Red Hat JBoss Enterprise Application Platform (EAP) Quickstarts

Summary: The quickstarts demonstrate Java EE 6 and a few additional technologies from the JBoss stack. They provide small, specific, working examples that can be used as a reference for your own project.

Introduction

These quickstarts run on Red Hat JBoss Enterprise Application Platform 6.1 or later. We recommend using the JBoss EAP ZIP file. This version uses the correct dependencies and ensures you test and compile against your runtime environment.

Be sure to read this entire document before you attempt to work with the quickstarts. It contains the following information:

• Available Quickstarts: List of the available quickstarts and details about each one.

• Suggested Approach to the Quickstarts: A suggested approach on how to work with the quickstarts.

• System Requirements: List of software required to run the quickstarts.

• Configure Maven: How to configure the Maven repository for use by the quickstarts.

• Run the Quickstarts: General instructions for building, deploying, and running the quickstarts.

• Run the Arquillian Tests: How to run the Arquillian tests provided by some of the quickstarts.

• Optional Components: How to install and configure optional components required by some of the quickstarts.

Available Quickstarts

The list of all currently available quickstarts can be found here: http://site-jdf.rhcloud.com/quickstarts/get-started/. The table lists each quickstart name, the technologies it demonstrates, gives a brief description of the quickstart, and the level of experience required to set it up. For more detailed information about a quickstart, click on the quickstart name.

Some quickstarts are designed to enhance or extend other quickstarts. These are noted in the Prerequisites column. If a quickstart lists prerequisites, those must be installed or deployed before working with the quickstart.

Quickstarts with tutorials in the Get Started Developing Applications are noted with two asterisks ( ** ) following the quickstart name.

Note: Some of these quickstart use the H2 database included with JBoss EAP 6. It is a lightweight, relational example datasource that is used for examples only. It is not robust or scalable and should NOT be used in a production environment!

[TOC-quickstart]

Suggested Approach to the Quickstarts

We suggest you approach the quickstarts as follows:

• Regardless of your level of expertise, we suggest you start with the helloworld quickstart. It is the simplest example and is an easy way to prove your server is configured and started correctly.
• If you are a beginner or new to JBoss, start with the quickstarts labeled Beginner, then try those marked as Intermediate. When you are comfortable with those, move on to the Advanced quickstarts.
• Some quickstarts are based upon other quickstarts but have expanded capabilities and functionality. If a prerequisite quickstart is listed, be sure to deploy and test it before looking at the expanded version.

System Requirements

The applications these projects produce are designed to be run on Red Hat JBoss Enterprise Application Platform 6.1 or later.

To run these quickstarts with the provided build scripts, you need the following:

1. Java 1.6, to run JBoss AS and Maven. You can choose from the following:

   • OpenJDK
   • Oracle Java SE
   • Oracle JRockit

2. Maven 3.0.0 or newer, to build and deploy the examples

   • If you have not yet installed Maven, see the Maven Getting Started Guide for details.

   • If you have installed Maven, you can check the version by typing the following in a command line:

       mvn --version 
     

3. The JBoss EAP distribution ZIP.

   • For information on how to install and run JBoss, refer to the product documentation.

4. You can also use JBoss Developer Studio or Eclipse to run the quickstarts.

Configure Maven

Configure Maven to Build and Deploy the Quickstarts

The quickstarts use artifacts located in the JBoss Developer repository. You must configure Maven to use that repository before you build and deploy the quickstarts.

Note: If you do not wish to configure the Maven settings, you must pass the configuration setting on every Maven command as follows: -s QUICKSTART_HOME/settings.xml

1. Locate the Maven install directory for your operating system. It is usually installed in ${user.home}/.m2/.

        For Linux or Mac:   ~/.m2/
        For Windows: \Documents and Settings\USER_NAME\.m2\  -or-  \Users\USER_NAME\.m2\
   

2. If you have an existing settings.xml file, rename it so you can restore it later.

        For Linux or Mac:  mv ~/.m2/settings.xml ~/.m2/settings-backup.xml
        For Windows: ren "\Documents and Settings\USER_NAME\.m2\settings.xml" settings-backup.xml
                -or- ren "\Users\USER_NAME\.m2\settings.xml" settings-backup.xml
   

3. If you have an existing repository/ directory, rename it so you can restore it later. For example

        For Linux or Mac:  mv ~/.m2/repository/ ~/.m2/repository-backup/
        For Windows: ren "\Documents and Settings\USER_NAME\.m2\repository\" repository-backup
                -or- ren "\Users\USER_NAME\.m2\repository\" repository-backup
   

4. Copy the settings.xml file from the root of the quickstarts directory to your Maven install directory.

        For Linux or Mac:  cp QUICKSTART_HOME/settings.xml  ~/.m2/settings.xml
        For Windows: copy QUICKSTART_HOME/settings.xml \Documents and Settings\USER_NAME\.m2\settings.xml 
                -or- copy QUICKSTART_HOME/settings.xml \Users\USER_NAME\.m2\settings.xml
   

Restore Your Maven Configuration When You Finish Testing the Quickstarts

1. Locate the Maven install directory for your operating system. It is usually installed in ${user.home}/.m2/.

        For Linux or Mac:   ~/.m2/
        For Windows: \Documents and Settings\USER_NAME\.m2\  -or-  \Users\USER_NAME\.m2\
   

2. Restore the settings.xml file/

        For Linux or Mac:  mv ~/.m2/settings-backup.xml ~/.m2/settings.xml
        For Windows: ren "\Documents and Settings\USER_NAME\.m2\settings-backup.xml" settings.xml
                -or- ren "\Users\USER_NAME\.m2\settings-backup.xml" settings.xml
   

3. Restore the repository/ directory

        For Linux or Mac:  mv ~/.m2/repository-backup/ ~/.m2/repository/
        For Windows: ren "\Documents and Settings\USER_NAME\.m2\repository-backup\" repository
                -or- ren "\Users\USER_NAME\.m2\repository\" repository-backup
   

Maven Profiles

Profiles are used by Maven to customize the build environment. The pom.xml in the root of the quickstart directory defines the following profiles:

• The default profile defines the list of modules or quickstarts that require nothing but JBoss Enterprise Application Platform.
• The requires-postgres profile lists the quickstarts that require PostgreSQL to be running when the quickstart is deployed.
• The complex-dependency profile lists quickstarts that require manual configuration that can not be automated.
• The requires-full profile lists quickstarts the require you start the JBoss server using the full profile.
• The requires-xts profile lists quickstarts the require you start the JBoss server using the xts profile.
• The non-maven profile lists quickstarts that do not require Maven, for example, quickstarts that depend on deployment of other quickstarts or those that use other Frameworks such as Forge.

Run the Quickstarts

The root folder of each individual quickstart contains a README file with specific details on how to build and run the example. In most cases you do the following:

• Start the JBoss server
• Build and deploy the quickstarts

Start the JBoss Server

Before you deploy a quickstart, in most cases you need a running JBoss EAP server. A few of the Arquillian tests do not require a running server. This will be noted in the README for that quickstart.

The JBoss server can be started a few different ways.

• Start the Default JBoss Server: This is the default configuration. It defines minimal subsystems and services.
• Start the JBoss Server with the full profile: This profile configures many of the commonly used subsystems and services.
• Start the JBoss Server with a custom configuration: Custom configuration parameters can be specified on the command line when starting the server.

The README for each quickstart will specify which configuration is required to run the example.

Start the Default JBoss Server

To start JBoss EAP:

1. Open a command line and navigate to the root of the JBoss server directory.

2. The following shows the command line to start the JBoss server:

    For Linux:   JBOSS_HOME/bin/standalone.sh
    For Windows: JBOSS_HOME\bin\standalone.bat
   

Start the JBoss Server with the Full Profile

To start JBoss EAP with the Full Profile:

1. Open a command line and navigate to the root of the JBoss server directory.

2. The following shows the command line to start the JBoss server with the full profile:

    For Linux:   JBOSS_HOME/bin/standalone.sh -c standalone-full.xml
    For Windows: JBOSS_HOME\bin\standalone.bat -c standalone-full.xml
   

Start the JBoss Server with Custom Configuration Options

To start JBoss EAP with custom configuration options:

1. Open a command line and navigate to the root of the JBoss server directory.

2. The following shows the command line to start the JBoss server. Replace the CUSTOM_OPTIONS with the custom optional parameters specified in the quickstart.

    For Linux:   JBOSS_HOME/bin/standalone.sh CUSTOM_OPTIONS
    For Windows: JBOSS_HOME\bin\standalone.bat CUSTOM_OPTIONS
   

Build and Deploy the Quickstarts

See the README file in each individual quickstart folder for specific details and information on how to run and access the example.

Build the Quickstart Archive

In some cases, you may want to build the application to test for compile errors or view the contents of the archive.

1. Open a command line and navigate to the root directory of the quickstart you want to build.

2. Use this command if you only want to build the archive, but not deploy it:

        mvn clean install
   

Build and Deploy the Quickstart Archive

1. Make sure you start the JBoss server as described in the README.

2. Open a command line and navigate to the root directory of the quickstart you want to run.

3. Use this command to build and deploy the archive:

        mvn clean install jboss-as:deploy
   

Undeploy an Archive

The command to undeploy the quickstart is simply:

    mvn jboss-as:undeploy

Verify the Quickstarts Build with One Command

---

You can verify the quickstarts build using one command. However, quickstarts that have complex dependencies must be skipped. For example, the jax-rs-client quickstart is a RESTEasy client that depends on the deployment of the helloworld-rs quickstart. As noted above, the root pom.xml file defines a complex-dependencies profile to exclude these quickstarts from the root build process.

To build the quickstarts:

1. Do not start the JBoss server.

2. Open a command line and navigate to the root directory of the quickstarts.

3. Use this command to build the quickstarts that do not have complex dependencies:

        mvn clean install '-Pdefault,!complex-dependencies'
   

Note: If you see a java.lang.OutOfMemoryError: PermGen space error when you run this command, increase the memory by typing the following command for your operating system, then try the above command again.

    For Linux:   export MAVEN_OPTS="-Xmx512m -XX:MaxPermSize=128m"
    For Windows: SET MAVEN_OPTS="-Xmx512m -XX:MaxPermSize=128m"

Undeploy the Deployed Quickstarts with One Command

---

To undeploy the quickstarts from the root of the quickstart folder, you must pass the argument -fae (fail at end) on the command line. This allows the command to continue past quickstarts that fail due to complex dependencies and quickstarts that only have Arquillian tests and do not deploy archives to the server.

You can undeploy quickstarts using the following procedure:

1. Start the JBoss server.

2. Open a command line and navigate to the root directory of the quickstarts.

3. Use this command to undeploy any deployed quickstarts:

        mvn jboss-as:undeploy -fae
   

To undeploy any quickstarts that fail due to complex dependencies, follow the undeploy procedure described in the quickstart's README file.

Run the Arquillian Tests

---

Some of the quickstarts provide Arquillian tests. By default, these tests are configured to be skipped, as Arquillian tests an application on a real server, not just in a mocked environment.

You can either start the server yourself or let Arquillian manage its lifecycle during the testing. The individual quickstart README should tell you what to expect in the console output and the server log when you run the test.

1. Test the quickstart on a remote server

   • Arquillian's remote container adapter expects a JBoss server instance to be already started prior to the test execution. You must Start the JBoss server as described in the quickstart README file.

   • If you need to run the tests on a JBoss server running on a machine other than localhost, you can configure this, along with other options, in the src/test/resources/arquillian.xml file using the following properties:

       <container qualifier="jboss" default="true">
           <configuration>
               <property name="managementAddress">myhost.example.com</property>
               <property name="managementPort">9999</property>
               <property name="username">customAdminUser</property>
               <property name="password">myPassword</property>
           </configuration>
       </container>    
     

   • Run the test goal with the following profile activated:

       mvn clean test -Parq-jbossas-remote     
     

2. Test the quickstart on a managed server

   Arquillian's managed container adapter requires that your server is not running as it will start the container for you. However, you must first let it know where to find the JBoss server directory. The simplest way to do this is to set the JBOSS_HOME environment variable to the full path to your JBoss server directory. Alternatively, you can set the path in the jbossHome property in the Arquillian configuration file.

   • Open the src/test/resources/arquillian.xml file located in the quickstart directory.

   • Find the configuration for the JBoss container. It should look like this:

       <!-- Example configuration for a managed/remote JBoss EAP 6 instance -->
       <container qualifier="jboss" default="true">
           <!-- If you want to use the JBOSS_HOME environment variable, just delete the jbossHome property -->
           <!--<configuration> -->
           <!--<property name="jbossHome">/path/to/jboss/as</property> -->
           <!--</configuration> -->
       </container>           
     

   • Uncomment the configuration element, find the jbossHome property and replace the "/path/to/jboss/as" value with the actual path to your JBoss EAP server.

   • Run the test goal with the following profile activated:

       mvn clean test -Parq-jbossas-managed
     

Use JBoss Developer Studio or Eclipse to Run the Quickstarts

You can also deploy the quickstarts from Eclipse using JBoss tools. For more information on how to set up Maven and the JBoss tools, refer to the JBoss Enterprise Application Platform Development Guide or Get Started Developing Applications.

Optional Components

The following components are needed for only a small subset of the quickstarts. Do not install or configure them unless the quickstart requires it.

• Add a User: Add a Management or Application user for the quickstarts that run in a secured mode.

• Install and Configure the PostgreSQL Database: The PostgreSQL database is used for the distributed transaction quickstarts.

• Install and Configure Byteman: This tool is used to demonstrate crash recovery for distributed transaction quickstarts.

Add a Management or Application User

By default, JBoss EAP is now distributed with security enabled for the management interfaces. A few of the quickstarts use these management interfaces and require that you create a management or application user to access the running application. A script is provided in the JBOSS_HOME/bin directory for that purpose.

The following procedures describe how to add a user with the appropriate permissions to run the quickstarts that depend on them.

Add a Management User

1. Open a command line

2. Type the command for your operating system

    For Linux:   JBOSS_HOME/bin/add-user.sh
    For Windows: JBOSS_HOME\bin\add-user.bat
   

3. You should see the following response:

    What type of user do you wish to add? 
   
    a) Management User (mgmt-users.properties) 
    b) Application User (application-users.properties)
    (a):
   

   At the prompt, press enter to use the default Management User

4. You should see the following response:

    Enter the details of the new user to add.
    Realm (ManagementRealm) : 
   

   If the quickstart README specifies a realm, type it here. Otherwise, press enter to use the default ManagementRealm.

5. When prompted, enter the following

    Username : admin
    Password : (choose a password for the admin user)
   

   Repeat the password

6. Choose yes for the remaining promts.

Add an Application User

1. Open a command line

2. Type the command for your operating system

    For Linux:   JBOSS_HOME/bin/add-user.sh
    For Windows: JBOSS_HOME\bin\add-user.bat
   

3. You should see the following response:

    What type of user do you wish to add? 
   
    a) Management User (mgmt-users.properties) 
    b) Application User (application-users.properties)
    (a):
   

   At the prompt, type: b

4. You should see the following response:

    Enter the details of the new user to add.
    Realm (ApplicationRealm) : 
   

   If the quickstart README specifies a realm, type it here. Otherwise, press enter to use the default ApplicationRealm.

5. When prompted, enter the the Username and Passord. If the quickstart README specifies a Username and Password, enter them here. Otherwise, use the default Username quickstartUser and Password quickstartPwd1!.

    Username : quickstartUser
    Password : quickstartPwd1!
   

6. At the next prompt, you will be asked "What roles do you want this user to belong to?". If the quickstart README specifies a role to use, enter that here. Otherwise, type the role: guest

Install and Configure the PostgreSQL Database

Some of the quickstarts require the PostgreSQL database. This section describes how to install and configure the database for use with these quickstarts.

Download and Install PostgreSQL

The following is a brief overview of how to install PostgreSQL version 9.2. If you install a later version, be sure to modify the version when you issue the commands below. More detailed instructions for installing and starting PostgreSQL can be found on the internet.

Note: Although the database only needs to be installed once, to help partition each quickstart we recommend using a separate database per quickstart. Where you see QUICKSTART_DATABASENAME, you should replace that with the name provided in the particular quickstart's README

Linux Instructions

Use the following steps to install and configure PostgreSQL on Linux. You can download the PDF installation guide here: http://yum.postgresql.org/files/PostgreSQL-RPM-Installation-PGDG.pdf

1. Install PostgreSQL

   • The yum install instructions for PostgreSQL can be found here: http://yum.postgresql.org/howtoyum.php/

   • Download the repository RPM from here: http://yum.postgresql.org/repopackages.php/

   • To install PostgreSQL, in a command line type sudo rpm -ivh RPM_FILE_NAME, where RPM_FILE_NAME is the name of the downloaded repository RPM file, for example:

       sudo rpm -ivh pgdg-fedora92-9.2-5.noarch.rpm
     

   • Edit your distributions package manager definitions to exclude PostgreSQL. See the "important note" on http://yum.postgresql.org/howtoyum.php/ for details on how to exclude install-and-configure-the-postgresql-database packages from the repository of the distribution.

   • Install postgresql92 and postgres92-server by typing the following in a command line:

       sudo yum install postgresql92 postgresql92-server
     

2. Set a password for the postgres user

   • In a command line, login as root and set the postgres password by typing the following commands:

       su
       passwd postgres
     

   • Choose a password

3. Configure the test database

   • In a command line, login as the postgres user, navigate to the postgres directory, and initialize the database by typing:

       su postgres
       cd /usr/pgsql-9.2/bin/
       ./initdb -D /var/lib/pgsql/9.2/data
     

   • Modify the /var/lib/pgsql/9.2/data/pg_hba.conf file to set the authentication scheme to password for tcp connections. Modify the line following the IPv4 local connections: change trust to to password. The line should look like this:

       host    all    all    127.0.0.1/32    password
     

   • Modify the /var/lib/pgsql/9.2/data/postgresql.conf file to allow prepared transactions and reduce the maximum number of connections

       max_prepared_transactions = 10
       max_connections = 10
     

4. Start the database server

   • In the same command line, type the following:

       ./postgres -D /var/lib/pgsql/9.2/data
     

   • Note, this command does not release the command line. In the next step you need to open a new command line.

5. Create a database for the quickstart (as noted above, replace QUICKSTART_DATABASENAME with the name provided in the particular quickstart)

   • Open a new command line and login again as the postgres user, navigate to the postgres directory, and create the database by typing the following:

       su postgres
       cd /usr/pgsql-9.2/bin/
       ./createdb QUICKSTART_DATABASENAME
     

Mac OS X Instructions

The following are the steps to install and start PostgreSQL on Mac OS X. Note that this guide covers only 'One click installer' option.

1. Install PostgreSQL using Mac OS X One click installer: http://www.postgresql.org/download/macosx/

2. Allow prepared transactions:

    sudo su - postgres
   

   • Edit /Library/PostgreSQL/9.2/data/postgresql.conf to allow prepared transactions

       max_prepared_transactions = 10
     

3. Start the database server

    cd /Library/PostgreSQL/9.2/bin
    ./pg_ctl -D ../data restart
   

4. Create a database for the quickstart (as noted above, replace QUICKSTART_DATABASENAME with the name provided in the particular quickstart)

    ./createdb QUICKSTART_DATABASENAME
   

5. Verify that everything works. As the postgres user using the password you specified in Step 1, type the following:

   cd /Library/PostgreSQL/9.2/bin
   ./psql -U postgres    
   

   At the prompt

   start transaction;
   select 1;
   prepare transaction 'foobar';
   commit prepared 'foobar';
   

Windows Instructions

Use the following steps to install and configure PostgreSQL on Windows:

1. Install PostgreSQL using the Windows installer: http://www.postgresql.org/download/windows/

2. Enable password authentication and configure PostgreSQL to allow prepared transactions

   • Modify the C:\Program Files\PostgreSQL\9.2\data\pg_hba.conf file to set the authentication scheme to password for tcp connections. Modify the line following the IPv4 local connections: change trust to to password. The line should look like this:

       host    all    all    127.0.0.1/32    password`
     

   • Modify the C:\Program Files\PostgreSQL\9.2\data\postgresql.conf file to allow prepared transactions and reduce the maximum number of connections:

       max_prepared_transactions = 10
       max_connections = 10
     

3. Start the database server

   • Choose Start -> All Programs -> PostgreSQL 9.2\pgAdmin III
   • Server Groups -> Servers (1) -> PostgreSQL 9.2 (localhost:5432)
   • Right click -> Stop Service
   • Right click -> Start Service

4. Create a database for the quickstart (as noted above, replace QUICKSTART_DATABASENAME with the name provided in the particular quickstart) * Open a command line

      cd C:\Program Files\PostgreSQL\9.2\bin\
      createdb.exe -U postgres QUICKSTART_DATABASENAME
   

Create a Database User

1. Make sure the PostgreSQL bin directory is in your PATH.

   • Open a command line and change to the root directory psql
   • If you see an error that 'psql' is not a recognized command, you need to add the PostgreSQL bin directory to your PATH environment variable.

2. As the postgres user, start the PostgreSQL interactive terminal by typing the following command:

   psql -U postgres
   

3. Create the user sa with password sa and all privileges on the database by typing the following commands (as noted above, replace QUICKSTART_DATABASENAME with the name provided in the particular quickstart):

   create user sa with password 'sa';
   grant all privileges on database "QUICKSTART_DATABASENAME" to sa;
   \q
   

4. Test the connection to the database using the TCP connection as user 'sa'. This validates that the change to pg_hba.conf was made correctly:

   psql -h 127.0.0.1 -U sa QUICKSTART_DATABASENAME
   

Add the PostgreSQL Module to the JBoss server

1. Create the following directory structure: JBOSS_HOME/modules/org/postgresql/main

2. Download the JBDC driver from http://jdbc.postgresql.org/download.html and copy it into the directory you created in the previous step.

3. In the same directory, create a file named module.xml. Copy the following contents into the file:

    <?xml version="1.0" encoding="UTF-8"?>
    <module xmlns="urn:jboss:module:1.0" name="org.postgresql">
        <resources>
            <resource-root path="postgresql-9.2-1002.jdbc4.jar"/>
        </resources>
        <dependencies>
            <module name="javax.api"/>
            <module name="javax.transaction.api"/>
        </dependencies>
    </module>
   

Add the PostgreSQL Driver Configuration to the JBoss server

You can configure the driver by running the configure-postgresql.cli script provided in the root directory of the quickstarts, by using the JBoss CLI interactively, or by manually editing the configuration file.

NOTE - Before you begin:

1. If it is running, stop the JBoss EAP server.
2. Backup the file: JBOSS_HOME/standalone/configuration/standalone-full.xml
3. After you have completed testing the quickstarts, you can replace this file to restore the server to its original configuration.

Configure the Driver By Running the JBoss CLI Script

1. Start the JBoss EAP server by typing the following:

    For Linux:  JBOSS_HOME_SERVER_1/bin/standalone.sh -c standalone-full.xml
    For Windows:  JBOSS_HOME_SERVER_1\bin\standalone.bat -c standalone-full.xml
   

2. Open a new command line, navigate to the root directory of the quickstarts, and run the following command, replacing JBOSS_HOME with the path to your server:

    JBOSS_HOME/bin/jboss-cli.sh --connect --file=configure-postgresql.cli 
   

This script adds the PostgreSQL driver to the datasources subsystem in the server configuration. You should see the following result when you run the script:

    #1 /subsystem=datasources/jdbc-driver=postgresql:add(driver-name=postgresql,driver-module-name=org.postgresql,driver-xa-datasource-class-name=org.postgresql.xa.PGXADataSource)
    The batch executed successfully.
    {"outcome" => "success"}

Configure the Driver Using the JBoss CLI Interactively

1. Start the JBoss EAP server by typing the following:

    For Linux:  JBOSS_HOME_SERVER_1/bin/standalone.sh -c standalone-full.xml
    For Windows:  JBOSS_HOME_SERVER_1\bin\standalone.bat -c standalone-full.xml
   

2. To start the JBoss CLI tool, open a new command line, navigate to the JBOSS_HOME directory, and type the following:

    For Linux: bin/jboss-cli.sh --connect
    For Windows: bin\jboss-cli.bat --connect
   

3. At the prompt, type the following:

    [standalone@localhost:9999 /] /subsystem=datasources/jdbc-driver=postgresql:add(driver-name=postgresql,driver-module-name=org.postgresql,driver-xa-datasource-class-name=org.postgresql.xa.PGXADataSource)
   

4. Tell the server to reload the configuration:

     [standalone@localhost:9999 /] :reload
   

Configure the Driver By Manually Editing the Configuration File

1. If it is running, stop the JBoss EAP server.

2. Backup the file: JBOSS_HOME/standalone/configuration/standalone-full.xml

3. Open the JBOSS_HOME/standalone/configuration/standalone-full.xml file in an editor and locate the subsystem urn:jboss:domain:datasources:1.0.

4. Add the following driver to the <drivers> section that subsystem. You may need to merge with other drivers in that section:

   <driver name="postgresql" module="org.postgresql">
       <xa-datasource-class>org.postgresql.xa.PGXADataSource</xa-datasource-class>
   </driver>
   

Remove the PostgreSQL Configuration

---

When you are done testing the quickstarts, you can remove the PostgreSQL configuration by running the remove-postgresql.cli script provided in the root directory of the quickstarts or by manually restoring the back-up copy the configuration file.

Remove the PostgreSQL Configuration by Running the JBoss CLI Script

1. Start the JBoss EAP server by typing the following:

    For Linux:  JBOSS_HOME_SERVER_1/bin/standalone.sh -c standalone-full.xml
    For Windows:  JBOSS_HOME_SERVER_1\bin\standalone.bat -c standalone-full.xml
   

2. Open a new command line, navigate to the root directory of this quickstart, and run the following command, replacing JBOSS_HOME with the path to your server:

    JBOSS_HOME/bin/jboss-cli.sh --connect --file=remove-postgresql.cli 
   

This script removes PostgreSQL from the datasources subsystem in the server configuration. You should see the following result when you run the script:

    #1 /subsystem=datasources/jdbc-driver=postgresql:remove
    The batch executed successfully.
    {"outcome" => "success"}

Remove the PostgreSQL Configuration Manually

1. If it is running, stop the JBoss EAP server.
2. Replace the JBOSS_HOME/standalone/configuration/standalone-full.xml file with the back-up copy of the file.

Important Quickstart Testing Information

The installation of PostgreSQL is a one time procedure. However, unless you have set up the database to automatically start as a service, you must repeat the instructions "Start the database server" above for your operating system every time you reboot your machine.

Install and Configure Byteman

Byteman is used by a few of the quickstarts to demonstrate distributed transaction processing and crash recovery.

What is It?

Byteman is a tool which simplifies tracing and testing of Java programs. Byteman allows you to insert extra Java code into your application, either as it is loaded during JVM startup or after it has already started running. This code can be used to trace what the application is doing and to monitor and debug deployments to be sure it is operating correctly. You can also use Byteman to inject faults or synchronization code when testing your application. A few of the quickstarts use Byteman to halt an application server in the middle of a distributed transaction to demonstrate crash recovery.

Download and Configure Byteman

1. Download Byteman from http://www.jboss.org/byteman/downloads/

2. Extract the ZIP file to a directory of your choice.

3. By default, the Byteman download provides unrestricted permissions to others which can cause a problem when running Ruby commands for the OpenShift quickstarts. To restrict the permissions to others, open a command line and type the followinge:

    cd byteman-download-2.0.0/
    chmod -R o-rwx byteman-download-2.0.0/
   

Halt the Application Using Byteman

NOTE: The Byteman scripts only work in JTA mode. They do not work in JTS mode. If you have configured the server for a JTS quickstart, you must follow the instructions to Remove the JTS Configuration from the JBoss server before making the following changes. Otherwise Byteman will not halt the server.

When instructed to use Byteman to halt the application, perform the following steps:

1. Find the appropriate configuration file for your operating system in the list below.

    For Linux: JBOSS_HOME/bin/standalone.conf 
    For Windows: JBOSS_HOME\bin\standalone.conf.bat
   

2. Important: Make a backup copy of this file before making any modifications.

3. The quickstart README should specify the text you need to append to the server configuration file.

4. Open the configuration file and append the text specified by the quickstart to the end of the file. Make sure to replace the file paths with the correct location of your quickstarts and the Byteman download.

5. The following is an example of of the configuration changes needed for the jta-crash-rec quickstart:

   For Linux, open the JBOSS_HOME/bin/standalone.conf file and append the following line:

    JAVA_OPTS="-javaagent:/PATH_TO_BYTEMAN_DOWNLOAD/lib/byteman.jar=script:/PATH_TO_QUICKSTARTS/jta-crash-rec/src/main/scripts/xa.btm ${JAVA_OPTS}" 
   

   For Windows, open the JBOSS_HOME\bin\standalone.conf.bat file and append the following line:

    SET "JAVA_OPTS=%JAVA_OPTS% -javaagent:C:PATH_TO_BYTEMAN_DOWNLOAD\lib\byteman.jar=script:C:\PATH_TO_QUICKSTARTS\jta-crash-rec\src\main\scripts\xa.btm %JAVA_OPTS%"
   

Disable the Byteman Script

When you are done testing the quickstart, remember to restore the configuration file with the backup copy you made in step 2 above.