[jboss-user] [JBoss Seam] - POJOs instantiated twice

[jweidner]

org.jboss.seam.Component.instantiateJavaBean is constructing two instances of all my POJOs.    Is that suppose to happen?   The first one gets instantiated by the first line of instantiateJavaBean.    The second instance is created by org.jboss.seam.Component.wrap.    (I'm new to JSF, Seam, and Facelets, so excuse me if this is a stupid question.)   Here's my constructor:

public Location() {
	System.out.println( "Location constructed.   "   + this  );
	Thread.dumpStack();
}


Below is the line printed and the start of the two stack traces.



Location constructed.  com.aaa.travel.Location at 61a2e7

 java.lang.Exception: Stack trace
     at java.lang.Thread.dumpStack(Thread.java:1158)
     at com.aaa.travel.Location.(Location.java:22)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
     at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
     at java.lang.Class.newInstance0(Class.java:350)
     at java.lang.Class.newInstance(Class.java:303)
     at org.jboss.seam.Component.instantiateJavaBean(Component.java:1045)
     at org.jboss.seam.Component.instantiate(Component.java:1008)
     at org.jboss.seam.Component.newInstance(Component.java:1718)
     at org.jboss.seam.Component.getInstance(Component.java:1625)
     at org.jboss.seam.Component.getInstance(Component.java:1592)
     at org.jboss.seam.jsf.SeamVariableResolver.resolveVariable(SeamVariableResolver.java:46)
     at org.apache.myfaces.config.LastVariableResolverInChain.resolveVariable(LastVariableResolverInChain.java:42
)
     at org.apache.myfaces.el.ValueBindingImpl$ELVariableResolver.resolveVariable(ValueBindingImpl.java:574)
     at org.apache.commons.el.NamedValue.evaluate(NamedValue.java:124)
     at org.apache.myfaces.el.ValueBindingImpl.resolveToBaseAndProperty(ValueBindingImpl.java:455)
     at org.apache.myfaces.el.ValueBindingImpl.getType(ValueBindingImpl.java:172)
     at org.jboss.seam.core.Expressions$1.getType(Expressions.java:46)
     at org.jboss.seam.core.Page$PageParameter.getConverter(Page.java:48)
     at org.jboss.seam.core.Pages.applyRequestParameterValues(Pages.java:523)
     at org.jboss.seam.jsf.AbstractSeamPhaseListener.beforeRender(AbstractSeamPhaseListener.java:186)
     at org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:51)
)



Location constructed.  com.aaa.travel.Location$$EnhancerByCGLIB$$771353c0 at abf658

 java.lang.Exception: Stack trace
     at java.lang.Thread.dumpStack(Thread.java:1158)
     at com.aaa.travel.Location.(Location.java:22)
     at com.aaa.travel.Location$$EnhancerByCGLIB$$771353c0.()
     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
     at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
     at java.lang.Class.newInstance0(Class.java:350)
     at java.lang.Class.newInstance(Class.java:303)
     at org.jboss.seam.Component.wrap(Component.java:1065)
     at org.jboss.seam.Component.instantiateJavaBean(Component.java:1054)
     at org.jboss.seam.Component.instantiate(Component.java:1008)
     at org.jboss.seam.Component.newInstance(Component.java:1718)
     at org.jboss.seam.Component.getInstance(Component.java:1625)
     at org.jboss.seam.Component.getInstance(Component.java:1592)
     at org.jboss.seam.jsf.SeamVariableResolver.resolveVariable(SeamVariableResolver.java:46)
     at org.apache.myfaces.config.LastVariableResolverInChain.resolveVariable(LastVariableResolverInChain.java:42
)


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