Crash socket-io-client

[Nikonov]

Crash when server emit event. Socket.io-client:0.9.0.

03-12 13:21:42.944 6958-7039/org.smartplayer.client.develop E/EventThread: Task threw exception java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference at io.socket.client.Socket.onevent(Socket.java:349) at io.socket.client.Socket.onpacket(Socket.java:303) at io.socket.client.Socket.access$100(Socket.java:19) at io.socket.client.Socket$2$2.call(Socket.java:115) at io.socket.emitter.Emitter.emit(Emitter.java:117) at io.socket.client.Manager.ondecoded(Manager.java:409) at io.socket.client.Manager.access$1600(Manager.java:22) at io.socket.client.Manager$7.call(Manager.java:385) at io.socket.emitter.Emitter.emit(Emitter.java:117) at io.socket.parser.Parser$Decoder.add(Parser.java:157) at io.socket.client.Manager.ondata(Manager.java:401) at io.socket.client.Manager.access$1000(Manager.java:22) at io.socket.client.Manager$2.call(Manager.java:352) at io.socket.emitter.Emitter.emit(Emitter.java:117) at io.socket.engineio.client.Socket.onPacket(Socket.java:521) at io.socket.engineio.client.Socket.access$1000(Socket.java:35) at io.socket.engineio.client.Socket$5.call(Socket.java:321) at io.socket.emitter.Emitter.emit(Emitter.java:117) at io.socket.engineio.client.Transport.onPacket(Transport.java:126) at io.socket.engineio.client.Transport.onData(Transport.java:118) at io.socket.engineio.client.transports.WebSocket.access$100(WebSocket.java:24) at io.socket.engineio.client.transports.WebSocket$1$2.run(WebSocket.java:71) at io.socket.thread.EventThread$2.run(EventThread.java:80) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) at java.lang.Thread.run(Thread.java:818) 03-12 13:21:42.944 6958-7039/org.smartplayer.client.develop E/AndroidRuntime: FATAL EXCEPTION: EventThread Process: org.smartplayer.client.develop, PID: 6958 java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference at io.socket.client.Socket.onevent(Socket.java:349) at io.socket.client.Socket.onpacket(Socket.java:303) at io.socket.client.Socket.access$100(Socket.java:19) at io.socket.client.Socket$2$2.call(Socket.java:115) at io.socket.emitter.Emitter.emit(Emitter.java:117) at io.socket.client.Manager.ondecoded(Manager.java:409) at io.socket.client.Manager.access$1600(Manager.java:22) at io.socket.client.Manager$7.call(Manager.java:385) at io.socket.emitter.Emitter.emit(Emitter.java:117) at io.socket.parser.Parser$Decoder.add(Parser.java:157) at io.socket.client.Manager.ondata(Manager.java:401) at io.socket.client.Manager.access$1000(Manager.java:22) at io.socket.client.Manager$2.call(Manager.java:352) at io.socket.emitter.Emitter.emit(Emitter.java:117) at io.socket.engineio.client.Socket.onPacket(Socket.java:521) at io.socket.engineio.client.Socket.access$1000(Socket.java:35) at io.socket.engineio.client.Socket$5.call(Socket.java:321) at io.socket.emitter.Emitter.emit(Emitter.java:117) at io.socket.engineio.client.Transport.onPacket(Transport.java:126) at io.socket.engineio.client.Transport.onData(Transport.java:118) at io.socket.engineio.client.transports.WebSocket.access$100(WebSocket.java:24) at io.socket.engineio.client.transports.WebSocket$1$2.run(WebSocket.java:71) at io.socket.thread.EventThread$2.run(EventThread.java:80) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) at java.lang.Thread.run(Thread.java:818)

[gizmeondev]

any suggestion regarding this issue

[rameshkec85]

@gizmeondev Do u have any solution ?

[RomanHiden]

I am affected as well.

[faizalmp]

I have the same issue. Any solution?

[RomanHiden]

@faizalmp for me it was due to passing null as socketId .something like that. but still its not handled properly by the library

[iagormoraes]

the lib crashes in the emit event by sending or receiving(not sure), if you add a null in JSONArray it will crash, but if you wrap the array inside JSONObject it works. so Instead of sending [null, ....], send as {data: [null, ...]}

UPDATE: if you emit from server in the following cases below will throw the exception:

• socket.emit(null)
• socket.emit("some_event", [null])
• socket.emit("some_event", [null, 1, "1", {...}, [..., null]])

[darrachequesne]

For future readers:

This should be fixed by e8ffe9d, which was included in version 2.0.1.

This commit was also backported to the 1.x branch, and included in version 1.0.2.

Please reopen if needed.