ImageReader instances returned by ImageIO.getImageReaders() don't correctly follow spec for the following methods: getAspectRatio(), getRawImageType().

There are problems with throwing of IndexOutOfBoundsException from these methods.
1) javax.imageio.PNGImageReader.getAspectRatio() doesn't throw IndexOutOfBoundsException for incorrect index
Please find in the attachment the file GetAspectRatioTest.java to verify this behavior.
Output is following:
ImageReader: javax.imageio.PNGImageReader@a440b9
Num of Images: 1
getAspectRatio(0) = 1.0294118
getAspectRatio(-2147483648) didn't throw IndexOutOfBoundsException
getAspectRatio(-2147483648) = 1.0294118
getAspectRatio(-1) didn't throw IndexOutOfBoundsException
getAspectRatio(-1) = 1.0294118
getAspectRatio(10) didn't throw IndexOutOfBoundsException
getAspectRatio(10) = 1.0294118
getAspectRatio(2147483647) didn't throw IndexOutOfBoundsException
getAspectRatio(2147483647) = 1.0294118
Failed

2) javax.imageio.JPEGImageReader.getRawImageType() doesn't throw IndexOutOfBoundsException for index = -1.
Please find in the attachment corresponding example GetRawImageTypeTest.java.
Output is:
ImageReader: javax.imageio.JPEGImageReader@c3e31
getMinIndex() = 0
getRawImageType(-2147483648): OK
getRawImageType(-1) didn't throw IndexOutOfBoundsException
getRawImageType(-1) = null
getRawImageType(10): OK
getRawImageType(2147483647): OK
Failed