Questions tagged [java]
Software regarding Java development tools and libraries for the Java programming language.
694 questions
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Java Connection Pool implementation
I am looking into Windows Shares and the smbj library. To speed up multiple requests to the same share I am thinking of connection pooling.
Now all the connection pools I can find out there seem to ...
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Looking for unused/underused Java code types
We have a big Java project with thousands of source files.
Recently, I encountered a type that is not used anywhere.
It got me wondering how many of them we got.
Is there some tool to detect unused ...
- 171
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What Java library is recommended for making android apps with basic signal interaction?
I am trying to create an app that networks by sending media through Signal's pre-existing network.
It must:
Be a Java library
Work alongside a preinstalled signal app
Have good documentation or ...
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imported collection elements update / create / delete when source has no id of target entities
I am looking for efficient collection update stored in database, with the following assumptions:
source has no id of updated / created / deleted records
one and only identification is some kind of ...
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2
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Container for Swing properties
I'm not comfortable typing Swing property strings manually as it's error-prone (e.g. I can type "visibel" instead of "visible"). However, I haven't found any container for those ...
- 171
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java/kotlin library for creating pdf document with different User Details
I have an application where users can do a test and when they succeed I want them to have a certificate with their name and date of accomplishment.
What is the best way to do this and what libraries ...
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Software to find dead code during runtime in Java?
I'm looking for a tool that can find methods that never get invoked during runtime in a Java spring boot application. The only thing I could find is https://github.com/crispab/codekvast which seems to ...
- 131
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How to pack a file with some metainformation to 1-file-package
I have to put a file with some information (filename, content, time, sender, ...) in a one-file package. That package will processed elsewhere.
The content of the original file can be binary as well ...
- 111
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SIP SDK for Java
I want to implement a small callbot with Java.
I have the same callbot on C++ using pjsip library.
Basically I have a Asterisk server that transfers the call for my callbot, and the user can use DTMF ...
- 101
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First Component of type
What library can I use to find a first AWT component of a certain type? It's likely such a method has been written long ago. I need it for tests of my Swing GUI
If I can specify whether the search ...
- 171
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Type-safe table API in Java
We have a big Java project on Swing
I'm sick and tired of Swing's magic constants and Objects that cause runtime errors. For one thing, column is not a parameterized type so can accept and return ...
- 171
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Looking for a simple, non-cloud object storage compatible with Java
Note: If there is a better venue to ask this question, instead of just closing my question, please suggest a better place for it.
I have been trying to find a simple, self-hosted (i.e., non-cloud ...
- 111
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CORBA implementation to replace the one removed from Java 11
Java 11 removed support for Common Object Request Broker Architecture (CORBA) that was bundled in previous versions.
Oracle offered the technology for a third-party to adopt.
👉🏽 Has any alternative ...
- 3,148
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Build specific website (kind of a portfolio) - which tools should I use?
Sorry if my English is not really good.
I want to build a Web App (Physiotherapist portfolio Web App). The Web App, it is kind-off a Portfolio but has a lot of extra functionalities not associated to ...
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Mathematical expression parser for Java
Are there Java libraries that can evaluate string expressions like "5+4*3" into a decimal number (or an integer, if there's no decimal part)? I could parse it myself, but then I'd also have ...
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Are there any "Devtools" for Swing?
Are there any "Devtools" for Swing (or anything, really, that can ease the process of mapping GUI elements to Java objects in code)?
As of now, it's quite time-consuming to locate a Swing ...
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Java Library to extract superimposed timestamp from image files
Looking for a recommendation for a Java library that can interpret the timestamp superimposed on an image file.
Here’s an example:
The desired result would be that the library returns March 22, 2002 (...
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Java library to play multiple WAV files simultaneously, ensuring synchronicity
I am trying to develop a Java application that is able to load and play multiple audio files with the same length, and play them simultaneously. Basically parts of a song like bass, guitar, etc..
That ...
- 111
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Making a parser in Java
I am making a parser for Turtle and I am done with it, but the problem is that it is awful. I'm not allowed to use global variables or parameters which is why it is more complicated that it needed to ...
- 101
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77
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Is there a library for converting nano seconds to human-readable strings?
Suppose I have a Bucket4J time limiter and want to return a clear, helpful message in case the rate is exceeded. This is not an example of how you return a good response message
package com.example....
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Java alternative for Kivy (cross-platform material design GUI framework)
Is there a Kivy alternative in Java?
In the past, I've used Kivy to design cross-platform GUI apps in python. I like Kivy because it's:
Cross-platform. One app runs on Linux, Windows, MacOS, Android, ...
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Any languages with serializable / mobile runtime?
I am developing a system that executes arbitrary jobs. A job is a piece of code in some programming language (e.g. Javascript), it can run sub-jobs and wait for their completion as it is shown in the ...
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What are examples of utilities for checking schemes and paths in Java?
I don't want to copy-paste a code like this when checking a scheme for validity
Pattern.matches("[a-z]+://", scheme)
or code like this to check a path (don't nitpick, I realize it's ...
- 171
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Executing Java code at runtime in Android Application
I need a tool to inject a string of code in my already existing code at runtime.
This string is obtained by a http request during the execution and uses some variables that are statically declared in ...
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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 ...
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42
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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 ...
- 111
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503
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JavaScript or Java. How to extract text and text coordinates from a PDF file?
I am looking for a pdfminer analog for js or java. i need to parse a pdf file into text and get the coordinates of each sentence (x, y, width, height). it would also be nice if it could work not only ...
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Generating Random Java Code
I am currently working on a project that involves bytecode transformations, and I'm looking to create an integration test to ensure the robustness of "My Tool". The simplified pipeline for &...
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29
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Image Processing library/SDK for Android?
Is there any free library or SDK on Android to perform image processing and basic computer vision techniques, similar to OpenCV? Something with active development and not obsolete.
I'm looking for ...
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Client HTTP Java
I am searching for an HTTP java client optimized for downloading and uploading files. We do a lot of download and upload of files (more 10 Go by days / 10000 files by day).
Is there some client which ...
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268
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Java based key-value store (embedded database) with incremental persistence and transactions
Any recommendations for a Java based key-value store embedded database? Requirements are:
It should support transactions
It should support saving and loading from incremental changes. What I mean by ...
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9
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Tool for resolving variables/constants values without being executing the java code
I am looking for tool/library to help me parse the actual values of objects/variables/constants of non-compiled Java code.
String sql = excludeNotReadyForMatching ? SELECT_RELATED_INVOICE_IDS_BY_POID ...
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111
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JavaFX or ElectronJs for Desktop application using Bluetooth
I need to develop a desktop app that communicates with a smartphone to send data through Bluetooth (from the smartphone to the desktop and vice versa).
I'm fluent in Java and learning JavaScript ...
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How to extract documentation from SpringShell @ShellMethod annotations
I am developing a shell from SpringShell and use the @ShellMethod to annotate the methods that are invoquable from the Shell. The annotation includes a brief description of the command/method.
@...
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Spring geospatial library
I am developing a project in spring. Is there a library for working with geospatial data (with geometry and geography), if I need to check the intersections of geometries, the occurrence of one ...
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Alternatives to using Apps Script because of the 30 mins max run time
Hi I'm doing a task which takes around 10 hours.
Task: Call an API 100,000 times for 100,000 inputs and store results in a google spreadsheet.
Since apps script has a time limit of 30 mins, I have to ...
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Is there any open source pdf editor tools for pdf editing(should contatins all the editing tools like marker,eraser,text ..etc)using java spring boot?
I am trying to implement a pdf editing tool on my project using java spring boot.
It should be open source and it should contain markers, eraser etc.
It should display the pdf using urls. -then we ...
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Using Java, what other libraries are avalible for easily converting CSV files to DBF (dBase/xBase)?
I am currently writing an android app that interfaces with database files and was considering a way to export data neatly without errors. Currently every library I can find has one issue or another ...
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Is there a existing library for search function (e. g. include/exclude, and/or)?
I have a JavaFX application with a TableView. The user can filter the displayed rows with a search term they enter in a TextField.
Currently I iterate over all cells and use simply String.contains().
...
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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 ...
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Download both Oracle Java and open-source JDK on same computer?
Is it ok to download both versions of Java on one computer - Oracle Java and open-source Java?
Will the computer have problems? Will the editor - Eclipse or IntelliJ - have problems?
Do I need a tool ...
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is there a open source backward static slicing tool in Java that is actually maintained and easy to use?
A backward slice identifies those statements that affect the value of the attribute.
For example:
x = 1;
y = 2;
z = y-2;
r = x;
z = x+y; /* the slice point is the end of the program */.
Here, ...
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Tomcat Configuration Editor or Tool
The tomcat configuration is been manually edited always prone to human errors always. This causes delays during deployment or production. This is a big problem.
Is there is any tool available to ...
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Best library java to write dxf file
I am looking for the best library to write a dxf file in java
Before trying to convert png image to dxf but I can't, so now I want to write the image directly
My need is a library that can draw lines ...
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What database should I use for a location tracking android application?
So I want to develop an online mobile application using android studio and java. A client mobile application that will send its location to the admin mobile application, so it will be using GPS. what ...
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Need a label generator utility
I need a utility that can be integrated with Java and can generate label (attached) by passing the values dynamically. The utility can be paid.
I am looking for multiple labels on a sheet, such as A4 ...
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Caching library for Android
I'm looking for a caching library for Android.
It must:
be memory-based
support serialization/deserialization so it can be persisted on application shutdown
support time-based eviction
support ...
- 181
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Free code quality / code coverage plugin or service for GitHub
I am looking for a plugin or service that I can connect to the GitHub repository so that:
checked the quality of the code,
generate code coverage reports in the project
The project is Open Source in ...
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How to host Java application package similar to Python's pypi.org?
I have a Java application which I would like to host on some sort of free hosting website. Later, users can install that application via a command-line tool and use it easily.
While searching, I found ...
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Data mapping tools like dataweave
I’m planning to build a data mapper (Java object <-> XML <-> JSON, etc) as robust as DataWeave and more advanced than AtlasMap to support my integration workflow. Which basically can parse ...
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