Fatal Exception: java.util.ConcurrentModificationException

[anbarasuthresnathan]

I am getting the below mentioned error frequently while I am using in the application and I am using the version io.socket:socket.io-client:0.7.0.

Fatal Exception: java.util.ConcurrentModificationException
at java.util.ArrayList$ArrayListIterator.next(ArrayList.java:573)
at java.util.AbstractCollection.toString(AbstractCollection.java:372)
at org.json.JSONStringer.value(JSONStringer.java:252)
at org.json.JSONObject.writeTo(JSONObject.java:720)
at org.json.JSONStringer.value(JSONStringer.java:237)
at org.json.JSONObject.writeTo(JSONObject.java:720)
at org.json.JSONStringer.value(JSONStringer.java:237)
at org.json.JSONArray.writeTo(JSONArray.java:613)
at org.json.JSONArray.toString(JSONArray.java:585)
at java.lang.StringBuilder.append(StringBuilder.java:202)
at io.socket.parser.Parser$Encoder.encodeAsString(Parser.java:116)
at io.socket.parser.Parser$Encoder.encode(Parser.java:85)
at io.socket.client.Manager.packet(Manager.java:461)
at io.socket.client.Socket.packet(Socket.java:264)
at io.socket.client.Socket.access$1100(Socket.java:19)
at io.socket.client.Socket$5.run(Socket.java:201)
at io.socket.thread.EventThread$2.run(EventThread.java:75)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)

[mishasrb]

Hi @anbarasuthresnathan, were you able to fix this? I'm getting the same error in 1.0.0...

[darrachequesne]

Closed due to inactivity, please reopen if needed.

[malik082009]

I faced similar issue
Fatal Exception: java.util.ConcurrentModificationException at java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:757) at java.util.LinkedHashMap$LinkedKeyIterator.next(LinkedHashMap.java:780) at io.socket.hasbinary.HasBinary._hasBinary(HasBinary.java:47) at io.socket.hasbinary.HasBinary._hasBinary(HasBinary.java:39) at io.socket.hasbinary.HasBinary.hasBinary(HasBinary.java:18) at io.socket.parser.IOParser$Encoder.encode(IOParser.java:27) at io.socket.client.Manager.packet(Manager.java:412) at io.socket.client.Socket.packet(Socket.java:230) at io.socket.client.Socket.access$1000(Socket.java:18) at io.socket.client.Socket$6.run(Socket.java:219) at io.socket.thread.EventThread.exec(EventThread.java:55) at io.socket.client.Socket.emit(Socket.java:198) at io.socket.client.Socket$5.run(Socket.java:183) at io.socket.thread.EventThread$2.run(EventThread.java:80) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) at java.lang.Thread.run(Thread.java:923)

   I am using:
   `implementation('io.socket:socket.io-client:2.0.1') {
    exclude group: 'org.json', module: 'json'
}`