How to find the version a Java class was compiled with?
Posted by Vasanth Dharmaraj in Java on November 16, 2009
I wanted to lookup the Java version a class was compiled with. I was getting an error:
java.lang.UnsupportedClassVersionError: (MyClass) bad major version at offset=6
Thanks to StackOverflow I found out the following command I did not know before:
javap -verbose MyClass
The major version tells the Java version used. Here are some example values:
* Java 1.2 uses major version 46
* Java 1.3 uses major version 47
* Java 1.4 uses major version 48
* Java 5 uses major version 49
* Java 6 uses major version 50
I am blogging this for future reference.
Jacksonville Airshow
Posted by Vasanth Dharmaraj in US, iPhone on November 9, 2009
I saw the Jacksonville Airshow. The Blue Angels were amazing. So was the helicopter that flew upside down. Didn’t know helicopters could do that.
BumpTop 3D MultiTouch
Posted by Vasanth Dharmaraj in Gadgets on October 2, 2009
BumpTop 3D MultiTouch gestures are great. Now I need a multitouch laptop…
Leelai Movie: Music by my friend!
Posted by Vasanth Dharmaraj in India, Personal on September 7, 2009
My friend and college mate, Satish Chakravarthy is the music director of the Tamil movie Leelai check out the trailer above and all the songs here. Way to go dude. Hope to listen to more music from you.
E71 to iPhone
Posted by Vasanth Dharmaraj in E71, Gadgets, Smartphone, Touch, iPhone on September 7, 2009
After holding out for so long I finally succumbed to the pressure and converted from Nokia E71 to an iPhone. My wife, Tina, got me an iPhone for my birthday! Thanks Tina. She had also got me my E71 last year.
It is early days. I am still missing a few things from the E71 like timed profiles…
Moved to Jacksonville FL
Posted by Vasanth Dharmaraj in Personal on August 27, 2009
I have not blogged in a while. I moved to Jacksonville, Florida. Joined a new job at Syntel. I have been a bit busy setting up the apartment, settling down at work… I have been out of touch with tech news too. Time to catch up.
It is 81 degrees everywhere
Posted by Vasanth Dharmaraj in Personal on July 21, 2009
Strange coincidence.
Chrome Mouse Gesture Extensions
Posted by Vasanth Dharmaraj in Chrome, Google, Software, Web on July 9, 2009
I have been using Mouse Gestures for browsing for quite some time. Can not browse with out it once you get used to it. Till now I have been using gMote to get gestures working in Chrome. Now there is not one but three native gesture extensions for Chome. Check them out here.
I am using the one by os0x. Works great. Now if there was a Super drag and drop extension…
Looks like everyone is talking about Chrome OS…
Posted by Vasanth Dharmaraj in Google on July 8, 2009

Nokia E71 Firmware Update
Posted by Vasanth Dharmaraj in E71, Smartphone on July 2, 2009
Nokia has released a firmware update for Nokia E71. The new version is 300.21.012 and is available for Nokia E71-2 NAM Edition. Get it here. Here is the change log:
- Mail Improved Mail For Exchange
- Music Internet Radio added
- Other improvements My Nokia Application and easy-dialing added, improved USB flashing and enhanced usability