Also please find the output of sysinfo:
------------------ Java Information
------------------
Java Version: 1.6.0_01
Java Vendor: Sun
Microsystems Inc.
Java home:
C:\Java\jdk1.6.0_01\jre
Java classpath:
.\config;.\lib\activation.jar;.\lib\aperture-1.0.1-beta.jar;.\lib\bcmail-jdk14-132.jar;.\lib\bcprov-jdk14-132.jar;.\lib\castor-0.9.3.21-xml.jar;.\lib\checkstyle-all-4.2.jar;.\lib\cjkanalyzer.jar;.\lib\commons-beanutils.jar;.\lib\commons-collections-3.0.jar;.\lib\commons-dbcp-1.2.1.jar;.\lib\commons-digester.jar;.\lib\commons-fileupload.jar;.\lib\commons-lang-2.0.jar;.\lib\commons-logging.jar;.\lib\commons-net-1.4.1.jar;.\lib\commons-pool-1.2.jar;.\lib\commons-validator.jar;.\lib\app.jar;.\lib\app_13.jar;.\lib\appsync.jar;.
\lib\derby.jar;.\lib\derbyclient.jar;.\lib\derbynet.jar;.\lib\derbytools.jar;.\lib\displaytag-1.0-rc1.jar;.\lib\FontBox-0.1.0-dev.jar;.\lib\jakarta-regexp-1.2.jar;.\lib\javaee.jar;.\lib\jcharset.jar;.\lib\jcifs-1.2.17.jar;.\lib\jcommon-0.9.6.jar;.\lib\jfreechart-0.9.21.jar;.\lib\jtnef.jar;.\lib\junit.jar;.\lib\ldap.jar;.\lib\log4j-1.2.8.jar;.\lib\lucene-core-2.2.0.jar;.\lib\lucene-highlighter.jar;.\lib\mail.jar;.\lib\mysql-connector-java-3.0.9-stable-bin.jar;.\lib\openrdf-rdf2go-2.0.0-beta6.jar;.\lib\openrdf-sesame-2.0-beta6-onejar.jar;.\lib\org.semweb4j.rdf2go.api_4.4.7.jar;.\lib\org.semweb4j.rdf2go.impl.base_4.4.6.jar;.\lib\pd4ml.jar;.\lib\PDFBox-0.7.3.jar;.\lib\poi-3.0.1-FINAL-20070705.jar;.\lib\quartz-1.5.2.jar;.\lib\slf4j-api-1.3.0.jar;.\lib\slf4j-simple-1.3.0.jar;.\lib\SNMP4J.jar;.\lib\ss_css2.jar;.\lib\struts.jar;.\lib\textmining_v1.jar;.\lib\tm-extractors-0.4.jar;.\lib\truezip-6.jar;.\lib\xerces-2_6_2.jar;.\lib\windows\FPLibrary.jar
OS
name: Windows XP
OS architecture: x86
OS version: 5.1
Java user name: vibhuti
Java user home: C:\Documents and Settings\vibhuti
Java user dir: D:\projects\src\app\dist\app
java.specification.name: Java Platform API
Specification
java.specification.version: 1.6
--------- Derby
Information --------
JRE - JDBC: Java SE 6 - JDBC 4.0
[D:\projects\src\app\dist\app\lib\derby.jar]
10.3.1.4 - (561794)
[D:\projects\src\app\dist\app\lib\derbytools.jar]
10.3.1.4 - (5617
94)
[D:\projects\src\app\dist\app\lib\derbynet.jar]
10.3.1.4 - (561794
)
[D:\projects\src\app\dist\app\lib\derbyclient.jar]
10.3.1.4 - (561
794)
------------------------------------------------------
----------------- Locale Information
-----------------
------------------------------------------------------
From: vibhuti
[mailto:vibhuti.gupta@...]
Sent: Tuesday, July 01, 2008 2:41
PM
To: 'derby-user@...'
Subject: java.sql.SQLException:
The exception 'java.lang.NullPointerException' was thrown while evaluating an
expression.
Hi
Following exception occurs
while running our application with embedded derby database. The application
uses multithreading. This exception occurs while insert query is executed. The
insert query is run using JDBC:
insert into sign (sign,
month, day, offset, digest) values (?,?,?,?,?).
The table for which insert
query is fired is:
create table sign(ID INTEGER NOT NULL
GENERATED ALWAYS AS IDENTITY PRIMARY KEY, sign varchar(32), month char(6) not
null, day char(2) not null, offset bigint not null, digest varchar(32) for bit
data not null)
There are multiple threads inserting data in
database. I tried to search a lot on net but could not find any solution.
We’re using derby 10.3.1.4. Not sure about the root cause. It will be
great if anybody provides some solution because it is creating lot of problems
in our application.
-------------------------------------------------------------------------------------------------------------
Caused by: java.sql.SQLException: The exception
'java.lang.NullPointerException' was thrown while evaluating an expression.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown
Source)
at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.Util.seeNextException(Unknown Source)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown
Source)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown
Source)
at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown
Source)
at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown
Source)
at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown
Source)
at
org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStatement(Unknown
Source)
at
org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeUpdate(Unknown Source)
at
org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:101)
at
org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:101)
at src.app.database.derby.Derby.insertData(Derby.java:132)
... 17 more
Caused by: java.sql.SQLException: The exception
'java.lang.NullPointerException' was thrown while evaluating an expression.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(Unknown
Source)
... 30 more
Caused by: java.sql.SQLException: Java exception: ':
java.lang.NullPointerException'.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(Unknown
Source)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(Unknown
Source)
at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.Util.javaException(Unknown Source)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown
Source)
... 27 more
Caused by: java.lang.NullPointerException
at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(Unknown
Source)
at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(Unknown
Source)
at org.apache.derby.impl.store.raw.xact.Xact.openContainer(Unknown
Source)
at
org.apache.derby.impl.store.access.conglomerate.OpenConglomerate.init(Unknown
Source)
at org.apache.derby.impl.store.access.heap.Heap.open(Unknown Source)
at
org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(Unknown
Source)
at
org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(Unknown
Source)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getSetAutoincrementValue(Unknown
Source)
at
org.apache.derby.impl.sql.execute.InsertResultSet.getSetAutoincrementValue(Unknown
Source)
at
org.apache.derby.impl.sql.execute.BaseActivation.getSetAutoincrementValue(Unknown
Source)
at
org.apache.derby.exe.acd89d8024x0119xf710x52e1x000002ea2ea00.e0(Unknown Source)
at org.apache.derby.impl.services.reflect.DirectCall.invoke(Unknown
Source)
at
org.apache.derby.impl.sql.execute.RowResultSet.getNextRowCore(Unknown Source)
at
org.apache.derby.impl.sql.execute.NormalizeResultSet.getNextRowCore(Unknown
Source)
at
org.apache.derby.impl.sql.execute.DMLWriteResultSet.getNextRowCore(Unknown
Source)
at org.apache.derby.impl.sql.execute.InsertResultSet.open(Unknown
Source)
at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown
Source)
... 23 more
----------------------------------------------------------------------------------
Regards
Vibhuti
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