Examples of java.rmi.NoSuchObjectException

java.rmi.NoSuchObjectException
A NoSuchObjectException is thrown if an attempt is made to invoke a method on an object that no longer exists in the remote virtual machine. If a NoSuchObjectException occurs attempting to invoke a method on a remote object, the call may be retransmitted and still preserve RMI's "at most once" call semantics. A NoSuchObjectException is also thrown by the method java.rmi.server.RemoteObject.toStub and by the unexportObject methods of java.rmi.server.UnicastRemoteObject and java.rmi.activation.Activatable and @version 1.13, 11/17/05 @author Ann Wollrath @since JDK1.1 @see java.rmi.server.RemoteObject#toStub(Remote) @see java.rmi.server.UnicastRemoteObject#unexportObject(Remote,boolean) @see java.rmi.activation.Activatable#unexportObject(Remote,boolean)

                throw new SystemException("Unexpected load exception", e);
            }


            // Did we find the instance?
            if (instance == null) {
                throw new InvalidateReferenceException(new NoSuchObjectException("Not Found"));
            }


            // remember instance until it is returned to the cache
            checkedOutInstances.put(primaryKey, instance);
        }

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    private void isValidReference(Method method) throws NoSuchObjectException {
        if (isInvalidReference) {
            if (interfaceType.isComponent() && interfaceType.isLocal()){
                throw new NoSuchObjectLocalException("reference is invalid");
            } else if (interfaceType.isComponent() || java.rmi.Remote.class.isAssignableFrom(method.getDeclaringClass())) {
                throw new NoSuchObjectException("reference is invalid");
            } else {
                throw new NoSuchEJBException("reference is invalid");
            }
        }
        getDeploymentInfo(); // will throw an exception if app has been undeployed.

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        entrancyTracker.enter(deploymentInfo, callContext.getPrimaryKey());
        try {
            bean = (EntityBean) cmpEngine.loadBean(callContext, callContext.getPrimaryKey());
            if (bean == null) {
                throw new NoSuchObjectException(deploymentInfo.getDeploymentID() + " : " + callContext.getPrimaryKey());
            }


            returnValue = runMethod.invoke(bean, args);


            // when there is not transaction, merge the data from the bean back into the cmp engine

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        TransactionPolicy txPolicy = createTransactionPolicy(deploymentInfo.getTransactionType(callMethod), callContext);


        try {
            EntityBean entityBean = (EntityBean) cmpEngine.loadBean(callContext, callContext.getPrimaryKey());
            if (entityBean == null) {
                throw new NoSuchObjectException(callContext.getDeploymentInfo().getDeploymentID() + " " + callContext.getPrimaryKey());
            }
            ejbRemove(entityBean);
            cmpEngine.removeBean(callContext);
        } catch (NoSuchObjectException e) {
            handleApplicationException(txPolicy, e, false);

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                throw new SystemException("Unexpected load exception", e);
            }


            // Did we find the instance?
            if (instance == null) {
                throw new InvalidateReferenceException(new NoSuchObjectException("Not Found"));
            }


            // remember instance until it is returned to the cache
            checkedOutInstances.put(primaryKey, instance);
        }

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                throw new SystemException("Unexpected load exception", e);
            }


            // Did we find the instance?
            if (instance == null) {
                throw new InvalidateReferenceException(new NoSuchObjectException("Not Found"));
            }


            // remember instance until it is returned to the cache
            checkedOutInstances.put(primaryKey, instance);
        }

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                    callContext.setCurrentOperation(Operation.LOAD);
                    bean.ejbLoad();
                }
            } catch (final NoSuchEntityException e) {
                instanceManager.discardInstance(callContext, bean);
                throw new ApplicationException(new NoSuchObjectException("Entity not found: " + callContext.getPrimaryKey())/*.initCause(e)*/);
            } catch (final Exception e) {
                instanceManager.discardInstance(callContext, bean);
                throw e;
            } finally {
                callContext.setCurrentOperation(orginalOperation);

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                    throw new SystemException("Unexpected load exception", e);
                }


                // Did we find the instance?
                if (instance == null) {
                    throw new InvalidateReferenceException(new NoSuchObjectException("Not Found"));
                }


                // remember instance until it is returned to the cache                
                checkedOutInstances.put(primaryKey, instance);
            }

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      // If remote EJB2.x Client
      else if (Remote.class.isAssignableFrom(actualInvokingClass)
            || EJBObject.class.isAssignableFrom(actualInvokingClass)
            || EJBHome.class.isAssignableFrom(actualInvokingClass))
      {
         t = new NoSuchObjectException(original.getMessage());
      }
      // Business interface
      else
      {
         // Take no action, this is here just for readability

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                    throw new SystemException("Unexpected load exception", e);
                }


                // Did we find the instance?
                if (instance == null) {
                    throw new InvalidateReferenceException(new NoSuchObjectException("Not Found"));
                }


                // remember instance until it is returned to the cache                
                checkedOutInstances.put(primaryKey, instance);
            }

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