org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.beans.Devices.rules, no session or session was closed

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    Stack Overflow | 3 months ago | user1058913
    org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.beans.Devices.rules, no session or session was closed
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    org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.soft1.pack1.data.entity.InitialAlignment.initialAlignment, could not initialize proxy - no Session

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Root Cause Analysis

  1. org.hibernate.LazyInitializationException

    failed to lazily initialize a collection of role: com.beans.Devices.rules, no session or session was closed

    at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationException()
  2. Hibernate
    PersistentBag.iterator
    1. org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:393)
    2. org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:385)
    3. org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:378)
    4. org.hibernate.collection.internal.AbstractPersistentCollection.read(AbstractPersistentCollection.java:112)
    5. org.hibernate.collection.internal.PersistentBag.iterator(PersistentBag.java:266)
    5 frames
  3. Gson
    Gson.toJson
    1. com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.write(CollectionTypeAdapterFactory.java:95)
    2. com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.write(CollectionTypeAdapterFactory.java:60)
    3. com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:68)
    4. com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:99)
    5. com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:219)
    6. com.google.gson.internal.bind.ObjectTypeAdapter.write(ObjectTypeAdapter.java:107)
    7. com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:68)
    8. com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.write(CollectionTypeAdapterFactory.java:96)
    9. com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.write(CollectionTypeAdapterFactory.java:60)
    10. com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:68)
    11. com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:99)
    12. com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:219)
    13. com.google.gson.Gson.toJson(Gson.java:600)
    14. com.google.gson.Gson.toJson(Gson.java:579)
    14 frames
  4. Spring
    AbstractGenericHttpMessageConverter.write
    1. org.springframework.http.converter.json.GsonHttpMessageConverter.writeInternal(GsonHttpMessageConverter.java:199)
    2. org.springframework.http.converter.AbstractGenericHttpMessageConverter.write(AbstractGenericHttpMessageConverter.java:100)
    2 frames
  5. Spring MVC
    RequestResponseBodyMethodProcessor.handleReturnValue
    1. org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:222)
    2. org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:153)
    3. org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.handleReturnValue(RequestResponseBodyMethodProcessor.java:165)
    3 frames
  6. Spring
    HandlerMethodReturnValueHandlerComposite.handleReturnValue
    1. org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:80)
    1 frame
  7. Spring MVC
    FrameworkServlet.doGet
    1. org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:126)
    2. org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:814)
    3. org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:737)
    4. org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    5. org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
    6. org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
    7. org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
    8. org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
    8 frames
  8. JavaServlet
    HttpServlet.service
    1. javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
    1 frame
  9. Spring MVC
    FrameworkServlet.service
    1. org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
    1 frame
  10. JavaServlet
    HttpServlet.service
    1. javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
    1 frame
  11. Glassfish Core
    ApplicationFilterChain.doFilter
    1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    2 frames
  12. Tomcat WS
    WsFilter.doFilter
    1. org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    1 frame
  13. Glassfish Core
    CoyoteAdapter.service
    1. org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    2. org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    3. org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    4. org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    5. org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    6. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    7. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    8. org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    9. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    10. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:409)
    10 frames
  14. Grizzly HTTP
    JIoEndpoint$SocketProcessor.run
    1. org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1044)
    2. org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
    3. org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
    3 frames
  15. Java RT
    Thread.run
    1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    3. java.lang.Thread.run(Thread.java:745)
    3 frames