java.lang.IllegalStateException: Could not execute method for android:onClick
	at androidx.appcompat.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:414)
	at android.view.View.performClick(View.java:7261)
	at android.view.View.performClickInternal(View.java:7223)
	at android.view.View.access$3800(View.java:824)
	at android.view.View$PerformClick.run(View.java:27721)
	at android.os.Handler.handleCallback(Handler.java:883)
	at android.os.Handler.dispatchMessage(Handler.java:100)
	at android.os.Looper.loop(Looper.java:238)
	at android.app.ActivityThread.main(ActivityThread.java:7824)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:981)
Caused by: java.lang.reflect.InvocationTargetException
	at java.lang.reflect.Method.invoke(Native Method)
	at androidx.appcompat.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:409)
	... 11 more
Caused by: java.lang.StackOverflowError: stack size 8192KB
	at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:649)
	at java.lang.StringBuilder.append(StringBuilder.java:203)
	at org.json.JSONStringer.string(JSONStringer.java:354)
	at org.json.JSONStringer.value(JSONStringer.java:261)
	at org.json.JSONObject.writeTo(JSONObject.java:733)
	at org.json.JSONStringer.value(JSONStringer.java:246)
	at org.json.JSONArray.writeTo(JSONArray.java:616)
	at org.json.JSONArray.toString(JSONArray.java:587)
	at java.lang.String.valueOf(String.java:2924)
	at com.entitcs.office_attendance.activities.Upload_Data.upload_subordinate_attendance(Upload_Data.java:936)
	... 13 more