The following snippet is supposed to throw FileAlreadyExistsException when it tries to open the current directory for writing with the "create new" option also set:
OpenOption[] opts = { WRITE, CREATE_NEW };
Files.newByteChannel(Path.of(""), opts);

However, on Linux, it throws an unexpected ArrayIndexOutOfBoundsException with the stack trace looking like

at java.base/sun.nio.fs.UnixChannelFactory.open(UnixChannelFactory.java:203)
at java.base/sun.nio.fs.UnixChannelFactory.newFileChannel(UnixChannelFactory.java:133)
at java.base/sun.nio.fs.UnixChannelFactory.newFileChannel(UnixChannelFactory.java:146)
at java.base/sun.nio.fs.UnixFileSystemProvider.newByteChannel(UnixFileSystemProvider.java:216)