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Build Successfully but not running junit files using Apache Ant

I am new in Apache ant to build the project. In my Project i used MySQL,junit and hibernate library. I am working on bitbucket pipelines so some suggest use to ant. So i am creating the build.xml file and in there the proecess is clean,build,run junit test case. I did many research how to learn these things but i am stuck in some place. I am success in clean the directory and build also but i am stuck to check junit failure test case. I tried to run these test case in eclipse it shows that test case fail but if i run through ant it always say build successfully. I will provide my project structure .
+HiberTest
--HTest
--lib
--mysql
--junit
-- Hibernate..... so many library
--src
-com
-test
**so many junit files**
-com
-utils
**so many files**
--classpath
--.settings
--.project
**and many more files**
--build.xml
Here is my build.xml files
<project basedir="." default="junit" name="Hibernate test">
<property name="debuglevel" value="source,lines,vars" />
<property name="src.dir" location="HTest/src" />
<property name="build.dir" location="HTest/bin" />
<property name="target" value="1.8" />
<property name="source" value="1.8" />
<property name="test.dir" value="HTest/bin/com/test" />
<path id="classpath">
<pathelement location="bin" />
<pathelement location="HTest/lib/junit3.8.1.jar" />
<pathelement location="HTest/lib/antlr-2.7.7.jar" />
<pathelement location="HTest/lib/byte-buddy-1.10.7.jar" />
<pathelement location="HTest/lib/classmate-1.5.1.jar" />
<pathelement location="HTest/lib/dom4j-2.1.1.jar" />
<pathelement location="HTest/lib/FastInfoset-1.2.15.jar" />
<pathelement location="HTest/lib/hibernate-commons-annotations-5.1.0.Final.jar" />
<pathelement location="HTest/lib/hibernate-core-5.4.11.Final.jar" />
<pathelement location="HTest/lib/istack-commons-runtime-3.0.7.jar" />
<pathelement location="HTest/lib/jandex-2.1.1.Final.jar" />
<pathelement location="HTest/lib/javassist-3.24.0-GA.jar" />
<pathelement location="HTest/lib/javax.activation-api-1.2.0.jar" />
<pathelement location="HTest/lib/javax.persistence-api-2.2.jar" />
<pathelement location="HTest/lib/jaxb-api-2.3.1.jar" />
<pathelement location="HTest/lib/jaxb-runtime-2.3.1.jar" />
<pathelement location="HTest/lib/jboss-logging-3.3.2.Final.jar" />
<pathelement location="HTest/lib/jboss-transaction-api_1.2_spec-1.1.1.Final.jar" />
<pathelement location="HTest/lib/mysql-connector-java-5.1.48.jar" />
<pathelement location="HTest/lib/stax-ex-1.8.jar" />
<pathelement location="HTest/lib/txw2-2.3.1.jar" />
</path>
<target name="clean">
<delete dir="${build.dir}" />
</target>
<target name="init" depends="clean">
<mkdir dir="${build.dir}" />
<copy includeemptydirs="false" todir="${build.dir}">
<fileset dir="${src.dir}">
<exclude name="**/*.launch" />
<exclude name="**/*.java" />
</fileset>
</copy>
</target>
<target depends="init" name="build-project">
<echo message="${ant.project.name}: ${ant.file}" />
<javac debug="true" debuglevel="${debuglevel}" destdir="${build.dir}" includeantruntime="false" source="${source}" target="${target}">
<src path="${src.dir}" />
<classpath refid="classpath" />
</javac>
</target>
<target name="junit" depends="build-project">
<junit printsummary="yes" haltonfailure="yes">
<classpath>
<path refid="classpath" />
<pathelement location="HTest/src/com/utils" />
</classpath>
<formatter type="brief" usefile="false" />
<batchtest>
<fileset dir="${test.dir}" includes="*.java" />
</batchtest>
</junit>
</target>
</project>
It always gives me this output:-
clean:
[delete] Deleting directory F:\Repository\Agile\HiberTest\HTest\bin
init:
[mkdir] Created dir: F:\Repository\Agile\HiberTest\HTest\bin
[copy] Copying 1 file to F:\Repository\Agile\HiberTest\HTest\bin
build-project:
[echo] Hibernate test: F:\Repository\Agile\HiberTest\build.xml
[javac] Compiling 3 source files to F:\Repository\Agile\HiberTest\HTest\bin
junit:
BUILD SUCCESSFUL
Total time: 1 second
I want to check that if junit test fail then stop the build process and if passes all without error and then i want to create executable jar files
Thanks in advance

The build starts in "build" and the hierarchical never call junit. Try to change:
<target depends="build-project" name="junit" />

ant build.xml does not exist. Build failed

I am a beginner in Ant and GWT and I was creating a new Ant project in GWT by following the steps mentioned on this GWT page: webAppCreator under the Creating an Ant project section. I was able to create this project successfully but I got the error build.xml does not exist! in the Command Prompt log. I am unable to fix this problem even after following all the steps mentioned here : ant build.xml file doesn't exist.
Here is my Command Prompt log:
C:\Users\TEST>webAppCreator -junit D:\SELENIUM\junit-4.10.jar -out foo com.example.foo.Foo
Generating from templates: [sample, eclipse, readme, _eclipse-test, _sample-test, ant]
Created directory foo
Created directory foo\src
Created directory foo\src\com\example\foo
Created directory foo\src\com\example\foo\client
Created directory foo\src\com\example\foo\server
Created directory foo\src\com\example\foo\shared
Created directory foo\test
Created directory foo\test\com\example\foo
Created directory foo\war
Created directory foo\war\WEB-INF
Created directory foo\test\com\example\foo\client
Created file foo\src\com\example\foo\Foo.gwt.xml
Created file foo\src\com\example\foo\client\GreetingService.java
Created file foo\src\com\example\foo\client\GreetingServiceAsync.java
Created file foo\src\com\example\foo\client\Foo.java
Created file foo\src\com\example\foo\server\GreetingServiceImpl.java
Created file foo\src\com\example\foo\shared\FieldVerifier.java
Created file foo\war\WEB-INF\web.xml
Created file foo\war\Foo.css
Created file foo\war\Foo.html
Created file foo\war\favicon.ico
Created file foo\.classpath
Created file foo\.project
Created file foo\Foo.launch
Created file foo\README.txt
Created file foo\FooSuite-dev.launch
Created file foo\FooSuite-prod.launch
Created file foo\test\com\example\foo\FooJUnit.gwt.xml
Created file foo\test\com\example\foo\FooSuite.java
Created file foo\test\com\example\foo\client\FooTest.java
Created file foo\build.xml
C:\Users\TEST>ant build
Buildfile: build.xml does not exist!
Build failed
C:\Users\TEST>ant devmode
Buildfile: build.xml does not exist!
Build failed
Here is my build.xml file:
<?xml version="1.0" encoding="utf-8" ?>
<project name="Foo" default="build" basedir=".">
<!-- Arguments to gwtc and devmode targets -->
<property name="gwt.args" value="" />
<!-- Configure path to GWT SDK -->
<property name="gwt.sdk" location="D:/GWT/gwt-2.8.1/gwt-2.8.1" />
<path id="project.class.path">
<pathelement location="war/WEB-INF/classes"/>
<pathelement location="${gwt.sdk}/gwt-user.jar"/>
<pathelement location="${gwt.sdk}/gwt-dev.jar"/>
<pathelement location="${gwt.sdk}/validation-api-1.0.0.GA.jar"/>
<pathelement location="${gwt.sdk}/validation-api-1.0.0.GA-sources.jar"/>
<fileset dir="war/WEB-INF/lib" includes="**/*.jar"/>
<!-- Add any additional non-server libs (such as JUnit) here -->
</path>
<target name="libs" description="Copy libs to WEB-INF/lib">
<mkdir dir="war/WEB-INF/lib" />
<copy todir="war/WEB-INF/lib" file="${gwt.sdk}/gwt-servlet.jar" />
<copy todir="war/WEB-INF/lib" file="${gwt.sdk}/gwt-servlet-deps.jar" />
<!-- Add any additional server libs that need to be copied -->
</target>
<target name="javac" depends="libs" description="Compile java source to bytecode">
<mkdir dir="war/WEB-INF/classes"/>
<javac srcdir="src" includes="**" encoding="utf-8"
destdir="war/WEB-INF/classes"
source="1.7" target="1.7" nowarn="true"
debug="true" debuglevel="lines,vars,source">
<classpath refid="project.class.path"/>
</javac>
<copy todir="war/WEB-INF/classes">
<fileset dir="src" excludes="**/*.java"/>
</copy>
</target>
<target name="gwtc" depends="javac" description="GWT compile to JavaScript (production mode)">
<java failonerror="true" fork="true" classname="com.google.gwt.dev.Compiler" maxmemory="512m">
<classpath>
<pathelement location="src"/>
<path refid="project.class.path"/>
</classpath>
<arg line="-war"/>
<arg value="war"/>
<!-- Additional arguments like -style PRETTY or -logLevel DEBUG -->
<arg line="${gwt.args}"/>
<arg value="com.example.foo.Foo"/>
</java>
</target>
<target name="devmode" depends="javac" description="Run development mode (pass -Dgwt.args=-nosuperDevMode to fallback to classic DevMode)">
<java failonerror="true" fork="true" classname="com.google.gwt.dev.DevMode" maxmemory="1g">
<classpath>
<pathelement location="src"/>
<path refid="project.class.path"/>
<pathelement location="${gwt.sdk}/gwt-codeserver.jar"/>
</classpath>
<arg value="-startupUrl"/>
<arg value="Foo.html"/>
<arg line="-war"/>
<arg value="war"/>
<!-- Additional arguments like -style PRETTY, -logLevel DEBUG or -nosuperDevMode -->
<arg line="${gwt.args}"/>
<arg value="com.example.foo.Foo"/>
<arg value="com.example.foo.Foo"/>
</java>
</target>
<target name="javac.tests" depends="javac" description="Compiles test code">
<javac srcdir="test" includes="**" encoding="utf-8"
source="1.7" target="1.7" nowarn="true"
destdir="war/WEB-INF/classes"
debug="true" debuglevel="lines,vars,source">
<classpath location="D:\SELENIUM\junit-4.10.jar"/>
<classpath refid="project.class.path"/>
</javac>
</target>
<target name="test.dev" depends="javac.tests" description="Run development mode tests">
<mkdir dir="reports/htmlunit.dev" />
<junit fork="yes" printsummary="yes" haltonfailure="yes" maxmemory="256m">
<sysproperty key="gwt.args" value="-devMode -logLevel WARN -war www-test" />
<sysproperty key="java.awt.headless" value="true" />
<classpath>
<pathelement location="src" />
<pathelement location="test" />
<path refid="project.class.path" />
<pathelement location="D:/GWT/gwt-2.8.1/gwt-2.8.1/validation-api-1.0.0.GA.jar" />
<pathelement location="D:/GWT/gwt-2.8.1/gwt-2.8.1/validation-api-1.0.0.GA-sources.jar" />
<pathelement location="D:\SELENIUM\junit-4.10.jar" />
</classpath>
<batchtest todir="reports/htmlunit.dev" >
<fileset dir="test" >
<include name="**/*Suite.java" />
</fileset>
</batchtest>
<formatter type="plain" />
<formatter type="xml" />
</junit>
</target>
<target name="test.prod" depends="javac.tests" description="Run production mode tests">
<mkdir dir="reports/htmlunit.prod" />
<junit fork="yes" printsummary="yes" haltonfailure="yes" maxmemory="256m">
<sysproperty key="gwt.args" value="-logLevel WARN -war www-test" />
<sysproperty key="java.awt.headless" value="true" />
<classpath>
<pathelement location="src" />
<pathelement location="test" />
<path refid="project.class.path" />
<pathelement location="D:/GWT/gwt-2.8.1/gwt-2.8.1/validation-api-1.0.0.GA.jar" />
<pathelement location="D:/GWT/gwt-2.8.1/gwt-2.8.1/validation-api-1.0.0.GA-sources.jar" />
<pathelement location="D:\SELENIUM\junit-4.10.jar" />
</classpath>
<batchtest todir="reports/htmlunit.prod" >
<fileset dir="test" >
<include name="**/*Suite.java" />
</fileset>
</batchtest>
<formatter type="plain" />
<formatter type="xml" />
</junit>
</target>
<target name="test" description="Run development and production mode tests">
<antcall target="test.dev" />
<antcall target="test.prod" />
</target>
<target name="build" depends="gwtc" description="Build this project" />
<target name="war" depends="build" description="Create a war file">
<zip destfile="Foo.war" basedir="war"/>
</target>
<target name="clean" description="Cleans this project">
<delete dir="war/WEB-INF/classes" failonerror="false" />
<delete dir="war/foo" failonerror="false" />
</target>
</project>
Can someone please help me to fix this issue?

It seems your build.xml is created in a foo folder.
See this output:
Created file foo\build.xml
Go to the foo directory and then run ant.

C:\Users\TEST>ant build
Buildfile: build.xml does not exist!
Build failed
It means build file is absent in TEST directory. Checking your logs you have one in the :\Users\TEST\foo. So you should navigate into foo than try command via terminal one more time.

if you are on Mac :
brew install ant;
brew install ivy;
ant ivy-bootstrap ;
then go to top of ant project;
run ant

Configuration required for ant xml to build correct jar using java 1.8.0_40 and ant 1.9.0

I am trying to build jar for my project using jdk 1.8.0_40 and ant version 1.9.0, jar is getting build but while converting this jar to .exe, it is not able to find main class as I have correctly mentioned my main class.I am using eclipse Mar Version: Mars.2 Release (4.5.2).
Earlier I was using jdk 1.7.0_79 version and ant 1.8.4 and everything was working fine.
I am facing issue while upgrading from jdk 1.7.0_79 to jdk 1.8.0_40.
Below is my ant xml which are using to build my jar.Let me know if any configuration is required for java 1.8 to build proper jar.
<property name="jar.name" value="SAFAL.jar" />
<property name="source.root" value="src" />
<property name="class.root" value="bin" />
<property name="lib.dir" value="lib" />
<property name="jar.dir" value="C:\D\SAFAL-Exe" />
<property name="Main-Class" value="com.sungard.ktt.main.SAFALEval" />
<property name="conf.pkj" value="com/sungard/ktt/business/configurations" />
<property name="img.pkj" value="com/sungard/ktt/business/images" />
<path id="project.class.path">
<pathelement location="${class.root}" />
<fileset dir="${lib.dir}">
<include name="*.jar" />
</fileset>
</path>
<target name="clean" description="cleans up build structures">
<delete dir="${class.root}" />
<delete file="${jar.dir}/${jar.name}" />
</target>
<target name="prepare" description="sets up build structures">
<mkdir dir="${class.root}" />
</target>
<target name="compile" depends="prepare" description="Compiles all java classes">
<javac srcdir="${source.root}" destdir="${class.root}" debug="on" optimize="off" deprecation="on" source="1.8" target="1.8" includeantruntime = "false">
<classpath refid="project.class.path" />
</javac>
<mkdir dir="${class.root}/${conf.pkj}" />
<mkdir dir="${class.root}/${img.pkj}" />
<copy todir="${class.root}/${conf.pkj}">
<fileset dir="${source.root}/${conf.pkj}" />
</copy>
<copy todir="${class.root}/${img.pkj}">
<fileset dir="${source.root}/${img.pkj}" />
</copy>
</target>
<target name="jar" depends="compile">
<delete file="${jar.dir}/${jar.name}" quiet="true" failonerror="false" />
<jar destfile="${jar.dir}/${jar.name}">
<fileset dir="${class.root}" includes="**/*.*" />
<fileset dir="${source.root}" includes="**/api/*.java,**/api/vo/*.java"/>
<zipgroupfileset dir="${lib.dir}" />
<manifest>
<attribute name="Main-Class" value="${Main-Class}" />
<attribute name="Class-Path" value="." />
</manifest>
</jar>
</target>
<target name="run">
<java fork="true" classname="${Main-Class}">
<classpath>
<path location="./${jar.name}" />
</classpath>
</java>
</target>

In your java task you are using ./${jar.name} as the location of your jar - this is relying on the current directory being set correctly. All the rest of your code uses ${jar.dir}/${jar.name} as the path for the jar, so change the java task to do the same:
<target name="run">
<java fork="true" classname="${Main-Class}">
<classpath>
<path location="${jar.dir}/${jar.name}" />
</classpath>
</java>
</target>

Deployment of a web project to Glassfish via ANT in Java for all platforms

I have a web project that deploys war files, and right now I can deploy to Glassfish in Windows. Here is my build.xml's necessary part.
<target
name="deploywar"
description="Varolan WAR dosyasını yayınlar." >
<echo level="info" >
Proje sunucuda yayinlaniyor...
</echo>
<exec
executable="cmd"
failonerror="true"
output="${out.txt}" >
<arg value="/c" />
<arg value="${glassfish.path}/glassfish/bin/asadmin --passwordfile ${password.file} deploy --contextroot /GlassfishDeployment ${deployyolu}/${war.filename}" />
</exec>
</target>
BUT I want to re-write my code to work on all platforms. I did some searchs about it which ends up with this helpful page. I wanted to try this method. I added necessary Jar file in to my project. Then I did these task definitions ;
<fileset dir="WebContent/WEB-INF/lib">
<include name="sun-appserv-ant.jar"/>
</fileset>
<target name="as-ant-init">
<taskdef name="sun-appserv-deploy"
classname="org.apache.tools.ant.taskdefs.optional.sun.appserv.DeployTask" />
<taskdef name="sun-appserv-undeploy"
classname="org.apache.tools.ant.taskdefs.optional.sun.appserv.UndeployTask" />
<taskdef name="sun-appserv-component"
classname="org.apache.tools.ant.taskdefs.optional.sun.appserv.ComponentTask" />
<taskdef name="sun-appserv-admin"
classname="org.apache.tools.ant.taskdefs.optional.sun.appserv.AdminTask" />
<taskdef name="sun-appserv-jspc"
classname="org.apache.tools.ant.taskdefs.optional.sun.appserv.SunJspc" />
<taskdef name="sun-appserv-update"
classname="org.apache.tools.ant.taskdefs.optional.sun.appserv.UpdateTask" />
<taskdef name="sun-appserv-instance"
classname="org.apache.tools.ant.taskdefs.optional.sun.appserv.InstanceTask" />
<taskdef name="wsgen" classname="com.sun.tools.ws.ant.WsGen" />
<taskdef name="wsimport" classname="com.sun.tools.ws.ant.WsImport" />
<classpath path="${glassfish.path}/lib/sun-appserv-ant.jar" />
</target>
I ended up with this error;
taskdef class org.apache.tools.ant.taskdefs.optional.sun.appserv.DeployTask cannot be found
Could anyone help me about solving this error or another way to deploy w/o platform?
Thanks.

I used this code fragment from this reply ;
<presetdef name="asadmin">
<java jar="${glassfish.home}/modules/admin-cli.jar" fork="true" jvm="${java.home}/bin/java" >
<arg line="--port ${glassfish.admin.port}" />
</java>
</presetdef>
<target name="deploy">
<asadmin failonerror="true">
<arg value="deploy" />
<arg value="--force=true" />
<arg value="${ear.file}" />
</asadmin>
</target>
It solved my problem.
Thanks to;
https://stackoverflow.com/a/7299637/1400515

Can't run leJOS NXJ sample project

I try to install leJOS NXJ on my MAC OS X and run it's sample, but after I do what it wants and export NXJ_Home Path file and etc. and install netbeans plugin and create it sample project (Creating your own project using the Netbeans Plugin). I also follow this structure and replace desire classes.jar from intsall leJOS NXJ installation's lib folder.
I export these 4 lines:
My-macbook-pro:~ AR$ export NXJ_HOME=/Users/AR/Documents/Research-kar/JAVA/lejos_nxj
My-macbook-pro:~ AR$ export DYLD_LIBRARY_PATH=$NXJ_HOME/bin
My-macbook-pro:~ AR$ export JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home
My-macbook-pro:~ AR$ export PATH=$PATH:$JAVA_HOME/bin:$NXJ_HOME/binamirrezas-macbook-pro:~ AR$
This is leJOS NXJ sample code:
package org.lejos.example;
import lejos.nxt.*;
/**
* Example leJOS Project with an ant build file
*
*/
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello World");
Button.waitForPress();
}
}
and this is related build.xml file:
<project name="Example" default="uploadandrun">
<description>
org.lejos.example.HelloWorld build file
</description>
<!-- set properties for this build -->
<property environment = "env"/>
<property file="build.properties"/>
<property name="src" location="src"/>
<property name="build" location="build"/>
<property name="program" value="Example"/>
<property name="main.class" value="org.lejos.example.HelloWorld"/>
<property name="binary" value="${build}/${program}.nxj" />
<!-- deletes generated files -->
<target name="clean" description="clean up all generated files">
<delete dir="build"/>
</target>
<target name="compile" depends="clean"
description="compile the source " >
<!-- Compile the java code from ${src} to ${build} -->
<mkdir dir="${build}"/>
<javac srcdir="${src}" destdir="${build}">
<bootclasspath>
<pathelement location="${nxj.classes.home}/lib/classes.jar"/>
</bootclasspath>
</javac>
</target>
<target name="link" depends="compile"
description="link the binary " >
<!-- Link the binary and create a signature file -->
<java classname="js.tinyvm.TinyVM">
<arg value="--bootclasspath"/>
<arg path="${nxj.classes.jar}" />
<arg value="--classpath"/>
<arg path="${build}" />
<arg value="--writeorder" />
<arg value="LE" />
<arg value="${main.class}"/>
<arg value="-o"/>
<arg value="${binary}"/>
<arg value="-v"/>
<classpath>
<pathelement location="${nxj.jtools.jar}"/>
<pathelement location="${nxj.commons.jar}"/>
<pathelement location="${nxj.bcel.jar}"/>
</classpath>
</java>
</target>
<target name="upload" depends="link"
description="upload the binary" >
<java classname="lejos.pc.tools.NXJUpload" fork="true">
<jvmarg value="-Djava.library.path=${nxj.library.path}"/>
<jvmarg value="-Dnxj.home=${nxj.home}"/>
<arg value="${binary}"/>
<classpath>
<pathelement location="${nxj.jtools.jar}"/>
<pathelement location="${nxj.pctools.jar}"/>
<pathelement location="${nxj.pccomm.jar}"/>
<pathelement location="${nxj.commons.jar}"/>
<pathelement location="${nxj.bcel.jar}"/>
<pathelement location="${nxj.bluecove.jar}"/>
<pathelement location="${nxj.bluecove-gpl.jar}"/>
</classpath>
</java>
</target>
<target name="uploadandrun" depends="link"
description="upload and run the binary" >
<java classname="lejos.pc.tools.NXJUpload" fork="true">
<jvmarg value="-Djava.library.path=${nxj.library.path}"/>
<jvmarg value="-Dnxj.home=${nxj.home}"/>
<arg value="${binary}"/>
<arg value="-r"/>
<classpath>
<pathelement location="${nxj.jtools.jar}"/>
<pathelement location="${nxj.pctools.jar}"/>
<pathelement location="${nxj.pccomm.jar}"/>
<pathelement location="${nxj.commons.jar}"/>
<pathelement location="${nxj.bcel.jar}"/>
<pathelement location="${nxj.bluecove.jar}"/>
<pathelement location="${nxj.bluecove-gpl.jar}"/>
</classpath>
</java>
</target>
<!-- used only for modifying the Netbeans NXJPlugin -->
<target name="Zip for Netbeans" description="Zip the application to the sample project">
<property name="build.classes.dir" location="/build"/>
<property name="plugin" location="../NXJPlugin/src/nxjplugin/"/>
<zip basedir="." destfile="${plugin}/NXJSampleProject.zip">
<exclude name="**/build/"/>
<exclude name="**/bin/"/>
<exclude name="**/dist/"/>
<exclude name="**/nbproject/private/"/>
</zip>
</target>
</project>
and this is ide-file-targets.xml:
<?xml version="1.0" encoding="UTF-8"?>
<project basedir=".." name="org.lejos.example-IDE">
<target name="run-selected-file-in-src">
<fail unless="run.class">Must set property 'run.class'</fail>
<ant antfile="build.xml" target="uploadandrun">
<property name="main.class" value="${run.class}"/>
</ant>
</target>
<target name="compile-selected-files-in-src">
<ant antfile="build.xml" target="compile"/>
</target>
</project>
I get this error:
run-selected-file-in-src:
clean:
Deleting directory /Users/AR/Documents/NetBeansProjects/NXJSample/build
compile:
Created dir: /Users/AR/Documents/NetBeansProjects/NXJSample/build
Compiling 1 source file to /Users/AR/Documents/NetBeansProjects/NXJSample/build
/Users/AR/Documents/NetBeansProjects/NXJSample/src/org/lejos/example/HelloWorld.java:3: package lejos.nxt does not exist
import lejos.nxt.*;
/Users/AR/Documents/NetBeansProjects/NXJSample/src/org/lejos/example/HelloWorld.java:13: cannot find symbol
symbol : variable Button
location: class org.lejos.example.HelloWorld
Button.waitForPress();
^
2 errors
/Users/AR/Documents/NetBeansProjects/NXJSample/nbproject/ide-file-targets.xml:5: The following error occurred while executing this line:
/Users/AR/Documents/NetBeansProjects/NXJSample/build.xml:24: Compile failed; see the compiler error output for details.
BUILD FAILED (total time: 0 seconds)
[1]: http://lejos.sourceforge.net/

a little bit late but may other like me are looking for a solution. I am new on leJOS and Netbeans and Java (starting tonight).
My environment is WindowsXP with Netbeans 6.9.1.
leJOS is installed in C:/Programme/leJOS NXJ
First Project: HelloWorld
I fixed it by setting the nxj.home var in the build.properties file laying in the project root directory (here /HelloWorld/ and build.xml is also there).
The nxj.home has to point to the leJOS installation path. In my case:
nxj.home=C:/Programme/leJOS NXJ
Hope it helps
Joe.