java.lang.NullPointerException: lock == null

Stack Overflow | yangrenhao | 2 months ago
  1. 0

    AndroidStudio Robotium web:java.lang.NullPointerException: lock == null

    Stack Overflow | 2 months ago | yangrenhao
    java.lang.NullPointerException: lock == null
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    Android Studio running JS java.lang.NullPointerException

    GitHub | 2 months ago | yangrenhao
    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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  5. 0

    GitHub comment 50#27616622

    GitHub | 3 years ago | maddoxik
    java.lang.NullPointerException: lock == null
  6. 0

    asInputStream() caused NullPointerException

    GitHub | 2 years ago | gythialy
    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:59)
    3 frames
  3. com.robotium.solo
    Solo.waitForWebElement
    1. com.robotium.solo.WebUtils.getJavaScriptAsString(WebUtils.java:354)
    2. com.robotium.solo.WebUtils.prepareForStartOfJavascriptExecution(WebUtils.java:162)
    3. com.robotium.solo.WebUtils.executeJavaScriptFunction(WebUtils.java:276)
    4. com.robotium.solo.WebUtils.executeJavaScript(WebUtils.java:238)
    5. com.robotium.solo.WebUtils.getWebElements(WebUtils.java:111)
    6. com.robotium.solo.Searcher.searchForWebElement(Searcher.java:238)
    7. com.robotium.solo.Waiter.waitForWebElement(Waiter.java:498)
    8. com.robotium.solo.Solo.waitForWebElement(Solo.java:672)
    8 frames