com.vaadin.terminal.gwt.server.UploadException: Upload failed

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    com.vaadin.terminal.gwt.server.UploadException: Upload failed
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    Stack Overflow | 3 years ago | Juan
    java.lang.IllegalArgumentException: Could not parse knowledge.
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    java.lang.IllegalArgumentException: Could not parse knowledge.

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    Root Cause Analysis

    1. java.lang.IllegalArgumentException

      Could not parse knowledge.

      at org.drools.builder.impl.KnowledgeBuilderImpl.newKnowledgeBase()
    2. org.drools.builder
      KnowledgeBuilderImpl.newKnowledgeBase
      1. org.drools.builder.impl.KnowledgeBuilderImpl.newKnowledgeBase(KnowledgeBuilderImpl.java:79)
      1 frame
    3. Activiti - Engine
      CommandContextInterceptor.execute
      1. org.activiti.engine.impl.rules.RulesDeployer.deploy(RulesDeployer.java:64)
      2. org.activiti.engine.impl.persistence.deploy.DeploymentManager.deploy(DeploymentManager.java:58)
      3. org.activiti.engine.impl.cmd.DeployCmd.execute(DeployCmd.java:106)
      4. org.activiti.engine.impl.cmd.DeployCmd.execute(DeployCmd.java:37)
      5. org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:24)
      6. org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:57)
      6 frames
    4. Activiti - Spring
      SpringTransactionInterceptor$1.doInTransaction
      1. org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)
      1 frame
    5. Spring Tx
      TransactionTemplate.execute
      1. org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)
      1 frame
    6. Activiti - Spring
      SpringTransactionInterceptor.execute
      1. org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)
      1 frame
    7. Activiti - Engine
      DeploymentBuilderImpl.deploy
      1. org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:37)
      2. org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)
      3. org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)
      4. org.activiti.engine.impl.RepositoryServiceImpl.deploy(RepositoryServiceImpl.java:79)
      5. org.activiti.engine.impl.repository.DeploymentBuilderImpl.deploy(DeploymentBuilderImpl.java:156)
      5 frames
    8. Activiti - Explorer
      UploadComponent$1.streamingFinished
      1. org.activiti.explorer.ui.management.deployment.DeploymentUploadReceiver.deployUploadedFile(DeploymentUploadReceiver.java:96)
      2. org.activiti.explorer.ui.management.deployment.DeploymentUploadReceiver.uploadFinished(DeploymentUploadReceiver.java:71)
      3. org.activiti.explorer.ui.custom.UploadComponent.uploadFinished(UploadComponent.java:197)
      4. org.activiti.explorer.ui.custom.UploadComponent$1.streamingFinished(UploadComponent.java:222)
      4 frames
    9. Vaadin
      AbstractApplicationServlet.service
      1. com.vaadin.ui.DragAndDropWrapper$ProxyReceiver.streamingFinished(DragAndDropWrapper.java:332)
      2. com.vaadin.terminal.gwt.server.AbstractCommunicationManager.streamToReceiver(AbstractCommunicationManager.java:600)
      3. com.vaadin.terminal.gwt.server.AbstractCommunicationManager.doHandleXhrFilePost(AbstractCommunicationManager.java:520)
      4. com.vaadin.terminal.gwt.server.CommunicationManager.handleFileUpload(CommunicationManager.java:267)
      5. com.vaadin.terminal.gwt.server.AbstractApplicationServlet.service(AbstractApplicationServlet.java:495)
      5 frames
    10. JavaServlet
      HttpServlet.service
      1. javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
      1 frame
    11. Glassfish Core
      ApplicationFilterChain.doFilter
      1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
      2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
      2 frames
    12. Tomcat WS
      WsFilter.doFilter
      1. org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
      1 frame
    13. Glassfish Core
      ApplicationFilterChain.doFilter
      1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
      2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
      2 frames
    14. Activiti - Explorer
      ExplorerFilter.doFilter
      1. org.activiti.explorer.filter.ExplorerFilter.doFilter(ExplorerFilter.java:53)
      1 frame
    15. Glassfish Core
      CoyoteAdapter.service
      1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
      2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
      3. org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
      4. org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
      5. org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
      6. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
      7. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
      8. org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
      9. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
      10. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:436)
      10 frames
    16. Grizzly HTTP
      AprEndpoint$SocketProcessor.run
      1. org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1078)
      2. org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
      3. org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2517)
      4. org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2506)
      4 frames
    17. Java RT
      ThreadPoolExecutor$Worker.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      2 frames
    18. Tomcat Util
      TaskThread$WrappingRunnable.run
      1. org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
      1 frame
    19. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)
      1 frame