java.lang.NullPointerException: lock == null

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    Could not get smack version in SmackInitialization in Android

    Stack Overflow | 1 year ago | Sanat Pandey
    java.lang.NullPointerException: lock == null
  2. 0

    asInputStream() caused NullPointerException

    GitHub | 2 years ago | gythialy
    java.lang.NullPointerException: lock == null
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    App crashes on Loading 0bj file using min3D Framework

    Stack Overflow | 2 years ago
    java.lang.NullPointerException: lock == null
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    FTPClient and BufferedReader

    Stack Overflow | 1 year ago | Emilio Gaines
    java.lang.NullPointerException: lock == null

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Root Cause Analysis

  1. java.lang.NullPointerException

    lock == null

    at java.io.Reader.<init>()
  2. Java RT
    InputStreamReader.<init>
    1. java.io.Reader.<init>(Reader.java:64)
    2. java.io.InputStreamReader.<init>(InputStreamReader.java:122)
    3. java.io.InputStreamReader.<init>(InputStreamReader.java:57)
    3 frames
  3. Smack
    ConnectionConfiguration.<clinit>
    1. org.jivesoftware.smack.SmackInitialization.<clinit>(SmackInitialization.java:61)
    2. org.jivesoftware.smack.SmackConfiguration.getVersion(SmackConfiguration.java:96)
    3. org.jivesoftware.smack.ConnectionConfiguration.<clinit>(ConnectionConfiguration.java:38)
    3 frames
  4. com.myoneapp.chat
    MyService.onCreate
    1. com.myoneapp.chat.services.MyXMPP.initialiseConnection(MyXMPP.java:111)
    2. com.myoneapp.chat.services.MyXMPP.init(MyXMPP.java:105)
    3. com.myoneapp.chat.services.MyXMPP.<init>(MyXMPP.java:68)
    4. com.myoneapp.chat.services.MyXMPP.getInstance(MyXMPP.java:78)
    5. com.myoneapp.chat.services.MyService.onCreate(MyService.java:37)
    5 frames
  5. Android Platform
    ActivityThread.handleCreateService
    1. android.app.ActivityThread.handleCreateService(ActivityThread.java:2877)
    1 frame