A strange java project transplantation problem

I am writing a java project using eclipse to crawl webpages.
After I got everyting about the project well on my machine,
I try to transplant it to the server(also Windows XP OS) which
uses the same JDK(jdk1.6.0_05) and development tool(eclipse).
However to my surprise on the server side eclipse hints there are syntactial errors.
And the errors seem very puzzling.
        Long currentTime=new Long(getCurrentTime());
Thread.sleep(1000); //Time to wait
Long launchTime=new Long(getCurrentTime());
while(true)
        currentTime=Long.parseLong(getCurrentTime());
        if(currentTime>launchTime)
private static String getCurrentTime()
return new SimpleDateFormat("yyyyMMddHHmmss").format(new Date(System.currentTimeMillis()));
}for
currentTime=Long.parseLong(getCurrentTime());it hints
Type mismatch: Can not convert Long to Long.However getCurrentTime() retruns String
for
if(currentTime>launchTime)it hints
The operator > is undefined for the argument type(s) java.lang.Long, java.lang.LongTo me, it's quite strange.
What's wrong with it?
Thanks!

First I must say sorry for my late thanks to your above guys' enthusiastic helps and replies.
I have an outing last 2 days and it causes me unable to view this thread timely.
Thank evilknightthk. Your modified codes work. But I missed another error in my last reply.
That is
ArrayList<String> threadCluster=new ArrayList<String>();It also hints error:
for ArrayList
The type ArrayList is not generic; it can not be parameterized with arguments with <String>.for <String>
Syntax error, parameterized types are only available if source level is 5.0I checked the auto(un)boxing from the window-->preferences-->...
But seems it doesn't help, error are still there.
Thanks again for your guys. You all are very kind. :-)

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Java Project-----Code Problems

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class Owner
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     public String Address;
     public String town;
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          head = temp;
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          String result = temp.next.readName();
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          while(temp != null)
               temp.printOwnerDetails();
               System.out.println();
               temp = temp.next;
     public boolean searchList(String s)
          Owner temp = head;
          while(temp != null)
               if(temp.name.equals(s))
                    return true;
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class Account
     public int numonloan;
     public int id_num;
public Owner memberdetails;
     public int numweeks;
public Account next;
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          int numonloan=0;
          int id_num=i;
          Owner memberdetails= o;
          int numweeks=0;
     public check_OnLoan( int numonloan, int id_num, owner memberdetails, int numweeks)
          numonloan=0;
          id_num=a.id_num;
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          numweeks=0;
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     public borrow(){};
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          numOfWeeks = 0;
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class AccountLinkedList
     private Account head;
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          temp.next = head;
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          if(head.next == null)
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               head = null;
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          Account temp = head;
          while(temp.next.next != null)
               temp = temp.next;
          String result = temp.next.readName();
          temp.next = null;
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          Account temp = head;
          while(temp != null)
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          String street =" ";
          String town =" ";
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     street = in.readLine();
     System.out.println(" Enter Owner town : ");
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          String street =" ";
          String town =" ";
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     System.out.println(" Enter Owner Street : ");
     street = in.readLine();
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     town = in.readline();
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main.......im very confused....only been doing java 3 months....well the problem is main getting it all hooked up with switch statement...to call the whole thing....eg 1: open account
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i have bits and peices done of it.....but trying to get it to make sence......as you can see im very poor at java.....and need all the help i can get.....so any advice would be nice ....thanx

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Mapping Workbench Java Project Export Exception

Hello,
We're using TopLink Workbench 9.0.4.1 build 040128
We are experiencing exceptions when we try to export our Mapping Workbench Project as a java project file. (We have never had this problem before).
I fear we may have somehow corrupted the TopLink mapping project file(s) when we were last editing them. We can open the project file and all mappings and tables look clean. However, when we try to export the java project file we get an exception (see the stack trace below).
Is there any way to recover our project file? We had made a lot of changes before noticing the problem with the java project generation. It would be a lot of work to go back to our last good back-up copy and apply the updates all over again.
Here's the stack trace from the Workbench when trying to export the java project file:
java.lang.NullPointerException
     at oracle.toplink.workbench.persistence.MWProjectToRuntimeProjectConverter.convertAggregatePathToFieldIntoTranslationDictionaries(MWProjectToRuntimeProjectConverter.java:189)
     at oracle.toplink.workbench.persistence.MWProjectToRuntimeProjectConverter.convertMappings(MWProjectToRuntimeProjectConverter.java:715)
     at oracle.toplink.workbench.persistence.MWProjectToRuntimeProjectConverter.convert(MWProjectToRuntimeProjectConverter.java:74)
     at oracle.toplink.workbench.model.MWProject.exportJavaSource(MWProject.java:885)
     at oracle.toplink.workbench.model.MWProject.exportJavaSource(MWProject.java:848)
     at oracle.toplink.workbench.ui.ProjectSourceGenerationCoordinator.exportProjectSource(ProjectSourceGenerationCoordinator.java:162)
     at oracle.toplink.workbench.ui.MainView.exportSelectedProjectsToJavaSource(MainView.java:616)
     at oracle.toplink.workbench.ui.ActionManager$50.actionPerformed(ActionManager.java:1395)
     at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
     at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(Unknown Source)
     at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
     at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
     at javax.swing.AbstractButton.doClick(Unknown Source)
     at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
     at javax.swing.plaf.basic.BasicMenuItemUI$MouseInputHandler.mouseReleased(Unknown Source)
     at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
     at java.awt.Component.processMouseEvent(Unknown Source)
     at java.awt.Component.processEvent(Unknown Source)
     at java.awt.Container.processEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
     at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
     at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Window.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.EventQueue.dispatchEvent(Unknown Source)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.run(Unknown Source)

Are there many aggregate mappings in your project? Or do you know of any aggregate mappings or mappings in aggregate descriptors that have changed since you last exported your java source successfully. It appears that something in an aggregate mapping has become corrupted and I'm just wondering if you can narrow down where the problem might have occured. If this is possible, then try remapping those aggregate mappings and then generating the java source again.
If it is not possible or this does not solve the problem, you will need to send this project and the class files in to support.
Thanks,
Karen Moore

A strange java project transplantation problem

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