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7. jkr 5,750
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11. aozarov 3,600
11. rrz@871311 3,600
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05.01.2007 at 01:35AM PDT, ID: 22544372

	[x] Attachment Details

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6.8

NetBeans and Ant: Building second jar file based on subset of source

Zones: NetBeans IDE, Java Programming Language

Tags: netbeans, jar, file, ant

I'm using NetBeans IDE v5.5 to compile a collection of sources into an executable .jar file.

What I'm trying to do is get NetBeans to automatically build a second .jar (ccd.jar) based on a subset (*1) of my code, everything except the aqm folder, which compiles in all the external libraries (*2), to produce a single .jar solely dependent upon the JRE. I've included a file structure appendix below.

[Parts]
*1 Subset
The code is common between both jars except that:
aqm.jar includes all the source files and its Main class is apecc.qm.aqm.App
ccd.jar includes all sources except the aqm folder (see file structure below) and its Main clas is apecc.qm.ccd.App

*2 External libraries
aqm.jar works in an environment where it has access to the external libraries, so the current jar building process leaves them as external references.
ccd.jar needs to build those external libraries into itself, to produce a single unified jar with no external references (except the JRE obviously).
As I understand it, Jar (the tool, not the file) can't build jar files that recursively include other jar files, so I think I need to flatten the external libraries to include them in ccd.jar

[Existing files]
Here are links to my current Ant files within NetBeans:

http://www.lightenna.com/sitefiles/lightenna.com/build.xml
http://www.lightenna.com/sitefiles/lightenna.com/build-impl.xml
http://www.lightenna.com/sitefiles/lightenna.com/project.xml

They currently compile the sources and produce a single .jar file ( aqm.jar) which contains all my code, leaving a dozen or so libraries as external references.

[File structure]
My code
build
+ classes
+ apecc
+ qm
+ aqm (included in aqm.jar, excluded from ccd.jar)
+ ccd
+ core
+ geo
+ hub
+ qed
+ rep
+ test
+ com (directory containing a hierarchy of library .classes compiled from
source - "Internal libs")
- log4j.properties

External libs (left as external references for aqm.jar, compiled into
ccd.jar)
+ dist
+ lib
- J2PrinterWorks.jar
- TrayIcon.jar
- activation.jar
- beandt.jar
- commons-collections-3.1.jar
- commons-configuration-1.2.jar
- commons-email-1.0.jar
- commons-lang-2.1.jar
- commons-logging.jar
- commons-pool-1.3.jar
- concurrent.jar
- dbswing.jar
- dx.jar
- jai_codec.jar
- jai_core.jar
- jakarta-oro-2.0.8.jar
- jbcl.jar
- jdom.jar
- junit-3.8.1.jar
- log4j-1.2.9.jar
- mail.jar
- mysql-connector-java-3.1.12-bin.jar
- openmap.jar

Any questions please let me know.
Cheers, Alex

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Question Stats

Zone: Programming

Question Asked By: alexecho

Solution Provided By: CEHJ

Participating Experts: 2

Solution Grade: B

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05.01.2007 at 01:37AM PDT, ID: 19006702

Rank: Genius

CEHJ:

>>so I think I need to flatten the external libraries to include them in ccd.jar

Just include them as a zipfileset

05.01.2007 at 01:44AM PDT, ID: 19006730

Rank: Genius

objects:

you can (and should) avoid adding your external jars to your application jar.
instead just add them to archive tag in your html.
much simpler to manage and will greatly improve startup times.

05.01.2007 at 02:27AM PDT, ID: 19006850

Rank: Genius

CEHJ:

http://www.experts-exchange.com/Programming/Languages/Java/Q_21703809.html

gives you an example of what you need

Accepted Solution

05.01.2007 at 03:33AM PDT, ID: 19007018

alexecho:

Thanks guys,
Based on CEHJ suggestion I've written this addition to my build.xml:

<jar destfile="dist/ccd.jar" compress="true">
<manifest>
<attribute name="Main-Class" value="apecc.qm.ccd.App"/>
</manifest>
<fileset dir="build/classes" includes="apecc/qm/ccd/**/*.*"/>
<fileset dir="build/classes" includes="apecc/qm/core/**/*.*"/>
<fileset dir="build/classes" includes="apecc/qm/geo/**/*.*"/>
<fileset dir="build/classes" includes="apecc/qm/hub/**/*.*"/>
<fileset dir="build/classes" includes="apecc/qm/qed/**/*.*"/>
<fileset dir="build/classes" includes="apecc/qm/rep/**/*.*"/>
<fileset dir="build/classes" includes="apecc/qm/test/**/*.*"/>
<fileset dir="build/classes" includes="apecc/qm/ccd/**/*.*"/>
<fileset dir="build/classes" includes="com/**/*.*"/>
<fileset dir="build/classes" includes="log4j.properties"/>
<zipfileset src="dist/lib/activation.jar" includes="**/*.class" />
<zipfileset src="dist/lib/beandt.jar" includes="**/*.class" />
<zipfileset src="dist/lib/commons-collections-3.1.jar" includes="**/*.class" />
<zipfileset src="dist/lib/commons-configuration-1.2.jar" includes="**/*.class" />
<zipfileset src="dist/lib/commons-email-1.0.jar" includes="**/*.class" />
<zipfileset src="dist/lib/commons-lang-2.1.jar" includes="**/*.class" />
<zipfileset src="dist/lib/commons-logging.jar" includes="**/*.class" />
<zipfileset src="dist/lib/commons-pool-1.3.jar" includes="**/*.class" />
<zipfileset src="dist/lib/concurrent.jar" includes="**/*.class" />
<zipfileset src="dist/lib/dbswing.jar" includes="**/*.class" />
<zipfileset src="dist/lib/dx.jar" includes="**/*.class" />
<zipfileset src="dist/lib/J2PrinterWorks.jar" includes="**/*.class" />
<zipfileset src="dist/lib/jai_codec.jar" includes="**/*.class" />
<zipfileset src="dist/lib/jai_core.jar" includes="**/*.class" />
<zipfileset src="dist/lib/jakarta-oro-2.0.8.jar" includes="**/*.class" />
<zipfileset src="dist/lib/jbcl.jar" includes="**/*.class" />
<zipfileset src="dist/lib/jdom.jar" includes="**/*.class" />
<zipfileset src="dist/lib/junit-3.8.1.jar" includes="**/*.class" />
<zipfileset src="dist/lib/log4j-1.2.9.jar" includes="**/*.class" />
<zipfileset src="dist/lib/mail.jar" includes="**/*.class" />
<zipfileset src="dist/lib/mysql-connector-java-3.1.12-bin.jar" includes="**/*.class" />
<zipfileset src="dist/lib/openmap.jar" includes="**/*.class" />
<zipfileset src="dist/lib/TrayIcon.jar" includes="**/*.class" />
</jar>

It outputs a ccd.jar, but I'm just looking at some other errors (which may not be related). I'll report in as soon as I work out what's going wrong and accept the solution. Thanks for your time.

05.01.2007 at 03:35AM PDT, ID: 19007022

Rank: Genius

objects:

your users are going to hate updates :)
apps are meant to broken into lots of jars for a reason.

05.01.2007 at 03:40AM PDT, ID: 19007038

Rank: Genius

objects:

just noticed its an app, not an applet.
In which case you can leave all the jars seperate and just include their names in the manifest.
That way you don't need to distribute *all* the classes everytime you make a change.
You'll find it a lot easier to manager that way.

and if you have some reason for wanting to have one large jar then have a look at

http://one-jar.sourceforge.net/

avoids all the issues you can have with expanding the jars.

05.01.2007 at 04:12AM PDT, ID: 19007156

alexecho:

Hi objects,

I totally get your point and I agree, but you don't know the project background. This is a project I inherited and the (single) ccd.jar is being wrapped up in a Windows installer and shipped on CD. My priority at the moment is to get the process working as designed, then to make improvements (like including a lib directory and referencing it).

The reason I haven't done that already is actually a Windows limitation. When I code the shortcut (which goes into the Start menu) it can only accommodate a limited number of characters (255 I think), which is enough to include a single jar in the classpath, but not enough to include 15 jars in the classpath. The solution is to write a batch file, get the installer to copy the .bat and the shortcut to run the .bat, not java directly. There are of course issues with that too (what if the files aren't installed in the default 'Program Files' directory.... problems problems problems... so I'm just dealing with one at a time ;-)

Cheers, Alex

05.01.2007 at 04:17AM PDT, ID: 19007178

Rank: Genius

objects:

> it can only accommodate a limited number of characters (255 I think), which is enough to include a single jar in the classpath, but not enough to include 15 jars in the classpath.

u don't need to include all jars in the classpath, you should either specify them in the jars manifest
or specify the directory that contains them using -Djava.ext.dirs=...

http://today.java.net/pub/a/today/2005/04/26/extending.html

if you have to deliver a single jar then have a look at one-jar, at least saves all the jars being expanded.

Assisted Solution

05.01.2007 at 09:39AM PDT, ID: 19009727

Rank: Genius

CEHJ:

:-)

>>at least saves all the jars being expanded.

The jars are NOT expanded

20080236-EE-VQP-29