Recently I kept hitting an issue of Eclipse not recognising my imports (even though they were there). I was always getting the message:

.

Where ClassName was my imported class. I’m using the MyEclipse Workbench 5.5.1 on Eclipse 3.2. Here are a few tips on how you can fix this (some worked for me, some didn’t):

• ‘Clean’ Your Eclipse Project: Go to Project > Clean in Eclipse [This seems to work for me]
• Refresh your project folder (right click on your project > refresh)
• Re-build your project
• Clean your builds (If using Ant or Maven – clean your builds)
• Recreate your project in Eclipse
• ‘Switch’ Workspace – then Switch back (Eg Change to Debug, then switch back to Java)
• ‘Switch’ Workspace – then Switch back (Eg Change to Debug, then switch back to Java)
• Remove and re-add your JRE:
  1. Right Click on your project > properties
  2. Click on the Libraries tab
  3. Click on the JRE
  4. Click remove, then OK
  5. Repeat 1-3 again, but add the JRE again

Hope at least ONE of those tips help!

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If you get this boring message “firefox is already running” when you want to start it, follow these steps to solve the problem.

1. Goto profile folder. (it is under .mozilla/firefox)

2. Delete the files .lock and .parentlock

3. When you restart firefox , if you get a red bar with a message something like “..bookmarks system not available..”,

first backup your “places.sqlite” (it is under profile folder). (Backup is not to loose bookmarks)

Delete the files places.sqlite and places.sqlite-journal.

4. Restart firefox.

You can copy your places.sqlite back to recover your bookmarks.

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To configure the Java Plugin follow these steps:

1. Exit Firefox browser if it is already running.

2. Uninstall any previous installations of Java Plugin. Only one Java Plugin can be used at a time. When you want to use different plugin, or version of a plugin, remove the symbolic links to any other versions and create a fresh symbolic link to the new one.

3. Create a symbolic link to the libnpjp2.so file in the browser plugins directory
* Go to the plugins sub-directory under the Firefox installation directory
cd <Firefox installation directory>/plugins

* Create the symbolic link
ln -s <Java installation directory>/lib/i386/libnpjp2.

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Today, when I wanted to start my eclipse I got following error. The environment is Windows XP, Eclipse for EE Developers (Galileo) with Java 1.6 SDK.

JVM Terminated. Exit Code=-1

Intuitively I removed the content of Eclipse.ini and it seemed to work.  However, I did not want to remove ini configs just to be able to run Eclipse again (especially memory allocation parts).

Reducing the -Xmx512m  to -Xmx256m solved the problem.

Niether I know why Eclipse did not start today (itworked yesterday and there is no notable change in system config  since yesterday) nor I have a reasonable explanation for solution (and problem). Does anyone have an idea?

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function failureHandler(o) {
  alert('Error: ' + o.status + ', ' + o.statusText);
}

function successHandler(o) {
  var result = o.responseText;
  var useThisAnywhere = trim(result);
}

var request = YAHOO.util.Connect.asyncRequest('GET',
                                              'ajaxReturn.jsp?param=' + value + ',param2=' + value2,
                                              { success:successHandler, failure:failureHandler }
                                             );

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File file;
File dir = new File("C:/test/");
String[] filesToRemove = dir.list();

if (filesToRemove.length>0) {
  for (int i=0; i<filesToRemove.length; i++) {
    if (filesToRemove[i].endsWith(".ext")) {
      file = new File(dir, filesToRemove[i]);
      file.delete();
    }
  }
}

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