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[RaiMan <rmhdevelop@xxxxxx>]

Using Java 7?

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https://bugs.launchpad.net/bugs/1086238

Title:
  Sikuli throws StackOverflowError when capturing a screenshot on a
  webpage already has opacity

Status in Sikuli:
  New

Bug description:
  Sikuli r930 for Windows 7 SP1 64-bit.

  When on a page which has a layer of opacity set around a particular
  window (to draw attention to it and prevent focus to other parts of
  the page), Sikuli`s capture screenshot gesture throws a huge
  StackOverflowError:

  Exception in thread "capture" java.lang.StackOverflowError
  at org.sikuli.script.TransparentWindow.setOpacity(TransparentWindow.java:18)
  at java.awt.Window$1.setOpacity(Unknown Source)
  at com.sun.awt.AWTUtilities.setWindowOpacity(Unknown Source)
  at org.sikuli.script.Win32Util.setWindowOpacity(Win32Util.java:80)
  at org.sikuli.script.TransparentWindow.setOpacity(TransparentWindow.java:18)
  at java.awt.Window$1.setOpacity(Unknown Source)
  at com.sun.awt.AWTUtilities.setWindowOpacity(Unknown Source)
  at org.sikuli.script.Win32Util.setWindowOpacity(Win32Util.java:80)
  at org.sikuli.script.TransparentWindow.setOpacity(TransparentWindow.java:18)
  at java.awt.Window$1.setOpacity(Unknown Source)
  at com.sun.awt.AWTUtilities.setWindowOpacity(Unknown Source)
  at org.sikuli.script.Win32Util.setWindowOpacity(Win32Util.java:80)
  at org.sikuli.script.TransparentWindow.setOpacity(TransparentWindow.java:18)
  at java.awt.Window$1.setOpacity(Unknown Source)
  at com.sun.awt.AWTUtilities.setWindowOpacity(Unknow
  n Source)
  ... and repeated the same stack dozens of times.

  In my case, I was logged-into a browser-based game and attempted to
  try capturing part of the screen in Sikuli and it failed. This is
  reproducible every time. The full stack and a screenshot of the
  webpage are attached.

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