java - Exception while parsing JSON using org.simple -


i creating json file , saving location. when files creating first time, there no issues. if file exists , should update existing json file in same location getting following exception:

exception:

unexpected character (-) @ position 138. @ org.json.simple.parser.yylex.yylex(unknown source) @ org.json.simple.parser.jsonparser.nexttoken(unknown source) @ org.json.simple.parser.jsonparser.parse(unknown source) @ org.json.simple.parser.jsonparser.parse(unknown source) @ nbclearn.edgate.executorservice.execservice$1.run(execservice.java:116) @  unexpected character (d) @ position 123. @ org.json.simple.parser.yylex.yylex(unknown source) @ org.json.simple.parser.jsonparser.nexttoken(unknown source) @ org.json.simple.parser.jsonparser.parse(unknown source) @ org.json.simple.parser.jsonparser.parse(unknown source) @ nbclearn.edgate.executorservice.execservice$1.run(execservice.java:116) @   unexpected token end of file @ position 0. @ org.json.simple.parser.jsonparser.parse(unknown source) @ org.json.simple.parser.jsonparser.parse(unknown source) @ nbclearn.edgate.executorservice.execservice$1.run(execservice.java:116) @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1145) @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:615) @ java.lang.thread.run(thread.java:745)

file writting:

bufferedwriter writer = new bufferedwriter(                                         new outputstreamwriter(new fileoutputstream("/users/smo/desktop/ed/"+id+".json"),                                                 "utf-8"));                                 try {                                     writer.write(jsondata);                                     }                                      system.out.println("done");                                 } {                                     writer.close();                                 }

i using org.simple libraru see if json file exists in location , else should create new file. if exists should update it.

code checking json file:

path p = paths.get("/users/smo/desktop/ed/"+id + ".json");                                 boolean exists = files.exists(p);                                 if(exists){                                 object obj = parser.parse(new filereader(                                         "/users/smo/desktop/ed/"+id + ".json"));                                 org.json.simple.jsonobject jsonobject = (org.json.simple.jsonobject) obj;

json data:

{“id1-position-backstik”: [“4289998”, "422212998", "49998", “638737”],”sum”:2a7c0d20-baf1-4c37-8ac5-eb14198eed06,”position”:1 }                                   }

can please suggest.thanks in advance.


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