java - Trying to run code in IOKE shell results in error? -

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when try execute code in ioke shell crashes.

 >ioke  iik> "hello world" println exception in thread "main" java.lang.nullpointerexception             @ ioke.lang.iokeio$2.activate(iokeio.java:129)             @ ioke.lang.typecheckingnativemethod.activate(typecheckingnativemethod.java:50)             @ ioke.lang.iokeobject.activate(iokeobject.java:1053)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:1038)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:514)             @ ioke.lang.iokeobject.perform(iokeobject.java:659)             @ ioke.lang.iokeobject.perform(iokeobject.java:592)             @ ioke.lang.iokeobject.perform(iokeobject.java:522)             @ ioke.lang.message.sendto(message.java:999)             @ ioke.lang.message.evaluatecompletewithoutexplicitreceiver(message.java:1145)             @ ioke.lang.message.getevaluatedargument(message.java:979)             @ ioke.lang.message.getevaluatedargument(message.java:983)             @ ioke.lang.flowcontrolbehavior$9.activate(flowcontrolbehavior.java:379)             @ ioke.lang.iokeobject.activate(iokeobject.java:1053)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:1038)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:514)             @ ioke.lang.iokeobject.perform(iokeobject.java:659)             @ ioke.lang.iokeobject.perform(iokeobject.java:592)             @ ioke.lang.iokeobject.perform(iokeobject.java:522)             @ ioke.lang.locals$1.activate(locals.java:63)             @ ioke.lang.iokeobject.activate(iokeobject.java:1053)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:1038)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:514)             @ ioke.lang.iokeobject.perform(iokeobject.java:659)             @ ioke.lang.iokeobject.perform(iokeobject.java:592)             @ ioke.lang.iokeobject.perform(iokeobject.java:522)             @ ioke.lang.message.sendto(message.java:999)             @ ioke.lang.message.evaluatecompletewith(message.java:1093)             @ ioke.lang.lexicalblock.activate(lexicalblock.java:198)             @ ioke.lang.iokeobject.activate(iokeobject.java:1053)             @ ioke.lang.lexicalblock$2.activate(lexicalblock.java:86)             @ ioke.lang.iokeobject.activate(iokeobject.java:1053)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:1038)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:514)             @ ioke.lang.iokeobject.perform(iokeobject.java:659)             @ ioke.lang.iokeobject.perform(iokeobject.java:592)             @ ioke.lang.iokeobject.perform(iokeobject.java:522)             @ ioke.lang.message.sendto(message.java:1011)             @ ioke.lang.filesystem$7.activate(filesystem.java:308)             @ ioke.lang.iokeobject.activate(iokeobject.java:1053)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:1038)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:514)             @ ioke.lang.iokeobject.perform(iokeobject.java:659)             @ ioke.lang.iokeobject.perform(iokeobject.java:592)             @ ioke.lang.iokeobject.perform(iokeobject.java:522)             @ ioke.lang.message.sendto(message.java:999)             @ ioke.lang.message.evaluatecompletewithoutexplicitreceiver(message.java:1145)             @ ioke.lang.conditionsbehavior$4.activate(conditionsbehavior.java:342)             @ ioke.lang.iokeobject.activate(iokeobject.java:1053)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:1038)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:514)             @ ioke.lang.iokeobject.perform(iokeobject.java:659)             @ ioke.lang.iokeobject.perform(iokeobject.java:592)             @ ioke.lang.iokeobject.perform(iokeobject.java:522)             @ ioke.lang.locals$1.activate(locals.java:63)             @ ioke.lang.iokeobject.activate(iokeobject.java:1053)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:1038)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:514)             @ ioke.lang.iokeobject.perform(iokeobject.java:659)             @ ioke.lang.iokeobject.perform(iokeobject.java:592)             @ ioke.lang.iokeobject.perform(iokeobject.java:522)             @ ioke.lang.message.sendto(message.java:999)             @ ioke.lang.message.evaluatecompletewithoutexplicitreceiver(message.java:1145)             @ ioke.lang.message.getevaluatedargument(message.java:979)             @ ioke.lang.message.getevaluatedargument(message.java:983)             @ ioke.lang.flowcontrolbehavior$7.activate(flowcontrolbehavior.java:298)             @ ioke.lang.iokeobject.activate(iokeobject.java:1053)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:1038)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:514)             @ ioke.lang.iokeobject.perform(iokeobject.java:659)             @ ioke.lang.iokeobject.perform(iokeobject.java:592)             @ ioke.lang.iokeobject.perform(iokeobject.java:522)             @ ioke.lang.locals$1.activate(locals.java:63)             @ ioke.lang.iokeobject.activate(iokeobject.java:1053)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:1038)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:514)             @ ioke.lang.iokeobject.perform(iokeobject.java:659)             @ ioke.lang.iokeobject.perform(iokeobject.java:592)             @ ioke.lang.iokeobject.perform(iokeobject.java:522)             @ ioke.lang.message.sendto(message.java:999)             @ ioke.lang.message.evaluatecompletewithoutexplicitreceiver(message.java:1145)             @ ioke.lang.conditionsbehavior$4.activate(conditionsbehavior.java:342)             @ ioke.lang.iokeobject.activate(iokeobject.java:1053)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:1038)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:514)             @ ioke.lang.iokeobject.perform(iokeobject.java:659)             @ ioke.lang.iokeobject.perform(iokeobject.java:592)             @ ioke.lang.iokeobject.perform(iokeobject.java:522)             @ ioke.lang.locals$1.activate(locals.java:63)             @ ioke.lang.iokeobject.activate(iokeobject.java:1053)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:1038)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:514)             @ ioke.lang.iokeobject.perform(iokeobject.java:659)             @ ioke.lang.iokeobject.perform(iokeobject.java:592)             @ ioke.lang.iokeobject.perform(iokeobject.java:522)             @ ioke.lang.message.sendto(message.java:999)             @ ioke.lang.message.evaluatecompletewith(message.java:1093)             @ ioke.lang.defaultmethod.activate(defaultmethod.java:283)             @ ioke.lang.iokeobject.activate(iokeobject.java:1053)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:1038)             @ ioke.lang.iokeobject.getoractivate(iokeobject.java:514)             @ ioke.lang.iokeobject.perform(iokeobject.java:659)             @ ioke.lang.iokeobject.perform(iokeobject.java:592)             @ ioke.lang.iokeobject.perform(iokeobject.java:522)             @ ioke.lang.message.sendto(message.java:999)             @ ioke.lang.message.evaluatecomplete(message.java:1066)             @ ioke.lang.runtime.evaluatestring(runtime.java:525)             @ ioke.lang.main.main(m  ain.java:149)

what causing error? i'm using windows 10, ioke_home , java_home env variables set (otherwise repl wouldn't invoked in first place). appreciated.


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