RE: java.sql.SQLException: The exception 'java.lang.NullPointerException' was thrown while evaluating an expression.

 

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 -----------------

------------------------------------------------------

 

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