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  1. JDK
  2. JDK-4817479

Robot is generating multiple key events against single keystroke on Redhat Linux

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    Details

    • Subcomponent:
    • Resolved In Build:
      b35
    • CPU:
      x86, sparc
    • OS:
      linux, linux_redhat_9.0, linux_suse_sles_8.2, solaris_2.6, solaris_8
    • Verification:
      Verified

      Description

      Tested_Java_Release : 1.4.2 build-16
      Tested_Java_Location : /net/koori.sfbay/p/jdk01/jdk/1.4.2/beta/b16/binaries/linux-i586
      Tested_Machine_Name : sqe-jpi-05/dnm-dtf-016
      Tested O/S : redhat 7.3/redhat 8.0

      Problem Description:
       Combination of methods keyPress(KeyCode) and keyRelease(KeyCode) in java.awt.Robot are not working as desired on Redhat linux8.0. Somehow it's generating multiple key events against the single keystroke(key is pressed and released once). Same piece of code works fine on linux7.3 and all other windows and solaris platforms

      Steps to Reproduce :
      --------------------
      a)Single key
      1) Try to run the attached Robot1.java file. In this file key "t" is tried to press and release just only once using robot.
      2) if you see the the text on the TextField as "tt" instead of "t" then the bug is reproduced

      b)key combinations
      1) Try to run the attached Robot.java file. In this file cliboard is being set with text "*Testing Robot*" and the same text is tried to get pasted on the textfield using CNTRL-V key combination.
      2) If Instead of "*Testing Robot*" you happened to see "*Testing Robot**Testing Robot**TestingRobot**TestingRobot*..............*TestingRobot**TestingRobot*vvvvvvvvvvvvvvv" then the bug is reproduced

      The bug is also getting reflected to the Prorobot. File using Prorobot(ProrobotTest.java) instead of Robot has been attached with the bug report.
      --------------------------------------------------------------------------------
      One of the workaround suggested i.e Increase the key repeat delay on the RedHat 8.0 machine works fine. One has to set the delay to maximum.
      But the reducing the robot delay within the code is not changing the behavior at all. We are specifying delays at two places (RobotTest1.java and RobotTest.java), one before the keyPress and one between the keyPress and keyRelease. Below are the code snipets

      RobotTest1.java
      Delay1 robot.setAutoDelay(500);
        robot.keyPress(java.awt.event.KeyEvent.VK_T);
      Delay2 robot.setAutoDelay(500);
      robot.keyRelease(java.awt.event.KeyEvent.VK_T);
      RobotTest.java
      sClip.setContents(content,content);
      Delay1 robot.setAutoDelay(1000);
      robot.keyPress(java.awt.event.KeyEvent.VK_CONTROL);
        robot.keyPress(java.awt.event.KeyEvent.VK_V);
      Delay2 robot.setAutoDelay(500);
           robot.keyRelease(java.awt.event.KeyEvent.VK_CONTROL);
      robot.keyRelease(java.awt.event.KeyEvent.VK_V);
      Following behavior has been noticed while evaluating the bug:
      1) If the Delay1 is there the Delay2 becomes irrelevant i.e. one can still notice the repetion of keys even the Delay2 is completely removed.
      2) If the Delay1 is removed then it's work fine even without touching the Delay2 at all.
      It's quite interesting that what Delay1 has to do with keyPress and KeyRelease combination which is called before these two events has been called. Also we can't get rid of Delay1 ,as in our test cases we have to make sure that the Cliboard has been set with the desired contents so that the same contents can later be pasted to desired location to proceed with testing.
      ###@###.### 2003-03-03
      ========================================================================================================================
      ###@###.### 2003-10-28
      JDK: mantis, tiger
      Platforms: RH8, RH9, Mercury, SuSE8.2, SLES
      Window Manager: Metacity

      Failed testcases: 31 testcases:
      4812771 (dup of 4817479, this bug.)
      AWT_Merlin_WS/MerlinFocus/src/Automated/AWT/DisableTraversalKeyTest/DisableTraversalKeyTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Lw/DisableTraversalKeyTest/DisableTraversalKeyTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Mw/DisableTraversalKeyTest/DisableTraversalKeyTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Swing/DisableTraversalKeyTest/DisableTraversalKeyTest.html
      4814272 (dup of 4812771)
      AWT_Merlin_WS/MerlinFocus/src/Automated/Mw/ForwardReversetraversalTest/ForwardReverseTraversalTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Lw/ForwardReverseTraversalTest/ForwardReverseTraversalTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/AWT/ForwardReverseTraversalTest/ForwardReverseTraversalTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Swing/ForwardReverseTraversalTest/ForwardReverseTraversalTest.html
      4814244 (dup of 4812771)
      AWT_Merlin_WS/MerlinFocus/src/Automated/Mw/TemporaryFocusEventTest/TemporaryFocusEventTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Lw/TemporaryFocusEventTest/TemporaryFocusEventTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/AWT/TemporaryFocusEventTest/TemporaryFocusEventTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Swing/TemporaryFocusEventTest/TemporaryFocusEventTest.html
      4814233 (dup of 4812771)
      AWT_Merlin_WS/MerlinFocus/src/Automated/AWT/SetTraversalPolicyTest/SetTraversalPolicyTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Lw/SetTraversalPolicyTest/SetTraversalPolicyTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Mw/SetTraversalPolicyTest/SetTraversalPolicyTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Swing/SetTraversalPolicyTest/SetTraversalPolicyTest.html
      4814222 (dup of 4812771)
      AWT_Merlin_WS/MerlinFocus/src/Automated/AWT/OppositeComponentTest/OppositeComponentTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Lw/OppositeComponentTest/OppositeComponentTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Mw/OppositeComponentTest/OppositeComponentTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Swing/OppositeComponentTest/OppositeComponentTest.html
      4812845 (dup of 4812771)
      AWT_Merlin_WS/MerlinFocus/src/Automated/AWT/KeyboardFocusManagerEventTest/KeyboardFocusManagerEventTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Mw/KeyboardFocusManagerEventTest/KeyboardFocusManagerEventTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Swing/KeyboardFocusManagerEventTest/KeyboardFocusManagerEventTest.html
      4812831 (dup of 4812771)
      AWT_Merlin_WS/MerlinFocus/src/Automated/AWT/FocusTraversalTest/FocusTraversalTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Lw/FocusTraversalTest/FocusTraversalTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Mw/FocusTraversalTest/FocusTraversalTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Swing/FocusTraversalTest/FocusTraversalTest.html
      4812816 (dup of 4812771)
      AWT_Merlin_WS/MerlinFocus/src/Automated/AWT/FocusCycleTest/FocusCycleTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Swing/FocusCycleTest/FocusCycleTest.html
      4812809 (dup of 4812771)
      AWT_Merlin_WS/MerlinFocus/src/Automated/Lw/DefaultTraversalKeyTest/DefaultTraversalKeyTest.html
      AWT_Merlin_WS/MerlinFocus/src/Automated/Mw/DefaultTraversalKeyTest/DefaultTraversalKeyTest.html


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              Assignee:
              bchristi Brent Christian
              Reporter:
              jijising Jitender Singh (Inactive)
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