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ant build missing jar from lib

I have a build.xml and I have a path for the classpath that I set to classpathref="compile.classpath" during compile:
<path id="compile.classpath">
<fileset dir="./lib">
<include name="*" />
</fileset>
</path>
The lib folder contains weblogic.jar but when i try to compile the project, i got many errors because of missing the weblogic.jar
If I modify my path to this:
<path id="compile.classpath">
<fileset dir="./lib">
<include name="*" />
</fileset>
<fileset dir="${env.WL_HOME}/wlserver/server/lib">
<include name="weblogic.jar" />
</fileset>
</path>
So I add the weblogic.jar from my local installed weblogic directory, there are no errors, and it's compiled.
I copied the weblogic.jar to my project lib folder from the local installed weblogic folder, so it must be the same weblogic.jar
What should I try? Thank you!

I would do something like this in your build.xml (probably just before you do the compilation will work).
<property name="echo.classpath" refid="compile.classpath"/>
<echo message="compileClasspath - ${echo.classpath}"/>
What you probably need to do is to be quite explicit about where your lib directory is, relative paths are tricky if you have multiple build.xml files, and nested directories and stuff.
What I have done before is to make sure that you explicitly define a property in the right place for your lib directory, and just use that rather than ./
<project basedir=".">
<target name="init">
<property name="local.lib.dir" value="${basedir}/lib">
</target>
<target name="compile" depends="init">
<path id="compile.classpath">
<fileset dir="${local.lib.dir}">
<include name="*" />
</fileset>
</path>
....
</target>
</project>

How can I tell my netbeans build.xml where to find my servlets-api.jar?

I am trying to resurrect on old project and get it compiling in netbeans again. Previously - as in 7 years ago - it worked fine but now on a new rig I have to reconfigure everything. The part of the old project I am trying to recompile is just a small java utilities project - not even a full application by itself. The project needs the servlets-api.jar file to compile. The IDE editor works fine - it seems to find it as I get no red lines under the javax.* import line. Only when I try to compile do I get the errors like so:
error: package javax.servlet does not exist
import javax.servlet.ServletException;
My old build script is :
<?xml version="1.0"?>
<project name="javautils" default="package" basedir=".">
<property file="build.properties" />
<path id="classpath">
<pathelement path="classes"/>
<pathelement location="${jdbc.jar}"/>
<pathelement location="${lib.dir}"/>
<pathelement location="${servletjars.home}"/>
</path>
<presetdef name="javac">
<javac includeantruntime="false" />
</presetdef>
<target name="clean">
<delete dir="classes" />
</target>
<target name="prepare">
<mkdir dir="classes" />
</target>
<target name="compile" depends="prepare" description="compile classes">
<javac srcdir="${source.dir}" destdir="${build.dir}">
<classpath refid="classpath" />
</javac>
</target>
<target name="package" depends="compile" description="Packages the web archive file">
<echo message="Packaging ${app.name}'s web archive file ..."/>
<!--
<delete file="${basedir}/${app.name}.war"/>
<jar jarfile="${basedir}/${app.name}.war">
<fileset dir="${basedir}/war" includes="**"/>
</jar>
-->
<jar jarfile="${basedir}/${app.name}.jar">
<fileset dir="${basedir}/classes" includes="**"/>
</jar>
<copy todir="${specialjars.home}">
<fileset dir="${basedir}">
<include name="**/*.jar"/>
</fileset>
</copy>
<copy todir="${standardjars.home}">
<fileset dir="${basedir}">
<include name="**/*.jar"/>
</fileset>
</copy>
</target>
</project>
and my build.properties file is like so:
source.dir=src
build.dir=classes
app.name=JavaUtils
standardjars.home=f:/glassfishv3/glassfish/lib
servletjars.home=f:/glassfishv3/glassfish/modules/javax.servlet.jar
specialjars.home=f:/javaprojects/lib
I know all the servletjars.home path has to be upgraded to point to the tomcat file at C:\Program Files\Apache Software Foundation\Tomcat 8.5\lib\servlets-api.jar but when I do so the compile fails all the same.
I have read a ton of other posts from other users asking the same thing but so far no answers seem address my situation. It has been so long since I did this kind of java programming I have to relearn how to work with some of this stuff.
I am now using windows 10, netbeans 8.2, java 1.8, ant 1.10.1, tomcat 8.5 and MySQL (previously I was using Oracle XE till it crashes and I couldn't revive the DB files).
Please help!

build.xml javac is complaining about missing classes from javax.servlet.http during compliation

I've written a build.xml (Updated 8:49 PM) for a netbeans project. And I've found that the tomcat libraries such as serlvet-api.jar are in the directory C:\apache-tomcat-7.0.35\lib. But I'm not sure how I'm meant to connect the target="class_compile" using the fieldset dir to the tomcat directory (without changing the build.xml each time I wish to compile from another computer).
I've read the question error while including external JARs in ant script, with the solution being a missing classpathref attribute within the javac element (although my classpathref attribute seems to be correct).
<path id="build.classpath">
<fileset dir="${lib.dir}">
<include name="**/*.jar"/>
</fileset>
</path>
<target name="class_compile" depends="prepare" description="Compile the whole project">
<javac destdir="${build.classes}"
debug="${debug}"
deprecation="on"
optimize="off"
srcdir="${src.dir}"
classpathref="build.classpath"
includes="*/**"
/>
<copy todir="${build.classes}">
<fileset dir="${src.dir}" includes="**/*.properties"/>
</copy>
</target>
<target name="prepare">
<mkdir dir="${build.dir}"/>
<mkdir dir="${build.classes}"/>
<path id="run.classpath" >
<pathelement location="${build.classes}" />
</path>
<mkdir dir="${build.lib}"/>
<mkdir dir="${qa.dir}"/>
</target>
Currently, once the class_compile target is executed multiple errors regarding missing class files are reported..
emma:
Created dir: C:\capstonegroup3\TTTserver\build\emma-instr
Created dir: C:\capstonegroup3\TTTserver\build\emma-reports
prepare:
Created dir: C:\capstonegroup3\TTTserver\build\classes
Created dir: C:\capstonegroup3\TTTserver\build\lib
Created dir: C:\capstonegroup3\TTTserver\build\qa-reports
class_compile:
C:\capstonegroup3\TTTserver\build.xml:152: warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds
Compiling 21 source files to C:\capstonegroup3\TTTserver\build\classes
C:\capstonegroup3\TTTserver\src\java\AuthServer\AuthenticationInterface.java:8: error: package javax.servlet.http does not exist
import javax.servlet.http.HttpServletRequest;
Is there any way to set a property to the tomcat apache/lib directory, from persay a .property file? I saw in my build_impl.xml (generated by netbeans, that has a property file included during the -init-private target).
<target depends="-pre-init" name="-init-private">
<property file="nbproject/private/private.properties"/>
</target>
But I'm unsure how to gain access to those properties for my build.xml. But basically I'm after a solution that generates a relative path to the apache-tomcat\lib directory, and successfully compiles the class files without missing packages.

You should declare the servlet-api.jar file to build.classpath as below
<path id="build.classpath">
<fileset dir="C:/apache-tomcat-7.0.35/lib">
<include name="servlet-api.jar" />
</fileset>
<fileset dir="${lib.dir}">
<include name="**/*.jar"/>
</fileset>
</path>

What I like to do is keep a local.properties file that describes my local environment in the parent folder of the project folder (e.g. under NetBeansProjects), e.g.:
NetBeansProjects
+- local.properties
+- MyProject
+- build.xml
+- <other stuff>
The build.xml is like:
tomcat.home=/C:/java/tomcat
gwt.dir=/C:/java/google/gwt-2.5.1
This file is not kept under version control and allows each developer to configure his/her own environment. It is read by Ant using something like:
<property file="../local.properties" />
And used e.g. as (this is only an example, adjust for proper usage):
<path id="project.classpath">
<pathelement path="war/WEB-INF/classes" />
<fileset dir="war/WEB-INF/lib">
<include name="*.jar" />
</fileset>
<fileset dir="${tomcat.home}/lib"><!-- tomcat.home defined in local.properties -->
<include name="**/*.jar" />
</fileset>
</path>

java.lang.NoClassDefFoundError + ant - running a jar

Tagging- Selenium as well just in case someone faced similar issue while creating selenium tests using Ant.
I have seen lot of questions/answers on this topic, tried all the options suggested on various forums but still my issue is not getting resolved. Basically i compile code(includes the test scripts), create JAR and run the same JAR. For some reason it does not seem to identify the libraries during run time. Same code(With tests) works fine when main() method is run from Eclipse. Here is the build.xml,
<project default="run">
<target name="clean">
<delete dir="build" />
</target>
<target name="init-classpath">
<path id="lib.classpath">
<fileset dir="./lib/">
<include name="**.jar" />
</fileset>
</path>
<pathconvert property="mf.classpath" pathsep=" ">
<path refid="lib.classpath" />
<flattenmapper />
</pathconvert>
</target>
<target name="jar" depends="clean, init-classpath">
<javac classpathref="lib.classpath" destdir="./compiled" failonerror="true" srcdir="./src" />
<mkdir dir="build/jar" />
<jar destfile="build/jar/BANC.jar" basedir="compiled">
<manifest>
<attribute name="Main-Class" value="com.portico.driver.TestDriver" />
<attribute name="Class-Path" value="${mf.classpath}" />
</manifest>
</jar>
</target>
<target name="run" depends="jar">
<java jar="build/jar/BANC.jar" fork="true">
</java>
</target>
</project>
Error:-Exception in thread "main" java.lang.NoClassDefFoundError: jxl/Workbook
Manifest content
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.8.3
Created-By: 1.6.0_41-b02 (Sun Microsystems Inc.)
Main-Class: com.portico.driver.TestDriver
Class-Path: activation.jar commons-lang-2.4.jar jna-3.4.0.jar jxl.jar
logging-selenium-1.2.jar mail.jar ojdbc14.jar poi-3.0.2-FINAL.jar rep
ortng-1.1.1.jar saxon-8.7.jar selenium-grid-demo-1.0.7.jar selenium-g
rid-demo-standalone-1.0.7.jar selenium-grid-hub-1.0.7.jar selenium-gr
id-hub-standalone-1.0.7.jar selenium-grid-remote-control-1.0.7.jar se
lenium-grid-remote-control-standalone-1.0.7.jar selenium-grid-tools-1
.0.7.jar selenium-grid-tools-standalone-1.0.7.jar selenium-server-1.0
.3-standalone.jar selenium-server-standalone-2.33.0.jar sikuli-script
.jar testng-6.8.jar velocity-1.7.jar

The first thing to check is, whether the problem is connected with the manifest or something else. If you can run your application with java -cp <allthejarfiles> <main-class> the problem is connected with the manifest. Keep in mind that the jar files specified in the manifest are relative to the jar file’s location. Trying to run the application with the -verbose:class option gives hint about which jar are really loaded.

Your manifest assumes the jars in the current working directory. So it would require dir attribute set to the folder where the jar exists.
Java task supports providing classpath in the arguments. Try giving the classpath in arguments.
<target name="run" depends="jar">
<java jar="build/jar/BANC.jar" fork="true" dir="build/jar" >
<classpath>
<pathelement path="${lib.classpath}"/>
</classpath>
</java>
</target>

I have faced the same issue in my project. I suggest that you should create a separate directory specially for the jar files, put all of your jars in that directory, and then point the lib address to that directory.
for example in your case say I have created a directory D:/jar_collection, where I have put all my jars physically.
<property name="lib.dir" value="D:/jar_collection"/>
<target name="setClassPath">
<path id="classpath_jars">
<fileset dir="${lib.dir}" includes="*.jar" />
</path>
<pathconvert pathsep=":" property="test.classpath" refid="classpath_jars" />
</target>
and it works fine. Please try it once.

Ant include external .jar

I want to include external jar to my java project. I'm using ant. External .jar is in folder lib. My build.xml looks something like that:
<?xml version="1.0" encoding="UTF-8"?>
<project>
<path id="classpath">
<fileset dir="lib" includes="**/*.jar"/>
</path>
<target name="clean">
<delete dir="build"/>
</target>
<target name="compile">
<mkdir dir="build"/>
<javac srcdir="src" destdir="build" classpathref="classpath" />
</target>
<target name="jar">
<mkdir dir="trash"/>
<jar destfile="trash/test.jar" basedir="build">
<zipgroupfileset dir="lib" includes="**/*.jar"/>
<manifest>
<attribute name="Main-Class" value="com.Test"/>
</manifest>
</jar>
</target>
<target name="run">
<java jar="trash/test.jar" fork="true"/>
</target>
</project>
But it doesn't work. When I want to import something from the external .jar, there is an error after command ant compile: package com.something does not exist.. What should I edit to get it working?
Exact error:
Compiling 23 source files to xy/build
xy/src/com/Test.java:5: package com.thoughtworks.xstream does not exist
import com.thoughtworks.xstream.*;
^
1 error

You should try without the includes attribute:
<fileset dir="lib" />
And in the jar part you include the classes like this:
<zipgroupfileset includes="*.jar" dir="lib"/>

You can't put external libraries into a jar and expect the classloader to use those jars. Unfortunately this is not supported.
There are ant tasks like one jar that help you, to create a jar file, that contains everything you need.
This bit is from the background information of one jar:
Unfortunately this is does not work. The Java Launcher$AppClassLoader
does not know how to load classes from a Jar inside a Jar with this
kind of Class-Path. Trying to use
jar:file:jarname.jar!/commons-logging.jar also leads down a dead-end.
This approach will only work if you install (i.e. scatter) the
supporting Jar files into the directory where the jarname.jar file is
installed.
Another approach is to unpack all dependent Jar files and repack them
inside the jarname.jar file. This approach tends to be fragile and
slow, and can suffer from duplicate resource issues.
Other Alternative:
jarjar: Jar Jar Links is a utility that makes it easy to repackage Java libraries and embed them into your own distribution

I also use ant to include a number of dependency JARs in my JAR. My compile task looks like this. Perhaps something similar will work for you.
<target name="compile" depends="init">
<javac srcdir="${src}" destdir="${build}" includeantruntime="false">
<classpath>
<pathelement path="${classpath}" />
<fileset dir="${deps}">
<include name="**/*.jar"/>
</fileset>
</classpath>
</javac>
<copy todir="${build}">
<fileset dir="${src}" excludes="**/*.java"/>
</copy>
</target>

sometimes u can use jar contents directly, just unzip
<unzip src="/Developer-Java/mysql-connector-java/mysql-connector-java-5.1.22-bin.jar" dest="${build_dir}" />