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  1. Derby
  2. DERBY-6442

NPE when loading optional tools from multiple threads

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Duplicate
    • 10.10.1.1
    • None
    • Tools
    • None
    • Normal
    • Repro attached

    Description

      When I try to load the foreignViews tool from two threads simultaneously, I see a NullPointerException in Java5SystemProcedures.SYSCS_REGISTER_TOOL.

      java.lang.NullPointerException
      at org.apache.derby.catalog.Java5SystemProcedures.SYSCS_REGISTER_TOOL(Java5SystemProcedures.java:98)
      at org.apache.derby.exe.ac504bc13bx0143x44f5x9203x000006cb3ed80.g0(Unknown Source)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:606)
      at org.apache.derby.impl.services.reflect.ReflectMethod.invoke(ReflectMethod.java:46)
      at org.apache.derby.impl.sql.execute.CallStatementResultSet.open(CallStatementResultSet.java:75)
      at org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(GenericPreparedStatement.java:439)
      at org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPreparedStatement.java:320)
      at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedStatement.java:1337)
      at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStatement(EmbedPreparedStatement.java:1709)
      at org.apache.derby.impl.jdbc.EmbedPreparedStatement.execute(EmbedPreparedStatement.java:1394)
      at ForeignViewMT$Worker.run(ForeignViewMT.java:31)

      Attachments

        1. ForeignViewMT.java
          1 kB
          Knut Anders Hatlen

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              Unassigned Unassigned
              knutanders Knut Anders Hatlen
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                Updated:
                Resolved: