Questions tagged [java]

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

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Is there a library that automatically parses time stamps from text?

To start, I have used Splunk for log data analysis. One of the great features about Splunk is that it can automatically detect the date from a log event, no matter what format you give it (it is 99% ...
Michael Plautz's user avatar
5 votes
1 answer
3k views

Tiny Linux Distro with JVM

I'm looking for a Linux Distro that has been stripped down completely with just the ability to install apps on it (particularly, a JDK). Any suggestions? Definition of tiny in this case: The minimum ...
Hooli's user avatar
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1 answer
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server-side & client-side templating engine for Java

Are there any alternatives to duel engine? We would like to use it but there's not enough documentation and downloadable examples. Perhaps something more popular and tested would be preferable. We are ...
Noobcanon's user avatar
5 votes
2 answers
1k views

UML to Java and Hibernate

I want to design my UML diagrams in a program, and have the program generate Java classes and Hibernate mappings. Java to UML generator on Linux is similar but does not fulfill all my requirements. ...
jasilva's user avatar
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1 answer
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Library for Generating CRUD Pages in Java Web Applications

I've had a bit of a play with Spring Roo recently and I like the feature that generates CRUD pages automatically for particular objects. In all my years developing JVM-based web applications I've ...
ATG's user avatar
  • 321
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
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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
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327 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
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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
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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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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
  • 171
4 votes
2 answers
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Java data structure to store latitude-longitude points, and retrieve them by area

I want to memorize geographical points for fast retrieval: I store a few {latitude, longitude, Java object} I query for all objects contained within n kilometers of a particular latitude, longitude ...
Nicolas Raoul's user avatar
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3 answers
782 views

Open Source tool to construct ETL parser

I need to create ETL parser in Java. Is there any opensource tool or framework available to build ETL parser for unstructured data. I want to create a parser and need to define format in properties ...
BlackPOP's user avatar
  • 143
4 votes
2 answers
4k views

Java library to transform kanji/katakana/hiragana to romaji

The Japanese language is mostly a combination of 3 alphabets, and it can be transliterated to romaji (Latin script). There are various strategies, Revised Hepburn would be ideal here. Example: ローマ字 → ...
Nicolas Raoul's user avatar
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Java Open Source Imaging Library as a substitute to the JAI

I am currently looking for an open source alternative to the Java Advanced Imaging API. I need a plugin for the javax.imageio package, and I need the functionalities that would other be in the JAI. At ...
Zizouz212's user avatar
4 votes
4 answers
2k views

Collaborative Real-time Java Coding and Compiling

I now this question has been asked somewhat similarly before, but I have done hours of research into some sort of application, whether browser based or not, that will allow multiple people (ie my ...
Rezkin's user avatar
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4 votes
2 answers
806 views

Tool to programmatically draw logic circuits into PDF

I'm looking for a (preferably open source) tool to visualize logic circuits such as this with the following constraints: The diagram description should be given programmatically (through java or by ...
lukas.coenig's user avatar
4 votes
2 answers
2k views

Is there Java Gimp API for manipulating images

Is there any java Gimp library to control, resize, or reduce image size (MB to KB) ? I'm looking for something like JGIMP. I tried to work on JGIMP , but it was an older version, and failed to ...
Rajkumar .E's user avatar
4 votes
2 answers
193 views

Embbeded HTTP Server for pluggable java web application

I want to develop a Java Web application with a similar architecture to Jenkins. It shall ship with an embedded server, so that it can be started like java -jar myapp.war We are using Jenkins for a ...
cheffe's user avatar
  • 171
4 votes
3 answers
140 views

Easy Java IDE with clean UI for learning purposes

I'm looking for a Java IDE for my PC so I can start to play around with the stuff I've been learning on an online course. Are there any IDEs that have a clean UI, without hundreds of buttons, and a ...
Eric Ryan's user avatar
4 votes
1 answer
666 views

Headless browser for Java that can execute JavaScript on a page

We have a JavaScript file that our customers are installing on their site to capture certain behaviors and emit events when certain actions are taken. We'd like to have a utility on our backend to ...
Eric Hydrick's user avatar
4 votes
2 answers
7k views

Java library to convert RTF file to DOCX/PDF file

I want to convert RTF file to PDF using java library. What are good open source java libraries which can be used to convert RTF to PDF file? I don`t want to use OpenOffice JodConverter library as we ...
Nirav Patel's user avatar
4 votes
3 answers
535 views

An Open-Source Java templating engine with inheritance

I'm developing a Java-servlet based project and I'm a newbie in this platform. I usually use Django, that has an awesome default template engine. Is there something similar for Java? PS: Template ...
Ranveer's user avatar
  • 2,000
4 votes
1 answer
1k views

Open-source Java-based scheduler with web user interface

I have an application that requires batch job scheduling on the order of maybe 100 jobs per day. I do not require (yet) that the jobs be chained together: right now each is independent of the others. ...
Matthew McPeak's user avatar
4 votes
2 answers
2k views

Java OCR library

I'm looking for some open optical character recognition (OCR) raw libraries that I can use to create a Java application that compares them. Anywhere I search I find just applications to OCR.
noscatheme's user avatar
4 votes
2 answers
100 views

Database software recommendation [closed]

We are a small construction company that currently has a very old, outdated database system that has been written over the past 20 years in Visual FoxPro. I have now been designated with the task of ...
Dan's user avatar
  • 41
4 votes
3 answers
742 views

Where can I find a Nashorn browser?

I'm looking for a browser that uses the Nashorn engine (article) instead of SpiderMonkey or V8, etc. Do any browsers use this engine yet?
user avatar
4 votes
3 answers
374 views

Java PDF library

I'm looking a free library for commercial use that allows me to generate PDF (from code) and add a HTML text (from HTML editor java-fx). I created my app on itext 7 and it works good but I have to ...
Michał Urban's user avatar
4 votes
1 answer
4k views

Java video manipulation library

I'm searching for a Java library that allows me to do some video manipulation like splitting a video in many parts and converting it into some other formats. I've found out that there are already ...
Gabriele Ciech's user avatar
4 votes
1 answer
48 views

Modern (2015) pet shop store to compare technology stacks

In 2001, Sun created the Pet Shop Store application. The application was implemented on many technology stacks (even .NET later) so developers could compare mesaures like development time and learning ...
Balazs Zsoldos's user avatar
4 votes
1 answer
2k views

Gratis SMS gateway

I need an SMS gateway software like Ozeki NG. I am testing this product right now, but before investing in a commercial product I would like to map the free alternatives. Kannel was recommended for ...
gregibbot's user avatar
4 votes
1 answer
204 views

Java code coverage library

I am setting up code coverage for a multi-module Java application. The application has integration/functional tests which span across modules. For example, module-service, module-dao and module-api ...
metacubed's user avatar
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0 answers
50 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
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
  • 141
4 votes
0 answers
313 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
52 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
1 answer
3k views

Java RADIUS Client Libraries

I'm interested in what Java RADIUS client libraries are available and actively supported. This question is similar to What (good) Java RADIUS server libraries are out there?; however, I'm interested ...
shelley's user avatar
  • 141
4 votes
0 answers
274 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
151 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
90 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
2 answers
369 views

Stable free (open source) Java PDF library for paragraphs of text only

In a project I am working on, I have a requirement to generate a PDF. This PDF will contain text only, and the contents of the text will be rather variable. Most of the text should be printed in ...
Kristof's user avatar
  • 269
3 votes
3 answers
433 views

Java object cache (in-memory)

I'm looking for recommendations for libraries that help me create an efficient and fast object value cache in Java. My needs are as follows: Write: There are up to like 50000 writes per second to ...
peterh's user avatar
  • 131
3 votes
2 answers
3k views

Java Perceptual Hash

I need to check for similar images in our Java server (backend, 1.8, spring). We will have lot of images, so finding similar ones one by one is not an option. I need to use some kind of Hashing ...
szabkel's user avatar
  • 173
3 votes
2 answers
182 views

Recommended software for an Intranet?

We're on a governamental organization with about 150-160 users. This organization is spread between a central office, and 10 small delegations, with 4-5 workers on each delegation. We're looking for ...
mHouses's user avatar
  • 400
3 votes
1 answer
1k views

Java Client for WebRTC or Janus Gateway

I'm here asking for some assistance of this community since my Google abilities aren't very top notch lately. I was looking for a Java Client for Janus Gateway WebRTC Server. I know that could be ...
Paulo Oliveira's user avatar
3 votes
2 answers
97 views

Java development environment

I am totally new to this whole programming stuff. So I started with simple websites by using Atom. But now I want to do something with Java for a Raspberry Pi project. I already tried it in Atom but ...
user51472's user avatar
3 votes
3 answers
81 views

Which simple data storage option for large amount of non-relational data

I am looking for a good solution to store and retrieve a large set (let's say a few hundred million or even up to a billion) of data items consisting mostly of strings (but a few numeric fields as ...
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