问题2：流程走到调用服务总是卡主，麻烦看下是为啥，谢谢！ 以下是报错日志，代码都是按照教程去写的
2020-12-16 10:25:02 ExceptionClass: javax.script.ScriptExceptionLoggerName: com.x.processplatform.service.processing.processor.AbstractProcessorStackTrace: javax.script.ScriptException: TypeError: Cannot read property "length" from undefined in <eval> at line number 55 at jdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:470) at jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:426) at jdk.nashorn.api.scripting.NashornScriptEngine.access$300(NashornScriptEngine.java:73) at jdk.nashorn.api.scripting.NashornScriptEngine$3.eval(NashornScriptEngine.java:514) at com.x.processplatform.service.processing.processor.invoke.InvokeProcessor.jaxrsEvalBody(InvokeProcessor.java:362) at com.x.processplatform.service.processing.processor.invoke.InvokeProcessor.jaxrsInternal(InvokeProcessor.java:164) at com.x.processplatform.service.processing.processor.invoke.InvokeProcessor.jaxrs(InvokeProcessor.java:135) at com.x.processplatform.service.processing.processor.invoke.InvokeProcessor.executing(InvokeProcessor.java:61) at com.x.processplatform.service.processing.processor.invoke.AbstractInvokeProcessor.executeProcessing(AbstractInvokeProcessor.java:27) at com.x.processplatform.service.processing.processor.AbstractProcessor.execute(AbstractProcessor.java:227) at com.x.processplatform.service.processing.Processing.execute(Processing.java:201) at com.x.processplatform.service.processing.Processing.processing(Processing.java:77) at com.x.processplatform.service.processing.Processing.processing(Processing.java:40) at com.x.processplatform.service.processing.Processing.processing(Processing.java:95) at com.x.processplatform.service.processing.Processing.processing(Processing.java:40) at com.x.processplatform.service.processing.jaxrs.work.ActionProcessing$CallableExecute.call(ActionProcessing.java:97) at com.x.processplatform.service.processing.jaxrs.work.ActionProcessing$CallableExecute.call(ActionProcessing.java:86) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: :55 TypeError: Cannot read property "length" from undefined at jdk.nashorn.internal.runtime.ECMAErrors.error(ECMAErrors.java:57) at jdk.nashorn.internal.runtime.ECMAErrors.typeError(ECMAErrors.java:213) at jdk.nashorn.internal.runtime.ECMAErrors.typeError(ECMAErrors.java:185) at jdk.nashorn.internal.runtime.ECMAErrors.typeError(ECMAErrors.java:172) at jdk.nashorn.internal.runtime.Undefined.get(Undefined.java:157) at jdk.nashorn.internal.scripts.Script$Recompilation$16099$54$\^eval\_.L:1#L:2(:55) at jdk.nashorn.internal.scripts.Script$Recompilation$16098$\^eval\_.L:1(:95) at jdk.nashorn.internal.scripts.Script$16097$\^eval\_.:program(:1) at jdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:637) at jdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:494) at jdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:393) at jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:421) ... 19 more
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