In further digging through the trace logs, I find a whole bunch of ClassCastException prior to the CyclicReferenceException. Any idea what may be causing the ClassCastExceptions?
The error seems to be happening only when there is one or more instance of a particular bean within the object graph. i.e. Person bean is used to generate Person.xml & Person bean has an Address bean as a property. We get the error mainly when there is an address record for a Person. [10/24/06 12:47:52:027 EDT] 3a828432 AbstractBeanW E org.apache.commons.betwixt.io.AbstractBeanWriter [MethodExpression] Cannot evaluate expression [10/24/06 12:47:52:027 EDT] d138432 ORBRas d com.ibm.rmi.iiop.CDROutputStream setStreamFormatVersion:387 Alarm : 1 custom stream format=1 [10/24/06 12:47:52:046 EDT] 3a828432 AbstractBeanW E org.apache.commons.betwixt.io.AbstractBeanWriter TRAS0014I: The following exception was logged java.lang.IllegalArgumentException: [EMAIL PROTECTED] at sun.reflect.GeneratedMethodAccessor464.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java(Compiled Code)) at java.lang.reflect.Method.invoke(Method.java(Compiled Code)) at org.apache.commons.betwixt.expression.MethodExpression.evaluate(MethodExpression.java(Compiled Code)) at org.apache.commons.betwixt.io.AbstractBeanWriter.writeElementContent(AbstractBeanWriter.java(Compiled Code)) at org.apache.commons.betwixt.io.AbstractBeanWriter.writeElement(AbstractBeanWriter.java(Inlined Compiled Code)) at org.apache.commons.betwixt.io.AbstractBeanWriter.writeElementContent(AbstractBeanWriter.java(Compiled Code)) at org.apache.commons.betwixt.io.AbstractBeanWriter.writeElement(AbstractBeanWriter.java(Compiled Code)) at org.apache.commons.betwixt.io.AbstractBeanWriter.writeBean(AbstractBeanWriter.java(Compiled Code)) ... at org.apache.commons.betwixt.io.AbstractBeanWriter.write(AbstractBeanWriter.java:144) at org.apache.commons.betwixt.io.BeanWriter.write(BeanWriter.java:190) . java.lang.IllegalArgumentException: [EMAIL PROTECTED] at sun.reflect.GeneratedMethodAccessor464.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java(Compiled Code)) at java.lang.reflect.Method.invoke(Method.java(Compiled Code)) at org.apache.commons.betwixt.expression.MethodExpression.evaluate(MethodExpression.java(Compiled Code)) at org.apache.commons.betwixt.io.AbstractBeanWriter.writeElementContent(AbstractBeanWriter.java(Compiled Code)) at org.apache.commons.betwixt.io.AbstractBeanWriter.writeElement(AbstractBeanWriter.java(Inlined Compiled Code)) at org.apache.commons.betwixt.io.AbstractBeanWriter.writeElementContent(AbstractBeanWriter.java(Compiled Code)) at org.apache.commons.betwixt.io.AbstractBeanWriter.writeElement(AbstractBeanWriter.java(Compiled Code)) at org.apache.commons.betwixt.io.AbstractBeanWriter.writeBean(AbstractBeanWriter.java(Compiled Code)) ... at org.apache.commons.betwixt.io.AbstractBeanWriter.write(AbstractBeanWriter.java:144) at org.apache.commons.betwixt.io.BeanWriter.write(BeanWriter.java:190) -----Original Message----- From: Rao, Sailesh [mailto:[EMAIL PROTECTED] Sent: Monday, October 23, 2006 3:38 PM To: commons-user@jakarta.apache.org Subject: Betwixt CyclicReferenceException: Bean graph contains a cyclic reference I get a CyclicReferenceException while using Betwixt to write a bean. We get this exception on our development server - websphere 5.1, JDK 1.4.2.5, AIX 5.2, betwixt 0.7, hibernate 3.1. However the same code worked on my local workstation - webshere 5.1, J2RE 1.4.2 , XP version 5.1, betwixt 0.7, hibernate 3.1. We are using .betwixt files for all bean properties that needs to be written. Any ideas?? Thanks Sailesh ---------------------------------------------------------------Exception Trace---------------------------------------------------------------------------------------------------------------------- [10/13/06 8:50:17:980 EDT] 5e3e469a AbstractBeanW E org.apache.commons.betwixt.io.AbstractBeanWriter Cyclic reference at bean: XXXXXXXX [10/13/06 8:50:17:990 EDT] 5e3e469a SystemErr R org.apache.commons.betwixt.io.CyclicReferenceException: Bean graph contains a cyclic reference [10/13/06 8:50:17:991 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.pushBean(AbstractBeanWriter.java:1014) [10/13/06 8:50:17:991 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.writeBean(AbstractBeanWriter.java:348) [10/13/06 8:50:17:991 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.writeBean(AbstractBeanWriter.java:267) [10/13/06 8:50:17:991 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.writeElementContent(AbstractBeanWriter.java:936) [10/13/06 8:50:17:991 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.writeElement(AbstractBeanWriter.java:738) [10/13/06 8:50:17:991 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.writeElementContent(AbstractBeanWriter.java:955) [10/13/06 8:50:17:991 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.writeElement(AbstractBeanWriter.java:738) [10/13/06 8:50:17:991 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.writeBean(AbstractBeanWriter.java:374) [10/13/06 8:50:17:992 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.writeBean(AbstractBeanWriter.java:267) [10/13/06 8:50:17:992 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.writeElementContent(AbstractBeanWriter.java:945) [10/13/06 8:50:17:992 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.writeElement(AbstractBeanWriter.java:738) [10/13/06 8:50:17:992 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.writeBean(AbstractBeanWriter.java:374) [10/13/06 8:50:17:992 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.writeBean(AbstractBeanWriter.java:267) [10/13/06 8:50:17:992 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.writeElementContent(AbstractBeanWriter.java:936) [10/13/06 8:50:17:992 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.writeElement(AbstractBeanWriter.java:738) [10/13/06 8:50:17:992 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.writeBean(AbstractBeanWriter.java:374) [10/13/06 8:50:17:992 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.writeBean(AbstractBeanWriter.java:243) [10/13/06 8:50:17:992 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.AbstractBeanWriter.write(AbstractBeanWriter.java:144) [10/13/06 8:50:17:992 EDT] 5e3e469a SystemErr R at org.apache.commons.betwixt.io.BeanWriter.write(BeanWriter.java:190) ----------------------------------------------------------Code---------------------------------------------------------------------------------------------------------------------- ... outputWriter.write("<?xml version='1.0' ?>"); BeanWriter beanWriter = new BeanWriter(outputWriter); IntrospectionConfiguration introConfig = beanWriter.getXMLIntrospector().getConfiguration(); introConfig.setAttributesForPrimitives(false); introConfig.setMappingDerivationStrategy(MappingDerivationStrategy.USE_INTROSPECTION_TIME_TYPE); introConfig.setWrapCollectionsInElement(true); PropertySuppressionStrategy pss = new PropertySuppressionStrategy() { public boolean suppressProperty(Class clazz, Class type, String name) { if (clazz == com.xxx.yyy.zzz) return true; else return false; } }; introConfig.setPropertySuppressionStrategy(pss); beanWriter.getBindingConfiguration().setMapIDs(false); beanWriter.enablePrettyPrint(); beanWriter.write(this); ... ... ------------------------------------------------------------------Server details--------------------------------------------------------------------------------------------------------------------------------------------- WebSphere Platform 5.1 [ND 5.1.1.11 cf110622.05] [JDK 1.4.2.5 pj9ap32142-20060428] [BASE 5.1.1.11 cf110622.05] running with process name SSE01_CELL\SSE01_w93\BRIT_APP_w93 and process id 749774 Host Operating System is AIX, version 5.2 Java version = J2RE 1.4.2 IBM AIX build ca142-20060421 (SR5) (JIT enabled: jitc), Java Compiler = jitc, Java VM name = Classic VM was.install.root = /usr/WebSphere/SSEServer01 user.install.root = /usr/WebSphere/SSEServer01 Java Home = /usr/WebSphere/SSEServer01/java/jre ws.ext.dirs = /usr/WebSphere/SSEServer01/java/lib:/usr/WebSphere/SSEServer01/classes:/usr/WebSphere/SSEServer01/classes:/usr/WebSphere/SSEServer01/lib:/usr/WebSphere/SSEServer01/lib/ext:/usr/WebSphere/SSEServer01/web/help:/usr/WebSphere/SSEServer01/deploytool/itp/plugins/com.ibm.etools.ejbdeploy/runtime Classpath = /usr/WebSphere/SSEServer01/properties:/usr/WebSphere/SSEServer01/properties:/usr/WebSphere/SSEServer01/lib/bootstrap.jar:/usr/WebSphere/SSEServer01/lib/j2ee.jar:/usr/WebSphere/SSEServer01/lib/lmproxy.jar:/usr/WebSphere/SSEServer01/lib/urlprotocols.jar Java Library path = /usr/WebSphere/SSEServer01/java/jre/bin:/usr/WebSphere/SSEServer01/java/jre/bin/classic:/usr/WebSphere/SSEServer01/java/jre/bin:/usr/WebSphere/SSEServer01/bin:/usr/mqm/java/lib:/usr/opt/wemps/lib:/opt/fitb/db2/db2rtcl/sqllib/lib:/usr/lib --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- This e-mail transmission contains information that is confidential and may be privileged. 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