Index: cocoon-sitemap/src/main/java/org/apache/cocoon/sitemap/SpringComponentProvider.java
===================================================================
--- cocoon-sitemap/src/main/java/org/apache/cocoon/sitemap/SpringComponentProvider.java	(revisión: 1300236)
+++ cocoon-sitemap/src/main/java/org/apache/cocoon/sitemap/SpringComponentProvider.java	(copia de trabajo)
@@ -42,7 +42,7 @@
      * 
      * @see org.apache.cocoon.sitemap.ComponentProvider#createAction(java.lang.String)
      */
-    public Action createAction(String type) {
+    public synchronized Action createAction(String type) {
         return this.actionFactory.createAction(type);
     }
 
@@ -51,7 +51,7 @@
      * 
      * @see org.apache.cocoon.sitemap.ComponentProvider#createComponent(java.lang.String)
      */
-    public PipelineComponent createComponent(String type) {
+    public synchronized PipelineComponent createComponent(String type) {
         return this.pipelineComponentFactory.createComponent(type);
     }
 
@@ -60,11 +60,11 @@
      * 
      * @see org.apache.cocoon.sitemap.ComponentProvider#createPipeline(java.lang.String)
      */
-    public Pipeline<PipelineComponent> createPipeline(String type) {
+    public synchronized Pipeline<PipelineComponent> createPipeline(String type) {
         return this.pipelineFactory.createPipeline(type);
     }
 
-    public LanguageInterpreter getLanguageInterpreter(String language) {
+    public synchronized LanguageInterpreter getLanguageInterpreter(String language) {
         return this.languageInterpreterFactory.getLanguageInterpreter(language);
     }