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 Stack Overflow by Ahmed Ezzat Salama
, 2 years ago
Attempt to invoke > virtual method 'int java.lang.String.length()' on a null object > reference
via Stack Overflow by Praviin Zurrunge
, 1 year ago
Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
via Stack Overflow by Adarsh Jayakumar
, 1 year ago
Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference 03-16 23:23:27.568 2443-2443/com.adarshjayakumar.skytype W/System.err:
via Stack Overflow by Swaroop Lal
, 2 years ago
Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
via GitHub by Arshilgenius
, 3 months ago
Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
via Stack Overflow by Unknown author, 2 years ago
Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
at java.io.StringReader.(StringReader.java:47)

Users with the same issue

19 times, 1 month ago
52 times, 3 months ago
10 times, 4 months ago
Once, 11 months ago
7 times, 1 year ago

Write tip

Know the solutions? Share your knowledge to help other developers to debug faster.