java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference

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    java.lang.NullPointerException in Volley

    Stack Overflow | 5 months ago | Harin Kaklotar
    java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
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    Issue 192787 - android - NPE in URLEncoder - Android Open Source Project - Issue Tracker - Google Project Hosting

    google.com | 1 year ago
    java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
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    Post data using Volley error Occure "NetworkDispatcher.run:Unhandled exception java.lang.NullPointerException: Attempt to invoke virtual method'"

    Stack Overflow | 9 months ago | user3262596
    java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
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    Volley library NetworkDispatcher.run error

    Stack Overflow | 9 months ago | KBJ
    java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
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    Stack Overflow | 7 months ago | J.FOG
    java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference

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Root Cause Analysis

  1. java.lang.NullPointerException

    Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference

    at libcore.net.UriCodec.encode()
  2. Android
    UriCodec.encode
    1. libcore.net.UriCodec.encode(UriCodec.java:132)
    1 frame
  3. Java RT
    URLEncoder.encode
    1. java.net.URLEncoder.encode(URLEncoder.java:57)
    1 frame
  4. Android-Volley Library
    NetworkDispatcher.run
    1. com.android.volley.Request.encodeParameters(Request.java:456)
    2. com.android.volley.Request.getBody(Request.java:442)
    3. com.android.volley.toolbox.HurlStack.addBodyIfExists(HurlStack.java:236)
    4. com.android.volley.toolbox.HurlStack.setConnectionParametersForRequest(HurlStack.java:210)
    5. com.android.volley.toolbox.HurlStack.performRequest(HurlStack.java:106)
    6. com.android.volley.toolbox.BasicNetwork.performRequest(BasicNetwork.java:96)
    7. com.android.volley.NetworkDispatcher.run(NetworkDispatcher.java:110)
    7 frames