dear: When I use jbpm 4.3 and grails 1.2 to deploy my process file, I met the following error: Caused by: org.codehaus.groovy.runtime.InvokerInvocationException: org.springframework.beans.NotReadablePropertyException: Invalid property 'dbid' of bean class [org.jbpm.pvm.internal.repository.DeploymentProperty]: Bean property 'dbid' is not readable or has an invalid getter method: Does the return type of the getter match the parameter type of the setter? My configuration is as follows: hibernate.cfg.xml <hibernate-configuration> <session-factory> <mapping resource="jbpm.repository.hbm.xml" /> <mapping resource="jbpm.execution.hbm.xml" /> <mapping resource="jbpm.history.hbm.xml" /> <mapping resource="jbpm.task.hbm.xml" /> <mapping resource="jbpm.identity.hbm.xml" /> </session-factory> </hibernate-configuration> spring/resources.groovy beans = { springHelper(org.jbpm.pvm.internal.processengine.SpringHelper) { jbpmCfg = "jbpm.cfg.xml" } processEngine(springHelper:"createProcessEngine") } jbpm.cfg.xml <jbpm-configuration> <import resource="jbpm.default.cfg.xml" /> <import resource="jbpm.tx.spring.cfg.xml" /> <import resource="jbpm.jpdl.cfg.xml" /> <import resource="jbpm.bpmn.cfg.xml" /> <import resource="jbpm.identity.cfg.xml" /> <import resource="jbpm.businesscalendar.cfg.xml" /> <import resource="jbpm.console.cfg.xml" /> <import resource="jbpm.jobexecutor.cfg.xml" /> </jbpm-configuration> deploy code： def processEngine def init = { servletContext -> def repositoryService=processEngine.getRepositoryService() def deploymentId = repositoryService.createDeployment() .addResourceFromClasspath("jbpm/processes/start2end.jpdl.xml") .deploy(); // the error happen } According the error message,I find the org.jbpm.pvm.internal.repository.DeploymentProperty ,and add the following code: public long getDbid(){ return dbid; } and recompiled the jbpm source code, the error disappear!! I think this maybe a bug of Jbpm 4.3!Do you think so? And there is another question,if in my spring/resources.groovy, I config the jBPM services such as repositoryService,executionService, the configuratioin is as follows: beans = { springHelper(org.jbpm.pvm.internal.processengine.SpringHelper) { jbpmCfg = "jbpm.cfg.xml" } processEngine(springHelper:"createProcessEngine") repositoryService(processEngine:"getRepositoryService") //error happen } the error is as follows: 2010-01-11 15:42:31,140 [main] ERROR context.ContextLoader - Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'repositoryService': Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.jbpm.api.RepositoryService org.jbpm.pvm.internal.processengine.ProcessEngineImpl.getRepositoryService()] threw exception; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'repositoryService': Requested bean is currently in creation: Is there an unresolvable circular reference? at org.grails.tomcat.TomcatServer.start(TomcatServer.groovy:135) at grails.web.container.EmbeddableServer$start.call(Unknown Source) at _GrailsRun_groovy$_run_closure5_closure12.doCall(_GrailsRun_groovy:158)..... Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.jbpm.api.RepositoryService org.jbpm.pvm.internal.processengine.ProcessEngineImpl.getRepositoryService()] threw exception; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'repositoryService': Requested bean is currently in creation: Is there an unresolvable circular reference? ... 23 more Caused by: org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'repositoryService': Requested bean is currently in creation: Is there an unresolvable circular reference? at org.jbpm.pvm.internal.processengine.SpringProcessEngine.get(SpringProcessEngine.java:109) at org.jbpm.pvm.internal.processengine.ProcessEngineImpl.getRepositoryService(ProcessEngineImpl.java:172) ... 23 more I can't find the resolve solution of this error, so I only use the code such as def repositoryService=processEngine.getRepositoryService() to get the jbpm services.Do you have some advice?