cannot create new knowledge base (package/directory)

[odalabasmaz]

I want to create new knowledge base and add rules into it programmatically by using Sardine.
I am able to add new rules into existing directory but I cannot create a new directory.

sardine.createDirectory() calls MKCOL HTTP method and it returns HTTP 200 OK but on server logs of guvnor it raises an error as;

Aug 19, 2016 10:35:01 PM org.drools.repository.RulesRepository loadPackage
SEVERE: Unable to load a rule package. 
javax.jcr.PathNotFoundException: SardineTestPack

Server access logs seems ok;
"MKCOL /guvnor/org.drools.guvnor.Guvnor/webdav/packages/SardineTestPack/ HTTP/1.1" 200 0

I'm using;

• Guvnor v5.3.1
• Sardine v5.7

What am I doing wrong ?

private final String url = "http://localhost:7099/guvnor/org.drools.guvnor.Guvnor/webdav/packages/";
private final String username = "";
private final String password = "";

// WORKS
private void addARule() throws IOException {
   Sardine sardine = SardineFactory.begin(username, password);
   String ruleDescription = " ... ";
   byte[] data = ruleDescription.getBytes();
   sardine.put(url + "Sardine/SimpleDRLRule.drl", data);
   System.out.println("Rule added ...");
}

// NOT WORKING
private void createPackage() throws IOException {
   Sardine sardine = SardineFactory.begin(username, password);
   sardine.createDirectory(url + "SardineTestPack/");
   System.out.println("new package created.");
}

I read other issues but couldn't find an answer. Hope you could help me.
Thanks.