2014-04-13 15:10 GMT+04:00 Christian <cm...@famiru.de>:
> Hi,
>
> I'm experimenting with java 8, spring data JPA, hibernate and tomcat 8.
> Spring Data JPA initializes hibernate on deployment.
>
> On tomcat 8.0.0-RC10 everything is fine. Using Tomcat 8.0.1 or newer, an
> exception is thrown when hibernate tries to fetch the datasource from JNDI:
>
> (....)
> ...
> at
> org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4737)
> at
> org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5159)
> - locked <0x1aea> (a org.apache.catalina.core.StandardContext)
> at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
> at
> org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:726)
> at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:702)
> at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:697)
> at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1646)
> ...
>
>
> When I disable hibernate and use the following snippet in a controller,
> the DataSource is returned correctly:
> Context initCtx = new InitialContext();
> DataSource dataSource = (DataSource)
> initCtx.lookup("java:comp/env/jdbc/myDB");
>
> I have configured the datasource in META-INF/context.xml:
> <?xml version="1.0" encoding="UTF-8"?>
> <Context path="/">
> <Resource name="jdbc/myDB"
> auth="Container"
> type="javax.sql.DataSource"
> driverClassName="com.mysql.jdbc.Driver"
> url="jdbc:mysql://localhost:3306/test"/>
> </Context>
>
> And referenced it in web.xml:
> <?xml version="1.0" encoding="UTF-8"?>
> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xmlns="http://xmlns.jcp.org/xml/ns/javaee";
> xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
> http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd";
> version="3.1">
> <resource-ref>
> <res-ref-name>jdbc/myDB</res-ref-name>
> <res-type>javax.sql.DataSource</res-type>
> <res-auth>Container</res-auth>
> </resource-ref>
> </web-app>
>
> Of course the mysql driver is copied into $CATALINA_BASE/lib.
>
> Has the JNDI initialization changed between tomcat 8.0.0-RC10 and 8.0.1?
>
Is hibernate initialized via a <listener> in web.xml, or where?
"path" attribute cannot be used in META-INF/context.xml file.
The driver jar should be in one place, not both.
IIRC,
a) classloading for drivers was changed at some point, to allow them
in WEB-INF/lib
b) different versions of Tomcat 8 use different versions of Apache
Commons DBCP 2 pool
The visible part of JNDI depends on
Thread.currentThread().getContextClassLoader() (aka TCCL). Any reason
why TCCL may be wrong? (You aren't providing the full stacktrace)
Maybe you can try debugging, with a breakpoint in org.apache.naming.* classes?
http://wiki.apache.org/tomcat/FAQ/Developing#Debugging
Best regards,
Konstantin Kolinko
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