java.awt.IllegalComponentStateException: The frame is decorated

Hi,
I got the following error from an old code that I am trying to fix to work in modern version of matlab: (If there is an easy way to fix the bug, would be really helpful!)
Java exception occurred:
java.awt.IllegalComponentStateException: The frame is decorated
at java.awt.Frame.setOpacity(Frame.java:960)
at java.awt.Window$1.setOpacity(Window.java:4037)
at com.sun.awt.AWTUtilities.setWindowOpacity(AWTUtilities.java:174)

The original code is the following:
for stepIdx = 1 : 10
if stepIdx == 1
com.sun.awt.AWTUtilities.setWindowOpacity(jWindow1,0.01)
pause(0.25)
end
newAlpha = -.01 + 0.1*stepIdx;
com.sun.awt.AWTUtilities.setWindowOpacity(jWindow1,newAlpha)
jWindow1.repaint;
endHi,
I got the following error from an old code that I am trying to fix to work in modern version of matlab: (If there is an easy way to fix the bug, would be really helpful!)
Java exception occurred:
java.awt.IllegalComponentStateException: The frame is decorated
at java.awt.Frame.setOpacity(Frame.java:960)
at java.awt.Window$1.setOpacity(Window.java:4037)
at com.sun.awt.AWTUtilities.setWindowOpacity(AWTUtilities.java:174)

The original code is the following:
for stepIdx = 1 : 10
if stepIdx == 1
com.sun.awt.AWTUtilities.setWindowOpacity(jWindow1,0.01)
pause(0.25)
end
newAlpha = -.01 + 0.1*stepIdx;
com.sun.awt.AWTUtilities.setWindowOpacity(jWindow1,newAlpha)
jWindow1.repaint;
end Hi,
I got the following error from an old code that I am trying to fix to work in modern version of matlab: (If there is an easy way to fix the bug, would be really helpful!)
Java exception occurred:
java.awt.IllegalComponentStateException: The frame is decorated
at java.awt.Frame.setOpacity(Frame.java:960)
at java.awt.Window$1.setOpacity(Window.java:4037)
at com.sun.awt.AWTUtilities.setWindowOpacity(AWTUtilities.java:174)

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