javax.servlet.ServletException: java.lang.ClassCastException: hudson.slaves.SlaveComputer cannot be cast to hudson.slaves.AbstractCloudComputer

Jenkins JIRA | Oliver Gondža | 2 years ago
tip
Your exception is missing from the Samebug knowledge base.
Here are the best solutions we found on the Internet.
Click on the to mark the helpful solution and get rewards for you help.
  1. 0

    Can be reproduced with {{mvn hpi:run}}. Create new slave, hit save. {noformat} javax.servlet.ServletException: java.lang.ClassCastException: hudson.slaves.SlaveComputer cannot be cast to hudson.slaves.AbstractCloudComputer at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:783) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:863) at org.kohsuke.stapler.MetaClass$4.doDispatch(MetaClass.java:210) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:733) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:863) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:636) at org.kohsuke.stapler.Stapler.service(Stapler.java:225) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:491) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1074) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:96) at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:88) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1065) at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1065) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1065) at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:46) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1065) at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1065) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:365) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:185) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:689) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:391) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:146) at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at org.mortbay.jetty.Server.handle(Server.java:285) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:457) at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:765) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:628) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:209) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:357) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:329) at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:475) Caused by: java.lang.ClassCastException: hudson.slaves.SlaveComputer cannot be cast to hudson.slaves.AbstractCloudComputer at com.nirima.jenkins.plugins.docker.strategy.DockerOnceRetentionStrategy.start(DockerOnceRetentionStrategy.java:29) at hudson.model.AbstractCIBase.updateComputer(AbstractCIBase.java:129) at hudson.model.AbstractCIBase.updateComputerList(AbstractCIBase.java:179) at jenkins.model.Jenkins.updateComputerList(Jenkins.java:1220) at jenkins.model.Jenkins.setNodes(Jenkins.java:1717) at jenkins.model.Jenkins.addNode(Jenkins.java:1699) at hudson.model.ComputerSet.doDoCreateItem(ComputerSet.java:294) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:298) at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:161) at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:96) at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:120) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:733) ... 39 more {noformat}

    Jenkins JIRA | 2 years ago | Oliver Gondža
    javax.servlet.ServletException: java.lang.ClassCastException: hudson.slaves.SlaveComputer cannot be cast to hudson.slaves.AbstractCloudComputer
  2. 0

    Can be reproduced with {{mvn hpi:run}}. Create new slave, hit save. {noformat} javax.servlet.ServletException: java.lang.ClassCastException: hudson.slaves.SlaveComputer cannot be cast to hudson.slaves.AbstractCloudComputer at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:783) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:863) at org.kohsuke.stapler.MetaClass$4.doDispatch(MetaClass.java:210) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:733) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:863) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:636) at org.kohsuke.stapler.Stapler.service(Stapler.java:225) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:491) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1074) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:96) at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:88) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1065) at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1065) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1065) at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:46) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1065) at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1065) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:365) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:185) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:689) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:391) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:146) at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at org.mortbay.jetty.Server.handle(Server.java:285) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:457) at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:765) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:628) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:209) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:357) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:329) at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:475) Caused by: java.lang.ClassCastException: hudson.slaves.SlaveComputer cannot be cast to hudson.slaves.AbstractCloudComputer at com.nirima.jenkins.plugins.docker.strategy.DockerOnceRetentionStrategy.start(DockerOnceRetentionStrategy.java:29) at hudson.model.AbstractCIBase.updateComputer(AbstractCIBase.java:129) at hudson.model.AbstractCIBase.updateComputerList(AbstractCIBase.java:179) at jenkins.model.Jenkins.updateComputerList(Jenkins.java:1220) at jenkins.model.Jenkins.setNodes(Jenkins.java:1717) at jenkins.model.Jenkins.addNode(Jenkins.java:1699) at hudson.model.ComputerSet.doDoCreateItem(ComputerSet.java:294) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:298) at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:161) at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:96) at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:120) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:733) ... 39 more {noformat}

    Jenkins JIRA | 2 years ago | Oliver Gondža
    javax.servlet.ServletException: java.lang.ClassCastException: hudson.slaves.SlaveComputer cannot be cast to hudson.slaves.AbstractCloudComputer

    Root Cause Analysis

    1. java.lang.ClassCastException

      hudson.slaves.SlaveComputer cannot be cast to hudson.slaves.AbstractCloudComputer

      at com.nirima.jenkins.plugins.docker.strategy.DockerOnceRetentionStrategy.start()
    2. com.nirima.jenkins
      DockerOnceRetentionStrategy.start
      1. com.nirima.jenkins.plugins.docker.strategy.DockerOnceRetentionStrategy.start(DockerOnceRetentionStrategy.java:29)
      1 frame
    3. Hudson
      AbstractCIBase.updateComputerList
      1. hudson.model.AbstractCIBase.updateComputer(AbstractCIBase.java:129)
      2. hudson.model.AbstractCIBase.updateComputerList(AbstractCIBase.java:179)
      2 frames
    4. jenkins.model
      Jenkins.addNode
      1. jenkins.model.Jenkins.updateComputerList(Jenkins.java:1220)
      2. jenkins.model.Jenkins.setNodes(Jenkins.java:1717)
      3. jenkins.model.Jenkins.addNode(Jenkins.java:1699)
      3 frames
    5. Hudson
      ComputerSet.doDoCreateItem
      1. hudson.model.ComputerSet.doDoCreateItem(ComputerSet.java:294)
      1 frame
    6. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      4. java.lang.reflect.Method.invoke(Method.java:606)
      4 frames
    7. Stapler
      Stapler.service
      1. org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:298)
      2. org.kohsuke.stapler.Function.bindAndInvoke(Function.java:161)
      3. org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:96)
      4. org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:120)
      5. org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
      6. org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:733)
      7. org.kohsuke.stapler.Stapler.invoke(Stapler.java:863)
      8. org.kohsuke.stapler.MetaClass$4.doDispatch(MetaClass.java:210)
      9. org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
      10. org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:733)
      11. org.kohsuke.stapler.Stapler.invoke(Stapler.java:863)
      12. org.kohsuke.stapler.Stapler.invoke(Stapler.java:636)
      13. org.kohsuke.stapler.Stapler.service(Stapler.java:225)
      13 frames
    8. JavaServlet
      HttpServlet.service
      1. javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
      1 frame
    9. Jetty Server
      ServletHandler$CachedChain.doFilter
      1. org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:491)
      2. org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1074)
      2 frames
    10. Hudson
      PluginServletFilter.doFilter
      1. hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:96)
      2. hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:88)
      2 frames
    11. Jetty Server
      ServletHandler$CachedChain.doFilter
      1. org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1065)
      1 frame
    12. Hudson
      CrumbFilter.doFilter
      1. hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48)
      1 frame
    13. Jetty Server
      ServletHandler$CachedChain.doFilter
      1. org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1065)
      1 frame
    14. Hudson
      HudsonFilter.doFilter
      1. hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84)
      2. hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
      3. hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164)
      3 frames
    15. Jetty Server
      ServletHandler$CachedChain.doFilter
      1. org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1065)
      1 frame
    16. Stapler
      CompressionFilter.doFilter
      1. org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:46)
      1 frame
    17. Jetty Server
      ServletHandler$CachedChain.doFilter
      1. org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1065)
      1 frame
    18. Hudson
      CharacterEncodingFilter.doFilter
      1. hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81)
      1 frame
    19. Jetty Server
      SelectChannelEndPoint.run
      1. org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1065)
      2. org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:365)
      3. org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:185)
      4. org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
      5. org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:689)
      6. org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:391)
      7. org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:146)
      8. org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
      9. org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
      10. org.mortbay.jetty.Server.handle(Server.java:285)
      11. org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:457)
      12. org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:765)
      13. org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:628)
      14. org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:209)
      15. org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:357)
      16. org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:329)
      16 frames
    20. Jetty Util
      BoundedThreadPool$PoolThread.run
      1. org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:475)
      1 frame