Hi,

Did you try with the latest version?

Regards,
Thomas


On Tuesday, February 21, 2017, Дмитрий Моряков <[email protected]> wrote:

> Hi.
> Faced to the common problem of NullPointerException on opening database
> after a forced stop.
>
> Configuration:
> 1)Win 7 x64
> 2) Java 7
> 3) EclipseLink 2.6
> 4) H2 1.4.190 via Maven
> 5) Program that writes and reads fro/from db about 1 times per minute
>
> Steps to reproduce:
> 1) try to kill all javaw processes OR try to reboot or poweroff the machine
> 2) try to run programm normally
>
> In the very beginning the program on the common SELECT fails with
>
> 2017-02-21 10:01:51,262 ERROR - general error
> javax.persistence.PersistenceException: Exception [EclipseLink-4002] (
> Eclipse Persistence Services - 2.6.0.v20150309-bf26070): org.eclipse.
> persistence.exceptions.DatabaseException
> Internal Exception: org.h2.jdbc.JdbcSQLException: ?????????? ??????:
> "java.lang.NullPointerException"
> General error: "java.lang.NullPointerException"; SQL statement:
> SELECT DISTINCT t1.ID, t1.PROBEDATETIME, t1.STATUS, t1.TYPE, t1.
> CONTROLPOINT_ID, t1.USER_ID, t0.ID, t0.ACTIVE, t0.ALARM, t0.CALL, t0.
> CURRENTNORMATIVELOWERBOUND, t0.CURRENTNORMATIVEUPPERBOUND, t0.DECIMALVALUE
> , t0.STATUSVALUE, t0.STRINGVALUE, t0.PROBE_ID, t0.PARAMETER_ID FROM
> PROBE t1 LEFT OUTER JOIN PROBEPARAMETERRESULT t0 ON (t0.PROBE_ID = t1.ID)
>  WHERE ((t1.PROBEDATETIME >= ?) AND (t1.PROBEDATETIME < ?)) ORDER BY 
> t1.PROBEDATETIME
> DESC [50000-190]
>     at org.h2.message.DbException.getJdbcSQLException(DbException.java:345
> )
>     at org.h2.message.DbException.get(DbException.java:168)
>     at org.h2.message.DbException.convert(DbException.java:295)
>     at org.h2.command.Command.executeQuery(Command.java:208)
>     at org.h2.server.TcpServerThread.process(TcpServerThread.java:320)
>     at org.h2.server.TcpServerThread.run(TcpServerThread.java:159)
>     at java.lang.Thread.run(Unknown Source)
> Caused by: java.lang.NullPointerException
>     at org.h2.value.Value.compareTo(Value.java:945)
>     at org.h2.engine.Database.areEqual(Database.java:333)
>     at org.h2.result.ResultTempTable.find(ResultTempTable.java:307)
>     at org.h2.result.ResultTempTable.addRow(ResultTempTable.java:151)
>     at org.h2.result.ResultTempTable.addRows(ResultTempTable.java:170)
>     at org.h2.result.LocalResult.addRow(LocalResult.java:289)
>     at org.h2.command.dml.Select.queryFlat(Select.java:543)
>     at org.h2.command.dml.Select.queryWithoutCache(Select.java:643)
>     at org.h2.command.dml.Query.query(Query.java:322)
>     at org.h2.command.dml.Query.query(Query.java:290)
>     at org.h2.command.dml.Query.query(Query.java:36)
>     at org.h2.command.CommandContainer.query(CommandContainer.java:90)
>     at org.h2.command.Command.executeQuery(Command.java:196)
>     ... 3 more
>
> Error Code: 50000
>
> If we try to open the DB in DBeaver or Squirrel it opens, but fails on the
> same query with the same error.
> So I belive it's not a problem with JPA or Java code,
>
> We tried different configs: TCP, embedded mode, RETENTION_TIME=0,
> WRITE_DELAY=0 - still the same
>
> The issue raises only after forced shutdown or when db process was killed.
> On clean database and clean exit everything works as expected.
>
> The solution to clear 'undoLog', provided here, does not work for us (
>
> Any thoughts will be highly appreciated.
> Thanks in advance.
> --
> Dmitry
>
>
>
>
>
>
>
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