User Experience Engineering

Monday, April 28, 2008

Ban the Beachball : Fix Eclipse on Mac OS X

The Eclipse IDE had become unusable. With each Save, the cursor would turn into a beach ball for several seconds. Startup messages pointed to a culprit: Mylyn.

java.lang.IllegalArgumentException: The feature 'application' is not a valid feature
...
Root exception:
org.eclipse.osgi.framework.internal.core.AbstractBundle$BundleStatusException
...
MESSAGE While loading class "org.eclipse.mylyn.tasks.ui.TasksUiPlugin", thread
"Thread[main,6,main]" timed out waiting (5000ms) for thread "Thread[Worker-3,5,main]"
to finish starting bundle "update@plugins/org.eclipse.mylyn.tasks.ui_2.0.0.v20070627-1400.jar [399]".
To avoid deadlock, thread "Thread[main,6,main]" is proceeding but
"org.eclipse.mylyn.tasks.ui.TasksUiPlugin" may not be fully initialized.

After reading numerous posts on the topic, I tried many different fixes. Finally, I read the words of Eugene Kuleshov: "Another option is disable Mylyn's hyperlink detector wich you can do at Window / Preferences / General / Editors / Text Editors / Hyperlinking."

What worked

Open Eclipse Preferences (Apple-,).
Type filter text "hyperlink", or navigate to General : Editors : Text Editors : Hyperlinking.
Deselect checkboxes "Mylyn Tasks" and "Mylyn URLs".
Click Apply, then OK.
Restart Eclipse.

Results

Eclipse has faster startup, scrolling, and search, takes up less memory, saves without beachball delays, and supports my favorite plugins nicely. Turning off Mylyn hyperlinking makes my days more productive.

Other Fixes Tried

Removing or disabling Mylyn did not work. It seems there are circular dependencies.
Removed or disabled plugins, including Aptana and JSEclipse.
Upgraded to 4GB of RAM. Already had 2.6GHz MacBook Pro with 180Gb HD, and Mac OS X Leopard (10.5.2).
Freed up 80GB of hard disk space.
Increased Eclipse memory settings, and found out along the way that Eclipse has a Mac OSX bug that prevents Java VM detection. In the thread "--launcher.XXMaxPermSize: Can't identify Sun VM" you'll find no fewer than 34 posts, and no resolution, as of 2008-04-21. "java.lang.OutOfMemoryError: PermGen space" was the original complaint.
Turned off Eclipse spell-checking. General : Editors : Text Editors : Spelling. This eliminated the yellow squiggly highlights under variable names and reserved words such as "var", and sped up editing. Typically 100 such warnings in a 600-line JavaScript file. With six files open, memory footprint included Real Memory: 347MB, Vmem: 2.08GB. Without spellchecking, 214MB and 1.95GB.
Ran JBoss at the command line, instead of in Eclipse.
Turned Aptana code completion (contextual help) delay up to 9999 milliseconds.

Labels: beach ball, beachball, eclipse, mac osx, mylyn

posted by Monte Hayward # 7:17 PM 3 comments

Comments:

Glad to find this post! I had a similar issue where I'd get a beach ball when twisting open java project source directories in the Package Explorer. It typically only happened when I first did this after a launch, but would often have to wait 30 seconds or more. It would also occur at other strange times.

I'm using Ganymede (3.4) and the checkboxes are named slightly differently. I disabled "Tasks" and "Task URLs" and the delays have gone away (so far, anyway). I've got Java 1.4, 1.5 and 1.6 and am running 10.5.4.

Thanks again,
. John
posted by

John K : July 23, 2008 2:14 PM permalink

John,
I'm glad that it helped!
--Monte
posted by

Monte Hayward : July 30, 2008 8:11 AM permalink

I think this finally solved the abysmal performance of Eclipse on OS X. I had already tried other suggestions too such as disabling spell checking, increase memory allocation, etc.

Cliff
www.jspell.com
posted by

Anonymous : April 27, 2009 5:00 PM permalink

Sunday, March 02, 2008

Use Cruzer on Mac OS X and Keep U3 -- Easily

Synopsis: I can use my SanDisk Cruzer on Mac OS X, with a simple settings change. From Windows XP, I disabled U3 security in the U3 Launchpad menu. No removal tool or hacks were necessary. I can now launch Windows applications from the USB key, and use it as file storage on Mac and Windows.

Many forum and blog posts complain about lack of Mac OS X support on the flash drives made by SanDisk, which come with U3.exe Launchpad. They describe U3 Software removal tools and reformatting the flash drive in order to "use all of it". These steps allowed me to make a simple settings change, and retain the ability to launch programs on Windows XP using "U3 Smart Programs."

Prepare SanDisk USB for Mac OS X

Insert Sandisk Cruzer into Windows XP USB port.
Autoplay causes the U3 prompt to come up.
Enter password.
System tray icon "U3" appears.
Click on U3 System Tray icon
Select "Disable Security"
Re-enter password if prompted.
Security button changes to "enable:.

That's it. To verify that it worked, I performed the following steps.

Verify U3 USB Key Working on Mac OS X

Click U3 System tray icon, and select "Eject".
Remove flash drive from Windows USB port.
(In my case, the SanDisk Cruzer micro 4GB)
Stick flash drive into Mac OS X USB port
In Finder, click on the drive.
(It appeared as "No Name", next to Macintosh HD.)
Select any subfolder.
e.g. Documents
Perform read/writes to the USB key from Mac OS X.
e.g.:Create new folder, edit a text file, save a new file, copy files to and from the flash drive

Labels: flash drive, launchpad, mac osx, SanDisk, u3, usb key, windows xp

posted by Monte Hayward # 7:24 AM 0 comments

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