Logstash crash issue

[mingfeng.zhang]

Exception in thread "[main]>worker1" java.lang.ArrayIndexOutOfBoundsException: -1
at java.util.ArrayList.elementData(ArrayList.java:418)
at java.util.ArrayList.remove(ArrayList.java:495)
at org.logstash.FieldReference.parse(FieldReference.java:37)
at org.logstash.PathCache.cache(PathCache.java:37)
at org.logstash.Accessors.get(Accessors.java:18)
at org.logstash.Event.getUnconvertedField(Event.java:158)
at org.logstash.Event.getField(Event.java:150)
at org.logstash.KeyNode.evaluate(KeyNode.java:26)
at org.logstash.Template.evaluate(Template.java:28)
at org.logstash.StringInterpolation.evaluate(StringInterpolation.java:47)
at org.logstash.Event.sprintf(Event.java:294)
at org.logstash.ext.JrubyEventExtLibrary$RubyEvent.ruby_sprintf(JrubyEventExtLibrary.java:200)
at org.logstash.ext.JrubyEventExtLibrary$RubyEvent$INVOKER$i$1$0$ruby_sprintf.call(JrubyEventExtLibrary$RubyEvent$INVOKER$i$1$0$ruby_sprintf.gen)
at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:168)
at org.jruby.ast.CallOneArgNode.interpret(CallOneArgNode.java:57)
at org.jruby.ast.HashNode.interpret(HashNode.java:109)
at org.jruby.ast.LocalAsgnNode.interpret(LocalAsgnNode.java:123)
at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
at org.jruby.ast.BlockNode.interpret(BlockNode.java:71)
at org.jruby.evaluator.ASTInterpreter.INTERPRET_METHOD(ASTInterpreter.java:74)
at org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:182)
at org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:203)
at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:168)
at org.jruby.ast.FCallOneArgNode.interpret(FCallOneArgNode.java:36)
at org.jruby.ast.LocalAsgnNode.interpret(LocalAsgnNode.java:123)
at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
at org.jruby.ast.BlockNode.interpret(BlockNode.java:71)
at org.jruby.evaluator.ASTInterpreter.INTERPRET_METHOD(ASTInterpreter.java:74)
at org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:182)
at org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:203)
at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:168)
at org.jruby.ast.FCallOneArgNode.interpret(FCallOneArgNode.java:36)
at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
at org.jruby.evaluator.ASTInterpreter.INTERPRET_BLOCK(ASTInterpreter.java:112)
at org.jruby.runtime.Interpreted19Block.evalBlockBody(Interpreted19Block.java:206)
at org.jruby.runtime.Interpreted19Block.yield(Interpreted19Block.java:157)
at org.jruby.runtime.Block.yield(Block.java:142)
at org.jruby.RubyArray.collect(RubyArray.java:2400)
at org.jruby.RubyArray.map19(RubyArray.java:2414)
at org.jruby.RubyArray$INVOKER$i$0$0$map19.call(RubyArray$INVOKER$i$0$0$map19.gen)
at org.jruby.runtime.callsite.CachingCallSite.callBlock(CachingCallSite.java:143)
at org.jruby.runtime.callsite.CachingCallSite.callIter(CachingCallSite.java:154)
at org.jruby.ast.CallNoArgBlockNode.interpret(CallNoArgBlockNode.java:64)
at org.jruby.ast.FCallOneArgNode.interpret(FCallOneArgNode.java:36)
at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
at org.jruby.ast.IfNode.interpret(IfNode.java:118)
at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
at org.jruby.evaluator.ASTInterpreter.INTERPRET_METHOD(ASTInterpreter.java:74)
at org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:182)
at org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:203)
at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:168)
at org.jruby.ast.CallOneArgNode.interpret(CallOneArgNode.java:57)
at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
at org.jruby.evaluator.ASTInterpreter.INTERPRET_METHOD(ASTInterpreter.java:74)
at org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:182)
at org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:203)
at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:168)
at org.jruby.ast.CallOneArgNode.interpret(CallOneArgNode.java:57)
at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
at org.jruby.ast.BlockNode.interpret(BlockNode.java:71)
at org.jruby.evaluator.ASTInterpreter.INTERPRET_METHOD(ASTInterpreter.java:74)
at org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:182)
at org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:203)
at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:168)
at rubyjit.LogStash::Pipeline$$output_batch_75bfa3cb00ef46733d9a9d671234a933b6ebaa311442407170.block_3$RUBY$file(/opt/logstash/logstash-core/lib/logstash/pipeline.rb:4
07)
at rubyjit$LogStash::Pipeline$$output_batch_75bfa3cb00ef46733d9a9d671234a933b6ebaa311442407170$block_3$RUBY$file.call(rubyjit$LogStash::Pipeline$$output_batch_75bfa3cb
00ef46733d9a9d671234a933b6ebaa311442407170$block_3$RUBY$file)
at org.jruby.runtime.CompiledBlock19.yield(CompiledBlock19.java:135)
at org.jruby.runtime.Block.yield(Block.java:142)
at org.jruby.RubyHash$13.visit(RubyHash.java:1355)
at org.jruby.RubyHash.visitLimited(RubyHash.java:648)
at org.jruby.RubyHash.visitAll(RubyHash.java:634)
at org.jruby.RubyHash.iteratorVisitAll(RubyHash.java:1306)
at org.jruby.RubyHash.each_pairCommon(RubyHash.java:1351)
at org.jruby.RubyHash.each19(RubyHash.java:1342)
at org.jruby.RubyHash$INVOKER$i$0$0$each19.call(RubyHash$INVOKER$i$0$0$each19.gen)
at org.jruby.runtime.callsite.CachingCallSite.callBlock(CachingCallSite.java:143)
at org.jruby.runtime.callsite.CachingCallSite.callIter(CachingCallSite.java:154)
at rubyjit.LogStash::Pipeline$$output_batch_75bfa3cb00ef46733d9a9d671234a933b6ebaa311442407170.file(/opt/logstash/logstash-core/lib/logstash/pipeline.rb:406)
at rubyjit.LogStash::Pipeline$$output_batch_75bfa3cb00ef46733d9a9d671234a933b6ebaa311442407170.file(/opt/logstash/logstash-core/lib/logstash/pipeline.rb)
at org.jruby.internal.runtime.methods.JittedMethod.call(JittedMethod.java:181)
at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:168)
at org.jruby.ast.FCallOneArgNode.interpret(FCallOneArgNode.java:36)
at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
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:105)
at org.jruby.ast.BlockNode.interpret(BlockNode.java:71)
at org.jruby.evaluator.ASTInterpreter.INTERPRET_METHOD(ASTInterpreter.java:74)
at org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:225)