Integer overflow in Java wrapper

[scheidtp]

openjpeg/wrapping/java/openjp2/java-sources/org/openJpeg/OpenJPEGJavaEncoder.java

Lines 121 to 124 in a589155

	if (compressedStream== null || (compressedStream.length != width*height*depth/8)) {
	logMessage("OpenJPEGJavaEncoder.encodeImageToJ2K: (re-)allocating " + (width*height*depth/8) + " bytes for the compressedStream");
	compressedStream = new byte[width*height*depth/8];
	}

The current implementation of calculating the destination byte array size is buggy.
My test image has a size of 28000x7000x16. Because the calculation processes the operants from left to right, after multiplying the depth the calculated value creates an int overflow, which results in a negative destination array size. Simple brackets around the division of the depth by 8 should resolve this issue.