Steve Loughran created HADOOP-19583:
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             Summary: JDK8: RawLocalFileSystem calls ByteBuffer.flip
                 Key: HADOOP-19583
                 URL: https://issues.apache.org/jira/browse/HADOOP-19583
             Project: Hadoop Common
          Issue Type: Bug
          Components: common
    Affects Versions: 3.4.2
            Reporter: Steve Loughran
            Assignee: Steve Loughran


running 3.4.2 rc1 on older JDK 8 runtimes can fail
{code}


[INFO] -------------------------------------------------------
[INFO] Running org.apache.parquet.hadoop.TestParquetReader
Exception in thread "Thread-8" java.lang.NoSuchMethodError: 
java.nio.ByteBuffer.flip()Ljava/nio/ByteBuffer;
        at 
org.apache.hadoop.fs.RawLocalFileSystem$AsyncHandler.completed(RawLocalFileSystem.java:428)
        at 
org.apache.hadoop.fs.RawLocalFileSystem$AsyncHandler.completed(RawLocalFileSystem.java:362)
        at sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126)
        at 
sun.nio.ch.SimpleAsynchronousFileChannelImpl$2.run(SimpleAsynchronousFileChannelImpl.java:335)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:750)
{code}


this can be fixed trivially, casting to java.io.Buffer first: 
((Byffer)buff).flip())



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