PNG reader is unable to read any image available in the input source and throws
the following Exception. This failure occurs for both File and InputStream
input sources.

Here is the Exception :

java.lang.IllegalArgumentException: LUT has improper length!
at javax.imageio.ImageTypeSpecifier$Indexed.<init>(ImageTypeSpecifier.java:831)
at javax.imageio.ImageTypeSpecifier.createIndexed(ImageTypeSpecifier.java:919)
at com.sun.imageio.plugins.png.PNGImageReader.getImageTypes( PNGImageReader.java:1459)
at com.sun.imageio.plugins.png.PNGImageReader.readImage( PNGImageReader.java:1343)
at com.sun.imageio.plugins.png.PNGImageReader.read(PNGImageReader.java:1526)
at ImgReadPNG.actionPerformed(ImgReadPNG.java:85)
at java.awt.Button.processActionEvent(Button.java:384)
at java.awt.Button.processEvent(Button.java:353)
at java.awt.Component.dispatchEventImpl(Component.java:3474)
at java.awt.Component.dispatchEvent(Component.java:3341)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:439)
at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:131)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)

This failure occurs on all the platforms and occurs only on beta-refresh.
It passes on Merlin-beta. I tested this beta-refresh build 63b.
I also tried using the ImageIO.read() method and got the same failure.
Herewith I have enclosed the sample code.

How to reproduce the bug?
Compile and run the sample code attached. You would get a frame with a 'load'
button. Click the load button. If you see the above exception in the
command prompt then the bug is reproduced.