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java.nio.channels.IllegalBlockingModeException: 	at java.nio.channels.spi.AbstractSelectableChannel.configureBlocking(AbstractSelectableChannel.java:257)	at org.jruby.util.io.SelectBlob.tidyUp(SelectBlob.java:335)	at org.jruby.util.io.SelectBlob.goForIt(SelectBlob.java:86)	at org.jruby.RubyIO.select_static(RubyIO.java:3351)	at org.jruby.RubyIO.select(RubyIO.java:3347)	at org.jruby.RubyIO$s$0$3$select.call(RubyIO$s$0$3$select.gen:65535)	at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:69)	at org.jruby.ast.CallManyArgsNode.interpret(CallManyArgsNode.java:59)	at org.jruby.ast.LocalAsgnNode.interpret(LocalAsgnNode.java:123)	at org.jruby.ast.IfNode.interpret(IfNode.java:111)	at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:104)	at org.jruby.ast.BlockNode.interpret(BlockNode.java:71)	at org.jruby.ast.IfNode.interpret(IfNode.java:119)	at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:104)	at org.jruby.ast.BlockNode.interpret(BlockNode.java:71)	at org.jruby.ast.IfNode.interpret(IfNode.java:117)	at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:104)	at org.jruby.ast.BlockNode.interpret(BlockNode.java:71)	at org.jruby.ast.WhileNode.interpret(WhileNode.java:131)	at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:104)	at org.jruby.ast.BlockNode.interpret(BlockNode.java:71)	at org.jruby.ast.WhileNode.interpret(WhileNode.java:131)	at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:104)	at org.jruby.ast.RescueNode.executeBody(RescueNode.java:216)	at org.jruby.ast.RescueNode.interpretWithJavaExceptions(RescueNode.java:120)	at org.jruby.ast.RescueNode.interpret(RescueNode.java:110)	at org.jruby.ast.EnsureNode.interpret(EnsureNode.java:96)	at org.jruby.ast.BeginNode.interpret(BeginNode.java:83)	at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:104)	at org.jruby.ast.BlockNode.interpret(BlockNode.java:71)	at org.jruby.evaluator.ASTInterpreter.INTERPRET_METHOD(ASTInterpreter.java:75)	at org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:190)	at org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:199)	at org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:312)	at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:169)	at org.jruby.ast.FCallOneArgNode.interpret(FCallOneArgNode.java:36)	at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:104)	at org.jruby.evaluator.ASTInterpreter.INTERPRET_BLOCK(ASTInterpreter.java:112)	at org.jruby.runtime.Interpreted19Block.evalBlockBody(Interpreted19Block.java:212)	at org.jruby.runtime.Interpreted19Block.yield(Interpreted19Block.java:200)	at org.jruby.runtime.Interpreted19Block.call(Interpreted19Block.java:131)	at org.jruby.runtime.Block.call(Block.java:89)	at org.jruby.RubyProc.call(RubyProc.java:270)	at org.jruby.RubyProc.call19(RubyProc.java:258)	at org.jruby.RubyProc$i$0$0$call19.call(RubyProc$i$0$0$call19.gen:65535)	at org.jruby.internal.runtime.methods.DynamicMethod.call(DynamicMethod.java:211)	at org.jruby.internal.runtime.methods.DynamicMethod.call(DynamicMethod.java:207)	at org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:312)	at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:169)	at org.jruby.ast.CallOneArgNode.interpret(CallOneArgNode.java:57)	at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:104)	at org.jruby.ast.BlockNode.interpret(BlockNode.java:71)	at org.jruby.ast.WhileNode.interpret(WhileNode.java:131)	at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:104)	at org.jruby.ast.BlockNode.interpret(BlockNode.java:71)	at org.jruby.evaluator.ASTInterpreter.INTERPRET_BLOCK(ASTInterpreter.java:112)