Re: [jboss-user] [JBoss Messaging] - PingTimerTask broken pipe
by Kevin Lohmann
Kevin Lohmann [http://community.jboss.org/people/kevin.lohmann] replied to the discussion
"PingTimerTask broken pipe"
To view the discussion, visit: http://community.jboss.org/message/559683#559683
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Hi there,
sorry for coming up with this old thread, but actually we are seeing these warnings (and one NPE) again and again in JBoss AS 5.0.1.GA and within its client:
2010-08-30 18:38:11,886 WARN [org.jboss.remoting.transport.bisocket.BisocketClientInvoker] (Timer-4) Unable to send ping: shutting down PingTimerTask
java.lang.NullPointerException
at org.jboss.remoting.transport.bisocket.BisocketClientInvoker$PingTimerTask.run(BisocketClientInvoker.java:723)
at java.util.TimerThread.mainLoop(Unknown Source)
at java.util.TimerThread.run(Unknown Source)
2010-08-30 22:44:48,043 WARN [org.jboss.remoting.transport.bisocket.BisocketClientInvoker] (Timer-4) Unable to send ping: shutting down PingTimerTask
java.net.SocketException: Socket closed
at java.net.SocketOutputStream.socketWrite(Unknown Source)
at java.net.SocketOutputStream.write(Unknown Source)
at org.jboss.remoting.transport.bisocket.BisocketClientInvoker$PingTimerTask.run(BisocketClientInvoker.java:723)
at java.util.TimerThread.mainLoop(Unknown Source)
at java.util.TimerThread.run(Unknown Source)
Unfortunately we can't find out, if we can ignore these warnings or what we can do. AS and client are running on the same machine.
Have you any hints what we should think about it?
Thanks,
Kevin
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15 years, 7 months
[JBoss Tools] - cant get one-to-one reverse engineering to work for me
by Pete Pron
Pete Pron [http://community.jboss.org/people/pete2k] created the discussion
"cant get one-to-one reverse engineering to work for me"
To view the discussion, visit: http://community.jboss.org/message/559680#559680
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Hi everyone,
I'm using the Jboss hibernate tools to reverse engineer an existing database and generating java + hbm.
Currently I'm becoming desperate by trying to resolv an one-to-one mapping. There is always a one-to-many & many-to-one
generated and I don't know what to do.
Its fine for me that the tools are trying to create a one-to-many (it could be) but I'm searching for a way to define this relationship as one-to-one.
First of all:
Its an Oracle 10 Database and Hibernatetools Version: 3.3.0.v20100720-0040-H162-M1
Detect one-to-one associations is turned on.
Here is the relevant SQL:
-----------------------------------------------------------------------------------------
CREATE TABLE EXT_ADDRESS (
ID NUMBER(22 , 0) NOT NULL,
...
<many attributes>
..
ADDRESS_ID NUMBER(22 , 0) NOT NULL
);
CREATE TABLE ADDRESS (
ID NUMBER(22 , 0) NOT NULL,
...
<many attributes>
);
ALTER TABLE EXT_ADDRESS ADD CONSTRAINT EXT_ADR_PK PRIMARY KEY (ID);
ALTER TABLE ADDRESS ADD CONSTRAINT ADR_PK PRIMARY KEY (ID);
ALTER TABLE EXT_ADDRESS ADD CONSTRAINT EXT_ADR_FK FOREIGN KEY (ADDRESS_ID)
REFERENCES ADDRESS (ID)
ON DELETE RESTRICT
ON UPDATE CASCADE;
-----------------------------------------------------------------------------------------
Here what I already tried to do in my hibernate.reveng.xml:
-----------------------------------------------------------------------------------------
<table name="EXT_ADDRESS" >
<column name="ID" type="long"></column>
<foreign-key constraint-name="EXT_ADR_FK">
<!-- <many-to-one exclude="true"/>
<set exclude="true" /> -->
<one-to-one exclude="false"/>
<inverse-one-to-one exclude="false"/>
</foreign-key>
</table>
-----------------------------------------------------------------------------------------
This doesn't work and there is always a Set of ExtAddress defined in Address. The table definition and the foreign
key should be correct. If i uncomment the many-to-one and set with exclude true the set is removed.
Any help is highly appreciated. Thanks
Pete
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15 years, 7 months
[jBPM] - Classloading of JNDI objects in ExternalActivityBehaviour impl
by Justin Couch
Justin Couch [http://community.jboss.org/people/jcouch] created the discussion
"Classloading of JNDI objects in ExternalActivityBehaviour impl"
To view the discussion, visit: http://community.jboss.org/message/559670#559670
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Classloading seems to be the eternal bane of JBPM and I've run in to another fun problem :(
Platform: JBPM 4.4, JBoss 5.1.0GA with JBPM as a process, JDK 1.6 u21, Win7 64bit
I have a custom ExternalActivityBehaviour where we reference several remote beans through JNDI. We have JBoss set up for strict classloading so that each EAR file has it's own class loader. My code for the deployment registers all the necessary classes with the JBPM deployment instance as needed:
ByteArrayInputStream bis = new ByteArrayInputStream(jbpm_config.getBytes()); try { ProcessEngine jbpm_engine = getProcessEngine(); ExecutionService exec_service = jbpm_engine.getExecutionService(); RepositoryService repo_service = jbpm_engine.getRepositoryService(); NewDeployment deployment = repo_service.createDeployment(); String workflow_name = workflow.getWorkflowName(); String jpdl_name = workflow_name + ".jpdl.xml"; deployment.addResourceFromInputStream(jpdl_name, bis); InputStream[] is = new InputStream[RUNTIME_CLASSES.length]; ClassLoader cl = Thread.currentThread().getContextClassLoader(); for(int i = 0; i < RUNTIME_CLASSES.length; i++) { String cls = convertClassName(RUNTIME_CLASSES[i]); InputStream class_input = cl.getResourceAsStream(cls); if(class_input == null) { log(...) } else { is[i] = class_input; deployment.addResourceFromInputStream(cls, class_input); } } deployment.setName(workflow_name); String deployment_id = deployment.deploy(); ProcessInstance process_instance = exec_service.startProcessInstanceByKey(workflow_name, vars); close(is); } catch(JbpmException jbe) { }
where getProcessEngine() uses a JNDI lookup.
That's fine - everything registers and puts the right sets of classes in to the DB - confirmed by manual inspection of the JBPM4_LOB table.
My custom behaviour looks like this:
public class JMSActivityBehaviour implements ExternalActivityBehaviour{ private JobProcessorManagerRemote jobProcessor; public JMSActivityBehaviour()
{
.... } @Override public void signal(ActivityExecution exec, String signal, Map<String, ?> extVars) throws Exception { exec.setVariables(extVars); exec.take(signal); } /** * @inheritDoc */ @Override public void execute(ActivityExecution exec) { // Locate the message queue first, to make sure we can send the // message. String jms_queue = null; QueueSession session = null; Queue message_queue = null; Context ctx = null; try { ctx = new InitialContext(); QueueConnectionFactory fac = (QueueConnectionFactory)ctx.lookup("ConnectionFactory"); QueueConnection conn = fac.createQueueConnection(); session = conn.createQueueSession(false, Session.AUTO_ACKNOWLEDGE); conn.start(); if(jobProcessor == null) { Object obj = ctx.lookup("ejb/mycompany/JobProcessorManager"); if(obj != null) jobProcessor = (JobProcessorManagerRemote)PortableRemoteObject.narrow(obj,JobProcessorManagerRemote.class ); }.... } catch (NamingException ne)
....
in the line where I look up the custom EJB (EJB3 SLSB), I get a ClassNotFoundException on the remote interface class. Note that the variable in the top of the class doesn't throw the CNFE on <init>, it is only during the JNDI lookup, from somewhere in the guts of JNDI. I've confirmed w test that that specific EJB end point can be located in JNDI in other EJBs, MBeans, and even external Junit tests, so I have narrowed it down to the way that JBPM does it's classloading specifically. Here's the important part of the stack trace:
Caused by: java.lang.ClassNotFoundException: com.mycompany.server.ejb3.scheduler.JobProcessorManagerRemote from BaseClassLoader@bec2452{VFSClassLoaderPolicy@3c44899b{name=vfsfile:/D:/apps/jboss-5.1.0.GA/server/iICE/deploy/jbpm/jbpm-enterprise.jar/ domain=ClassLoaderDomain@7d858aa0{name=DefaultDomain parentPolicy=BEFORE parent=org.jboss.bootstrap.NoAnnotationURLClassLoader@2f754ad2} roots=[MemoryContextHandler@933641734[path= context=vfsmemory://3ia22z-wqetcv-gdhxpu8b-1-gdhxq6z0-2a real=vfsmemory://3ia22z-wqetcv-gdhxpu8b-1-gdhxq6z0-2a], FileHandler(a)53614709[path=jbpm/jbpm-enterprise.jar context=file:/D:/apps/jboss-5.1.0.GA/server/iICE/deploy/ real=file:/D:/apps/jboss-5.1.0.GA/server/iICE/deploy/jbpm/jbpm-enterprise.jar/]] delegates=null exported=[META-INF] <IMPORT-ALL>NON_EMPTY}} at org.jboss.classloader.spi.base.BaseClassLoader.loadClass(BaseClassLoader.java:448) at java.lang.ClassLoader.loadClass(Unknown Source) at org.jboss.classloading.spi.DelegatingClassLoader.loadClass(DelegatingClassLoader.java:87) at java.lang.ClassLoader.loadClass(Unknown Source) at org.jboss.util.loading.DelegatingClassLoader.loadClass(DelegatingClassLoader.java:97) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.jboss.ejb3.proxy.impl.objectfactory.ProxyObjectFactory.redefineProxyInTcl(ProxyObjectFactory.java:406) ... 175 more
In reading through past documentation and forum threads, I've noticed that there used to be an option in JBPM to turn off it's internal classloader and delegate to JBoss's classloader. With JBPM 4.3 and 4.4 that option no longer seems to exist. Anyone have ideas on places to look and other options to try. I've tried everything in the wiki, previous forum posts and such, just completely out of ideas.
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15 years, 7 months