<i18n dev> <AWT Dev> [8] Review request for 6789984: JPasswordField can not receive keyboard input

Anton Litvinov anton.litvinov at oracle.com
Mon Nov 5 03:14:07 PST 2012

Hello Naoto,

Thank you for the review. A call to "endComposition()" was added to the 
shared code for resolution of another problem which was additionally 
observed. The problem consists in the fact that some not completely 
composed string inside JTextField can stay in composition state after 
the focus is moved from JTextField to JPasswordField. This not completed 
string marked with underscore disappears from JTextField at the moment 
when JTextField receives focus again. So I decided to make this string 
disappear when a component with disabled input methods, in current case 
JPasswordField, receives focus by a call to "endComposition()" method. 
Perhaps, it would be better to remove this call from the fix at all, 
because absence of end of text composition during switch of focus 
between component with enabled and disabled input methods can be another 
separate issue, would not it? But, on the other hand, since this fix 
brings the case with not composed string to a view, it should contain 
some solution which is specific to Unix platforms.

Also a new comment concerning a root cause of the bug from my view point 
and a proposed solution was added to a page of the bug. Since it is not 
visible on "http://bugs.sun.com" yet, it can be seen on Oracle's 
internal bug tracking resource.

Thank you,

On 11/2/2012 9:08 PM, Naoto Sato wrote:
> Hi Anton,
> What's the reason for adding endComposition() in the shared code? 
> endComposition() is supposed to end the unfinished composed string 
> that is currently in composition, and the bug does not mention 
> anything regarding the composition. Also, it looks like the bug is 
> localized only to SCIM on Unix platforms, and calling resetXIC() looks 
> just enough in XIM handling code to me.
> Naoto
> On 11/2/12 5:43 AM, Anthony Petrov wrote:
>> Hi Anton,
>> I'm not an expert in IM code, but generally the changes look good to me.
>> I'm also CC'ing i18n-dev@ to take a look at this fix.
>> My only concern is that you're changing shared code here. Did you run
>> any IM tests on other platforms to make sure no regressions are 
>> introduced?
>> Also, could you please add a comment to the bug report explaining the
>> root cause of the issue and how the proposed solution helps resolve it?
>> -- 
>> best regards,
>> Anthony
>> On 11/1/2012 8:40 PM, Anton Litvinov wrote:
>>> Hello,
>>> Please review the following fix for a bug.
>>> Bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6789984
>>> Webrev: http://cr.openjdk.java.net/~alitvinov/6789984/webrev.00
>>> This bug consists in inability of JPasswordField to react on any
>>> keyboard events under certain conditions on Linux OS. The webrev does
>>> not contain any new "jtreg" test, because a particular Linux OS
>>> distribution with additionally installed packages are required for
>>> reproduction of the bug.
>>> Requirements to the environment:
>>> 1. Oracle Enterprise Linux (OEL) 5.6 x86 64/Oracle Enterprise Linux
>>> (OEL) 5.5 x86 64
>>> 2. Package "scim-anthy-1.2.0-6.el5.x86_64" and its all dependent
>>> packages installed on the OS.
>>> 3. JDK 8.
>>> 4. A simple Java Swing application, where a dialog with both
>>> JTextField and JPasswordField is displayed.
>>> Thank you,
>>> Anton

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