java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
Searched on Google with the first line of a JAVA stack trace?
We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.
Recommended solutions based on your search
Solutions on the web
via GitHub by wenmingvs
, 1 year agovia GitHub by wenmingvs
, 1 year agovia GitHub by wenmingvs
, 1 year agovia GitHub by wenmingvs
, 1 year agovia GitHub by wenmingvs
, 1 year agovia GitHub by wenmingvs
, 1 year agojava.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
at com.wenming.crashcachedemo.MainActivity$1.onClick(MainActivity.java:42)
at android.view.View.performClick(View.java:5197)
at android.view.View$PerformClick.run(View.java:20909)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5942)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)