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)


    private Object activateInstance(Object primaryKey, ThreadContext callContext) throws SystemException, ApplicationException {
        // attempt to active a passivated entity
        BeanEntry entry = activate(primaryKey);
        if (entry == null) {
            throw new InvalidateReferenceException(new NoSuchObjectException("Not Found"));
        }


        if (entry.isTimedOut()) {
            // Since the bean instance hasn't had its ejbActivate() method called yet,
            // it is still considered to be passivated at this point. Instances that timeout
            // while passivated must be evicted WITHOUT having their ejbRemove()
            // method invoked. Section 6.6 of EJB 1.1 specification.
            throw new InvalidateReferenceException(new NoSuchObjectException("Timed Out"));
        }


        // call the activate method
        Operation currentOperation = callContext.getCurrentOperation();
        callContext.setCurrentOperation(Operation.ACTIVATE);

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    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
        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 javax.ejb.NoSuchEJBException("reference is invalid");
            }
        }
        getDeploymentInfo(); // will throw an exception if app has been undeployed.

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

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        entrancyTracker.enter(beanContext, callContext.getPrimaryKey());
        try {
            bean = (EntityBean) cmpEngine.loadBean(callContext, callContext.getPrimaryKey());
            if (bean == null) {
                throw new NoSuchObjectException(beanContext.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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        final TransactionPolicy txPolicy = createTransactionPolicy(beanContext.getTransactionType(callMethod, interfaceType), callContext);


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

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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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    private void isValidReference(final Method method) throws NoSuchObjectException {
        if (isInvalidReference) {
            if (interfaceType.isComponent() && interfaceType.isLocal()) {
                throw new NoSuchObjectLocalException("reference is invalid");
            } else if (interfaceType.isComponent() || Remote.class.isAssignableFrom(method.getDeclaringClass())) {
                throw new NoSuchObjectException("reference is invalid");
            } else {
                throw new NoSuchEJBException("reference is invalid for " + deploymentID);
            }
        }
        if (!(Object.class.equals(method.getDeclaringClass())

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            InvalidTransactionException invalidTransactionException = new InvalidTransactionException(ex.getMessage());
            invalidTransactionException.detail = ex;
            return invalidTransactionException;
        }
        if (ex instanceof OBJECT_NOT_EXIST) {
            NoSuchObjectException noSuchObjectException = new NoSuchObjectException(ex.getMessage());
            noSuchObjectException.detail = ex;
            return noSuchObjectException;
        }
        if (ex instanceof NO_PERMISSION) {
            return new AccessException(ex.getMessage(), ex);

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    }


    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
        if (isInvalidReference.get()) {
            if (remote || java.rmi.Remote.class.isAssignableFrom(method.getDeclaringClass())){
                throw new NoSuchObjectException("reference is invalid");
            } else {
                throw new NoSuchEJBException("reference is invalid");
            }
        }

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