transferFrom() doesn't transfer any bytes from source file channel to destination file channel. Also, it returns invalid value -1.

Same results on Window NT, Solaris and Linux.

Merlin Beta build B-58.

------- part of test code -------------
String testName = "xferTest01" ;
byte[] dstData ;
long fileLength ;
FileChannel fc1, fc2 ;
String srcFileName = "src." + testName + partialFileName ;
String dstFileName = "dst." + testName + partialFileName ;
byte[] srcData = Helper.getRandomByteArray(MIN_DATA_SIZE, MAX_DATA_SIZE);

try {
int bytesWritten ;

// create a file and write data to the file, then close the file.
if (! Helper.createFile(srcFileName, srcData)) {
return TestHelper.testFail(testName + " FAIL: test aborted!");
}
//get read file channel for the file
fc1 = Helper.openReadFileChannel(new File(srcFileName));
System.out.println("fc1.position=" + fc1.position() + ", fc1.size=" + fc1.size());

// get filechannel for the dst file.
fc2 = Helper.openRWFileChannel(dstFileName) ;
System.out.println("fc2.position=" + fc2.position() + ", fc2.size=" + fc2.size());
bytesWritten = fc2.transferFrom(fc1, 0, srcData.length);

if (bytesWritten != srcData.length) { // << fails here
return TestHelper.testFail(testName + " FAIL: could not write all bytes to file channel " +
fc2 +": srcData length=" + srcData.length
+ ", written=" + bytesWritten);
}


} catch (Exception e) {
return TestHelper.testFail(testName + " FAIL: Unexpected Exception", e);
}

------- results -------------------
java FCtransferFrom
fc1.position=0, fc1.size=5916
fc2.position=0, fc2.size=0
TestFailException: xferTest01 FAIL: could not write all bytes to file channel sun.nio.ch.FileChannelImpl@12d342: srcData length=5916, written=-1
        at TestHelper.testFail(TestHelper.java:70)
        at FCtransferFrom.xferTest01(FCtransferFrom.java:156)
:
:
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