この問題には 2 つの部分があります。1つはprimefaces側にあります。評価された値を、ValueExpression ではなく、UIInput の label 属性に設定します。したがって、すべてのデータは同じラベルを使用します。2 つ目は、互換性の問題です。Myfaces 2.1.9 は JSF2.1 でありComponent、VisitHint.SKIP_ITERATION. Omnifaces はサポートしていません。これは Omnifaces を機能させるパッチです。
diff -r 0c0b57aa6780 src/org/omnifaces/component/tree/TreeInsertChildren.java
--- a/src/org/omnifaces/component/tree/TreeInsertChildren.java  Fri Nov 30 12:39:03 2012 -0400
+++ b/src/org/omnifaces/component/tree/TreeInsertChildren.java  Sun Dec 02 14:56:02 2012 +0800
@@ -16,6 +16,7 @@
 import javax.faces.component.UIComponent;
 import javax.faces.component.visit.VisitCallback;
 import javax.faces.component.visit.VisitContext;
+import javax.faces.component.visit.VisitHint;
 import javax.faces.context.FacesContext;
 import javax.faces.event.PhaseId;
@@ -66,6 +67,11 @@
     */
    @Override
    public boolean visitTree(VisitContext context, VisitCallback callback) {
+       Boolean skipIterationHint = context.getHints().contains(VisitHint.SKIP_ITERATION);
+       if (skipIterationHint != null && skipIterationHint.booleanValue())
+       {
+           return super.visitTree(context, callback);
+       }
        return Components.getClosestParent(this, Tree.class).visitTreeNode(context, callback);
    }
diff -r 0c0b57aa6780 src/org/omnifaces/component/tree/TreeNodeItem.java
--- a/src/org/omnifaces/component/tree/TreeNodeItem.java    Fri Nov 30 12:39:03 2012 -0400
+++ b/src/org/omnifaces/component/tree/TreeNodeItem.java    Sun Dec 02 14:56:02 2012 +0800
@@ -18,6 +18,7 @@
 import javax.faces.component.UIComponent;
 import javax.faces.component.visit.VisitCallback;
 import javax.faces.component.visit.VisitContext;
+import javax.faces.component.visit.VisitHint;
 import javax.faces.context.FacesContext;
 import javax.faces.event.PhaseId;
@@ -119,6 +120,12 @@
    @Override
    @SuppressWarnings({ "rawtypes", "unchecked" }) // For TreeModel. We don't care about its actual type anyway.
    public boolean visitTree(final VisitContext context, final VisitCallback callback) {
+       
+       Boolean skipIterationHint = context.getHints().contains(VisitHint.SKIP_ITERATION);
+       if (skipIterationHint != null && skipIterationHint.booleanValue())
+       {
+           return super.visitTree(context, callback);
+       }
        if (!isVisitable(context) || getChildCount() == 0) {
            return false;
        }
アップデート:
このパッチには、コンパイル時の JSF 2.0 との互換性があります。
diff -r 0c0b57aa6780 src/org/omnifaces/component/tree/TreeFamily.java
--- a/src/org/omnifaces/component/tree/TreeFamily.java  Fri Nov 30 12:39:03 2012 -0400
+++ b/src/org/omnifaces/component/tree/TreeFamily.java  Mon Dec 03 09:33:00 2012 +0800
@@ -16,6 +16,8 @@
 import javax.faces.FacesException;
 import javax.faces.component.UIComponentBase;
+import javax.faces.component.visit.VisitContext;
+import javax.faces.component.visit.VisitHint;
 import javax.faces.context.FacesContext;
 import javax.faces.event.PhaseId;
@@ -136,4 +138,24 @@
        }
    }
+   /**
+    * 
+    * <a href="http://java.net/jira/browse/JAVASERVERFACES_SPEC_PUBLIC-545" >JSF Spec</a>
+    * @param context The faces context
+    * @param visitContext the visit tree context
+    * @return
+    */
+   boolean isSkippingIteration(final VisitContext visitContext) {
+       //
+       try {
+           //JSF 2.1
+           VisitHint skipHint = VisitHint.valueOf("SKIP_ITERATION");
+           return visitContext.getHints().contains(skipHint);
+       }
+       catch(IllegalArgumentException e) {
+           //JSF 2.0
+           Object skipHint = visitContext.getFacesContext().getAttributes().get("javax.faces.visit.SKIP_ITERATION");
+           return Boolean.TRUE.equals(skipHint);
+       }
+   }
 }
\ No newline at end of file
diff -r 0c0b57aa6780 src/org/omnifaces/component/tree/TreeInsertChildren.java
--- a/src/org/omnifaces/component/tree/TreeInsertChildren.java  Fri Nov 30 12:39:03 2012 -0400
+++ b/src/org/omnifaces/component/tree/TreeInsertChildren.java  Mon Dec 03 09:33:00 2012 +0800
@@ -66,6 +66,9 @@
     */
    @Override
    public boolean visitTree(VisitContext context, VisitCallback callback) {
+       if (isSkippingIteration(context)) {
+           return super.visitTree(context, callback);
+       }
        return Components.getClosestParent(this, Tree.class).visitTreeNode(context, callback);
    }
diff -r 0c0b57aa6780 src/org/omnifaces/component/tree/TreeNodeItem.java
--- a/src/org/omnifaces/component/tree/TreeNodeItem.java    Fri Nov 30 12:39:03 2012 -0400
+++ b/src/org/omnifaces/component/tree/TreeNodeItem.java    Mon Dec 03 09:33:00 2012 +0800
@@ -119,6 +119,10 @@
    @Override
    @SuppressWarnings({ "rawtypes", "unchecked" }) // For TreeModel. We don't care about its actual type anyway.
    public boolean visitTree(final VisitContext context, final VisitCallback callback) {
+       if (isSkippingIteration(context)) {
+           return super.visitTree(context, callback);
+       }
+       
        if (!isVisitable(context) || getChildCount() == 0) {
            return false;
        }