After a whole day work (but in vain) , I modified my code :
I take off all hibernate-related settings/libraries from persistence.xml and
maven dependencies , I just want to first use resin's Amber to test whether
CanDI works...
This is database settings in resin-web.xml :
<database jndi-name="jdbc/mining">
<driver type="com.mysql.jdbc.Driver">
<url>jdbc:mysql://db/mining?useUnicode=true&characterEncoding=UTF8</url>
<user>adm</user>
<password>pwd</password>
</driver>
<max-connections>100</max-connections>
</database>
This is persistence.xml :
<persistence xmlns="http://java.sun.com/xml/ns/persistence"; version="1.0">
<persistence-unit name="mining" transaction-type="RESOURCE_LOCAL">
<non-jta-data-source>jdbc/mining</non-jta-data-source>
<class>foo.Person</class>
</properties>
</persistence-unit>
</persistence>
When resin inits , I can see Amber successfully get the connection , and
build the connection pool (ManagedPoolItem) .
But I still cannot get PersonDao's implementation , it seems resin cannot
successfully create the PersistenceContext , here is the FINER log dump :
WebApp[http://test.smallufo.com/testapp-1] map (uri:/hello -> hello)
Dispatch '/hello' to AccessLogFilterChain[http://test.smallufo.com/testapp-1,
next=WebAppFilterChain[http://test.smallufo.com/testapp-1,
next=ServletFilterChain[hello]]]
com.caucho.config.ConfigException: foo.HelloServlet.personDao:
foo.PersonDaoImpl.entityManager java.lang.NullPointerException
at com.caucho.config.ConfigException.create(ConfigException.java:99)
at com.caucho.config.ConfigException.create(ConfigException.java:125)
at
com.caucho.config.inject.InjectionTargetImpl$FieldInjectProgram.inject(InjectionTargetImpl.java:811)
at
com.caucho.config.inject.InjectionTargetImpl.inject(InjectionTargetImpl.java:266)
at
com.caucho.server.dispatch.ServletConfigImpl.createServletImpl(ServletConfigImpl.java:1260)
at
com.caucho.server.dispatch.ServletConfigImpl.createServlet(ServletConfigImpl.java:1142)
at
com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:98)
at
com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:183)
at
com.caucho.server.webapp.AccessLogFilterChain.doFilter(AccessLogFilterChain.java:103)
at
com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:286)
at
com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:775)
at
com.caucho.server.connection.TcpConnection.dispatchRequest(TcpConnection.java:600)
at
com.caucho.server.connection.TcpConnection.handleRequestsImpl(TcpConnection.java:566)
at
com.caucho.server.connection.TcpConnection.handleRequests(TcpConnection.java:519)
at
com.caucho.server.connection.TcpConnection$AcceptTask.doTask(TcpConnection.java:1100)
at
com.caucho.server.connection.TcpConnection$ConnectionReadTask.runThread(TcpConnection.java:1037)
at
com.caucho.server.connection.TcpConnection$AcceptTask.run(TcpConnection.java:1068)
at com.caucho.util.ThreadPool$PoolThread.runTasks(ThreadPool.java:901)
at com.caucho.util.ThreadPool$PoolThread.run(ThreadPool.java:866)
Caused by: com.caucho.config.ConfigException:
foo.PersonDaoImpl.entityManager java.lang.NullPointerException
at com.caucho.config.ConfigException.create(ConfigException.java:102)
at
com.caucho.config.j2ee.PersistenceContextGenerator.create(PersistenceContextGenerator.java:121)
at
com.caucho.config.program.FieldGeneratorProgram.inject(FieldGeneratorProgram.java:84)
at
com.caucho.config.inject.InjectionTargetImpl$FieldHandlerProgram.inject(InjectionTargetImpl.java:860)
at
com.caucho.config.inject.InjectionTargetImpl.inject(InjectionTargetImpl.java:266)
at
com.caucho.config.inject.ManagedBeanImpl.create(ManagedBeanImpl.java:149)
at
com.caucho.config.inject.InjectManager.getInstanceRec(InjectManager.java:1347)
at
com.caucho.config.inject.InjectManager.getReference(InjectManager.java:1311)
at
com.caucho.config.inject.InjectManager.getInjectableReference(InjectManager.java:1509)
at
com.caucho.config.inject.InjectionTargetImpl$FieldInjectProgram.inject(InjectionTargetImpl.java:807)
... 16 more
Caused by: java.lang.NullPointerException
at
com.caucho.config.inject.InjectManager.getInstanceRec(InjectManager.java:1337)
at
com.caucho.config.inject.InjectManager.getReference(InjectManager.java:1311)
at
com.caucho.config.j2ee.WebBeanGenerator.create(WebBeanGenerator.java:66)
at
com.caucho.config.j2ee.PersistenceContextGenerator.create(PersistenceContextGenerator.java:108)
... 24 more
Http[5] HTTP/1.1 500 Internal Server Error
I've stuck with this problem for days , but cannot find an answer ...
I'm very appreciated if somebody helps me... thanks.
I am using Resin (non-Pro) 4.0.5
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