diff --git a/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/DateTimeChooser.form b/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/DateTimeChooser.form
index db94b61202273ff00336583f32b6b844cc89bf8e..da19e9086ca6824c00c7b7b4fc59c58e527148f1 100644
--- a/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/DateTimeChooser.form
+++ b/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/DateTimeChooser.form
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8" ?>
+<?xml version="1.1" encoding="UTF-8" ?>
 
 <Form version="1.3" maxVersion="1.3" type="org.netbeans.modules.form.forminfo.JPanelFormInfo">
   <AuxValues>
@@ -20,7 +20,7 @@
               <EmptySpace max="-2" attributes="0"/>
               <Group type="103" groupAlignment="0" attributes="0">
                   <Group type="102" alignment="0" attributes="0">
-                      <Component id="calendar" pref="294" max="32767" attributes="1"/>
+                      <Component id="calendar" pref="365" max="32767" attributes="1"/>
                       <EmptySpace max="-2" attributes="0"/>
                   </Group>
                   <Group type="102" alignment="0" attributes="0">
@@ -30,7 +30,7 @@
                   <Group type="102" alignment="1" attributes="0">
                       <Group type="103" groupAlignment="0" attributes="0">
                           <Group type="102" attributes="0">
-                              <Component id="jLabel1" pref="52" max="32767" attributes="0"/>
+                              <Component id="jLabel1" pref="120" max="32767" attributes="0"/>
                               <EmptySpace min="-2" pref="44" max="-2" attributes="0"/>
                           </Group>
                           <Group type="102" alignment="0" attributes="0">
diff --git a/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/DateTimeChooser.java b/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/DateTimeChooser.java
index d69d39889a4cd1e4d5e26cae2bd6968f2c3c2716..cb9b61f2e2218f3e5dda040e36870a34b735188d 100644
--- a/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/DateTimeChooser.java
+++ b/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/DateTimeChooser.java
@@ -42,7 +42,7 @@ import javax.swing.event.EventListenerList;
  * 
  * Minor changes to adepts to  LOFAR
  */
-public class DateTimeChooser 
+public final class DateTimeChooser 
         extends javax.swing.JPanel {
     
 
@@ -340,7 +340,7 @@ public class DateTimeChooser
         try {
             aD=aDate.parse(aS);
         } catch (ParseException ex) {
-            ex.printStackTrace();
+            System.out.println(ex.getMessage());
         }
         DateTimeChooser.this.setDate(aD,false);
     }//GEN-LAST:event_nowActionPerformed
diff --git a/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/inputfieldbuilder/test/inputFieldBuilderTest.form b/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/inputfieldbuilder/test/inputFieldBuilderTest.form
index a16ee166ecf47202f3e8e49060fa08ebca818f17..6aeb13859b98c1a8de2ec0f42717bc5c0a070438 100644
--- a/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/inputfieldbuilder/test/inputFieldBuilderTest.form
+++ b/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/inputfieldbuilder/test/inputFieldBuilderTest.form
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8" ?>
+<?xml version="1.1" encoding="UTF-8" ?>
 
 <Form version="1.5" maxVersion="1.7" type="org.netbeans.modules.form.forminfo.JFrameFormInfo">
   <Properties>
diff --git a/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/inputfieldbuilder/test/inputFieldBuilderTest.java b/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/inputfieldbuilder/test/inputFieldBuilderTest.java
index 33d1360fffc4cfeae13865cfcf4f7dc1f9b0c4d1..4d994b85f6fe7f5af460069bf7b156a8dc557f0f 100644
--- a/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/inputfieldbuilder/test/inputFieldBuilderTest.java
+++ b/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/inputfieldbuilder/test/inputFieldBuilderTest.java
@@ -11,7 +11,6 @@
 
 package nl.astron.lofar.lofarutils.inputfieldbuilder.test;
 
-import javax.swing.JFrame;
 import javax.swing.JPanel;
 
 /**
@@ -126,6 +125,7 @@ public class inputFieldBuilderTest extends javax.swing.JFrame {
     */
     public static void main(String args[]) {
         java.awt.EventQueue.invokeLater(new Runnable() {
+            @Override
             public void run() {
                 new inputFieldBuilderTest().setVisible(true);
             }
diff --git a/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/remoteFile.java b/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/remoteFile.java
index 004cdfd73fe8222f83aa7125521c963ee190ef15..7c69b46b3c98f2488c4c4fc1b83fe774969d63f2 100644
--- a/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/remoteFile.java
+++ b/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/remoteFile.java
@@ -47,6 +47,7 @@ public class remoteFile implements remoteFileInterface{
         itsName=ext;
     }
 
+    @Override
     public boolean deleteTempFile(String aFileName) throws RemoteException {
         if (aFileName != null) {
             try {
@@ -60,7 +61,6 @@ public class remoteFile implements remoteFileInterface{
                 }
             } catch (Exception ex) {
                 System.out.println("RemoteFileImpl: " + ex.getMessage());
-                ex.printStackTrace();
                 return false;
             }
         } else {
@@ -69,6 +69,7 @@ public class remoteFile implements remoteFileInterface{
         }
     }
 
+    @Override
     public byte[] downloadFile(String aFileName) throws RemoteException  {
         if (aFileName != null) {
             try {
@@ -81,7 +82,6 @@ public class remoteFile implements remoteFileInterface{
                 return(buffer);
             } catch (Exception ex) {
                 System.out.println("RemoteFileImpl: " + ex.getMessage());
-                ex.printStackTrace();
                 return(null);
             }
         } else {
@@ -90,6 +90,7 @@ public class remoteFile implements remoteFileInterface{
         }
     }
     
+    @Override
     public boolean uploadFile(byte[] buffer,String aFileName) throws RemoteException  {
         boolean succes=false;
         if (buffer != null && aFileName.length() > 0) {
@@ -103,7 +104,6 @@ public class remoteFile implements remoteFileInterface{
                 return(true);
             } catch (Exception ex) {
                 System.out.println("RemoteFileAdapter: " + ex.getMessage());
-                ex.printStackTrace();
                 return(succes);
             }
         } else {
diff --git a/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/validation/AbstractValidator.java b/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/validation/AbstractValidator.java
index a1a495d54f65569b8b6fd754f66a76d0875b72e9..04fec939e2e41a805c342b85b1af3b08510381fa 100644
--- a/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/validation/AbstractValidator.java
+++ b/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/validation/AbstractValidator.java
@@ -85,6 +85,7 @@ public abstract class AbstractValidator extends InputVerifier implements KeyList
      * validationCriteria() instead.
      */
 
+    @Override
     public boolean verify(JComponent c) {
 //        System.out.println("AbstractValidator-entered verify. Component-"+ c.getName()+" popup.visible: "+popup.isVisible());
         popup.setVisible(false);
@@ -129,6 +130,7 @@ public abstract class AbstractValidator extends InputVerifier implements KeyList
       * @see KeyListener
       */
 
+    @Override
     public void keyPressed(KeyEvent e) {
         checkPopup();
     }
@@ -137,12 +139,14 @@ public abstract class AbstractValidator extends InputVerifier implements KeyList
      * @see KeyListener
      */
 
+    @Override
     public void keyTyped(KeyEvent e) {}
 
     /**
      * @see KeyListener
      */
 
+    @Override
     public void keyReleased(KeyEvent e) {}
 
     public boolean isVisible() {
diff --git a/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/validation/BoolValidator.java b/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/validation/BoolValidator.java
index 19db4313e3b75438d7e14d1930f6c3d4470bebf3..aeedcefa400095b949f94bd6f51720858c845e9f 100644
--- a/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/validation/BoolValidator.java
+++ b/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/validation/BoolValidator.java
@@ -22,6 +22,7 @@ public class BoolValidator extends AbstractValidator {
         super(parent, c, message);
     }
 
+    @Override
     protected boolean validationCriteria(JComponent c) {
         String input = ((JTextField)c).getText();
 
diff --git a/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/validation/BoolVectorValidator.java b/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/validation/BoolVectorValidator.java
index 24ae5ec05f0fd519ddbcc31fa6e5cb42251fa5d8..b873e8ded47b12ba849521413ba90e8e8399146e 100644
--- a/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/validation/BoolVectorValidator.java
+++ b/JAVA/LofarUtils/src/nl/astron/lofar/lofarutils/validation/BoolVectorValidator.java
@@ -21,6 +21,7 @@ public class BoolVectorValidator extends AbstractValidator {
         super(parent, c, "");
     }
 
+    @Override
     protected boolean validationCriteria(JComponent c) {
         String input = ((JTextField)c).getText();