Where to look for open source Java libraries? [closed] - java

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I am looking for a Java library to incorporate into a demo web app and have looked on github, Google Code and sourceforge. So far, sourceforge seems to have the biggest selection. Are there any other places to look, or is sourceforge going to be my best bet?

I believe you should take a look on Java-Source.net and OpenSymphony

Perhaps instead of just wandering randomly, you could tell us what kind of library you need and listen to recommendations. That said, obvious sites include Apache, particularly Jakarta, and Savannah. Also note that not everything hosted on GitHub is FOSS.

Freshmeat is also a large source of open source projects. Here is a list of projects tagged as Java libraries.

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FIX Protocol sample source codes in JAVA? [closed]

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I have to develop trade capture modules in JAVA using Financial Information eXchange(FIX) Protocol 5.0 SP2.
Although I've tried to look up some tutorials, I cannot get any sample source codes.
How can I get some sample source codes in JAVA using FIX protocol 5.0 SP2?
FIX is a protocol, not a library, so searching for "FIX source code" is misguided and won't get you anywhere.
You need to decide on a library or engine that implements the FIX protocol, and then find examples apps that use it.
For Java, I can suggest QuickFIX/j. There's plenty of docs on that site, the source repo has demo apps.

Is there any visual tool for writing Java classes in Bytecode for Eclipse or IntelliJ? [closed]

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I'm not asking for an opinion here - just a fact: is there a plugin, tool, or technique that lets me write classes or at least method bodies directly in bytecode in Java in either Eclipse or IntelliJ, and what is it? I'm not looking for runtime codegen, I want this at compile time.
I found one here: https://plugins.jetbrains.com/plugin/8461-bytecode-editor but there is no download link and I have no idea how to build it (I tried, I really did). But it's basically everything I want.
In .NET I use the excellent IL Support plugin for this, but I haven't found a similar solution for Java.
There is a download link on that page but you don't need to download it directly so that doesn't matter. IntelliJ provides a plugin installer In Settings>Plugins. At the botttom of the Plugins page is a button to 'Browse repositories'

java library for computing of derivatives and integrals [closed]

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I want to develop a small application in JAVA, for personal use, that solves the derivatives and integrals. Can you tell me some good library to do this, and some example?
Thanks
Commons Math contains the ability to integrate using different methods - see here, section 4.5. The example here shows you how to use the TrapezoidIntegrator, the others work pretty much in the same way.
SO post
Library reference hosted on google code.You can also use JLink with Mathematica to send your calculations part to mathematica and get appropriate results back.

How Translate ByteCode to Machine Native Code [closed]

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I am looking for a translator for translate Java ByteCode to Machine Native Code before execution to improve performance.
I heard that OpenOffice is made with JAVA, but I can't see any jar file in his installation folder, therefore, maybe there is a translator but I can't find it.
Does anyone know some tool or comercial product to do that?
Thanks!
There are multiple solutions. All are not ideal.
Take a look here (exe4j). To learn more read this article.
Give a look to Avian JVM. See my reply here to this question for pointers on how to embed it and what class libraries you can use to generate your stand-alone executable.
if you just need a managed language/platform, you can also use .NET/Mono AOT. See the mkbundle tool included with Mono 2.x.
Please have a look into https://www.graalvm.org/.
It could build a native image from your jar and run it as binary (native code).

Java licensing API [closed]

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I just came across TrueLicense Project API for licensing Java projects. I want to know are there any other similar APIs available? Please suggest me some.
Also I am not familiar with the process of generating the keystore which is needed for this. Can anyone guide me about the process of generating .store file which is used in this API?
Thanks.
Following is the link where steps are provided to generate provate and public key stores using java keytool.
http://technologytriumph.blogspot.in/2012/10/steps-to-generate-public-priavet-key.html
Truelicense is a good option as per my view.
I just tried jLicense and it worked fine for me. I tested the GUI which creates the license keys and then ran the test to test the license.
http://freecode.com/projects/jlicense
http://www.websina.com/products/jlicense.html

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