Examples of javax.transaction.SystemException

javax.transaction.SystemException
A generic transaction exception.

            // verify our tx is the current tx associated with the thread
            // this is really only an error case and should never happen, but just to be sure double check
            // immedately before committing using the transaction manager
            Transaction currentTransaction = txnManager.getTransaction();
            if (currentTransaction != transaction) {
                throw new SystemException("An unknown transaction is currently associated with the thread: expectedTx=" + transaction + ", currentTx=" + currentTransaction);
            }


            txnManager.commit();
            wasCommitted = true;
        } catch (Throwable t) {

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        if (firstThrowable instanceof Error) {
            throw (Error) firstThrowable;
        } else if (firstThrowable instanceof Exception) {
            throw (Exception) firstThrowable;
        } else if (firstThrowable != null) {
            throw (SystemException) new SystemException().initCause(firstThrowable);
        }
    }

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            // verify our tx is the current tx associated with the thread
            // this is really only an error case and should never happen, but just to be sure double check
            // immedately before committing using the transaction manager
            Transaction currentTransaction = txnManager.getTransaction();
            if (currentTransaction != transaction) {
                throw new SystemException("An unknown transaction is currently associated with the thread: expectedTx=" + transaction + ", currentTx=" + currentTransaction);
            }


            // we need to rollback
            txnManager.rollback();
            return true;

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        } else if (throwable instanceof Error) {
            throw (Error) throwable;
        } else if (throwable instanceof RuntimeException) {
            throw (RuntimeException) throwable;
        } else {
            throw (SystemException) new SystemException(message).initCause(throwable);
        }
    }

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        this.timeout = transactionTimeoutMilliseconds + TransactionTimer.getCurrentTime();
        try {
            txnLog.begin(xid);
        } catch (LogException e) {
            status = Status.STATUS_MARKED_ROLLBACK;
            SystemException ex = new SystemException("Error logging begin; transaction marked for roll back)");
            ex.initCause(e);
            throw ex;
        }
        status = Status.STATUS_ACTIVE;
    }

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                try {
                    rollbackResources(resourceManagers);
                } catch (Exception se) {
                    log.error("Unable to rollback after failure to log prepare", se.getCause());
                }
                throw (SystemException) new SystemException("Error logging prepare; transaction was rolled back)").initCause(e);
            }
        }
        return willCommit;
    }

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                    try {
                        rollbackResources(rms);
                    } catch (Exception se) {
                        log.error("Unable to rollback after failure to log decision", se.getCause());
                    }
                    throw (SystemException) new SystemException("Error logging rollback").initCause(e);
                }
            }
        } finally {
            afterCompletion();
            synchronized (this) {

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            }
        }
    }


    private void rollbackResources(List rms) throws SystemException {
        SystemException cause = null;
        synchronized (this) {
            status = Status.STATUS_ROLLING_BACK;
        }
        for (Iterator i = rms.iterator(); i.hasNext();) {
            TransactionBranch manager = (TransactionBranch) i.next();
            try {
                manager.getCommitter().rollback(manager.getBranchId());
            } catch (XAException e) {
                log.error("Unexpected exception rolling back " + manager.getCommitter() + "; continuing with rollback", e);
                if (cause == null) {
                    cause = new SystemException(e.errorCode);
                }
                continue;
            }
        }
        synchronized (this) {

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            throw cause;
        }
    }


    private void commitResources(List rms) throws SystemException {
        SystemException cause = null;
        synchronized (this) {
            status = Status.STATUS_COMMITTING;
        }
        for (Iterator i = rms.iterator(); i.hasNext();) {
            TransactionBranch manager = (TransactionBranch) i.next();
            try {
                manager.getCommitter().commit(manager.getBranchId(), false);
            } catch (XAException e) {
                log.error("Unexpected exception committing" + manager.getCommitter() + "; continuing to commit other RMs", e);
                if (cause == null) {
                    cause = new SystemException(e.errorCode);
                }
                continue;
            }
        }
        //if all resources were read only, we didn't write a prepare record.
        if (!rms.isEmpty()) {
            try {
                txnLog.commit(xid, logMark);
            } catch (LogException e) {
                log.error("Unexpected exception logging commit completion for xid " + xid, e);
                throw (SystemException)new SystemException("Unexpected error logging commit completion for xid " + xid).initCause(e);
            }
        }
        synchronized (this) {
            status = Status.STATUS_COMMITTED;
        }

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            resourceNames.remove(name);
        }


        public void preparedCommit() throws SystemException {
            if (!resourceNames.isEmpty()) {
                throw new SystemException("This tx does not have all resource managers online, commit not allowed yet");
            }
            super.preparedCommit();
        }

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