A DESCRIPTION OF THE REQUEST :
The message included in the IllegalArgumentException thrown from Java.nio's Buffer class is "null".

JUSTIFICATION :
A message in the exception thrown would make it easier to understand what went wrong when trying to set the position or the limit of the Buffer.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Simple message describing what went wrong.
ACTUAL -
"null" message.

---------- BEGIN SOURCE ----------
Not in a test case format, but you'll get the idea...


public static void main(String[] args) throws InterruptedException {

System.out.println("Java version: " + System.getProperty("java.version"));

System.out.println("==== Test #1 ====");
try {
ByteBuffer bb = ByteBuffer.allocateDirect(1024);
bb.position(1025);
} catch (IllegalArgumentException e) {
System.out.println("Caught exception of type : " + e.getClass());
System.out.println("With Message: " + e.getMessage());
e.printStackTrace();
}

Thread.sleep(100);

System.out.println("==== Test #2 ====");
try {
ByteBuffer bb = ByteBuffer.allocateDirect(1024);
bb.limit(1025);
} catch (IllegalArgumentException e) {
System.out.println("Caught exception of type : " + e.getClass());
System.out.println("With Message: " + e.getMessage());
e.printStackTrace();
}
}


Which outputs:

Java version: 1.8.0_25
==== Test #1 ====
Caught exception of type : class java.lang.IllegalArgumentException
With Message: null
java.lang.IllegalArgumentException
at java.nio.Buffer.position(Buffer.java:244)
at BufferEnhTest.main(BufferEnhTest.java:13)
==== Test #2 ====
Caught exception of type : class java.lang.IllegalArgumentException
With Message: null
java.lang.IllegalArgumentException
at java.nio.Buffer.limit(Buffer.java:275)
at BufferEnhTest.main(BufferEnhTest.java:26)

---------- END SOURCE ----------