android - RecyclerView error ConcurrentModificationException only API 23 & API 26 -


i concurrentmodificationexception in recyclerview, in apis 23 & 26, how can bypass this? recyclerview setup:

private void setuprecyclerview() {      int maxindex = 0;     if (game.size() < 3) {         maxindex = game.size();     } else if (game.size() >= 3) {         maxindex = 3;     }     recyclerview = findviewbyid(r.id.home_recycler_view);     adapter = new gamecardlistminiadapter(this, game.sublist(0, maxindex));     recyclerview.setadapter(adapter);     linearlayoutmanager linearlayoutmanager = new linearlayoutmanager(activityhome.this);     linearlayoutmanager.setorientation(linearlayoutmanager.horizontal);     recyclerview.sethasfixedsize(true);     recyclerview.setlayoutmanager(linearlayoutmanager);     recyclerview.setitemanimator(new defaultitemanimator()); }

after manipulate data game, call recyclerview.swapadapter(adapter, true); , error, in afore mentioned apis, in rest of apis api 15 works fine. stacktrace api 23:

e/surface: getslotfrombufferlocked: unknown buffer: 0xa0d2a5a0 d/androidruntime: shutting down vm e/androidruntime: fatal exception: main process: com.example.racu.cardgame, pid: 26900 java.util.concurrentmodificationexception     @ java.util.abstractlist$subabstractlist.size(abstractlist.java:360)     @ com.example.racu.cardgame.adapters.cardgamelistminiadapter.getitemcount(cardgamelistminiadapter.java:68)     @ android.support.v7.widget.recyclerview.dispatchlayoutstep1(recyclerview.java:3603)     @ android.support.v7.widget.recyclerview.onmeasure(recyclerview.java:3103)     @ android.view.view.measure(view.java:18788)     @ android.support.v4.widget.nestedscrollview.measurechildwithmargins(nestedscrollview.java:1446)     @ android.widget.framelayout.onmeasure(framelayout.java:194)     @ android.support.v4.widget.nestedscrollview.onmeasure(nestedscrollview.java:512)     @ android.view.view.measure(view.java:18788)     @ android.support.constraint.constraintlayout.internalmeasurechildren(constraintlayout.java:934)     @ android.support.constraint.constraintlayout.onmeasure(constraintlayout.java:973)     @ android.view.view.measure(view.java:18788)     @ android.support.constraint.constraintlayout.internalmeasurechildren(constraintlayout.java:934)     @ android.support.constraint.constraintlayout.onmeasure(constraintlayout.java:973)     @ android.view.view.measure(view.java:18788)     @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:5951)     @ android.widget.linearlayout.measurechildbeforelayout(linearlayout.java:1465)     @ android.widget.linearlayout.measurevertical(linearlayout.java:748)     @ android.widget.linearlayout.onmeasure(linearlayout.java:630)     @ android.view.view.measure(view.java:18788)     @ android.support.v4.widget.drawerlayout.onmeasure(drawerlayout.java:1060)     @ android.view.view.measure(view.java:18788)     @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:5951)     @ android.widget.framelayout.onmeasure(framelayout.java:194)     @ android.support.v7.widget.contentframelayout.onmeasure(contentframelayout.java:139)     @ android.view.view.measure(view.java:18788)     @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:5951)     @ android.widget.linearlayout.measurechildbeforelayout(linearlayout.java:1465)     @ android.widget.linearlayout.measurevertical(linearlayout.java:748)     @ android.widget.linearlayout.onmeasure(linearlayout.java:630)     @ android.view.view.measure(view.java:18788)     @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:5951)     @ android.widget.framelayout.onmeasure(framelayout.java:194)     @ android.view.view.measure(view.java:18788)     @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:5951)     @ android.widget.linearlayout.measurechildbeforelayout(linearlayout.java:1465)     @ android.widget.linearlayout.measurevertical(linearlayout.java:748)     @ android.widget.linearlayout.onmeasure(linearlayout.java:630)     @ android.view.view.measure(view.java:18788)     @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:5951)     @ android.widget.framelayout.onmeasure(framelayout.java:194)     @ com.android.internal.policy.phonewindow$decorview.onmeasure(phonewindow.java:2643)     @ android.view.view.measure(view.java:18788)     @ android.view.viewrootimpl.performmeasure(viewrootimpl.java:2100)     @ android.view.viewrootimpl.measurehierarchy(viewrootimpl.java:1216)     @ android.view.viewrootimpl.performtraversals(viewrootimpl.java:1452)     @ android.view.viewrootimpl.dotraversal(viewrootimpl.java:1107)     @ android.view.viewrootimpl$traversalrunnable.run(viewrootimpl.java:6013)     @ android.view.choreographer$callbackrecord.run(choreographer.java:858)     @ android.view.choreographer.docallbacks(choreographer.java:670)     @ android.view.choreographer.doframe(choreographer.java:606)     @ android.view.choreographer$framedisplayeventreceiver.run(choreographer.java:844)     @ android.os.handler.handlecallback(handler.java:739)     @ android.os.handler.dispatchmessage(handler.java:95)     @ android.os.looper.loop(looper.java:148)     @ android.app.activitythread.main(activitythread.java:5417)     @ java.lang.reflect.method.invoke(native method)     @ com.android.internal.os.zygot

this api 26:

d/egl_emulation: eglmakecurrent: 0x9d2e70a0: ver 2 0 (tinfo 0xa8e8b510) d/androidruntime: shutting down vm e/androidruntime: fatal exception: main process: com.example.racu.cardgame, pid: 4691 java.util.concurrentmodificationexception     @ java.util.arraylist$sublist.size(arraylist.java:1057)     @ com.example.racu.cardgame.adapters.cardgamelistminiadapter.getitemcount(cardgamelistminiadapter.java:68)     @ android.support.v7.widget.recyclerview.dispatchlayoutstep1(recyclerview.java:3603)     @ android.support.v7.widget.recyclerview.onmeasure(recyclerview.java:3103)     @ android.view.view.measure(view.java:21998)     @ android.support.v4.widget.nestedscrollview.measurechildwithmargins(nestedscrollview.java:1446)     @ android.widget.framelayout.onmeasure(framelayout.java:185)     @ android.support.v4.widget.nestedscrollview.onmeasure(nestedscrollview.java:512)     @ android.view.view.measure(view.java:21998)     @ android.support.constraint.constraintlayout.internalmeasurechildren(constraintlayout.java:934)     @ android.support.constraint.constraintlayout.onmeasure(constraintlayout.java:973)     @ android.view.view.measure(view.java:21998)     @ android.support.constraint.constraintlayout.internalmeasurechildren(constraintlayout.java:934)     @ android.support.constraint.constraintlayout.onmeasure(constraintlayout.java:973)     @ android.view.view.measure(view.java:21998)     @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:6580)     @ android.widget.linearlayout.measurechildbeforelayout(linearlayout.java:1514)     @ android.widget.linearlayout.measurevertical(linearlayout.java:806)     @ android.widget.linearlayout.onmeasure(linearlayout.java:685)     @ android.view.view.measure(view.java:21998)     @ android.support.v4.widget.drawerlayout.onmeasure(drawerlayout.java:1060)     @ android.view.view.measure(view.java:21998)     @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:6580)     @ android.widget.framelayout.onmeasure(framelayout.java:185)     @ android.support.v7.widget.contentframelayout.onmeasure(contentframelayout.java:139)     @ android.view.view.measure(view.java:21998)     @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:6580)     @ android.widget.linearlayout.measurechildbeforelayout(linearlayout.java:1514)     @ android.widget.linearlayout.measurevertical(linearlayout.java:806)     @ android.widget.linearlayout.onmeasure(linearlayout.java:685)     @ android.view.view.measure(view.java:21998)     @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:6580)     @ android.widget.framelayout.onmeasure(framelayout.java:185)     @ android.view.view.measure(view.java:21998)     @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:6580)     @ android.widget.linearlayout.measurechildbeforelayout(linearlayout.java:1514)     @ android.widget.linearlayout.measurevertical(linearlayout.java:806)     @ android.widget.linearlayout.onmeasure(linearlayout.java:685)     @ android.view.view.measure(view.java:21998)     @ android.view.viewgroup.measurechildwithmargins(viewgroup.java:6580)     @ android.widget.framelayout.onmeasure(framelayout.java:185)     @ com.android.internal.policy.decorview.onmeasure(decorview.java:721)     @ android.view.view.measure(view.java:21998)     @ android.view.viewrootimpl.performmeasure(viewrootimpl.java:2410)     @ android.view.viewrootimpl.measurehierarchy(viewrootimpl.java:1498)     @ android.view.viewrootimpl.performtraversals(viewrootimpl.java:1751)     @ android.view.viewrootimpl.dotraversal(viewrootimpl.java:1386)     @ android.view.viewrootimpl$traversalrunnable.run(viewrootimpl.java:6733)     @ android.view.choreographer$callbackrecord.run(choreographer.java:911)     @ android.view.choreographer.docallbacks(choreographer.java:723)     @ android.view.choreographer.doframe(choreographer.java:658)     @ android.view.choreographer$framedisplayeventreceiver.run(choreographer.java:897)     @ android.os.handler.handlecallback(handler.java:789)     @ android.os.handler.dispatchmessage(handler.java:98)     @ android.os.looper.loop(looper.java:164)     @ android.app.activitythread.main(activitythread.java:6541)     @ java.lang.reflect.method.invoke(native method) 08-14 18:50:44.793 4691-4691/com.example.racu.cardgame e/androidruntime:     @ com.android.internal.os.zygote$methodandargscaller.run(zygote.java:240)     @ com.android.internal.os.zygoteinit.main(zygoteinit.java:767)

tried make work creating game.sublist outside,with for loop instead of sublist, didn't crash, swapadapter wasn't being called , strange thing is working wonderful in phone, no crashes , expected behavior.

i really,really apreciate light. regards ne0r@cu

try 

recyclerview.layoutmanager layoutmanager = new linearlayoutmanager(this);

instead of :

linearlayoutmanager linearlayoutmanager = new linearlayoutmanager(activityhome.this);

then same thing ext

 rc.sethasfixedsize(false);//only use fixed ammount             rc.setlayoutmanager(layoutmanager);             rc.setadapter(dataitemadapter);

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