When using the oracle enhanced adapter I ran into the following issue:

ArgumentError: wrong number of arguments (1 for 0)
activerecord-oracle_enhanced-adapter-1.4.2/lib/active_record/connection_adapters/oracle_enhanced_jdbc_connection.rb:426:in `ruby_to_java_value'
activerecord-oracle_enhanced-adapter-1.4.2/lib/active_record/connection_adapters/oracle_enhanced_jdbc_connection.rb:313:in `bind_param'
activerecord-oracle_enhanced-adapter-1.4.2/lib/active_record/connection_adapters/oracle_enhanced_adapter.rb:718:in `exec_insert'

Take a look at the oracle enhanced adapters code but the exception is thrown from here:

java.math.BigDecimal.new(value.to_s)

value.to_s satisfies a when String test and takes no arguments.
java.math.BigDecimal.new does have 1 argument constructors.

This exception has occurred once in a production environment and has not been reproducible. This function is being passed a string and a symbol (in this particular case the string "114.0" and a symbol :decimal). Most of the time it works exactly as expected and creates a BigDecimal.

The error does not make any sense. Since the exception appears to originate from jruby and not java it seems like this must be a jruby bug although I have no idea what could be causing it. The code being run has not made any modification to String or java.math.BigDecimal

Our specific environment:

• jdk1.7.0_51
• jruby-1.7.10