removed not needed import not compatible with JDK 11
package com.orientechnologies.orient.core.db;
-import com.orientechnologies.orient.core.db.document.ODatabaseDocument;
import com.orientechnologies.orient.core.util.OURLConnection;
import com.orientechnologies.orient.core.util.OURLHelper;
-import com.sun.org.omg.SendingContext.CodeBasePackage.URLHelper;
/**
* A Pool of databases.
