There is possible NPE, when trying to play AudioClip
import java.applet.AudioClip;
import java.io.IOException;
import java.net.URL;
public class AudioNpe {
public static void main(String[] args) throws IOException,
InterruptedException {
URL url = new
URL("https://file-examples-com.github.io/uploads/2017/11/file_example_WAV_1MG.wav";);
AudioClip content = (AudioClip)url.getContent();
content.play();
Thread.sleep(10000L);
}
}
at java.lang.Thread.<init>(Thread.java:393)
at java.lang.Thread.<init>(Thread.java:760)
at
com.sun.media.sound.JSSecurityManager.createThread(JSSecurityManager.java:115)
at com.sun.media.sound.DataPusher.start(DataPusher.java:117)
- locked <0x955> (a com.sun.media.sound.DataPusher)
at
com.sun.media.sound.JavaSoundAudioClip.startImpl(JavaSoundAudioClip.java:202)
- locked <0x95e> (a com.sun.media.sound.JavaSoundAudioClip)
at
com.sun.media.sound.JavaSoundAudioClip.play(JavaSoundAudioClip.java:152)
at main.java.AudioNpe.main(AudioNpe.java:12)
It happens because of bug in
`com.sun.media.sound.JSSecurityManager#createThread` implementation: variable
`String name`, which supposed to be used - actually unused and `null` thread
name is passed to `Thread` constructor.
After fix - audio clip plays without problems.
-------------
Commit messages:
- [PATCH] Avoid NPE when creating a Thread without name
- [PATCH] Avoid NPE when creating a Thread without name
- [PATCH] Avoid NPE when creating a Thread without name
Changes: https://git.openjdk.java.net/jdk/pull/6382/files
Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=6382&range=00
Issue: https://bugs.openjdk.java.net/browse/JDK-8279673
Stats: 85 lines in 3 files changed: 82 ins; 1 del; 2 mod
Patch: https://git.openjdk.java.net/jdk/pull/6382.diff
Fetch: git fetch https://git.openjdk.java.net/jdk pull/6382/head:pull/6382
PR: https://git.openjdk.java.net/jdk/pull/6382
