diff --git a/pom.xml b/pom.xml
index 703684b..bf5e491 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,7 +21,7 @@
 	
 	<groupId>org.gcube.resources</groupId>
 	<artifactId>registry-publisher</artifactId>
-	<version>1.3.0-SNAPSHOT</version>
+	<version>1.3.1-SNAPSHOT</version>
 
 	<dependencies>
 
diff --git a/src/main/java/org/gcube/informationsystem/publisher/stubs/registry/CollectorStubs.java b/src/main/java/org/gcube/informationsystem/publisher/stubs/registry/CollectorStubs.java
index 71406e2..1181337 100644
--- a/src/main/java/org/gcube/informationsystem/publisher/stubs/registry/CollectorStubs.java
+++ b/src/main/java/org/gcube/informationsystem/publisher/stubs/registry/CollectorStubs.java
@@ -40,7 +40,7 @@ public class CollectorStubs implements RegistryStub {
 		StringBuilder callUrl = new StringBuilder(endopoint).append("/").append(type);
 		try {
 			URL url = new URL(callUrl.toString());
-			HttpURLConnection connection = makeRequest(url, "POST", false);
+			HttpURLConnection connection = makeRequest(url, "POST");
 			connection.setDoOutput(true);
 			connection.setRequestProperty("Content-type", "text/xml");
 
@@ -63,7 +63,7 @@ public class CollectorStubs implements RegistryStub {
 		StringBuilder callUrl = new StringBuilder(endopoint).append("/").append(type).append("/").append(id);
 		try {
 			URL url = new URL(callUrl.toString());
-			HttpURLConnection connection = makeRequest(url, "PUT", false);
+			HttpURLConnection connection = makeRequest(url, "PUT");
 			connection.setDoOutput(true);
 			connection.setRequestProperty("Content-type", "text/xml");
 
@@ -85,7 +85,7 @@ public class CollectorStubs implements RegistryStub {
 		StringBuilder callUrl = new StringBuilder(endopoint).append("/").append(type).append("/").append(id);
 		try {
 			URL url = new URL(callUrl.toString());
-			HttpURLConnection connection = makeRequest(url, "DELETE", false);
+			HttpURLConnection connection = makeRequest(url, "DELETE");
 			connection.setDoInput(true);		
 			if (connection.getResponseCode()!=200){
 				log.info("response code is not 200");
@@ -99,19 +99,18 @@ public class CollectorStubs implements RegistryStub {
 
 
 
-	private HttpURLConnection makeRequest(URL url, String method, boolean includeTokenInHeader) throws Exception{
+	private HttpURLConnection makeRequest(URL url, String method) throws Exception{
 		HttpURLConnection connection;
 		if (url.toString().startsWith("https://"))
 			connection = (HttpsURLConnection)url.openConnection();
 		else connection = (HttpURLConnection)url.openConnection();
 
-		if (includeTokenInHeader){
-			if (SecurityTokenProvider.instance.get()==null) throw new RuntimeException("null token passed");
+		if (SecurityTokenProvider.instance.get()!=null) 
 			connection.setRequestProperty(TOKEN_HEADER_ENTRY,SecurityTokenProvider.instance.get());
-		} else {
-			if (ScopeProvider.instance.get()==null) throw new RuntimeException("null scope passed");
+		else if (ScopeProvider.instance.get()!=null) 
 			connection.setRequestProperty(SCOPE_HEADER_ENTRY,ScopeProvider.instance.get());
-		}
+		else throw new RuntimeException("Collector requires authorization (via token or scope)");
+				
 		connection.setRequestMethod(method);
 		return connection;
 	}		
diff --git a/src/test/java/org/gcube/informationsystem/publisher/GCoreEndpointPublisherTests.java b/src/test/java/org/gcube/informationsystem/publisher/GCoreEndpointPublisherTests.java
index b75f54e..63ce882 100644
--- a/src/test/java/org/gcube/informationsystem/publisher/GCoreEndpointPublisherTests.java
+++ b/src/test/java/org/gcube/informationsystem/publisher/GCoreEndpointPublisherTests.java
@@ -2,6 +2,8 @@ package org.gcube.informationsystem.publisher;
 
 import static org.gcube.common.resources.gcore.Resources.print;
 import static org.junit.Assert.*;
+
+import org.gcube.common.authorization.library.provider.SecurityTokenProvider;
 import org.gcube.common.resources.gcore.GCoreEndpoint;
 import org.gcube.common.resources.gcore.Resource;
 import org.gcube.common.resources.gcore.Resource.Type;
@@ -14,38 +16,39 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 public class GCoreEndpointPublisherTests {
-	
+
 	private static final Logger log = LoggerFactory.getLogger(RegistryPublisherTests.class);
 	static GCoreEndpoint running;
 	static RegistryPublisher rp;
 	static Resource r;
-	
+
 	@BeforeClass
 	public static void init(){
-//		ScopeProvider.instance.set("/d4science.research-infrastructures.eu/EUBrazilOpenBio");
+		//		ScopeProvider.instance.set("/d4science.research-infrastructures.eu/EUBrazilOpenBio");
 		ScopeProvider.instance.set("/gcube/devNext");
-		running = Resources.unmarshal(GCoreEndpoint.class, PublisherTest.class.getClassLoader().getResourceAsStream("gCoreEndpoint.xml"));
+		SecurityTokenProvider.instance.set("52b59669-ccde-46d2-a4da-108b9e941f7c-98187548");
 		rp=RegistryPublisherFactory.create();
 	}
-	
+
 	@Test
 	public void printTest(){
-		print(running);
-	//resource-specific tests
+		//print(running);
+		//resource-specific tests
 		assertEquals(Type.GCOREENDPOINT,running.type());
 	}
-	
+
 	@Test
 	public void registerCreate(){
-		r=rp.create(running);
-		System.out.println("new resource created: ");
-		if(r!=null)
-			print(r);
-		assertEquals(running,r);
+		
+		for (int i = 0; i<10; i++) {
+			running = Resources.unmarshal(GCoreEndpoint.class, PublisherTest.class.getClassLoader().getResourceAsStream("gCoreEndpoint.xml"));
+			r=rp.create(running);
+			System.out.println("new resource created: "+r.id());
+		}
 	}
-	
-	
-	@AfterClass
+
+
+	/*@AfterClass
 	public static void forceDeleteResource(){
 		try {
 			Thread.sleep(3000);
@@ -59,8 +62,8 @@ public class GCoreEndpointPublisherTests {
 		advancedPublisher.forceRemove(r);
 		ScopeProvider.instance.set(currentScope);
 
-		
-	}
-	
+
+	}*/
+
 }
 
diff --git a/src/test/resources/gCoreEndpoint.xml b/src/test/resources/gCoreEndpoint.xml
index ca88ff4..ba23aea 100644
--- a/src/test/resources/gCoreEndpoint.xml
+++ b/src/test/resources/gCoreEndpoint.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <Resource version="0.4.x">
-<ID>5d244ab0-9d79-11e3-af18-dd5904b11dd6</ID>
+<ID></ID>
    <Type>RunningInstance</Type>
    <Scopes>
    </Scopes>