diff --git a/DBTools.java b/dbtools/DBTools.java
similarity index 94%
rename from DBTools.java
rename to dbtools/DBTools.java
index c9800b3..bc60d7d 100644
--- a/DBTools.java
+++ b/dbtools/DBTools.java
@@ -53,28 +53,28 @@ public class DBTools {
         //if($t=='object' && (strtoupper($v)!='NULL' && gettype($v)=='string')) $t='string'; //Если id шники uuid
 
         if (t.equals("object") || t.equals("uid")) {
-            if (v.equals(""))
+            if (v.isEmpty())
                 v = "NULL";
         } else if (t.equals("i4") || t.equals("integer")) {
-            if (v.equals(""))
+            if (v.isEmpty())
                 v = "NULL";
         } else if (t.equals("f8")) {
-            if (v.equals(""))
+            if (v.isEmpty())
                 v = "NULL";
             v = Tools.replaceAll(v,",", "."); //The decimal part: point.
         } else if (t.equals("f4")) {
-            if (v.equals(""))
+            if (v.isEmpty())
                 v = "NULL";
             v = Tools.replaceAll(v,",", "."); //The decimal part: point.
         } else if (t.equals("b")) {
-            if (v.equals(""))
+            if (v.isEmpty())
                 v = "NULL";
             else if (v.equals("1"))
                 v = "true";
             else if (v.equals("0"))
                 v = "false";
         } else if (t.equals("string") || t.equals("text") || t.equals("dateTime") || t.equals("date")) {
-            if (v.equals("")) {
+            if (v.isEmpty()) {
                 v = "NULL";
             } else {
                 v = Tools.replaceAll(v,"'", "''");
diff --git a/tctable/TCField.java b/tctable/TCField.java
index 4b37b3d..7b55cb6 100644
--- a/tctable/TCField.java
+++ b/tctable/TCField.java
@@ -494,7 +494,7 @@ public class TCField
 		}else if(type== TCField.BD_UTF8_1 || type== TCField.BD_UTF8_1_UUID || type== TCField.BD_UTF8_1_TIMESTAMP || this.type== TCField.BD_SUINT8 || this.type== TCField.BD_SINT8 || this.type== TCField.BD_SFLOAT8)
 		{
 			value=null;
-			if(val!=null && !val.equals(""))
+			if(val!=null && !val.isEmpty())
 			{
 				byte[] b=null;
 				try {
@@ -517,7 +517,7 @@ public class TCField
 		}else if(type== TCField.BD_UTF8_2)
 		{
 			value=null;
-			if(val!=null && !val.equals(""))
+			if(val!=null && !val.isEmpty())
 			{
 				byte[] b=null;
 				try {
@@ -541,7 +541,7 @@ public class TCField
 		}else if(type== TCField.BD_UTF8_4 || type== TCField.BD_UTF8_4_JSONB)
 		{
 			value=null;
-			if(val!=null && !val.equals(""))
+			if(val!=null && !val.isEmpty())
 			{
 				byte[] b=null;
 				try {
diff --git a/tctable/Tools.java b/tctable/Tools.java
index b2fc07a..a570fca 100644
--- a/tctable/Tools.java
+++ b/tctable/Tools.java
@@ -123,8 +123,7 @@ public class Tools {
 		try {
 			InetAddress ipAddr = InetAddress.getByName("google.com");
 			//InetAddress ipAddr = InetAddress.getByName("geovizor.com");
-			//You can replace it with your name
-			return !ipAddr.equals("");
+			return ipAddr.isReachable(5000);
 		} catch (Exception ex) {
 			return false;
 		}
@@ -1042,10 +1041,10 @@ public class Tools {
 				if((str.charAt(i)=='-' && (val.length()==0 || val.charAt(0)!='-'))  || str.charAt(i)=='0' || str.charAt(i)=='1' || str.charAt(i)=='2' || str.charAt(i)=='3' || str.charAt(i)=='4' || str.charAt(i)=='5' || str.charAt(i)=='6' || str.charAt(i)=='7' || str.charAt(i)=='8' || str.charAt(i)=='9')
 					val.append(str.charAt(i));
 			}
-			if(val.toString().equals("")) return 0;
+			if(val.toString().isEmpty()) return 0;
 			return Integer.parseInt(val.toString());
 		}
-		if(str.equals("")) return 0;
+		if(str.isEmpty()) return 0;
 		return Integer.parseInt(str);
 	}
 	//---------------------------------------------------------------------------
diff --git a/xml/XMLIO.java b/xmltools/XMLIO.java
similarity index 98%
rename from xml/XMLIO.java
rename to xmltools/XMLIO.java
index 9599869..901b0b2 100644
--- a/xml/XMLIO.java
+++ b/xmltools/XMLIO.java
@@ -1,4 +1,4 @@
-package tools.xml;
+package tools.xmltools;
 
 import org.w3c.dom.Document;
 import org.xml.sax.SAXException;
diff --git a/xml/XMLTools.java b/xmltools/XMLTools.java
similarity index 89%
rename from xml/XMLTools.java
rename to xmltools/XMLTools.java
index 9bff8bf..fdd1daf 100644
--- a/xml/XMLTools.java
+++ b/xmltools/XMLTools.java
@@ -1,4 +1,4 @@
-package tools.xml;
+package tools.xmltools;
 
 import javax.xml.parsers.ParserConfigurationException;
 import javax.xml.xpath.XPath;
@@ -152,24 +152,6 @@ public class XMLTools
         return lsSerializer.writeToString(node);
     }
 
-	/** Найти узел по атрибуту
-	 */
-	public static Node findNodeOnAttribute(Node node, String nodename, String attribute, String val)
-	{
-		if(node==null) return null;
-		NodeList items = node.getChildNodes();
-		for (int i=0;i<items.getLength();i++)
-		{
-			Node n=items.item(i);
-			if(n.getNodeName().equals(nodename))
-			{
-				NamedNodeMap nnm=n.getAttributes();
-	        	if(nnm.getNamedItem(attribute).getNodeValue().equals(val)) return n;   
-			}
-		}
-		return null;
-	}
-
 	public static Node findFirstNodeOnAttribute(Node node, String nodename,String attribute,String val)
 	{
 		Node result=null;
@@ -182,7 +164,7 @@ public class XMLTools
 			expr = xpath.compile("//*/"+nodename+"[@"+attribute+"='" + val + "']");
 			exprResult = expr.evaluate(node, XPathConstants.NODESET);
 		} catch (XPathExpressionException ex) {
-			
+
 		}
 		NodeList nodeList = (NodeList) exprResult;
 		if (nodeList.getLength() > 0)
@@ -255,26 +237,6 @@ public class XMLTools
 		return null;
 	}
 
-	public static Node findFirstNodeOnAttribute(Node node, String nodename,String attribute,String val)
-	{
-		Node result=null;
-		if(node==null) return result;
-		javax.xml.xpath.XPathFactory xPathfactory = javax.xml.xpath.XPathFactory.newInstance();
-		XPath xpath = xPathfactory.newXPath();
-		XPathExpression expr=null;
-		Object exprResult=null;
-		try {
-			expr = xpath.compile("//*/"+nodename+"[@"+attribute+"='" + val + "']");
-			exprResult = expr.evaluate(node, XPathConstants.NODESET);
-		} catch (XPathExpressionException ex) {
-			
-		}
-		NodeList nodeList = (NodeList) exprResult;
-		if (nodeList.getLength() > 0)
-			result = nodeList.item(0);
-		return result;
-	}
-
 	/**
 	 * Присвоить дочерние узлы первого дерева второму если их нет, иначе дополнить либо заменить. (Работает через рекурсию нужно для передачи параметров между окнами)
 	 * @param {XML} first Узел где ханятся настройки