While on it also added keyboard shortcut so you can switch on-off the wrapping using Ctrl+Alt+W (M1,M3+W in “Eclipse Language”).

Trust me, it’s a useful plugin : )

Latest version can be installed from the update site: http://ahtik.com/eclipse-update/

Word Wrap project site

Thanks to the shortcut I’m not even waiting anymore to have it fixed in the very deep core of the Eclipse platform as the changes would be massive and simply switching it off before launching a debugger is good enough for now.

How Multitasking Kills Productivity

Quadruple Your Productivity by Setting Deadlines

What is The Eisenhower Matrix

Any feedback is more than welcome!

SQL Error: ORA-01440: column to be modified must be empty to decrease precision or scale

There is a way out of this but it is a bit hacky. Let me know if there is a more elegant solution!
Following example also takes care of the situation when your column is not nullable.

alter table MYTABLE add AMOUNT_TEMP NUMBER;
update MYTABLE set AMOUNT_TEMP = AMOUNT;
alter table MYTABLE modify AMOUNT NULL;
update MYTABLE set AMOUNT=null;
alter table MYTABLE modify AMOUNT number(10,2);
update MYTABLE set AMOUNT=AMOUNT_TEMP;
alter table MYTABLE modify AMOUNT NOT NULL;
alter table MYTABLE drop column AMOUNT_TEMP;

Take care!

Here it comes:

Window->Preferences->Team->Ignored Resources
Faster is to simply type “ignored” into preferences quick search!

Here you can add patterns like “bin”, “build”, “target” etc so these will be ignored.

Please be aware that this kind of ignore patterns are not conceptually correct — ignored resources should be configured at the svn repository meta-info level!

To find out we (me and Ivar) did a little test-drive using recently announced Glassfish Eclipse Bundle that contains Eclipse IDE with bundled Glassfish J2EE server, optionally JDK and a lot of integrated plugins to get you started quickly.

After cutting out all the downloading, startup etc delays we ended up with a surprisingly short 10min demonstration! It was interesting that we barely wrote any code or XML — see for yourself! Tricky part was initial setup to get all the jars and configurations right — must be followed pretty much the same sequence as in the video!

Ok, here it comes, have fun Probably adding a few annotations and audio would help?

Any feedback is more than welcome!

The relation to Eclipse is simply the fact that big part of eclipse.org is a great example of good test coverage built on top of jUnit. Plus, it was literally pulling my hair out in one of the eclipse-related testing-suites.

I stepped into this a few years ago while bug-fighting a test class that had unexpected initialization.

Pretty sure that many of you know the answer but definitely fun outcome!

As everyone can simply run this snippet yourself I won’t delay approving comments, I’ll just accept them whenever I get a free moment. This comment system here has captcha but additionally all comments must be approved manually.

import junit.framework.TestCase;
public class MyTest extends TestCase {
private static int count = 0;

{ count++; }

public MyTest() {count++;}

public void test1() { System.out.print(count); }
public void test2() { System.out.print(count); }
public void test3() { System.out.print(count); }

}

I’m sure some of us don’t always take this behavior into account

After figuring this out, SPECIAL fun is a bit modified case:

import junit.framework.TestCase;
public class MyTest extends TestCase {
private static int count = 0;

{ count=count*2; }

public MyTest() { count++; }

public void test1() { System.out.print(count); }
public void test2() { System.out.print(count); }
public void test3() { System.out.print(count); }
}

For this last snippet I think without running it you won’t figure it out At least I didn’t..

UPDATE: Decent in-depth hi-tech doc about java init http://www.artima.com/designtechniques/initialization7.html

UPDATE2: Correct answers were 666 and 777.

You are allowed to change ONLY the main method! Of course changing sysout line is out of question.

You can leave your answer in comments and I’ll publish/approve them together with the solution.

[java]
public class InstanceDemo {

public static void main(String[] args){
MyClass cl1 = new MyClass();
MyClass cl2 = new MyClass();
System.out.println(cl1.ocl==cl2.ocl && cl1!=cl2);
}

private static class MyClass extends java.util.ArrayList {
private final Object ocl = new Object();
}

}
[/java]

I’ll post the correct answer in 24h

UPDATE: Was not that hard afterall! ~45 correct answers.

Yes, clone() was the answer I was looking for:
[java]MyClass cl2 = (MyClass) cl1.clone();[/java]

Ed Merks surprised with a nice solution:
[java]
//Add this line as the first line of main.
class MyClass extends InstanceDemo.MyClass {
Object ocl = null;
}
[/java]

And a lot of people took the hard-core way:
[java]
Field field = cl1.getClass().getDeclaredField(“ocl”);
field.setAccessible(true);
field.set(cl2,cl1.ocl);
[/java]

I have seen this to be pretty standard practice (and have done this myself too).

Be aware that SimpleDateFormat#format(..) is not thread-safe and thereby for most of the cases you should not use this as a static field in server, Eclipse RPC or any other multi-threaded environment.

SimpleDateFormat is internally using field “calendar” that is set with each #format(…) method call so that pretty much breaks the thread-safety.

I got pretty frustrated after trying to look for disablement under volume control preferences. Nothing there. Also turning off all sound notifications at control panel (including Exclamation sound) didn’t help.

Still nothing, just one aloud beep.

Windows XP Volume Control

Here’s the quickest way I found to disable it:

1. Go to My Computer
2. rightclick for Properties
3. tab Hardware
4. button Device Manager
5. menu View
6. set checkbox Show Hidden Devices
7. navigate to Non-Plug and Play drivers
8. open Beep
9. tab Drivers
10. button Stop
11. combo Disabled
12. button OK
13. Congratulations!

Disabling beep driver forever

If you find a better way, please let me know