Temp file creation fails with JDK 17

[marinier]

Creating a temporary file in an Android app via Files.createTempFile(null, ".tmp"); works for GraalVM 22 JDK 11, but not JDK 17.

Expected Behavior

Using the reproducer below, I expect output like this in the console (which I get with JDK 11 versions of GraalVM):

[Tue. Feb. 08 14:34:16 EST 2022][INFO] [SUB] D/GraalCompiled(11718): Created temp file at: /data/user/0/com.gluonapplication.gluonmobilesingleviewproject/9221306799863213037.tmp

Current Behavior

An exception is thrown when trying to create the temp file with JDK 17 versions of GraalVM:

[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): Failed to create temp file
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): java.nio.file.NoSuchFileException: /tmp/13973661146619086989.tmp
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at sun.nio.fs.UnixFileSystemProvider.newByteChannel(UnixFileSystemProvider.java:218)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at java.nio.file.Files.newByteChannel(Files.java:380)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at java.nio.file.Files.createFile(Files.java:658)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at java.nio.file.TempFileHelper.create(TempFileHelper.java:136)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at java.nio.file.TempFileHelper.createTempFile(TempFileHelper.java:159)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at java.nio.file.Files.createTempFile(Files.java:923)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at com.gluonapplication.GluonApplication.<init>(GluonApplication.java:17)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at java.lang.reflect.Constructor.newInstance(Constructor.java:480)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$8(LauncherImpl.java:803)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:484)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:457)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at java.security.AccessController.doPrivileged(AccessController.java:107)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:456)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at com.sun.glass.ui.monocle.RunnableProcessor.runLoop(RunnableProcessor.java:92)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at com.sun.glass.ui.monocle.RunnableProcessor.run(RunnableProcessor.java:51)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at java.lang.Thread.run(Thread.java:833)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at com.oracle.svm.core.thread.JavaThreads.threadStartRoutine(JavaThreads.java:597)
[Tue. Feb. 08 13:39:45 EST 2022][INFO] [SUB] D/GraalCompiled( 5369): 	at com.oracle.svm.core.posix.thread.PosixJavaThreads.pthreadStartRoutine(PosixJavaThreads.java:194)

One potentially suspicious element is that the path it reports when it fails is completely different (in /tmp instead of /data/user/0/com.gluonapplication.gluonmobilesingleviewproject).

Steps to Reproduce

I have a simple reproducer here: https://github.com/marinier/androidtempfiletest

The README in there contains additional details.

Your Environment

Ubuntu 20.04 64-bit running in a VirtualBox VM on a Windows 10 64-bit host.

I have tried building with various versions of GraalVM 22:

• Oracle GraalVM CE 22.0.0.2 JDK 11
• Oracle GraalVM CE 22.0.0.2 JDK 17
• Gluon GraalVM 22.0.0.3 JDK 11
• Gluon GraalVM 22.0.0.3 JDK 17

I have tried this on Android 10, 11, and 12 (Samsung and Pixel phones) with the same result.

[jperedadnr]

Filed oracle/graal#4497

[marinier]

Looks like they closed it without addressing it, claiming it's not their problem :(