1. Jean-Luc Picard Avatar Jean-Luc Picard
  2. Nxt
  3. nxt-public
  4. Issues

Generating block error

Issue #5 resolved
Former user created an issue

This happens so often:

[2014-01-13 23:32:54.486] Nxt started successfully. [2014-01-14 05:51:21.423] Generated an incorrect block. Waiting for the next one ... [2014-01-14 05:51:25.482] Generated an incorrect block. Waiting for the next one ... [2014-01-14 05:51:54.527] Re-scanning blockchain... [2014-01-14 05:52:24.621] ...Done [2014-01-14 11:05:13.300] Error verifying block generation signature java.lang.NullPointerException [2014-01-14 11:05:13.301] Generated an incorrect block. Waiting for the next one ... [2014-01-14 11:05:41.160] Re-scanning blockchain... [2014-01-14 11:05:59.361] Generated an incorrect block. Waiting for the next one ... [2014-01-14 11:06:00.365] Generated an incorrect block. Waiting for the next one ... [2014-01-14 11:06:10.368] ...Done [2014-01-14 11:07:20.838] Re-scanning blockchain... [2014-01-14 11:07:51.239] ...Done

Can you explain what is going on? Until now I cannot catch how to forge a block, never succeed in doing this.

Comments (4)

  2. NikLan

    This problem was in previous, non-experimental versions.

    UPD: just got similar error. Here is full log:

    [2014-01-14 23:10:48.152] Error verifying block generation signature java.lang.NullPointerException at Nxt$Account.getEffectiveBalance(Nxt.java:499) at Nxt$Block.verifyGenerationSignature(Nxt.java:1941) at Nxt$Account.generateBlock(Nxt.java:467) at Nxt$8.run(Nxt.java:6555) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown Source)

        at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.

    access$301(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask. run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) [2014-01-14 23:10:48.153] Generated an incorrect block. Waiting for the next one ... [2014-01-14 23:10:49.154] DEBUG: Error in block generation thread java.lang.NullPointerException at Nxt$Account.getEffectiveBalance(Nxt.java:499) at Nxt$8.run(Nxt.java:6506) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown Source)

        at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.

    access$301(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask. run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) [2014-01-14 23:10:50.194] Generated an incorrect block. Waiting for the next one ... [2014-01-14 23:10:51.195] DEBUG: Error in block generation thread java.lang.NullPointerException at Nxt$Account.getEffectiveBalance(Nxt.java:499) at Nxt$8.run(Nxt.java:6506) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown Source)

        at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.

    access$301(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask. run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) [2014-01-14 23:10:52.226] Error verifying block generation signature java.lang.NullPointerException at Nxt$Account.getEffectiveBalance(Nxt.java:499) at Nxt$Block.verifyGenerationSignature(Nxt.java:1941) at Nxt$Account.generateBlock(Nxt.java:467) at Nxt$8.run(Nxt.java:6555) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown Source)

        at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.

    access$301(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask. run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) [2014-01-14 23:10:52.244] Generated an incorrect block. Waiting for the next one ... [2014-01-14 23:10:53.246] DEBUG: Error in block generation thread java.lang.NullPointerException at Nxt$Account.getEffectiveBalance(Nxt.java:499) at Nxt$8.run(Nxt.java:6506) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown Source)

        at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.

    access$301(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask. run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) [2014-01-14 23:10:54.248] DEBUG: Error in block generation thread java.lang.NullPointerException at Nxt$Account.getEffectiveBalance(Nxt.java:499) at Nxt$8.run(Nxt.java:6506) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown Source)

        at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.

    access$301(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask. run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) [2014-01-14 23:10:55.250] DEBUG: Error in block generation thread java.lang.NullPointerException at Nxt$Account.getEffectiveBalance(Nxt.java:499) at Nxt$8.run(Nxt.java:6506) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown Source)

        at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.

    access$301(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask. run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) [2014-01-14 23:11:08.268] DEBUG: Error in block generation thread java.lang.NullPointerException at Nxt$Account.getEffectiveBalance(Nxt.java:489) at Nxt$8.run(Nxt.java:6506) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown Source)

        at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.

    access$301(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask. run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) [2014-01-14 23:11:09.270] DEBUG: Error in block generation thread java.lang.NullPointerException at Nxt$Account.getEffectiveBalance(Nxt.java:489) at Nxt$8.run(Nxt.java:6506) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown Source)

        at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.

    access$301(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask. run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) [2014-01-14 23:11:10.272] DEBUG: Error in block generation thread java.lang.NullPointerException at Nxt$Account.getEffectiveBalance(Nxt.java:499) at Nxt$8.run(Nxt.java:6506) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown Source)

        at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.

    access$301(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask. run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) [2014-01-14 23:11:11.274] DEBUG: Error in block generation thread java.lang.NullPointerException at Nxt$Account.getEffectiveBalance(Nxt.java:499) at Nxt$8.run(Nxt.java:6506) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown Source)

        at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.

    access$301(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask. run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) [2014-01-14 23:11:12.275] DEBUG: Error in block generation thread java.lang.NullPointerException at Nxt$Account.getEffectiveBalance(Nxt.java:499) at Nxt$8.run(Nxt.java:6506) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(Unknown Source)

        at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.

    access$301(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask. run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) [2014-01-14 23:11:12.342] Re-scanning blockchain... [2014-01-14 23:11:37.451] ...Done [2014-01-14 23:37:51.608] DEBUG: Error in block generation thread java.lang.NullPointerException [2014-01-14 23:37:52.609] DEBUG: Error in block generation thread java.lang.NullPointerException [2014-01-14 23:37:53.610] DEBUG: Error in block generation thread java.lang.NullPointerException [2014-01-14 23:37:54.610] DEBUG: Error in block generation thread java.lang.NullPointerException [2014-01-14 23:37:55.611] DEBUG: Error in block generation thread java.lang.NullPointerException [2014-01-14 23:37:56.612] DEBUG: Error in block generation thread java.lang.NullPointerException [2014-01-14 23:37:57.613] DEBUG: Error in block generation thread java.lang.NullPointerException [2014-01-14 23:37:58.614] DEBUG: Error in block generation thread java.lang.NullPointerException [2014-01-14 23:38:11.629] DEBUG: Error in block generation thread java.lang.NullPointerException [2014-01-14 23:38:12.630] DEBUG: Error in block generation thread java.lang.NullPointerException [2014-01-14 23:38:13.631] DEBUG: Error in block generation thread java.lang.NullPointerException [2014-01-14 23:38:14.632] DEBUG: Error in block generation thread java.lang.NullPointerException [2014-01-14 23:38:15.633] DEBUG: Error in block generation thread java.lang.NullPointerException [2014-01-14 23:38:15.963] Re-scanning blockchain... [2014-01-14 23:38:41.172] ...Done

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Type
bug
Priority
major
Status
resolved
Component
Java Server
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