#127 Unexpected error during load of: com.mchange.v2.c3p0.jboss.C3P0PooledDataSource, msg=Bad version number in .class file

[appsdaily77]

Hi,

I am trying to configure c3p0 in my web application but while restarting the jboss I am getting the following error.

org.jboss.deployment.DeploymentInfo@df0ab516 { url=file:/D:/server/jboss-4.2.3.GA/server/default/deploy/c3p0-service.xml }
deployer: org.jboss.deployment.SARDeployer@c72243
status: Deployment FAILED reason: Unexpected error during load of: com.mchange.v2.c3p0.jboss.C3P0PooledDataSource, msg=Bad version number in .class file; - nested
throwable: (java.lang.ClassNotFoundException: Unexpected error during load of: com.mchange.v2.c3p0.jboss.C3P0PooledDataSource, msg=Bad version number in
.class file)
state: FAILED
watch: file:/D:/server/jboss-4.2.3.GA/server/default/deploy/c3p0-service.xml

My application environment is
Server : jboss-4.2.3.GA
jdk : jdk 1.5.16
c3p0 jars : c3p0-0.9.5-pre5.jar / mchange-commons-java-0.2.6.2.jar
mySQL connector jar : mysql-connector-java-3.1.11.jar

c3p0-service.xml :

<server>
<mbean code="com.mchange.v2.c3p0.jboss.C3P0PooledDataSource" name="jboss:service=C3P0PooledDataSource">
<attribute name="JndiName">java:SCMDS</attribute>
<attribute name="JdbcUrl">jdbc:mysql://127.0.0.1:3306/db_name</attribute>
<attribute name="DriverClass">com.mysql.jdbc.Driver</attribute>
<attribute name="User">root</attribute>
<attribute name="Password">password</attribute>
<attribute name="AcquireIncrement">5</attribute>
<attribute name="AutomaticTestTable">connectionTestTable</attribute>
<attribute name="IdleConnectionTestPeriod">600</attribute>
<attribute name="InitialPoolSize">10</attribute>
<attribute name="MaxConnectionAge">600</attribute>
<attribute name="MaxIdleTime">300</attribute>
<attribute name="MaxPoolSize">20</attribute>
<attribute name="MinPoolSize">10</attribute>
<depends>jboss:service=Naming</depends>
</mbean>
</server>

I am not able to figure out where I am making mistake ,I have copied the c3p0 jar in jboss/server/default/lib and c3p0-service.xml in jboss/server/default/deploy/ , as mentioned
In the link : ../c3p0-c3p0-0.9.5-pre5/src/doc/index.html

I will be very grateful if you can help me in sorting out this error.(Attached is the error stack trace file)

Regards
Kiran

[appsdaily77]

attached is the c3p0-service.xml

[appsdaily77]

attached is the c3p0-service.xml

[Steve Waldman]

hi,

c3p0-0.9.5.x is compiled for JDK6+. under jdk 1.5.16, you’ll need to back-off to 0.9.2.1, alas.

smiles,
   steve

On May 2, 2014, at 7:14 AM, appsdaily77 appsdaily77@users.sf.net wrote:

attached is the c3p0-service.xml

Attachment: c3p0-service.xml (1.0 kB; text/xml)

[bugs:#127] Unexpected error during load of: com.mchange.v2.c3p0.jboss.C3P0PooledDataSource, msg=Bad version number in .class file

Status: open
Group: v1.0 (example)
Created: Fri May 02, 2014 02:05 PM UTC by appsdaily77
Last Updated: Fri May 02, 2014 02:12 PM UTC
Owner: nobody

Hi,

I am trying to configure c3p0 in my web application but while restarting the jboss I am getting the following error.

org.jboss.deployment.DeploymentInfo@df0ab516 { url=file:/D:/server/jboss-4.2.3.GA/server/default/deploy/c3p0-service.xml }
deployer: org.jboss.deployment.SARDeployer@c72243
status: Deployment FAILED reason: Unexpected error during load of: com.mchange.v2.c3p0.jboss.C3P0PooledDataSource, msg=Bad version number in .class file; - nested
throwable: (java.lang.ClassNotFoundException: Unexpected error during load of: com.mchange.v2.c3p0.jboss.C3P0PooledDataSource, msg=Bad version number in
.class file)
state: FAILED
watch: file:/D:/server/jboss-4.2.3.GA/server/default/deploy/c3p0-service.xml

My application environment is
Server : jboss-4.2.3.GA
jdk : jdk 1.5.16
c3p0 jars : c3p0-0.9.5-pre5.jar / mchange-commons-java-0.2.6.2.jar
mySQL connector jar : mysql-connector-java-3.1.11.jar

c3p0-service.xml :
<!DOCTYPE server>

java:SCMDS
jdbc:mysql://127.0.0.1:3306/db_name
com.mysql.jdbc.Driver
root
password
5
connectionTestTable
600
10
600
300
20
10
jboss:service=Naming

I am not able to figure out where I am making mistake ,I have copied the c3p0 jar in jboss/server/default/lib and c3p0-service.xml in jboss/server/default/deploy/ , as mentioned
In the link : ../c3p0-c3p0-0.9.5-pre5/src/doc/index.html

I will be very grateful if you can help me in sorting out this error.(Attached is the error stack trace file)

Regards
Kiran

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[Steve Waldman]

hi,

c3p0-0.9.5 prereleases are JDK6+. to run under a jdk 1.5 JVM, you will need to back off to c3p0-0.9.2.1