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ClassNotFoundException with JAR already in WEB-INF/lib !!! WTP 0.7 [message #130642]

Sun, 07 August 2005 22:57

Eclipse User

Originally posted by: cgaviao.pop.com.br

Hi people, I pass this weekend trying to resolve this problems but i
couldn´t...

I´m using WTP 0.7 with Tomcat 5.5.9 and I´m using Derby as DB.

I put derbyclient.jar(the driver jar) in WEB-INF/lib and it was
recognized by WTP (it appears in Web App Libraries and it was copied to
..deployables\xxxx\WEB-INF\lib).

I even have tried to put it as a dependency at .wtpmodules file:

<dependent-module deploy-path="/"
handle="module:/classpath/var/MAVEN_REPO/derby/jars/derbyclient.jar " />

My context.xml file has:

<Resource name="jdbc/impsisso" type="javax.sql.DataSource"
driverClassName="org.apache.derby.jdbc.ClientDriver"
url="jdbc:derby:net://localhost:1527/xxxx" username="ttt" password="x"
maxActive="50" maxWait="-1" maxIdle="10" removeAbandoned="true"
logAbandoned="true" />

Every time that I try to connect to datasource it throws this exception:

org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot load JDBC driver
class 'org.apache.derby.jdbc.ClientDriver'
at
org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource (BasicDataSource.java:766)
at
org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(Ba sicDataSource.java:540)

Caused by: java.lang.ClassNotFoundException:
org.apache.derby.jdbc.ClientDriver
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)

I´m missing something??

best regards for all...

Cristiano

Re: ClassNotFoundException with JAR already in WEB-INF/lib !!! WTP 0.7 [message #131852 is a reply to message #130642]

Wed, 10 August 2005 19:41

Eclipse User

Originally posted by: nospam.ronald_vankuijk_net.remove

Cristiano Gavião wrote:
> Hi people, I pass this weekend trying to resolve this problems but i
> couldn´t...
>
> I´m using WTP 0.7 with Tomcat 5.5.9 and I´m using Derby as DB.
>
> I put derbyclient.jar(the driver jar) in WEB-INF/lib and it was
> recognized by WTP (it appears in Web App Libraries and it was copied to
> .deployables\xxxx\WEB-INF\lib).
>
> I even have tried to put it as a dependency at .wtpmodules file:
>
> <dependent-module deploy-path="/"
> handle="module:/classpath/var/MAVEN_REPO/derby/jars/derbyclient.jar " />
>
> My context.xml file has:
>
> <Resource name="jdbc/impsisso" type="javax.sql.DataSource"
> driverClassName="org.apache.derby.jdbc.ClientDriver"
> url="jdbc:derby:net://localhost:1527/xxxx" username="ttt" password="x"
> maxActive="50" maxWait="-1" maxIdle="10" removeAbandoned="true"
> logAbandoned="true" />
>
>
>
> Every time that I try to connect to datasource it throws this exception:
>
> org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot load JDBC driver
> class 'org.apache.derby.jdbc.ClientDriver'
> at
> org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource (BasicDataSource.java:766)
>
> at
> org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(Ba sicDataSource.java:540)
>
>
> Caused by: java.lang.ClassNotFoundException:
> org.apache.derby.jdbc.ClientDriver
> at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
>
>
> I´m missing something??
>
> best regards for all...
>
> Cristiano

I had the same thing if the url is not configured right (e.g. to an
unexisiting host, schema etc.). Then you get this strange error. Maybe
it is the same with you

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