package javax.ejb does not exist

[L. Wei]

Hi,

I am trying to run the examples of "Action In EJB3". I am using osx snow leopard on my macbook. I installed JBoss AS6.0 and Ant, and tried to compile actionbazaar of chapter1. I got "package javax.ejb does not exist" error. I am using Java 1.6.0_20 from osx 10.6.

I know that I need j2ee.jar but where is it? I didn't even find it in JBoss installation folder. Should I install J2ee sdk? Why couldn't I find this jar in jboss folder? Any one can help?

[Ninad Kulkarni]

If you are geeting such error at compile time then you have to set path location in xml file according to your environment.

[L. Wei]

Thank you Ninad. I tried to modify the build.xml file, but I still couldn't get it compiled. I keep getting the compilation error

[javac] Compiling 2 source files to /Users/lwei/Private/jboss/chapter1/build/chapter1-ejb
    [javac] /Users/lwei/Private/jboss/chapter1/src/ejb/com/ejb3inaction/actionbazaar/buslogic/HelloUser.java:3: package javax.ejb does not exist
    [javac] import javax.ejb.Remote;
    [javac]                 ^

Here is the build.xml file of the chapter1 in EJB3 in Action.

<?xml version="1.0" encoding="iso-8859-1"?>
<project name="chapter1" default="all" basedir=".">
	<import file="../common.xml" />

	<!-- ****************************************************************
         ** Creates deployable units for the          		           **
         ** application.                                               **
         **************************************************************** -->
	<target name="all" depends="package,deploy" description="Creates and deploys all deployable units for the application">
		<echo message="-----> Creates and deploys all deployable units for the application" />
	</target>

	<target name="java-env-check" unless="env.JAVA_HOME">
		<fail message="JAVA_HOME environment variables must be set." />
	</target>

	<!-- ******************************************************
         ** Initialize all properties relevant to the        **
         ** execution of this how-to demonstration.          **
         ****************************************************** -->
	<target name="init" depends="common,java-env-check">
		<echo message="-----> Initializing project properties" />

		<property name="app.name" value="chapter1" />
		<property name="ear.name" value="${app.name}" />
		<property name="ejb.jar.name" value="${ear.name}-ejb" />
		<property name="client.jar.name" value="${ear.name}-client" />

		<property name="src.dir" value="./src" />
		<property name="bld.dir" value="./build" />
		<property name="etc.dir" value="./etc" />

		<property name="src.ejb.dir" value="${src.dir}/ejb" />
		<property name="src.client.dir" value="${src.dir}/client" />

		<property name="bld.ejb.jar.dir" value="${bld.dir}/${ejb.jar.name}" />
		<property name="bld.client.jar.dir" value="${bld.dir}/${client.jar.name}" />
		<property name="bld.ear.dir" value="${bld.dir}/${ear.name}" />

		<property name="bld.compiler" value="classic" />
		<property name="class.files" value="**/*.class" />
	</target>

	<!-- ***********************************************
         ** Removes the build process artifacts       **
         *********************************************** -->
	<target name="clean" depends="init" description="Removes the contents of the build directory">
		<echo message="-----> Removing the contents of the ${bld.dir} directory" />
		<delete dir="${bld.dir}" />
	</target>

	<!-- ****************************************************************
         ** Sets up required directories and configuration for how-to  **
         **************************************************************** -->
	<target name="setup" depends="init">
		<echo message="-----> Creating the required sub-directories" />
		<mkdir dir="${bld.dir}" />
		<mkdir dir="${bld.ear.dir}" />
		<mkdir dir="${bld.ear.dir}/META-INF" />
		<mkdir dir="${bld.ejb.jar.dir}/META-INF" />
		<mkdir dir="${bld.client.jar.dir}/META-INF" />
	</target>

	<!-- ****************************************************************
         ** Package the EAR File                                       **
         ****************************************************************  -->
	<target name="build" depends="package" description="Package the application in an ear file">
		<echo message="Location of the ear file: ${bld.dir}/${ear.name}.ear" />
	</target>

	<target name="package" depends="package-ejb,package-client">
		<echo message="-----> Creating EAR file" />
		<copy todir="${bld.ear.dir}/META-INF">
			<fileset dir="${etc.dir}" includes="application.xml" />
			<fileset dir="${etc.dir}" includes="jboss-app.xml" />
		</copy>
		<jar destfile="${bld.dir}/${ear.name}.ear">
			<fileset dir="${bld.ear.dir}" includes="**" />
		</jar>
	</target>

	<!-- ******************************************************************
         ** Compile the EJB Classes	                                     **
         ****************************************************************** -->
	<target name="compile-ejb-classes" depends="setup">
		<echo message="-----> Compiling EJBs" />
		<javac srcdir="${src.ejb.dir}" destdir="${bld.ejb.jar.dir}" debug="on">
			<classpath>
				<pathelement path="${common.j2ee.class.path}" />
				<pathelement location="${bld.ejb.jar.dir}" />
			</classpath>
		</javac>
	</target>

	<!-- ******************************************************************
         ** Add EJB Descriptors                                          **
         ******************************************************************* -->
	<target name="ejb-descriptor" depends="setup">
		<echo message="-----> Adding deployment descriptors" />
		<copy todir="${bld.ejb.jar.dir}/META-INF">
			<fileset dir="${etc.dir}" includes="ejb-jar.xml, persistence.xml" />
		</copy>
	</target>

	<!-- ****************************************************************
         ** Create EJB jar file									       **
         ** ************************************************************* -->
	<target name="package-ejb" depends="compile-ejb-classes,ejb-descriptor">
		<echo message="-----> Creating EJB jar file" />
		<jar jarfile="${bld.ear.dir}/${ejb.jar.name}.jar">
			<fileset dir="${bld.ejb.jar.dir}" includes="**" />
		</jar>
	</target>

	<!-- ****************************************************************
         ** Create Client jar file									   **
         **************************************************************** -->
	<target name="package-client" depends="compile-client-classes,client-descriptor">
		<echo message="-----> Creating client jar" />
		<jar jarfile="${bld.dir}/${client.jar.name}.jar">
			<manifest>
				<attribute name="Main-Class" value="com.ejb3inaction.actionbazaar.client.HelloUserClient" />
				<attribute name="Class-Path" value="${ear.name}/${ejb.jar.name}.jar" />
			</manifest>
			<fileset dir="${bld.client.jar.dir}" includes="**" />
		</jar>
	</target>

	<target name="compile-client-classes" depends="setup">
		<javac srcdir="${src.client.dir}" destdir="${bld.client.jar.dir}" debug="on">
			<classpath>
				<pathelement path="${common.client.class.path}" />
				<pathelement location="${bld.client.jar.dir}" />
				<pathelement location="${bld.ejb.jar.dir}" />
			</classpath>
		</javac>
	</target>

	<target name="client-descriptor" depends="setup">
		<copy todir="${bld.client.jar.dir}/META-INF">
			<fileset dir="${etc.dir}" includes="application-client.xml" />
		</copy>
		<copy todir="${bld.client.jar.dir}">
			<fileset dir="${etc.dir}" includes="jndi.properties" />
		</copy>
	</target>

	<target name="undeploy" depends="init">
		<echo message="Undeploying ${ear.name} example" level="verbose" />
		<!-- Delete deployed EAR -->
		<delete file="${JBOSS_HOME}/server/default/deploy/${ear.name}.ear" />
	</target>

	<target name="deploy" depends="init">
		<echo message="Deploying ${ear.name} example" level="verbose">
		</echo>
		<copy file="${bld.dir}/${ear.name}.ear" todir="${JBOSS_HOME}/server/default/deploy" />
	</target>

	<target name="run" depends="init">
		<echo message="Executing client class using ${bld.dir}/${client.jar.name}.jar" />
		<java classname="com.ejb3inaction.actionbazaar.client.HelloUserClient" fork="true" maxmemory="128m">
			<classpath>
				<pathelement path="${common.client.class.path}" />
				<pathelement location="${bld.dir}/${client.jar.name}.jar" />
				<pathelement location="${bld.dir}/${ejb.jar.name}.jar" />
			</classpath>
		</java>
	</target>
</project>

and Here is my env setup.

JBOSS_HOME=/Users/lwei/Tools/jboss-5.1.0.GA
JAVA_HOME=/Library/Java/Home
PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/Users/lwei/Tools/apache-ant-1.8.1/bin

What should I change to get this HelloWorld example run? Which jar file should I include to have javax.ejb package? Please advice. I appreciate it.

[Christophe Verré]

Check my question there, and stop duplicating threads.

[L. Wei]

Thank you Christophe. Here is the common.xml. Please advice.

<?xml version="1.0" encoding="iso-8859-1"?>
<project name="anttasks">
	<property environment="env" />
	<property name="JBOSS_HOME" value="${env.JBOSS_HOME}" />
	<property name="JAVA_HOME" value="${env.JAVA_HOME}" />

	<path id="common.j2ee.class.path">
		<!-- Compile classpath for J2EE based applications for JBoss -->
		<pathelement
			location="${JBOSS_HOME}/server/default/lib/jboss-ejb3x.jar" />
		<pathelement
			location="${JBOSS_HOME}/server/default/lib/jboss-j2ee.jar" />
		<pathelement
			location="${JBOSS_HOME}/server/default/lib/ejb3-persistence.jar" />
		<pathelement
			location="${JBOSS_HOME}/server/default/lib/servlet-api.jar" />
		<pathelement
			location="${JBOSS_HOME}/server/default/lib/jboss-jaxws.jar" />
		<pathelement location="${JBOSS_HOME}/client/jbossws-spi.jar" />
	</path>

	<property name="common.j2ee.class.path"
		refid="common.j2ee.class.path" />

	<path id="common.client.class.path">
		<fileset dir="${JBOSS_HOME}/lib">
			<include name="**/*.jar" />
		</fileset>
		<fileset dir="${JBOSS_HOME}/server/default/lib">
			<include name="**/*.jar" />
		</fileset>
		<!-- Compile classpath for JBoss application clients -->
		<pathelement
			location="${JBOSS_HOME}/server/default/lib/jboss-ejb3x.jar" />
		<pathelement
			location="${JBOSS_HOME}/server/default/lib/jboss-j2ee.jar" />
		<pathelement
			location="${JBOSS_HOME}/server/default/lib/ejb3-persistence.jar" />
		<pathelement
			location="${JBOSS_HOME}/client/jbossall-client.jar" />
		<pathelement
			location="${JBOSS_HOME}/client/jboss-aop-jdk50-client.jar" />
		<pathelement
			location="${JBOSS_HOME}/server/default/deploy/jboss-aop-jdk50.deployer/jboss-aspect-library-jdk50.jar" />
		<pathelement location="${JBOSS_HOME}/client/jbossws-client.jar" />
	</path>

	<property name="common.client.class.path"
		refid="common.client.class.path" />

	<!-- Target for displaying build information. -->
	<target name="common">
		<echo message="BuildName: ${ant.project.name}" />
		<echo message="BuildHome: ${basedir}" />
		<echo message="BuildFile: ${ant.file}" />
		<echo message="BuildJVM: ${ant.java.version}" />
	</target>
</project>

Christophe Verré wrote:Check my question there, and stop duplicating threads.

[Christophe Verré]

Do you have the following file : /Users/lwei/Tools/jboss-5.1.0.GA/server/default/lib/jboss-j2ee.jar ?

[L. Wei]

No, no files in the server/default/lib folder. Did I miss anything? I downloaded the jboss-5.1.0.GA-jdk6.zip file only from its download page. should I download the src file?

I did "find . -name jboss-j2ee.jar -print" at the jboss-5.1.0.GA folder, but not find it either.

Christophe Verré wrote:Do you have the following file : /Users/lwei/Tools/jboss-5.1.0.GA/server/default/lib/jboss-j2ee.jar ?

[Christophe Verré]

L. Wei wrote:No, no files in the server/default/lib folder. Did I miss anything? I downloaded the jboss-5.1.0.GA-jdk6.zip file only from its download page. should I download the src file?

I did "find . -name jboss-j2ee.jar -print" at the jboss-5.1.0.GA folder, but not find it either.

From the author of the book (here): "We currently do not support JBoss 5. Our example code is targeted for JBoss 4.2."

I'm moving this thread to the JBoss forum.

[Vikram Saxena]

You have to include the jboss-javaee.jar file. Its present in the same location i.e. <,YourServer>>\lib.

Also, Please ensure that you are using the correct JAR files as the naming conventions have changed.

Hope this helps !