I created a simple project using WindowBuilder in Eclipse and my goal is to send it by email. I don't know what kind of computer the person is using, so I exported my project into a 'Runnable JAR File' and checked the option 'Extract required libraries into generated JAR'.
The problem is that the generated JAR file is 20MB in size!!! The project has only one simple window - nothing complicated or fancy.
I found that some people use ProGuard to include only what is really needed.
I would like to know if there is a way to optimize it 'manually'? Are there libraries that are automatically included when creating a WindowBuilder project, and how may I determine which libraries I can remove?
Thank you.
I've had the same Problem using WindowBuilder. My solution was to look for the imports in my .java file, e.g.: import org.eclipse.swt.SWT;
In the Project Explorer in Eclipse you can see that there are much more imports than needed. Those 'Build Paths' can be removed carefully.
Simply rightclick on a .jar import like "com.ibm.icu_52.1.0.v201404241930.jar" and click on "Build Path" and "Remove from Build Path". Unfortunately, you can't remove or delete the packages inside the .jars.
But using this method, I managed to reduce the size from 20.7MB to 3.87MB. It's something...
Like fge said, send the source. Or upload the .jar to dropbox if you require you partner to access all of the files in the .jar.
If you don't like dropbox, find some other cloud storage solutions through a google search. Github or Bitbucket could also be an alternative to dropbox.
Cheers.
Use the Eclipse plugin FatJar. FatJar shows you which libraries are getting imported and allows you to specify which .jars, libraries, etc., that you want built into your JAR.
FatJar
Your jarfile is too big due of the project template. Create a sample java project, then use windowdbuilder components. Do not create a project Swing Template, by this way eclipse is gonna import all eclipse gui toolkits.
Tried it out with my way, my application's length equals to 3Ko against 24MO with the template project
Related
I created a project but I am using an external library for it. enter link description here
I added the library to my Beans as follows:
Right click on folder "Libraries"
Add Library
Create...
Gave it a name "gson 2.7"
Picked the class, source and javadoc files.
I went on and continued programming and then I added my code to Github. Then when I cloned it my Library was missing.
How can I fix this ? How can I make it dynamic so I dont have to worry about this anymore. In other words I need to add the library to my code and not just the reference.
Thanks a lot for the help
Just upload a copy of your library to github.
I have not used netbeans, but from what I understand it adds the jar somewhere outside of your project directory, and it simply adds the location of the jar to your classpath. When you upload and then clone the project from github, the jars are not uploaded/cloned, and the project structure metadata for your project is also lost from netbeans.
My suggestion is to learn and start using a build tool like maven. It takes up the responsibility of adding your dependency libraries everytime, given that you have an internet connection. It also adds the libs to the target directory of your project folder, so you probably will need the internet connection only once. The libs will be uploaded and cloned back from the github repo everytime.
IDEs like eclipse have inbuilt support for maven, so you don't even have to worry about executing the mvn commands. Here's a tutorial that will get you intrigued - with the IDE that you prefer.
https://platform.netbeans.org/tutorials/nbm-maven-quickstart.html
Thanks a lot for all the replies and comments.
Technically there are two approaches to my problem. For this articular example I chose to copy the external jar files to my project.
1. Copy jar files to your project.
Go to project properties
Under Libraries folder make sure to set up a libraries folder by following the steps.
Add Library at the bottom ( you can create or import; since I already had gson in Netbeans I just imported it.)
Press ok to confirm and you are done!
2. Use Maven
Go to plugings and make sure you have all Maven plugins installed, if not do so.
Create an new project and choose maven/java application
Follow the prompts
At this point you can start coding (in my case I just imported my class files from the other project)
Right click in "Dependencies folder and then "Add Dependency"
Under query type the repository you are looking for; in my case "com.google.code.gson : gson : 2.7"
Click add and you are done!
Thanks a lot to everyone for the help :)
I have a java project that I created in the NetBeans IDE version 8.0.1. The project contains a gui which I created with the NetBeans Gui builder, two external API's, and of course some of my personal code. I would like to make this project available to the public, but I don't want someone to be able to just take my project and upload it into an IDE and see all of my work. How do I need to go about making my project codew private and/or inaccessible. All the user should be able to do is run the jar file and use all the functionality of the program. Thanks for the help!
By default JAR files are build without sources if you use NetBeans (with its Ant-based build system), Maven or Gradle. It will only contain *.class files and resources (text, XML, images and other files).
Of course it is possible to decompile *.class files from your JAR. If you want to go an extra step you can obfuscate generate code to make it harder to understand what's going on there.
Im writing a server based application and i would like eclipse to be able to interact with it.
I was wondering if eclipse PDE can handle using an external jar to interact with RabbitMQ. Also would i have access to the editor i.e. could the server respond and then update the code on the users end inside the editor pane?
Also if anyone knows any good resources for eclipse plug-in development that would be great as the only books i can find on amazon are a few years old
Thanks,
Ben
You can include any JAR in your plugin and write code that uses it.
Copy the JAR into your plugin project (usually they're placed into a lib folder in the project).
Open your plugin's manifest or plugin.xml file and go to the Runtime tab.
In the Classpath section, use the Add... button to add the JAR.
Go to the Build tab and make sure the JAR is selected at least for the Binary Build.
Save.
Now you should be able to write code that uses the JAR and when you build your plugin it will be packaged in your plugin.
If you find that you'll be writing multiple plugins that go together and all use the same JAR(s), there's a better way to package it, but I'll leave those details out for now.
Ok so there are tonnes of API's out there. I need to use some of them like JIntellitype, iText, docx4j etc. But the problem is I do not know how to go about it in Netbeans.
I tried following the instructions in readme for all these API's but it does not work since there is something I am doing wrong. I am a newbie at JAVA and Netbeans.
Thanks!
[Update]
This is what I tried to do.
I downloaded the JIntellitype API. It contains lots of files including JAR,DLL,CPP etc. When viewed through File->Open Project from Netbeans this folder is displayed as a project.
I created a new JAVA Application project from Netbeans.
I right clicked the Project->Properties->Library and added the API folder there.
Then I tried importing one of the classes from the API called HotkeyListener as follows:
import jintellitype.HotkeyListener;
I received an error saying package does not exist.
Generally you have to add your API jar to your project. Open project properties, find where external libraries are added and add them. Once you are done you can import library classes and use them.
like AlexR said, you should add the jar file with the jintellitype.HotkeyListener in it, not just the directory. You can open jar files with winrar, winzip, 7zip etc...
Regards
I have a Red5 application that i want to work on using NetBeans 6.8.
I know I can use a web Free-Form Application, the only problem that I'm having is to add external jar files.
When I go to the project's properties, Where exactly do I add the external jars that I need in order to properly compile the application?
update
i think that the following URL addresses my problem but i can't really understand the solution.
http://www.bradmcevoy.com/blogs/netbeans_ant_ivy.html
You can add the external libraries to your project's Libraries folder, or you can add them in the NetBeans' Tools > Libraries dialog. The latter can be shared among several projects. This answer includes illustrations.
Addendum: For free-form type projects, the Projects > Properties mentions, "Any settings modified on this panel are for IDE purpose only and do not change the build script. If you want to make changes in build process, please modify your build script manually."
found a solution here but it's probably for a lower version of netbeans:
http://forums.netbeans.org/viewtopic.php?p=5329
i get an error on the tag.
Since it is a free-form project, you have to make sure that your build script puts the correct jars into the compile-time classpath. You also want to make your Netbeans project libraries match for auto-complete purposes and error highlighting and such (ie when you view Project Properties->Java Sources ClassPath).
Ok I finally resolved the issue by re-creating the project using the step by step tutorial in the following URL : http://blogs.oracle.com/coreqa/entry/setting_up_freeform_project_correctly