David Dali Susanibar Arce created ARROW-15834:
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Summary: [JAVA][Test][Dataset]: Problem to get current reservation
of JVM direct memory on macOS Big Sur
Key: ARROW-15834
URL: https://issues.apache.org/jira/browse/ARROW-15834
Project: Apache Arrow
Issue Type: Test
Components: Java
Affects Versions: 7.0.0
Reporter: David Dali Susanibar Arce
Hi Team,
Just compiling [java dataset
|https://github.com/apache/arrow/tree/master/java/dataset]module it compile
without problems but the test related to get current reservation of JVM direct
memory is failing on my local machine macOS Big Sur 11.5.2.
Command line:
{code:java}
mvn -Darrow.cpp.build.dir=../java-dist/lib clean install {code}
Test code:
{code:java}
/**
* Get current reservation of jVM direct memory. Visible for testing.
*/
@VisibleForTesting
public long getCurrentDirectMemReservation() {
try {
final Class<?> classBits = Class.forName("java.nio.Bits");
final Field f = classBits.getDeclaredField("reservedMemory");
f.setAccessible(true);
return ((AtomicLong) f.get(null)).get();
} catch (Exception e) {
throw new RuntimeException(e);
}
} {code}
Error message:
{code:java}
[ERROR] testDirectReservationListener Time elapsed: 0.028 s <<< ERROR!
java.lang.RuntimeException: java.lang.NoSuchFieldException: reservedMemory
at
org.apache.arrow.dataset.jni.TestReservationListener.testDirectReservationListener(TestReservationListener.java:50)
{code}
If I changed from classBits.getDeclaredField("reservedMemory") to
classBits.getDeclaredField("RESERVED_MEMORY") all the test finished without
problems. Seeing this way to obtain reserved memory on
[Jvm.java|https://github.com/OpenHFT/Chronicle-Core/blob/ea/src/main/java/net/openhft/chronicle/core/Jvm.java#L144].
Consider: Current test on macOS finished ok on the [ci
workflows|https://github.com/ursacomputing/crossbow/runs/4987946390].
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