This problem is reproducible quite stable on the Linux only.

The testcases which fail (independently on previous state of VM
or tests results) are:
RandomAccessFile0048
RandomAccessFile0068
RandomAccessFile0072
RandomAccessFile0076
RandomAccessFile0080
RandomAccessFile0085
RandomAccessFile0105

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$JCK_HOME=<JCK home>
testCase=RandomAccessFile0076

java -classpath $JCK_HOME/tests/../classes:$JCK_HOME/javatest.jar:. javasoft.sqe.tests.api.java.io.RandomAccessFile.testRAF -TestCaseID $testCase -TestURL file://$JCK_HOME/tests/api/java_io/RandomAccessFile/descriptions.html#Write -TestWorkDirURL file://&lt;the workdir>/


Where <the workdir> is NFS mounted directory.
-------------------------------------------------------------------------------

package javasoft.sqe.tests.api.java.io.RandomAccessFile;

import javasoft.sqe.javatest.Status;
import javasoft.sqe.jck.lib.FileTest;

public class testRAF {

    public static void main(String[] s) {
        try {
            for (int i = 0; i < 100; i++) {
        System.out.println(i);
        WriteTests test = new WriteTests();
        if (test.run(s, System.err, System.out).getType() !=Status.PASSED) {
         System.err.println("FAILED !!!!!!!!!!!");
         System.exit(13);
        }
            }
        } catch (Exception e) {
            System.err.println(e);
        }
    }
}
-------------------------------------------------------------------------------
Output:
...
15
====== RandomAccessFile0076 ======
File verification failed at byte 285
expected: -70
read from file: 83
FAILED !!!!!!!!!!!
-------------------------------------------------------------------------------
Linux RedHat 2.2.14-0.5