Question

I am having a problem producing a working jar file. I would like to end up with a jar file that can run itself by using the command java -jar myjar.jar

So far I have

<project default="jar" name="Create Runnable Jar fecrudbreset">
<target name="clean">
    <delete dir="bin"/>
    <delete dir="build"/>
</target>
<target name="compile">
    <mkdir dir="./build"/>
    <javac srcdir="./src" destdir="./build">
        <classpath>
            <pathelement location="./lib/sqljdbc4.jar"/>
        </classpath>
    </javac>
</target>
<target name="jar" depends="compile">
    <mkdir dir="./bin"/>
    <jar destfile="./bin/fecrudbreset.jar" >
        <manifest>
            <attribute name="Main-Class" value="FecruDBreset"/>
            <attribute name="Class-Path" value="."/> 
            <attribute name="Built-By" value="${user.name}"/>
        </manifest>
        <fileset dir="./build"/>
        <zipfileset dir="./lib" includes="sqljdbc4.jar"/>
    </jar>
</target>
</project>

The compile works however when I try to run the app I get the following error:

Exception in thread "main" java.lang.NoClassDefFoundError: com/microsoft/sqlserver/jdbc/SQLServerDataSource
    at FecruDBreset.main(Unknown Source)

update:
The main class I have uses the default package. The class is found and starts to run but fails when it cant locate the sql driver it seems. I guess I dont understand why it cant find it.

Here is how the main class is defined:

import java.sql.*;
import com.microsoft.sqlserver.jdbc.*;

public class FecruDBreset
{

/*
 * Used to reset / nuke fecru database
 */
public static void main(String[] args)
{

Also if I unzip the jar file that is produced the contents look like this:

META-INF/
META-INF/MANIFEST.MF
FecruDBreset.class
sqljdbc4.jar

Update 2: My source tree looks like this:

|-- bin
|   `-- fecrudbreset.jar
|-- build
|   `-- FecruDBreset.class
|-- build.xml
|-- lib
|   `-- sqljdbc4.jar
|-- readme.txt
`-- src
    `-- FecruDBreset.java

Anyone have any idea what I am doing wrong? Thanks much in advance.
Chad

Answer 1

@chadneal: Also if I unzip the jar file that is produced the contents look like this:

META-INF/
META-INF/MANIFEST.MF
FecruDBreset.class
sqljdbc4.jar

The main Jar cannot contain the sqljdbc4.jar. Instead, a reference to that Jar should be added to the class-path in the manifest.