On Tue, 5 Jan 2021 15:33:54 GMT, Maurizio Cimadamore <mcimadam...@openjdk.org> wrote:
> Hi, > this patch fixes an oversight where the address() method in > FileChannelImpl.Unmapper does not take into account the value of > `pagePosition` - this leads to a situation in which, effectively, the > specified offset when mapping the segment is ignored by the runtime (because > base address will always be aligned to some known quantity - which is > OS/platform dependent). > > To test this I had to break open into FileChannelImpl and ready the > granularity. test/jdk/java/foreign/TestByteBuffer.java line 28: > 26: * @modules java.base/sun.nio.ch > 27: * jdk.incubator.foreign/jdk.internal.foreign > 28: * @run testng/othervm --illegal-access=permit > -Dforeign.restricted=permit TestByteBuffer Can you change java.base/sun.nio.ch to java.base/sun.nio.ch:+open instead? That would avoid the --illegal-access=permit. ------------- PR: https://git.openjdk.java.net/jdk16/pull/84
