Is it possible to remote hotswap a pure java application?

[Ryanivanka]

Hi Experts, 

I was debugging a java applications running on remote server, I attach debugging using Eclipse. Because there is no web container in it to support hotswap, so I guess HotswapAgent is my hope. My question is how can I setup to hotswap my code changes locally to remote server? Or that's impossible?

Thanks a lot,

Ryanivanka

[Jiří Bubník]

Hi,

 

 

Just follow stadnard instructions on your remote server: http://hotswapagent.org/quick-start

 

Connect to the remote application from eclipse and use standard hot replace  feature (https://wiki.eclipse.org/FAQ_What_is_hot_code_replace%3F)

 

DCEVM allows method signature changes, Hotswap Agent handles method/framework caches etc.

 

Jiri

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[Ryanivanka]

Thanks for you reply.

I tried to setup and got stuck on some error. 

First is about "Must use the serial GC in the DCEVM", I should remove some serial GC option in JAVA_OPTS. 

Second, I should compile my binary and ask maven to use DCEVM patched JDK

Third, according to http://ssw.jku.at/dcevm/binaries/, dcevm only support 32bit on linux? is this too old? or it's still in this way? hotswapAgent doesn't mention this.

Thanks,

Ryanivanka

[Ryanivanka]

Thank you guys, I already make it work. Linux 64bit seems to be supported already.