Hello, I integrated the jBPM example from Seam reference (http://docs.jboss.com/seam/2.0.1.GA/reference/en/html/tutorial.html, Chapter 1.4) into my existing and working web application (this means, I simply added the two screens and the two java classes from the example and of course the needed libraries and configuration).
The application uses JSF with Facelets, Seam and Spring. The jBPM engine seams to work in general, too. I am able to create process instances and to list tasks in the pooledTaskList etc. (I testet this with an example apart from the one from the seam reference). However, in any case, when I call a method that is annotated with a @BeginTask, it blows up with a StackOverflow. The stacktrace is very long, below you can find some fragments. The stackoverflow occurs both with JBoss AS (the one included in the jBPM 3.1.4 starterkit) and Tomcat. Any ideas? Is it because of Spring? Or is something wrong with el-api? part of stacktrace... | at org.jboss.seam.Component.getInstance(Component.java:1829) | at org.jboss.seam.Component.getInstance(Component.java:1824) | at org.jboss.seam.bpm.ProcessInstance.instance(ProcessInstance.java:65) | at org.jboss.seam.contexts.BusinessProcessContext.getProcessInstance(BusinessProcessContext.java:218) | at org.jboss.seam.contexts.BusinessProcessContext.getContextInstance(BusinessProcessContext.java:205) | at org.jboss.seam.contexts.BusinessProcessContext.get(BusinessProcessContext.java:56) | at org.jboss.seam.contexts.Contexts.lookupInStatefulContexts(Contexts.java:209) | at org.jboss.seam.Component.getInstance(Component.java:1839) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50) | at org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166) | at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53) | at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:143) | at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:73) | at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44) | at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186) | at org.jboss.seam.core.Expressions$1.getValue(Expressions.java:111) | at org.jboss.seam.ioc.spring.SpringTransaction.begin(SpringTransaction.java:70) | at org.jboss.seam.util.Work.workInTransaction(Work.java:35) | at org.jboss.seam.bpm.ProcessInstance.getProcessInstance(ProcessInstance.java:39) | at sun.reflect.GeneratedMethodAccessor119.invoke(Unknown Source) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:585) | at org.jboss.seam.util.Reflections.invoke(Reflections.java:21) | at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125) | at org.jboss.seam.Component.callComponentMethod(Component.java:2082) | at org.jboss.seam.Component.unwrap(Component.java:2108) | at org.jboss.seam.Component.getInstance(Component.java:1887) | at org.jboss.seam.Component.getInstance(Component.java:1852) | at org.jboss.seam.Component.getInstance(Component.java:1829) | at org.jboss.seam.Component.getInstance(Component.java:1824) | at org.jboss.seam.bpm.ProcessInstance.instance(ProcessInstance.java:65) | at org.jboss.seam.contexts.BusinessProcessContext.getProcessInstance(BusinessProcessContext.java:218) | at org.jboss.seam.contexts.BusinessProcessContext.getContextInstance(BusinessProcessContext.java:205) | at org.jboss.seam.contexts.BusinessProcessContext.get(BusinessProcessContext.java:56) | at org.jboss.seam.contexts.Contexts.lookupInStatefulContexts(Contexts.java:209) | at org.jboss.seam.Component.getInstance(Component.java:1839) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50) | at org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166) | at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53) | at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:143) | at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:73) | at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44) | at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186) | at org.jboss.seam.core.Expressions$1.getValue(Expressions.java:111) | at org.jboss.seam.ioc.spring.SpringTransaction.begin(SpringTransaction.java:70) | at org.jboss.seam.util.Work.workInTransaction(Work.java:35) | at org.jboss.seam.bpm.ProcessInstance.getProcessInstance(ProcessInstance.java:39) | at sun.reflect.GeneratedMethodAccessor119.invoke(Unknown Source) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:585) | at org.jboss.seam.util.Reflections.invoke(Reflections.java:21) | at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125) | at org.jboss.seam.Component.callComponentMethod(Component.java:2082) | at org.jboss.seam.Component.unwrap(Component.java:2108) | at org.jboss.seam.Component.getInstance(Component.java:1887) | at org.jboss.seam.Component.getInstance(Component.java:1852) | at org.jboss.seam.Component.getInstance(Component.java:1829) | at org.jboss.seam.Component.getInstance(Component.java:1824) | at org.jboss.seam.bpm.ProcessInstance.instance(ProcessInstance.java:65) | at org.jboss.seam.contexts.BusinessProcessContext.getProcessInstance(BusinessProcessContext.java:218) | at org.jboss.seam.contexts.BusinessProcessContext.getContextInstance(BusinessProcessContext.java:205) | at org.jboss.seam.contexts.BusinessProcessContext.get(BusinessProcessContext.java:56) | at org.jboss.seam.contexts.Contexts.lookupInStatefulContexts(Contexts.java:209) | at org.jboss.seam.Component.getInstance(Component.java:1839) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50) | at org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166) | at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53) | at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:143) | at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:73) | at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44) | at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186) | at org.jboss.seam.core.Expressions$1.getValue(Expressions.java:111) | at org.jboss.seam.ioc.spring.SpringTransaction.begin(SpringTransaction.java:70) | at org.jboss.seam.util.Work.workInTransaction(Work.java:35) | at org.jboss.seam.bpm.ProcessInstance.getProcessInstance(ProcessInstance.java:39) | at sun.reflect.GeneratedMethodAccessor119.invoke(Unknown Source) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:585) | at org.jboss.seam.util.Reflections.invoke(Reflections.java:21) | at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125) | at org.jboss.seam.Component.callComponentMethod(Component.java:2082) | at org.jboss.seam.Component.unwrap(Component.java:2108) | at org.jboss.seam.Component.getInstance(Component.java:1887) | at org.jboss.seam.Component.getInstance(Component.java:1852) | at org.jboss.seam.Component.getInstance(Component.java:1829) | at org.jboss.seam.Component.getInstance(Component.java:1824) | at org.jboss.seam.bpm.ProcessInstance.instance(ProcessInstance.java:65) | at org.jboss.seam.contexts.BusinessProcessContext.getProcessInstance(BusinessProcessContext.java:218) | at org.jboss.seam.contexts.BusinessProcessContext.getContextInstance(BusinessProcessContext.java:205) | at org.jboss.seam.contexts.BusinessProcessContext.get(BusinessProcessContext.java:56) | at org.jboss.seam.contexts.Contexts.lookupInStatefulContexts(Contexts.java:209) | at org.jboss.seam.Component.getInstance(Component.java:1839) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50) | at org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166) | at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53) | at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:143) | at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:73) | at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44) | at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186) | at org.jboss.seam.core.Expressions$1.getValue(Expressions.java:111) | at org.jboss.seam.ioc.spring.SpringTransaction.begin(SpringTransaction.java:70) | at org.jboss.seam.util.Work.workInTransaction(Work.java:35) | at org.jboss.seam.bpm.ProcessInstance.getProcessInstance(ProcessInstance.java:39) | at sun.reflect.GeneratedMethodAccessor119.invoke(Unknown Source) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:585) | at or | :21,399 INFO [STDOUT] g.jboss.seam.util.Reflections.invoke(Reflections.java:21) | at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125) | at org.jboss.seam.Component.callComponentMethod(Component.java:2082) | at org.jboss.seam.Component.unwrap(Component.java:2108) | at org.jboss.seam.Component.getInstance(Component.java:1887) | at org.jboss.seam.Component.getInstance(Component.java:1852) | at org.jboss.seam.Component.getInstance(Component.java:1829) | at org.jboss.seam.Component.getInstance(Component.java:1824) | at org.jboss.seam.bpm.ProcessInstance.instance(ProcessInstance.java:65) | at org.jboss.seam.contexts.BusinessProcessContext.getProcessInstance(BusinessProcessContext.java:218) | at org.jboss.seam.contexts.BusinessProcessContext.getContextInstance(BusinessProcessContext.java:205) | at org.jboss.seam.contexts.BusinessProcessContext.get(BusinessProcessContext.java:56) | at org.jboss.seam.contexts.Contexts.lookupInStatefulContexts(Contexts.java:209) | at org.jboss.seam.Component.getInstance(Component.java:1839) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50) | at org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166) | at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53) | at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:143) | at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:73) | at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44) | at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186) | at org.jboss.seam.core.Expressions$1.getValue(Expressions.java:111) | at org.jboss.seam.ioc.spring.SpringTransaction.begin(SpringTransaction.java:70) | at org.jboss.seam.util.Work.workInTransaction(Work.java:35) | at org.jboss.seam.bpm.ProcessInstance.getProcessInstance(ProcessInstance.java:39) | at sun.reflect.GeneratedMethodAccessor119.invoke(Unknown Source) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:585) | at org.jboss.seam.util.Reflections.invoke(Reflections.java:21) | at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125) | at org.jboss.seam.Component.callComponentMethod(Component.java:2082) | at org.jboss.seam.Component.unwrap(Component.java:2108) | at org.jboss.seam.Component.getInstance(Component.java:1887) | at org.jboss.seam.Component.getInstance(Component.java:1852) | at org.jboss.seam.Component.getInstance(Component.java:1829) | at org.jboss.seam.Component.getInstance(Component.java:1824) | at org.jboss.seam.bpm.ProcessInstance.instance(ProcessInstance.java:65) | at org.jboss.seam.contexts.BusinessProcessContext.getProcessInstance(BusinessProcessContext.java:218) | at org.jboss.seam.contexts.BusinessProcessContext.getContextInstance(BusinessProcessContext.java:205) | at org.jboss.seam.contexts.BusinessProcessContext.get(BusinessProcessContext.java:56) | at org.jboss.seam.contexts.Contexts.lookupInStatefulContexts(Contexts.java:209) | at org.jboss.seam.Component.getInstance(Component.java:1839) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50) | at org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166) | at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53) | at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:143) | at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:73) | at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44) | at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186) | at org.jboss.seam.core.Expressions$1.getValue(Expressions.java:111) | at org.jboss.seam.ioc.spring.SpringTransaction.begin(SpringTransaction.java:70) | at org.jboss.seam.util.Work.workInTransaction(Work.java:35) | at org.jboss.seam.bpm.ProcessInstance.getProcessInstance(ProcessInstance.java:39) | at sun.reflect.GeneratedMethodAccessor119.invoke(Unknown Source) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:585) | at org.jboss.seam.util.Reflections.invoke(Reflections.java:21) | at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125) | at org.jboss.seam.Component.callComponentMethod(Component.java:2082) | at org.jboss.seam.Component.unwrap(Component.java:2108) | at org.jboss.seam.Component.getInstance(Component.java:1887) | at org.jboss.seam.Component.getInstance(Component.java:1852) | at org.jboss.seam.Component.getInstance(Component.java:1829) | at org.jboss.seam.Component.getInstance(Component.java:1824) | at org.jboss.seam.bpm.ProcessInstance.instance(ProcessInstance.java:65) | at org.jboss.seam.contexts.BusinessProcessContext.getProcessInstance(BusinessProcessContext.java:218) | at org.jboss.seam.contexts.BusinessProcessContext.getContextInstance(BusinessProcessContext.java:205) | at org.jboss.seam.contexts.BusinessProcessContext.get(BusinessProcessContext.java:56) | at org.jboss.seam.contexts.Contexts.lookupInStatefulContexts(Contexts.java:209) | at org.jboss.seam.Component.getInstance(Component.java:1839) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50) | at org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166) | at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53) | at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:143) | at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:73) | at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44) | at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186) | at org.jboss.seam.core.Expressions$1.getValue(Expressions.java:111) | at org.jboss.seam.ioc.spring.SpringTransaction.begin(SpringTransaction.java:70) | at org.jboss.seam.util.Work.workInTransaction(Work.java:35) | at org.jboss.seam.bpm.ProcessInstance.getProcessInstance(ProcessInstance.java:39) | at sun.reflect.GeneratedMethodAccessor119.invoke(Unknown Source) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:585) | at org.jboss.seam.util.Reflections.invoke(Reflections.java:21) | at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125) | at org.jboss.seam.Component.callComponentMethod(Component.java:2082) | at org.jboss.seam.Component.unwrap(Component.java:2108) | at org.jboss.seam.Component.getInstance(Component.java:1887) | at org.jboss.seam.Component.getInstance(Component.java:1852) | at org.jboss.seam.Component.getInstance(Component.java:1829) | at org.jboss.seam.Component.getInstance(Component.java:1824) | at org.jboss.seam.bpm.ProcessInstance.instance(ProcessInstance.java:65) | at org.jboss.seam.contexts.BusinessProcessContext.getProcessInstance(BusinessProcessContext.java:218) | at org.jboss.seam.contexts.BusinessProcessContext.getContextInstance(BusinessProcessContext.java:205) | at org.jboss.seam.contexts.BusinessProcessContext.get(BusinessProcessContext.java:56) | at org.jboss.seam.contexts.Contexts.lookupInStatefulContexts(Contexts.java:209) | at org.jboss.seam.Component.getInstance(Component.java:1839) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50) | at org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166) | at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53) | at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:143) | at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:73) | at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44) | at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186) | at org.jboss.seam.core.Expressions$1.getValue(Expressions.java:111) | at org.jboss.seam.ioc.spring.SpringTransaction.begin(SpringTransaction.ja | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4132836#4132836 Reply to the post 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