java.lang.NullPointerException

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  1. 0

    Nutch on windows: ERROR crawl.Injector

    Stack Overflow | 8 months ago | Thomas Hoffmann
    java.lang.NullPointerException
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    Nutch 1.12 on Cygwin on Windows 7 - NullPointerException

    Stack Overflow | 4 months ago | Stu
    java.lang.NullPointerException
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  4. 0

    GitHub comment 617#187782782

    GitHub | 12 months ago | risdenk
    java.lang.NullPointerException
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    Hadoop - Exception in thread "main" java.lang.NullPointerException

    Stack Overflow | 2 years ago
    java.lang.NullPointerException

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Root Cause Analysis

  1. java.lang.NullPointerException

    No message provided

    at java.lang.ProcessBuilder.start()
  2. Java RT
    ProcessBuilder.start
    1. java.lang.ProcessBuilder.start(Unknown Source)
    1 frame
  3. Hadoop
    FileSystem.createNewFile
    1. org.apache.hadoop.util.Shell.runCommand(Shell.java:445)
    2. org.apache.hadoop.util.Shell.run(Shell.java:418)
    3. org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:650)
    4. org.apache.hadoop.util.Shell.execCommand(Shell.java:739)
    5. org.apache.hadoop.util.Shell.execCommand(Shell.java:722)
    6. org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:633)
    7. org.apache.hadoop.fs.FilterFileSystem.setPermission(FilterFileSystem.java:467)
    8. org.apache.hadoop.fs.ChecksumFileSystem.create(ChecksumFileSystem.java:456)
    9. org.apache.hadoop.fs.ChecksumFileSystem.create(ChecksumFileSystem.java:424)
    10. org.apache.hadoop.fs.FileSystem.create(FileSystem.java:906)
    11. org.apache.hadoop.fs.FileSystem.create(FileSystem.java:887)
    12. org.apache.hadoop.fs.FileSystem.create(FileSystem.java:849)
    13. org.apache.hadoop.fs.FileSystem.createNewFile(FileSystem.java:1149)
    13 frames
  4. Apache Nutch
    Injector.run
    1. org.apache.nutch.util.LockUtil.createLockFile(LockUtil.java:58)
    2. org.apache.nutch.crawl.Injector.inject(Injector.java:357)
    3. org.apache.nutch.crawl.Injector.run(Injector.java:467)
    3 frames
  5. Hadoop
    ToolRunner.run
    1. org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
    1 frame
  6. Apache Nutch
    Injector.main
    1. org.apache.nutch.crawl.Injector.main(Injector.java:441)
    1 frame