Merge branch 'master' into lor6-patch-3

core-java/README.md

@@ -140,3 +140,4 @@
 - [Introduction to SSL in Java](http://www.baeldung.com/java-ssl)
 - [Java KeyStore API](http://www.baeldung.com/java-keystore)
 - [Using Java Assertions](http://www.baeldung.com/java-assert)
+- [Guide to Java Clock Class](http://www.baeldung.com/java-clock)

core-java/src/main/java/com/baeldung/stringisnumeric/IsNumericDriver.java

@@ -1,12 +1,13 @@
 package com.baeldung.stringisnumeric;
 
-import static com.baeldung.designpatterns.util.LogerUtil.LOG;
+import org.apache.log4j.Logger;
 
 public class IsNumericDriver {
     private static IsNumeric isNumeric;
-    
+    private static Logger LOG = Logger.getLogger(IsNumericDriver.class);
     static {
         isNumeric =new IsNumeric();
+        
     }
     
     public static void main(String[] args) {