diff --git a/examples/org.eclipse.statet.rj.example.rcpdemo1/src/org/eclipse/statet/internal/rj/example/rcpdemo/Activator.java b/examples/org.eclipse.statet.rj.example.rcpdemo1/src/org/eclipse/statet/internal/rj/example/rcpdemo/Activator.java
index 14220d3..e14333f 100644
--- a/examples/org.eclipse.statet.rj.example.rcpdemo1/src/org/eclipse/statet/internal/rj/example/rcpdemo/Activator.java
+++ b/examples/org.eclipse.statet.rj.example.rcpdemo1/src/org/eclipse/statet/internal/rj/example/rcpdemo/Activator.java
@@ -16,9 +16,12 @@
 
 import org.osgi.framework.BundleContext;
 
+import org.eclipse.core.runtime.Assert;
 import org.eclipse.jface.resource.ImageDescriptor;
 import org.eclipse.ui.plugin.AbstractUIPlugin;
 
+import org.eclipse.statet.ecommons.runtime.core.ECommonsRuntimeCore;
+
 import org.eclipse.statet.rj.eclient.graphics.comclient.ERGraphicFactory;
 import org.eclipse.statet.rj.example.rcpdemo.RServiManager;
 
@@ -71,6 +74,8 @@
 	public void start(final BundleContext context) throws Exception {
 		super.start(context);
 		instance= this;
+		
+		Assert.isNotNull(ECommonsRuntimeCore.class);
 	}
 	
 	@Override
diff --git a/examples/org.eclipse.statet.rj.example.rcpdemo2/src/org/eclipse/statet/internal/rj/example/rcpdemo/Activator.java b/examples/org.eclipse.statet.rj.example.rcpdemo2/src/org/eclipse/statet/internal/rj/example/rcpdemo/Activator.java
index a6e0dc6..461f8ee 100644
--- a/examples/org.eclipse.statet.rj.example.rcpdemo2/src/org/eclipse/statet/internal/rj/example/rcpdemo/Activator.java
+++ b/examples/org.eclipse.statet.rj.example.rcpdemo2/src/org/eclipse/statet/internal/rj/example/rcpdemo/Activator.java
@@ -16,11 +16,14 @@
 
 import org.osgi.framework.BundleContext;
 
+import org.eclipse.core.runtime.Assert;
 import org.eclipse.jface.resource.ImageDescriptor;
 import org.eclipse.ui.plugin.AbstractUIPlugin;
 
 import org.eclipse.statet.jcommons.lang.Disposable;
 
+import org.eclipse.statet.ecommons.runtime.core.ECommonsRuntimeCore;
+
 import org.eclipse.statet.rj.eclient.graphics.comclient.ERGraphicFactory;
 import org.eclipse.statet.rj.example.rcpdemo.RServiManager;
 
@@ -73,6 +76,8 @@
 	public void start(final BundleContext context) throws Exception {
 		super.start(context);
 		instance= this;
+		
+		Assert.isNotNull(ECommonsRuntimeCore.class);
 	}
 	
 	@Override