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diff --git a/runtime/org.argeo.slc.core/src/main/java/org/argeo/slc/core/execution/ParameterRef.java b/runtime/org.argeo.slc.core/src/main/java/org/argeo/slc/core/execution/ParameterRef.java
deleted file mode 100644
index 5a9d9adcf..000000000
--- a/runtime/org.argeo.slc.core/src/main/java/org/argeo/slc/core/execution/ParameterRef.java
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * Copyright (C) 2007-2012 Argeo GmbH
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *         http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.argeo.slc.core.execution;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.springframework.beans.factory.FactoryBean;
-
-public class ParameterRef implements FactoryBean {
-	private final static Log log = LogFactory.getLog(ParameterRef.class);
-
-	private InstantiationManager instantiationManager;
-	private String name;
-
-	/** Cached object. */
-	private Object object;
-
-	public ParameterRef() {
-	}
-
-	public ParameterRef(String name) {
-		this.name = name;
-	}
-
-	public Object getObject() throws Exception {
-		if (log.isTraceEnabled())
-			log.debug("Parameter ref called for " + name);
-
-		if (object == null)
-			object = instantiationManager.getInitializingFlowParameter(name);
-		return object;
-	}
-
-	public Class<?> getObjectType() {
-		if (object == null)
-			return instantiationManager.getInitializingFlowParameterClass(name);
-		else
-			return object.getClass();
-	}
-
-	public boolean isSingleton() {
-		return true;
-	}
-
-	public void setInstantiationManager(
-			InstantiationManager instantiationManager) {
-		this.instantiationManager = instantiationManager;
-	}
-
-	public void setName(String name) {
-		this.name = name;
-	}
-
-}