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Questions tagged [java]

libraries for Java and Java development tools

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How to find unused classes at runtime on jvm

I wanted to analyze an application running on an Java JVM for unused classes. There are some plugins around there for IDEs, some for static code analysis. But the apllication I am looking at is using ...
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Java zip library making use of Java 8 features (lambdas, streams)

I know there are zip libraries like zeroturnarounds library, commons compress or truezip. And there are discussions like this on stack overflow. I would like to use a royalty fee free software ...
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1answer
15 views

Fastest Java HTTP Library

I’m working on a program that sends A LOT of HTTP requests (in an ordered way, since they depend on each other) and checks their response. I’d like to know what’s the most high-throughput oriented ...
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Pert Chart in Java

How to create this kind of graphs in java? I mean, is there some kind of a library or a software to do it? It's something I need as a display for Pert method's code that I am going to write. P.s: I ...
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1answer
15 views

Document Viewer for .doc, docx, .xlx, .xlsx and .ppt files

I need a document viewer for .doc, .docx, .ppt, .xlx, and .xlsx file formats, that allow me to view above files in browser. I took 4-5 days googling to find a free or less costly solution providing me ...
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1answer
24 views

Backward-compatible alternative to Kotlin and Scala?

I'm seeking a programming language (i.e.: compiler and IDE software package) that introduces modern convenience concepts like implicit conversions, assignment/call fungibility, mix-ins, extension ...
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1answer
28 views

Java Open Source for work flow management

I'm planning to develop and application and needs a work flow engine as well for couple of process, approval, rejection etc., Please kindly recommend a good java open source work flow management tool ...
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9 views

Free alternative to EHCACHE with persistence to disk?

I am looking for a free (open-source) alternative to ehcache Disk Persistence. Please note that while ehcache itself is free, the disk persistence features are not. Specifically, from this set of ...
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15 views

Library that converts CSS layout to Table layout for e-mail purposes

I'm searching for a library that can take HTML and css styles that uses modern block layout attributes, such as float etc., and converts that to a table structure. Unfortunately in this day and age, ...
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1answer
22 views

Java Depenency Injection Framework Selection

I am looking for help to decide which dependency injection framework best suits our needs and whether or not this is the way to go in the first place. Setup: I am working with a codebase of ~300k ...
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writting codes for plateform independent software [closed]

is there any programming language,by which platform independent software product produced? If there is,what are the IDEs to access that language?
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1answer
12 views

Java PNG creation library usable both stand-alone and on Android?

I'm looking for a Java library that can output PNG files. In my image-creation routine, I know the image size and the color of each pixel. I want my image-creation routine to be usable in two ways: ...
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13 views

Java matching (DFA?) library

I'm almost sure that the question is not new and there might be an existing solution which solves it. Unfortunately, was unable to google it. Checking if someone here can reference it :) Suppose we ...
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9 views

Lib or tool to record and replay http invocations during tests

Can anyone advice me on a strategy/lib/tool to quickly create functional tests for a server that exposes an HTTP api against a thick client (think desktop app)? My idea is to record http invocations ...
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1answer
23 views

Java web Framework recommendation

I develop server-sided products using websites as interfaces. The underlying logic is usually complex, however, the user interfaces are VERY simple (most of them are simple CRUD operations on mysql ...
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0answers
18 views

Java data serialization format alternative to JSON

I need recommendations for data serialization format alternative to JSON It need to be used in Java micro services environment for server to server communications I found an article suggesting ...
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0answers
13 views

Secure paidment method Primefaces

I´m interested in adding a payment method to my Primefacess app. Is there any paypal or any secure library for credit card payment that I can add? I´m specially interested in the credit card payment.
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0answers
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Tool to easily manage multiple Tomcat instances and their ports

So far I have been using Eclipse with its tomcat server integration. It creates multiple directories(each for every application group deployed). Switched back to Intellij Community which does not ...
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21 views

Tools to create an .exe installer for a Java (JAR) application

I have a Java application (it is composed of a main .JAR plus JAR libraries and miscellaneous other files, but I can turn it into a Uber JAR if necessary) and I'm looking for a tool or tools which ...
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Is there a Django/RoR/Grails-like application generator for the Java+Spring+Hibernate stack?

I've seen demos of application generators, which can take a set of object definitions and produce a basic database and management UI. Django (for Python), Ruby on Rails, and Grails (Groovy), all can ...
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1answer
36 views

Best software / tool to downgrades Git branches?

Good evening, Please excuse me if this is not the correct place to ask this question. I will gladly post it elsewhere would you take the time to show me where. I am starting a new pet project where ...
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I am searching a JavaHelp still supported alternative

I developed a Java Swing application, and used JavaHelp to generate the help for this one. But JavaHelp is too old and not supported now, I didn't find any alternative (I saw OracleHelp for Java but ...
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21 views

Solve small quadratic programming problem with inequality constraints in Java or C/C++

I need to solve a quadratic programming problem. The problem is small, 4 variables and 8 constraints, and has inequality constraints but not equality constraints. I am looking for a library in Java or ...
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2answers
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Choosing the framework to an IDE type of web gui

I'm pretty newbie (or maybe oldie) with GUI development. Now when digging in, there seems to be massive amount of different frameworks to use. Currently I have built a java application which scrapes ...
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Library for numerical double integration in Java

Does there exist a Java library for evaluation of double integrals numerically using e.g. the multivariate Simpson's Rule? See Horwitz 2001, Journal of Computational and Applied Mathematics 134 1–11. ...
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1answer
15 views

Tools to find anonymous classes in Java source code

I want to find anonymous classes in some code to see if they should be changed to lambdas for readability's sake. Is there any tool which does this?
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27 views

Java library for JEE in-container unit testing

I'm looking for software which will serve as useful toolkit for in-container(i.e. JEE container) testing(nice description of what is in-container testing can be find here) My requirements are: ...
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13 views

How do I create an ITI-41 transaction receiver in Java?

Is there a standard way to implement an ITI-41 receiver in Java? Is there maybe a library I can utilize? Is there just some simple example code maybe? The specification for ITI-41 is quite large ...
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1answer
21 views

Libs & Technology to help me build a Mareys Chart

I am in need of a component to show and interact with a Marey's Chart. For those who are not familiar, a Merey's Chart is a chart to visualize train movements in a Time x Location axis. Much like ...
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1answer
199 views

Sparse matrix library for Java

I am looking for a sparse matrix library in Java that can do multiplications on sparse integer matrices, where the matrices represent the adjacency relations of a graph. The requirement is roughly the ...
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0answers
9 views

Open Source UI to build search application with type-ahead search

Do we have any open source java application with default menus such as file, print and other options and would like to built a search application with elastic search with indexing Any suggestions are ...
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0answers
16 views

Free Text-to-Speech library with viseme event for Java desktop application

I'm looking for free Text-to-Speech library, which sounds naturally and supports viseme event. To use it for Java desktop application I found http://mary.dfki.de/ but it does not supports viseme ...
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0answers
22 views

Java library to integrate DIAL protocol into an Android app

Which library to use to integrate DIAL protocol into an Android app? The app is built in Java. The library should be open source. The library should be able to launch apps in Android TV, Fire TV, Roku,...
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0answers
41 views

Java Spring based open source CRM

I am looking for well designed open source Java/Spring framework based CRM. The CRM should not be just a toy project on GitHub but even that I could not find. It should support around a dozen ...
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1answer
38 views

Fast, Scalable and Efficient Web development framework for beginners

I have knowledge of Core Java and I'm learning Python too. What is the best web development framework for beginners?. I'm trying to develop a web portal for displaying some analytics and wanted to ...
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3answers
22 views

Java: basis rest-service standalone

I want to implement a REST service in Java. I should not be a servlet (no need of jetty, jersey, glassfish, tomcat). I would love a simple jar-file that includes a standalone http-server I can call ...
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1answer
17 views

Performance Testing in Java (API calls)

I want to test my API. My API would include images that would be served on a particular device. I wanted to make automated calls in the range of 100s. I am using Eclipse IDE and using the ...
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0answers
10 views

Augmented Reality app in Android / headsets

I'm trying to jump into AR and build a basic prototype. For instance, if I see a laptop, I show a diagram visualizing some information such as it's CPU usage (which I get in real-time). Or when seeing ...
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0answers
16 views

Production Grade Image Scaling in Java

I am working on production-grade Image Scaling Libraries based on Java. I have come across some libraries. Java Image IO jMagick (could not use it on windows machine due to running a 32-bit binary on ...
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1answer
48 views

Cross-platform Java/Kotlin logging library

Meta-note: I can't add the Kotlin tag since I have less than 300 rep on this site, and it doesn't exist yet I'm working on a cross-platform project written in Java and Kotlin, and I need some decent ...
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0answers
19 views

Dynamic calendar for Android

I am looking for a calendar view (Or API rather) that will allow me to create a custom calendar view, with events and everything. One that is completely unrelated to the user's phone calendar (any ...
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0answers
74 views

Arabic OCR Java library, from PDF

Is there any pdf text extractor api that extract arabic text from pdf. I am using itextpdf api it works fine in extract English but it doesn't extract arabic text.
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Open source Java FTP library with parallel dowload support

I am looking for a FTP library with parallel downloads support (for a single file) The context is, that I am working with FTP transfer over a Wide Area Network (with latency of 250ms). Due to TCP ...
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0answers
29 views

XML difference using Maven

I have a requirement to find out the differences between XML files of the current release and previous release, and report the differences in HTML format. These XML files are packaged in a jar during ...
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1answer
23 views

Headline Capitalization

Background Developers write JIRA tickets; developers do not style the ticket items consistently. We'd like to present the ticket summaries to clients, but with a consistent format. Problem We're ...
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1answer
36 views

Framework for documentation: java rest api

I have a project in java, with APIs in REST. I wanted to create a wiki with documentation (markdown) on the APIs. First phase only the specifications, then also include a way to test the API (API ...
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0answers
41 views

JavaScript engine for Java 8 supporting ECMAScript 6

I am looking for a Java 8 JS engine, that supports ES6 or newer. I want to embed the scripting engine into a Java application, as a public API, so I have to have the functionality to put() a value to ...
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1answer
23 views

Software for genomics/bioinformatics server development - Open Source

I'm in a quandry - I have a Masters project (bioinformatics) next year and I have to choose a framework for developing a website/processing centre/general allround functionality. Open Source is an ...
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0answers
21 views

Java Library for XML to JSON to XML Impedance Mismatch

I need a lossless conversion of XML to JSON and back again using Java. I have used a Javascript library called jsonxml, which does it properly, but nothing in Java. The best I seem to have found it ...
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0answers
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What to use for converting Buffered Images to a Video Stream in Java?

Is there library to convert Buffered Images to a video stream (.mp4 for instance)? Does anybody of you know if this works with ffmpeg/HumbleVideo and have a good reference on this?