Development FAQ

###Q1. How to resolve "Exception: java.lang.IllegalArgumentException: number of transferred bytes cannot be negative"### If you encounter the exception below during start-up:

INFO  [org.jbpm.ee.services.ejb.startup.RuntimeManagerBean] (ServerService Thread Pool -- 66) Rehydrating runtime manager for: com.your.group:yourArtifactId:yourVersion
INFO  [com.ning.http.client.providers.netty.NettyAsyncHttpProvider] (pool-7-thread-1) Number of application's worked threads is 16
INFO  [com.ning.http.client.providers.netty.NettyAsyncHttpProvider] (pool-10-thread-1) Number of application's worked threads is 16
 ERROR [stderr] (FileRepositoryConnector-1) Exception in thread "FileRepositoryConnector-1" java.lang.IllegalArgumentException: number of transferred bytes cannot be negative

ERROR [stderr] (FileRepositoryConnector-1) 	at org.sonatype.aether.util.listener.DefaultTransferEvent.setTransferredBytes(DefaultTransferEvent.java:123)

ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 66) MSC000001: Failed to start service jboss.deployment.unit."jbpm-ee-services.war".component.RuntimeManagerBean.START: org.jboss.msc.service.StartException in service jboss.deployment.unit."jbpm-ee-services.war".component.RuntimeManagerBean.START: java.lang.IllegalStateException: JBAS011048: Failed to construct component instance
	at org.jboss.as.ee.component.ComponentStartService$1.run(ComponentStartService.java:57) [jboss-as-ee-7.2.1.Final-redhat-10.jar:7.2.1.Final-redhat-10]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [rt.jar:1.7.0_25]
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) [rt.jar:1.7.0_25]
	at java.util.concurrent.FutureTask.run(FutureTask.java:166) [rt.jar:1.7.0_25]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_25]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_25]
	at java.lang.Thread.run(Thread.java:724) [rt.jar:1.7.0_25]
	at org.jboss.threads.JBossThread.run(JBossThread.java:122)
Caused by: java.lang.IllegalStateException: JBAS011048: Failed to construct component instance
	at org.jboss.as.ee.component.BasicComponent.constructComponentInstance(BasicComponent.java:163) [jboss-as-ee-7.2.1.Final-redhat-10.jar:7.2.1.Final-redhat-10]
	at org.jboss.as.ee.component.BasicComponent.createInstance(BasicComponent.java:85) [jboss-as-ee-7.2.1.Final-redhat-10.jar:7.2.1.Final-redhat-10]
	at org.jboss.as.ejb3.component.singleton.SingletonComponent.getComponentInstance(SingletonComponent.java:126)
	at org.jboss.as.ejb3.component.singleton.SingletonComponent.start(SingletonComponent.java:141)
	at org.jboss.as.ee.component.ComponentStartService$1.run(ComponentStartService.java:54) [jboss-as-ee-7.2.1.Final-redhat-10.jar:7.2.1.Final-redhat-10]
	... 7 more
Caused by: javax.ejb.EJBException: java.lang.IllegalArgumentException: number of transferred bytes cannot be negative
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleExceptionInOurTx(CMTTxInterceptor.java:165)
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:250)
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.requiresNew(CMTTxInterceptor.java:344)
	at org.jboss.as.ejb3.tx.LifecycleCMTTxInterceptor.processInvocation(LifecycleCMTTxInterceptor.java:66)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45) [jboss-as-ee-7.2.1.Final-redhat-10.jar:7.2.1.Final-redhat-10]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.BasicComponent.constructComponentInstance(BasicComponent.java:161) [jboss-as-ee-7.2.1.Final-redhat-10.jar:7.2.1.Final-redhat-10]
	... 11 more
Caused by: java.lang.IllegalArgumentException: number of transferred bytes cannot be negative
	at org.sonatype.aether.util.listener.DefaultTransferEvent.setTransferredBytes(DefaultTransferEvent.java:123)
	at org.sonatype.aether.connector.file.FileRepositoryWorker.run(FileRepositoryWorker.java:299)
	at org.sonatype.aether.util.concurrency.RunnableErrorForwarder$1.run(RunnableErrorForwarder.java:60)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_25]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_25]
	at java.lang.Thread.run(Thread.java:724) [rt.jar:1.7.0_25]

###A1.###

1. Please make sure a clean version of JBoss EAP is not running.
2. Log into mysql as the root user.
3. To recreate the jbpm database, issue a

     drop database jbpm;
     create database jbpm;

4. To recreate the jbpm-timers database, issue a

   drop database `jbpm-timers`;
   create database `jbpm-timers`;

5. Re-import the mysql specific ddl into jbpm-timers from the quartz/docs/dbTables directory (tables_mysql.sql)
6. Start the clean version of JBoss EAP, with the datasources and the jbpm-ee-services.war in the deployments folder.

###Q2. In LDAP User Group Callback Scenario I'm getting: "Error when creating task on task server for work item id 4. Error reported by task server: There are no known Business Administrators, task cannot be created according to WS-HT specification: org.jbpm.services.task.exception.CannotAddTaskException: There are no known Business Administrators, task cannot be created according to WS-HT specification"###

###A2.### Please make sure that there is a LDAP group called Administrators and a user called Administrator who belongs to the Administrators group. For more information please refer to the LDAP User Group Configuration.

###Q3. I encountered issues with marshalling/unmarshalling EJBs. ###

###A3.### Please add this to your EJB.

static {
    EJBClientContext.getCurrent().registerInterceptor(0, new MapSerializationInterceptor());
}

For more information please refer to Special Handling for EJBs.

###Q4. I encountered JBWEB000287: Exception sending context initialized event to listener instance of class org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap: java.lang.RuntimeException: Unable to find a public constructor for class ###

###A4.### Please make sure that your application does not have any resteasy related jar files in the WEB-INF/lib directory, otherwise you may encounter an exception similar to this:

ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[your app]] (ServerService Thread Pool -- 115) 
JBWEB000287: Exception sending context initialized event to listener instance of class org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap: java.lang.RuntimeException: Unable to find a public constructor for class org.jboss.resteasy.core.AsynchronousDispatcher
	at org.jboss.resteasy.plugins.server.resourcefactory.POJOResourceFactory.registered(POJOResourceFactory.java:35) [resteasy-jaxrs-2.3.7.Final-redhat-2.jar:2.3.7.Final-redhat-2]
	at org.jboss.resteasy.core.ResourceMethodRegistry.addResourceFactory(ResourceMethodRegistry.java:120) [resteasy-jaxrs-2.3.7.Final-redhat-2.jar:2.3.7.Final-redhat-2]
	at org.jboss.resteasy.core.ResourceMethodRegistry.addResourceFactory(ResourceMethodRegistry.java:106) [resteasy-jaxrs-2.3.7.Final-redhat-2.jar:2.3.7.Final-redhat-2]
	at org.jboss.resteasy.core.ResourceMethodRegistry.addResourceFactory(ResourceMethodRegistry.java:83) [resteasy-jaxrs-2.3.7.Final-redhat-2.jar:2.3.7.Final-redhat-2]
	at org.jboss.resteasy.core.ResourceMethodRegistry.addPerRequestResource(ResourceMethodRegistry.java:72) [resteasy-jaxrs-2.3.7.Final-redhat-2.jar:2.3.7.Final-redhat-2]
	at org.jboss.resteasy.spi.ResteasyDeployment.registration(ResteasyDeployment.java:375) [resteasy-jaxrs-2.3.7.Final-redhat-2.jar:2.3.7.Final-redhat-2]
	at org.jboss.resteasy.spi.ResteasyDeployment.start(ResteasyDeployment.java:233) [resteasy-jaxrs-2.3.7.Final-redhat-2.jar:2.3.7.Final-redhat-2]
	at org.jboss.resteasy.plugins.server.servlet.ResteasyBootstrap.contextInitialized(ResteasyBootstrap.java:28) [resteasy-jaxrs-2.3.7.Final-redhat-2.jar:2.3.7.Final-redhat-2]
	at org.apache.catalina.core.StandardContext.contextListenerStart(StandardContext.java:3339) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:3777) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
	at org.jboss.as.web.deployment.WebDeploymentService.doStart(WebDeploymentService.java:156) [jboss-as-web-7.3.0.Final-redhat-14.jar:7.3.0.Final-redhat-14]
	at org.jboss.as.web.deployment.WebDeploymentService.access$000(WebDeploymentService.java:60) [jboss-as-web-7.3.0.Final-redhat-14.jar:7.3.0.Final-redhat-14]
	at org.jboss.as.web.deployment.WebDeploymentService$1.run(WebDeploymentService.java:93) [jboss-as-web-7.3.0.Final-redhat-14.jar:7.3.0.Final-redhat-14]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [rt.jar:1.7.0_45]
	at java.util.concurrent.FutureTask.run(FutureTask.java:262) [rt.jar:1.7.0_45]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_45]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_45]
	at java.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_45]
	at org.jboss.threads.JBossThread.run(JBossThread.java:122)

###Q5. I encountered Exception with root cause Caused by: java.lang.NoClassDefFoundError: org/jboss/netty/channel/SimpleChannelUpstreamHandler###

###A5.### Please add the configuration

<global-modules>
    <module name="org.jboss.netty" slot="main"/>
</global-modules>

under

<subsystem xmlns="urn:jboss:domain:ee:1.1">