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Questions tagged [java]

Software regarding Java development tools and libraries for the Java programming language.

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Alternative to Struts-Menu for menus in Struts 2.X application

I am currently using Struts-Menu to handle my menu needs for my Struts 2 J2EE application. It is not necessarily a package I wish to work with I have found by playing around with it. So what is an ...
demongolem's user avatar
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9 votes
1 answer
2k views

Java calendar library with support for recurring events / exceptions, etc

I am looking for a calendar module/library that I could use in my simulation. My idea is to fill such calendar with events, single shot and recurring. This calendar should be able to give me next ...
wilx's user avatar
  • 285
5 votes
1 answer
2k views

Java library for parsing Javadoc comments

I would like to be able to programmatically convert Javadoc comments (such as those in the generated code of LWJGL) to other formats (such as Markdown). This would allow me to do things like ...
Sam Estep's user avatar
  • 175
5 votes
0 answers
258 views

Java library for macrobenchmarks

I am working on a macro benchmark (the Train Benchmark) in Java to evaluate the performance of various database management systems. I took some steps for eliminating potential threats to its validity: ...
Gabor Szarnyas's user avatar
5 votes
0 answers
329 views

JDBC Connection Pool

What is the state-of-the-art in JDBC connection pool libraries? Years ago the Tomcat JDBC Connection Pool library was developed as an alternative for highly-threaded environments because of ...
Basil Bourque's user avatar
5 votes
0 answers
5k views

An alternative to Apache Tika in Java?

Do you know an alternative to Apache Tika in Java? This library is giving me problems and I need to resolve this ASAP. I will appreciate your advice. Edit: Apache Tika is a library that is used for ...
Mario S's user avatar
  • 279
5 votes
1 answer
2k views

Android Virtual Microphone

I would like to know whether some tool exists to create a virtual microphone on Android. For example, when I connect my headset, my phone uses the microphone on the headset. Instead, I want to be ...
Arijoon's user avatar
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5 votes
0 answers
98 views

Java lightweight library for QBE (non-JPA) open source / free?

I am looking for a freeware or open source java library that, given a JDBC connection, it can assemble/execute a QBE query, hopefully, using a POJO or HashMap as example. It does not have to deal ...
Leo's user avatar
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4 votes
0 answers
58 views

Is there a SPICE client Java library similar to how there is one for VNC?

There is a VNC client library called Vernacular VNC written in Java for getting the graphics output and of course doing everything else a VNC client would need to do. I was wondering if there is the ...
Anston Sorensen's user avatar
4 votes
0 answers
75 views

Machine Learning library in Java

I'm new to Machine learning, and am trying to learn to develop some deep neural networks applications, possibly for both data analysis and multimedia/image processing. I'm a Java person myself so I ...
angel_30's user avatar
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4 votes
0 answers
2k views

Java Library for Creating ISO that's still supported

I'm working on a project that involves creating DVD ISO's from data that Java has access to. I can make a system call to something like "mkisofs", but that really affects the portability of the ...
Jake's user avatar
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4 votes
0 answers
321 views

Audio editor written in Java

I'm looking for an audio editor written entirely in Java, without any dependencies that have to be installed. A self-contained JAR file that I can run from anywhere, even on machines that do not ...
Token26354's user avatar
4 votes
0 answers
54 views

Key-value store with tiered cache

The nodes that will be accessing the data are separated from the server by high latency low speed connections. I would like each node to have an LRU cache using around 250MB of ram and 20GB disk to ...
Pascal's user avatar
  • 161
4 votes
1 answer
1k views

Numbers/Text/Picture recognition in an Image using Java

I'm working on a university project, I have to find an existing Java code that allows number recognition on a picture of a soccer t-shirt. The title is more general because the problem can be seen as ...
walzer91's user avatar
  • 141
4 votes
0 answers
63 views

Java library that provides a Mac OS X-style color picker?

Is there a library/SDK/etc. that brings the Mac OS X color picker to Java? I think it's the best color picker out there, so I'd love to use it in my cross-platform applications.
Ky -'s user avatar
  • 345
4 votes
0 answers
276 views

Which SQL engine atop Hadoop?

Since Hadoop came out, there have been various commercial and/or open-source attempts to expose some compatibility with SQL. I am seeking one which is good for low-latency querying, and supports the ...
Samuel Marks's user avatar
4 votes
0 answers
154 views

Self generated java file implementing STAX to parse XML files using available xsd

I have about 100 xml files each around 5MB. I have an xsd. Is there a way to generate a java class that will parse these files using the xsd I have ? Is there any tool that can do this? or will I ...
maha_funk's user avatar
  • 141
4 votes
0 answers
80 views

Common regex generation java library

I'm looking for a Java library which can generate common regular expressions, such as: numbers of n digits alphanumeric sequences (no special chars) URLs email addresses IP addresses etc. The ...
Paolo Fulgoni's user avatar
4 votes
0 answers
94 views

Class relationship "overviewer"/"explorer" for Java code

I'm looking for a tool for rapidly visualizing structural relationships in Java code. The hard requirements are: generates structural diagrams of selected classes and packages, the diagrams are ...
mikołak's user avatar
  • 201
3 votes
0 answers
608 views

Nice admin interface for Spring applications similar to Django Admin

I am a big fan of building Spring based Java applications. Recently I worked a little in Django and saw the Django Admin that is automatically generated for the app - and it blew my mind. Since then ...
er453r's user avatar
  • 131
3 votes
3 answers
215 views

OCR solution for scanning scanned documents

We want to scan scanned documents (PDF/Images), and extract the meaningful information as key value pair or any format. like When a suppliers sends us invoice as scanned pdf, our solution should ...
Salman Khan's user avatar
3 votes
2 answers
35 views

Remote Database and Table creation using MySQL and accessing information using the JAVA

I don't know if this question has been answered before but I could not find any answer so I am posting. If found duplicate I am really sorry and guide me to the original post. I am trying to learn how ...
BATMAN_2008's user avatar
3 votes
0 answers
15 views

ChatBot with HTTP routing capabilities

I got a simple idea around an automated issue agent and I would like to put it into real world. It should be a ChatBot application that will get requests sent by another application (say Rest HTTP ...
tmarwen's user avatar
  • 131
3 votes
1 answer
126 views

Low delay and low throughput communication between Java and Python

I am creating a game where the engine and graphics are running on Java, and one of the players which is AI controlled, in Python. I need to setup some communication method between these two, with the ...
Luis Ferreira's user avatar
3 votes
0 answers
67 views

Eclipse plugin to warn about recursion

Recursion can often be unintentional and result in a Stackoverflow (.com). Especially as someone who doesn't like recursion very much, I would like to see a warning if there is some in my code. I'm ...
Fabian Röling's user avatar
3 votes
1 answer
61 views

Staging Artifacts in Java

Java Artifacts are often staged through different statuses until they are eventually released, so having alpha-status, beta-status, release-candidate-status, and, finally, release status (as an ...
J Fabian Meier's user avatar
3 votes
0 answers
459 views

Double Ratchet Algorithm (Axolotl) implementations

I'm looking for libraries that implement the Double Ratchet Algorithm (known also as Axolotl). So far I've found the following: https://github.com/wireapp/proteus https://whispersystems.org/docs/ ...
kmalmur's user avatar
  • 131
3 votes
0 answers
27 views

Very small, limited-to-javax.inject dependency injection framework for Java

Is there any small DI framework out here that implements the javax.inject package (bar the @Scope annotation: @Singleton is enough) and provides only a container around it to get instances from? This ...
Olivier Grégoire's user avatar
3 votes
0 answers
51 views

A java-based library for FCA

I have had a chance to go through Formal Concept Analysis and found it a powerful tool for Information Retrieval (IR) topics. Nonetheless, I found it very difficult to find a comprehensive ...
lonesome's user avatar
  • 131
3 votes
0 answers
120 views

Java library to calculate the semantic distance between two documents

I am looking for any java library that calculates the semantic distance between two documents. I know that WS4J can calculate semantic distances using wikipedia data, also lingpipe has some NLP ...
user avatar
3 votes
0 answers
140 views

Is there a Java/Swing datepicker that can select a range of dates?

I've looked through some Java Swing datepicker libraries, but I haven't found one that can select a range (a pair) of dates, like many travel search sites do. Is there one you've run across, of high ...
Joshua Goldberg's user avatar
3 votes
0 answers
2k views

Java Codec API to convert JPEG frames/images to MPEG video

I need your help & wisdom for selecting a Java Media Codec Library. Requirements: Codec most be 100% Java implementation (No native dependencies) Codec most be able to convert JPEG images to all ...
Aryan Naim's user avatar
3 votes
0 answers
96 views

Where can I find a free Java Library to read multiple email formats

Our team has used Aspose .NET in the past (a product we purchased) to read multiple versions of email messages and parse the information for their content. We now want to to do a similar thing in ...
demongolem's user avatar
  • 1,427
3 votes
0 answers
105 views

Google Glass - Code39 Scanner

I need a code39 Scanner for my glass application. I've tried with ZBar (version 0.2), but it doesn't work. As you can see the picture is upside down and the quality is very bad. ZBar only works with ...
user5021's user avatar
3 votes
1 answer
3k views

Tools for generating JPA entity classes from database tables

I have been using Hibernate-Tools and JPA tools in Eclipse to generate JPA entity classes from an existing database. The problem is that this process is really complex to set up and has many small "...
dimzak's user avatar
  • 1,435
3 votes
0 answers
377 views

Java UML Reverse Engineering Tool for component view

After reading this post I found another problem. I am looking for a free reverse engineering tool that can analyse a multi-modules Java project and create an editable UML file but not the class ...
рüффп's user avatar
3 votes
0 answers
83 views

Java CPU profiling tool with API for data collection and reporting

I am looking for CPU profiling tool for Java. The data collection agent must supports multiple platform (windows 32 and 64bit, Linux 64bit) should able to deploy on tens of machines without ...
Jayan's user avatar
  • 251
3 votes
0 answers
577 views

Free alternative to SVNKit?

I'm looking for an alternative to SVNKit that has a license more like Apache or BSD, i.e. a license that does not require me to release the source code of my own Java program that is using the SVN lib....
user1050755's user avatar
2 votes
1 answer
32 views

Is there a Swing library for Windows-style progress bars?

If I create a progress bar using C# and Windows Forms, it has shading that gives it a 3D look as well a semi-transparent white animation that moves from the left to the right: Is there any library ...
Cardinal System's user avatar
2 votes
0 answers
343 views

Running Java computations on the GPU on an m1 Mac?

I develop and run scientific computations in java on my MacBook Pro. I'd like to start learning gpu programming in java so I can optimize some of my pipelines. Ideally I can start with a high-level ...
Matt Groth's user avatar
2 votes
1 answer
108 views

What framework is best for a 2D top-down shooter in Java?

I'm creating a roguelike shooter in Java where the bullets are projectiles (not hitscan), the camera moves with player movement, so that the player character is always in the middle, and where I'm ...
devor's user avatar
  • 21
2 votes
0 answers
643 views

Lightweight thread-safe persistent queue for Java

I'm looking for some fast lightweight thread-safe implementation of a persistent queue which can be easily embedded into a Java service. Something like https://github.com/bulldog2011/bigqueue but with ...
Rina's user avatar
  • 21
2 votes
0 answers
48 views

What would be a good Java library for implementing a graphical programming interface?

I would like to make a graphical programming interface somewhat like Blender's node interface, which looks like this: There's no need for automatic layout of the graph, the user's going to manually ...
Hakanai's user avatar
  • 187
2 votes
0 answers
38 views

Minimalistic Java Code Formatter / Formatting Tool To ONLY fix certain aspects (eg whitespace in expressions)

Java code formatters that I'm aware of (eclipse JDT, intellij, astyle, prettier) are all quite aggressive and try to change all the code format aspects that they are technically capable of. However, I ...
Andreas Meyer's user avatar
2 votes
0 answers
565 views

Library to generate Version 1 UUIDs to be called from Java

Version 1 UUIDs represent a point in space and in time. The "space" part is the MAC address taken from the networking port of the computer to uniquely identify where the id was generated (...
Basil Bourque's user avatar
2 votes
0 answers
442 views

Animated WebP decoder for Java

I am looking for a good Java library that can decode animated WebP imgaes to PNG files for each frame. I have come across libraries such as JMagick, webp-imageio, and JDeli, but these libraries are ...
Spotlightsrule's user avatar
2 votes
0 answers
79 views

File-system browser for JavaFX

I am looking for an implementation of a control in modern JavaFX (OpenJFX) version 14 or later to display the contents of a folder from the file system of the host computer. I have learned how to ...
Basil Bourque's user avatar
2 votes
1 answer
227 views

Are there libraries to detect Linux distribution information in Java?

I've been looking for some solution to find the name and version of the Linux distribution where I am running my Java code, eg. Ubuntu 18.04, CentOS 6, etc. I am aware of files as /etc/os-release, or ...
Himanshu Shekhar's user avatar
2 votes
1 answer
404 views

GUI based Forms creation and data management

I am looking for an open source project or solution (preferably Java based) which basically allows me to create forms & persist the data into a back end data store (SQL, NO-SQL doesn't matter but ...
Broken_ninja's user avatar
2 votes
0 answers
15 views

Web framework visualizing decision rules (interactive graph)

I need web framework for creating visualization of decision rules. This is project for my master thesis (only 4 months remains). My vision is: Visitor uploads file with decision rules. Next he can ...
mateuszl1995's user avatar

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