[1.9] Random instance marshal data incompatible with CRuby 1.9 --------------------------------------------------------------
Key: JRUBY-5335 URL: http://jira.codehaus.org/browse/JRUBY-5335 Project: JRuby Issue Type: Task Components: Core Classes/Modules Affects Versions: JRuby 1.6RC1 Environment: jruby 1.6.0.RC1 (ruby 1.8.7 patchlevel 330) (2011-01-12 71f8afd) (OpenJDK 64-Bit Server VM 1.6.0_20) [linux-amd64-java] Reporter: Hiroshi Nakamura CRuby's Random (uses Mersenne Twister) serializes it's state, left bytes and seed for restoring PRNG's state. We don't support PRNG state dump/load at present. So Random's marshal format is incompatible. It would affect to dRuby, etc if one want to Marshal PRNG, I think it's a rare case though. {noformat} 0% jruby --1.9 -e 'print Marshal.dump(Random.new)' | ruby -e 'p Marshal.load(STDIN)' -e:1:in `marshal_load': wrong argument type Random (expected Bignum) (TypeError) from -e:1:in `load' from -e:1:in `<main>' 0% jruby -v jruby 1.6.0.RC1 (ruby 1.8.7 patchlevel 330) (2011-01-12 71f8afd) (OpenJDK 64-Bit Server VM 1.6.0_20) [linux-amd64-java] 0% ruby -v ruby 1.9.3dev (2011-01-11 trunk 30513) [x86_64-linux] {noformat} By definition, we cannot let it be compatible without implementing exactly the same Mersenne Twister logic as CRuby. Take care, it could cause security issues. Shall we do this? -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.codehaus.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- To unsubscribe from this list, please visit: http://xircles.codehaus.org/manage_email