FULL PRODUCT VERSION :
java version "1.7.0_72"
Java(TM) SE Runtime Environment (build 1.7.0_72-b14)
Java HotSpot(TM) 64-Bit Server VM (build 24.72-b04, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux chimay 3.13.0-37-generic #64-Ubuntu SMP Mon Sep 22 21:28:38 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux


A DESCRIPTION OF THE PROBLEM :
Calling PosixFileAttributeView.setPermissions() on a file which has write but no read permission throws an AccessDeniedException iff LinkOption.NOFOLLOW_LINKS is passed. Without the option it works fine.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the executable test case below.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Expected output would be as below, without any exceptions.

first setPermissions()
second setPermissions()
third setPermissions()
fourth setPermissions()

ACTUAL -
The actual output is below. The fourth and final setPermission() call throws an AccessDeniedException.

first setPermissions()
second setPermissions()
third setPermissions()
fourth setPermissions()
Exception in thread "main" java.nio.file.AccessDeniedException: /tmp/bar8340250403048004139.tmp
at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
at sun.nio.fs.UnixPath.openForAttributeAccess(UnixPath.java:787)
at sun.nio.fs.UnixFileAttributeViews$Posix.setMode(UnixFileAttributeViews.java:220)
at sun.nio.fs.UnixFileAttributeViews$Posix.setPermissions(UnixFileAttributeViews.java:250)
at com.datadobi.n2n.distributed.nfsproxy.handlers.Example.main(Example.java:30)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)


ERROR MESSAGES/STACK TRACES THAT OCCUR :
Exception in thread "main" java.nio.file.AccessDeniedException: /tmp/bar8340250403048004139.tmp
at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
at sun.nio.fs.UnixPath.openForAttributeAccess(UnixPath.java:787)
at sun.nio.fs.UnixFileAttributeViews$Posix.setMode(UnixFileAttributeViews.java:220)
at sun.nio.fs.UnixFileAttributeViews$Posix.setPermissions(UnixFileAttributeViews.java:250)
at com.datadobi.n2n.distributed.nfsproxy.handlers.Example.main(Example.java:30)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.LinkOption;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.attribute.PosixFileAttributeView;
import java.nio.file.attribute.PosixFilePermission;
import java.util.Collections;

public class Example
{
    public static void main(String[] args) throws IOException
    {
        Path fooPath = Files.createTempFile(Paths.get("/tmp"), "foo", ".tmp");

        PosixFileAttributeView fooView = Files.getFileAttributeView(fooPath, PosixFileAttributeView.class);
        System.err.println("first setPermissions()");
        fooView.setPermissions(Collections.singleton(PosixFilePermission.OWNER_WRITE));
        System.err.println("second setPermissions()");
        fooView.setPermissions(Collections.singleton(PosixFilePermission.OWNER_WRITE));

        Path barPath = Files.createTempFile(Paths.get("/tmp"), "bar", ".tmp");

        PosixFileAttributeView barView = Files.getFileAttributeView(barPath, PosixFileAttributeView.class, LinkOption.NOFOLLOW_LINKS);
        System.err.println("third setPermissions()");
        barView.setPermissions(Collections.singleton(PosixFilePermission.OWNER_WRITE));
        System.err.println("fourth setPermissions()");
        barView.setPermissions(Collections.singleton(PosixFilePermission.OWNER_WRITE));
    }
}

---------- END SOURCE ----------