java.util.ConcurrentModificationException

Pentaho BI Platform Tracking | Sulaiman Karmali | 3 years ago
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    Running the getting started transformation in samples, I got a ConcurrentModificationException. I was running trans on carte server on localhost: 2013/10/29 11:35:08 - Getting Started Transformation - Step [Read Sales Data.0] initialized flawlessly. 2013/10/29 11:35:08 - Getting Started Transformation - Step [Filter rows.0] initialized flawlessly. 2013/10/29 11:35:08 - Getting Started Transformation - Step [Value Mapper.0] initialized flawlessly. 2013/10/29 11:35:08 - Getting Started Transformation - Step [Read Postal Codes.0] initialized flawlessly. 2013/10/29 11:35:08 - Getting Started Transformation - Step [Lookup Missing Zips.0] initialized flawlessly. 2013/10/29 11:35:08 - Getting Started Transformation - Step [Prepare Field Layout.0] initialized flawlessly. 2013/10/29 11:35:08 - Getting Started Transformation - Step [Number range.0] initialized flawlessly. 2013/10/29 11:35:08 - Read Sales Data.0 - Starting to run... 2013/10/29 11:35:08 - Filter rows.0 - Starting to run... 2013/10/29 11:35:08 - Read Postal Codes.0 - Starting to run... 2013/10/29 11:35:08 - Read Postal Codes.0 - Signaling 'output done' to 1 output rowsets. 2013/10/29 11:35:08 - Read Sales Data.0 - Signaling 'output done' to 1 output rowsets. 2013/10/29 11:35:08 - Value Mapper.0 - Starting to run... 2013/10/29 11:35:08 - Read Sales Data.0 - Finished processing (I=0, O=0, R=0, W=0, U=0, E=0) 2013/10/29 11:35:08 - Read Postal Codes.0 - Finished processing (I=0, O=0, R=0, W=0, U=0, E=0) 2013/10/29 11:35:08 - Lookup Missing Zips.0 - Starting to run... 2013/10/29 11:35:08 - Prepare Field Layout.0 - Starting to run... 2013/10/29 11:35:08 - Number range.0 - Starting to run... 2013/10/29 11:35:08 - Getting Started Transformation - Transformation has allocated 7 threads and 7 rowsets. 2013/10/29 11:35:08 - Filter rows.0 - Signaling 'output done' to 2 output rowsets. Exception in thread "Getting Started Transformation - Read Postal Codes" java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:819) at java.util.ArrayList$Itr.next(ArrayList.java:791) at org.pentaho.di.trans.step.BaseStep.markStop(BaseStep.java:2899) at org.pentaho.di.trans.step.RunThread.run(RunThread.java:118) at java.lang.Thread.run(Thread.java:722) 2013/10/29 11:35:08 - Lookup Missing Zips.0 - Reading from stream [Read Postal Codes] 2013/10/29 11:35:08 - Filter rows.0 - Finished processing (I=0, O=0, R=0, W=0, U=0, E=0) 2013/10/29 11:35:08 - Lookup Missing Zips.0 - Stopped processing with empty row after 0 rows. 2013/10/29 11:35:08 - Lookup Missing Zips.0 - Signaling 'output done' to 1 output rowsets. 2013/10/29 11:35:08 - Lookup Missing Zips.0 - Finished processing (I=0, O=0, R=0, W=0, U=0, E=0) 2013/10/29 11:35:08 - Prepare Field Layout.0 - Signaling 'output done' to 1 output rowsets. 2013/10/29 11:35:08 - Prepare Field Layout.0 - Finished processing (I=0, O=0, R=0, W=0, U=0, E=0) 2013/10/29 11:35:08 - Value Mapper.0 - Signaling 'output done' to 1 output rowsets. 2013/10/29 11:35:08 - Value Mapper.0 - Finished processing (I=0, O=0, R=0, W=0, U=0, E=0) 2013/10/29 11:35:08 - Number range.0 - Signaling 'output done' to 0 output rowsets. 2013/10/29 11:35:08 - Number range.0 - Finished processing (I=0, O=0, R=0, W=0, U=0, E=0)

    Pentaho BI Platform Tracking | 3 years ago | Sulaiman Karmali
    java.util.ConcurrentModificationException
  2. 0

    Running the getting started transformation in samples, I got a ConcurrentModificationException. I was running trans on carte server on localhost: 2013/10/29 11:35:08 - Getting Started Transformation - Step [Read Sales Data.0] initialized flawlessly. 2013/10/29 11:35:08 - Getting Started Transformation - Step [Filter rows.0] initialized flawlessly. 2013/10/29 11:35:08 - Getting Started Transformation - Step [Value Mapper.0] initialized flawlessly. 2013/10/29 11:35:08 - Getting Started Transformation - Step [Read Postal Codes.0] initialized flawlessly. 2013/10/29 11:35:08 - Getting Started Transformation - Step [Lookup Missing Zips.0] initialized flawlessly. 2013/10/29 11:35:08 - Getting Started Transformation - Step [Prepare Field Layout.0] initialized flawlessly. 2013/10/29 11:35:08 - Getting Started Transformation - Step [Number range.0] initialized flawlessly. 2013/10/29 11:35:08 - Read Sales Data.0 - Starting to run... 2013/10/29 11:35:08 - Filter rows.0 - Starting to run... 2013/10/29 11:35:08 - Read Postal Codes.0 - Starting to run... 2013/10/29 11:35:08 - Read Postal Codes.0 - Signaling 'output done' to 1 output rowsets. 2013/10/29 11:35:08 - Read Sales Data.0 - Signaling 'output done' to 1 output rowsets. 2013/10/29 11:35:08 - Value Mapper.0 - Starting to run... 2013/10/29 11:35:08 - Read Sales Data.0 - Finished processing (I=0, O=0, R=0, W=0, U=0, E=0) 2013/10/29 11:35:08 - Read Postal Codes.0 - Finished processing (I=0, O=0, R=0, W=0, U=0, E=0) 2013/10/29 11:35:08 - Lookup Missing Zips.0 - Starting to run... 2013/10/29 11:35:08 - Prepare Field Layout.0 - Starting to run... 2013/10/29 11:35:08 - Number range.0 - Starting to run... 2013/10/29 11:35:08 - Getting Started Transformation - Transformation has allocated 7 threads and 7 rowsets. 2013/10/29 11:35:08 - Filter rows.0 - Signaling 'output done' to 2 output rowsets. Exception in thread "Getting Started Transformation - Read Postal Codes" java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:819) at java.util.ArrayList$Itr.next(ArrayList.java:791) at org.pentaho.di.trans.step.BaseStep.markStop(BaseStep.java:2899) at org.pentaho.di.trans.step.RunThread.run(RunThread.java:118) at java.lang.Thread.run(Thread.java:722) 2013/10/29 11:35:08 - Lookup Missing Zips.0 - Reading from stream [Read Postal Codes] 2013/10/29 11:35:08 - Filter rows.0 - Finished processing (I=0, O=0, R=0, W=0, U=0, E=0) 2013/10/29 11:35:08 - Lookup Missing Zips.0 - Stopped processing with empty row after 0 rows. 2013/10/29 11:35:08 - Lookup Missing Zips.0 - Signaling 'output done' to 1 output rowsets. 2013/10/29 11:35:08 - Lookup Missing Zips.0 - Finished processing (I=0, O=0, R=0, W=0, U=0, E=0) 2013/10/29 11:35:08 - Prepare Field Layout.0 - Signaling 'output done' to 1 output rowsets. 2013/10/29 11:35:08 - Prepare Field Layout.0 - Finished processing (I=0, O=0, R=0, W=0, U=0, E=0) 2013/10/29 11:35:08 - Value Mapper.0 - Signaling 'output done' to 1 output rowsets. 2013/10/29 11:35:08 - Value Mapper.0 - Finished processing (I=0, O=0, R=0, W=0, U=0, E=0) 2013/10/29 11:35:08 - Number range.0 - Signaling 'output done' to 0 output rowsets. 2013/10/29 11:35:08 - Number range.0 - Finished processing (I=0, O=0, R=0, W=0, U=0, E=0)

    Pentaho BI Platform Tracking | 3 years ago | Sulaiman Karmali
    java.util.ConcurrentModificationException
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  4. 0

    Console Error McMMO Dev #1086

    GitHub | 4 years ago | ghost
    java.util.ConcurrentModificationException

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Root Cause Analysis

  1. java.util.ConcurrentModificationException

    No message provided

    at java.util.ArrayList$Itr.checkForComodification()
  2. Java RT
    ArrayList$Itr.next
    1. java.util.ArrayList$Itr.checkForComodification(ArrayList.java:819)
    2. java.util.ArrayList$Itr.next(ArrayList.java:791)
    2 frames
  3. org.pentaho.di
    RunThread.run
    1. org.pentaho.di.trans.step.BaseStep.markStop(BaseStep.java:2899)
    2. org.pentaho.di.trans.step.RunThread.run(RunThread.java:118)
    2 frames
  4. Java RT
    Thread.run
    1. java.lang.Thread.run(Thread.java:722)
    1 frame