3 Replies Latest reply on Jan 9, 2007 9:49 AM by John Weidner

    POJOs instantiated twice

    John Weidner Newbie

      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@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@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
      )