@Test
public void testReadHeaderThrowsNegativeArraySizeException() throws Throwable {
BaseChannel nACChannel = new NACChannel();
try {
nACChannel.readHeader(-1);
fail("Expected NegativeArraySizeException to be thrown");
} catch (NegativeArraySizeException ex) {
assertNull("ex.getMessage()", ex.getMessage());
assertNull("(NACChannel) nACChannel.serverIn", ((NACChannel) nACChannel).serverIn);
}