MappedMemoryUtils.c can generate exceptions like those : java.io.UncheckedIOException: java.io.IOException: Invalid argument at java.base/java.nio.MappedMemoryUtils.force(MappedMemoryUtils.java:105) at java.base/java.nio.Buffer$2.force(Buffer.java:890) at java.base/jdk.internal.misc.ScopedMemoryAccess.forceInternal(ScopedMemoryAccess.java:317) at java.base/jdk.internal.misc.ScopedMemoryAccess.force(ScopedMemoryAccess.java:305) at java.base/jdk.internal.foreign.MappedMemorySegmentImpl.force(MappedMemorySegmentImpl.java:92) at TestByteBuffer.testMappedSegmentAsByteBuffer(TestByteBuffer.java:327)
(we see this for example on AIX); there is some room for improvement, at least the info should be added that msync failed and caused this exception. ------------- Commit messages: - JDK-8308300 Changes: https://git.openjdk.org/jdk/pull/14054/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=14054&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8308300 Stats: 16 lines in 3 files changed: 13 ins; 0 del; 3 mod Patch: https://git.openjdk.org/jdk/pull/14054.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/14054/head:pull/14054 PR: https://git.openjdk.org/jdk/pull/14054