CODEWITHSUNDEEP
javarubyrjb
user2986978
user2986978

Reputation: 173

Ruby 32 bit with java 64 bit on Windows

I am using java bridge (for Stanford-Core-NLP) with ruby, and its seems that jrb can not work while Ruby is 32 bit (193) and Java is 64 bit, on a Windows machine.

Could it be? is there any solution, better than installing Ruby 64 (not supported by many gems)? I must use Java 64 to support 4giga Java applications.

thanks this is the error msg:

C:/Ruby193/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/jar_loader.rb:45:in `load': can't create Java VM (RuntimeError)
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/jar_loader.rb:45:in `init_rjb'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/jar_loader.rb:38:in `load_jar_rjb'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/jar_loader.rb:27:in `load'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/binding.rb:63:in `load_jar'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/binding.rb:71:in `block in load_default_jars'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/binding.rb:68:in `each'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/binding.rb:68:in `load_default_jars'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/bind-it-0.2.7/lib/bind-it/binding.rb:55:in `bind'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/stanford-core-nlp-0.5.1/lib/Stanford-Core-NLP.rb:125:in `bind'
from C:/Ruby193/lib/ruby/gems/1.9.1/gems/stanford-core-nlp-0.5.1/lib/Stanford-Core-NLP.rb:140:in `load'

Upvotes: 2

Views: 228

Answers (1)

Stephen C
Stephen C

Reputation: 719641

I'm pretty sure that the answer is No.

The reason is that (generally speaking) you cannot mix 32bit and 64bit code in the same executing program. There is no way for a non-privileged (i.e. "user-mode") program to switch the CPU between different addressing modes.

Various other "calls for help" for Ruby + Java + RJB on other forums seem to support this ...

Upvotes: 1

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