This happens only on one of two Japanese Solaris 7 machines.

What we found out are:

  - This doesn't depend on a locale. (i.e., reproducible in both C and ja locales)
  - This often (not always) causes a Japanese input method to freeze.
  - This is reproducible using Notepad, Stylepad, InputDislog of SwingSet and IMFTest (test/java/awt/im/IMFTest).
  - This is not reproducible using PlainText and other components of SwingSet.
  - If Canvas instead of Component is used in IMFTest, it's no longer reproducible in C locale, but still reproducible in ja locale. This means it's possible that there are two separate problems with arrow keys.

It's not known if this is reproducible on a non-localized Solaris 7.

Notes on the two machines.

  - Reproducible on Ultra-1 with Japanese Solaris7 new installation.
  - Not reproducible on Ultra-2 with Japanese Solaris7 upgrade installation.
  - Both are running in the 32-bit mode.

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More findings:

  - This depends on accounts, not machines to reproduce.
  - It gets much harder to reproduce this with native thread. But still reproducible.
  - A similar cursor key problem is reproducible using dtpad with the ATOK8 input method.

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I confirmed that this symptom is reproducible using:

  - /usr/dt/bin/hotjava (with the IMFTest applet for JDK1.1.x)
  - JDK1.1.7A + Swing-1.0.3 (where the functionality is common)

masayoshi.okutsu@Eng 1998-11-20