scrcpy: NullPointerException ClipboardManager.getAddPrimaryClipChangedListener()

I have read the FAQ.
I have searched in existing issues.

Environment

OS: [Ubuntu 18.04 LTS]
scrcpy version: [v1.14]
installation method: [snap]
device model: Custom Android device running Snapdragon 210
Android version: [v6.0.1]

Describe the bug Crash on opening Scrcpy after snap updated it to v1.14. I understand that older Android devices are not supported, but this device was working perfectly until scrcpy v1.13. Tried using scrcpy -m 800/1080/1920, etc. as suggested for this issue in countless older threads but this doesn’t work. Tried changing to lower bitrate as well scrcpy -b 1M/2M but to no avail.

On errors, please provide the output of the console (and adb logcat if relevant).

INFO: scrcpy 1.14 <https://github.com/Genymobile/scrcpy>
/usr/local/share/scrcpy/scrcpy-server: 1 file pushed. 1.0 MB/s (33142 bytes in 0.033s)
[server] INFO: Device: **Redacted** (Android 6.0.1)
[server] ERROR: Exception on thread Thread[main,5,main]
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Class java.lang.Object.getClass()' on a null object reference
	at com.genymobile.scrcpy.wrappers.ClipboardManager.getAddPrimaryClipChangedListener(ClipboardManager.java:99)
	at com.genymobile.scrcpy.wrappers.ClipboardManager.addPrimaryClipChangedListener(ClipboardManager.java:111)
	at com.genymobile.scrcpy.Device.<init>(Device.java:83)
	at com.genymobile.scrcpy.Server.scrcpy(Server.java:23)
	at com.genymobile.scrcpy.Server.main(Server.java:225)
	at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
	at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:251)

I’ve downgraded scrcpy to v1.12-1-g71df317 via channel ‘edge’ and it’s working fine now. Even if this issue is not resolved, I request the devs to keep older versions v1.12 or v1.13 available via snap channels for easy downgrade.

About this issue

Original URL
State: closed
Created 4 years ago
Comments: 15

Commits related to this issue

Do not crash on missing clipboard manager Some devices have no clipboard manager. In that case, do not try to enable clipboard synchronization to avoid a crash. Fixes #1440 <https://github.com/Geny... — committed to Genymobile/scrcpy by rom1v 4 years ago

Most upvoted comments

Hey @rom1v, I have succesfully tested this binary and everything is working perfectly! I now get this beautiful warning: [server] WARN: No clipboard manager, copy-paste between device and computer will not work

Thank you very much!

prat96 on Jul 20, 2020

The clipboard_manager branch is working for my android 5.1.1 device, which is rk322x based box

[ro.build.id]: [LMY49F]
[ro.build.version.release]: [5.1.1]
[ro.build.flavor]: [rk322x_echo-user]
[ro.build.version.security_patch]: [2016-04-01]

thanks @rom1v

fudongbai on Jul 11, 2020

OK, then please check how the clipboard manager is loaded by introspection:

https://github.com/Genymobile/scrcpy/blob/8b73c90427e5f31d031357c2b319512b57ef78f5/server/src/main/java/com/genymobile/scrcpy/wrappers/ServiceManager.java#L80

https://github.com/Genymobile/scrcpy/blob/8b73c90427e5f31d031357c2b319512b57ef78f5/server/src/main/java/com/genymobile/scrcpy/wrappers/ServiceManager.java#L33-L41

It might help to understand why it does not work on your product. In your case, the call to getService() returns null.

rom1v on May 28, 2020

java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Class java.lang.Object.getClass()' on a null object reference
	at com.genymobile.scrcpy.wrappers.ClipboardManager.getAddPrimaryClipChangedListener(ClipboardManager.java:99)

Wow, that manager is null, it’s weird.

On v1.13, what happens if you Ctrl+c or Ctrl+Shift+v?

rom1v on May 28, 2020