Questions tagged [java]

Java development tools and libraries for Java.

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A tool or system for automate-code version and comment synchronization management

Our company's underlying code base is constantly being updated and improved, and annotations are constantly being updated. Now there is a problem that we have a lot of versions of the code and ...
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Programm/Tool to build jsp pages

someone of you know some programm to build jsp pages? I mean something similar to SceneBuilder for JavaFX, in order to design the jsp page in a graphic way and then get the code from that design.
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what can i use as a free software technology to connect my chatbot with messenger

I am developing a chatbot using spring boot (I am following this tutorial:https://github.com/rampatra/jbot) and I try to link with messenger without hosting on a server (I'm looking for a free ...
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read serial port in java

. > i am looking for a library to read a serial signal with 1mhz baudrate in java that no have specific protocol so i decided read this signal bit to bit.how i do that and what library is ...
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Extract fields of a JSON using a schema subset

I'm working on a JVM application which consumes a JSON message with 100 fields and passes a subset of the fields (say 10) of the JSON message to a Kafka topic. I'm looking for recommendations for any ...
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automatic creation of the program schema

Are there any ways to automatically create a program schema (specifically interested in Java/IDEA)? I mean schema wich shows what classes and methods exist, what from where is called, what parameters ...
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How to create timer countdown from jsp using javascript and java

i would like to create countdown using javascript and countdown the variables that are java. minutes = <%=(userTimeBlocked/60)%>
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1answer
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Recommended software to create a simple Android app?

I just want to create a simple Android word game app similar to something like 4 Pics 1 Word. I have basic knowledge of Python, Java and Scratch and so I have already researched about Kivy and Pygame ...
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46 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 ...
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Migrate AngularJS+SpringREST app. to Java8

We have 20application based on Angular(1)JS, Spring3.x, SpringBoot and OracleForms. Currently they are hosted on-premise datacentre with Java7 and Oracle11G. Infra recommendation is to put on ...
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Geotools or Gdal?

I am fetching large GeoTIFF images (450 MB) from AWS S3 bucket in Java REST API. Can anyone suggest me which one is a good Java library to crop those images on the basis of the co-ordinates provided? ...
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GUI Framework for research

I'm working with a Java Simulator and JupyterLab (Python scripts) and currently, I'm launching the experiments directly from Eclipse or the command line, and after I generate plots, tables, etc. In ...
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Migrating from IBM ODM to Drools

We have some large scale rules projects running on IBM ODM. For some reason we want to migrate our rules to Apache Drools. Since we have large projects with some 5000 rules I am looking for a tool ...
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Best Automation framework to use for c# code

I have been working in c# code. Currently I am using nunit framework to write automation tests and Octopus deploy for running them. I would like to know if I can use any other better framework like ...
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Program that makes extensive use of Java features?

I'm looking for a relatively simple program that uses/tests as many Java features as possible (if that's not a contradiction in terms!). By that I mean uses the features of the JVM itself rather than ...
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Best Payment Gateway in Moldova to Implement in Java Application

I am developing a spring boot application , I need to configure a payment gateway in the application,but the problem is that my client is from Moldova and their in Moldova not many people use PayPal ...
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Elasticsearch Remove duplicate shop data & user data

There are store data in my index. When a user searches for a product based on a keyword, a store displays a lot of products. I want to realize that only one product is displayed in one store. I am ...
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Automatic reconnection to Elasticsearch after connection lost from Java High Level REST Client

I'm trying to fix the problem of auto-reconnecting to Elasticsearch after my application (Springboot) temporarily lost the connection. I am using the Java High Level REST Client. How can i tune it?
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Credit Card encryption techniques available and recommended libraries in java

Looking for some great Java libraries to encrypt the credit card information. Also the available encryption techniques available.
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Power Cable Management

What software should I program this in? I have no idea where to go. Java, C++, html ???? This is just a side project to help wire management... I have an IT closet with (25) plugs coming from (4) ...
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7 views

Peer to Peer library wirh node discovery and routing capabilities for android

I am looking for a peer to peer library that will work in a LAN. I would like to use the application for communication within a LAN(voip and messages). I have been reading about kademlia and ...
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How to connect camera with my application so I can record videos using Java?

I can't find an example on how to connect Sony's camera with my application. I want my application to be able to start recording, stop and assing a name to video after recording. I have connected ...
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Recommendations for a million http requests

I have more than one million http requests to do, and I want to use a high performance programing language to do it. I coded it using PHP, but the result was too bad. I should make cUrl requests with ...
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363 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 ...
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Java Framework for in-memory task graph execution

There are some (let's say 20) concrete implementations of the FunctionalInterface Function< Input, Output> addressing isolated aspects of my business logic. A combination of some of these concrete ...
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Is there a tool to convert proto Builder to java Constructor?

question: I want to convert proto deserialized Builder into java Constructor, which needs to deal with the wrappers class. When it encounters no assignment, it changes to NULL. eg: proto ...
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Local in-memory off heap JVM key-value store

I am looking for a JVM library implementing ConcurrentHashMap to store large map in local memory. Expected to have 20,000,000 items in this map with overall size of 2-3 Gb. No need to distribute data ...
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How to bundle a Maven project to a .pkg installer?

I have a JavaFX 12 project which I would like to bundle into a .pkg installer. Is there an easy way to do this, or is there any third party software that can help me with this?
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Is there any API to generate a JSON schema programmatically in Java?

More info: I am converting XML data using the eclipse org.eclipse.uml2 (and emf) packages to generate a JSON schema, and looking for a similar Java API that provides JSON schema semantics (like ...
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Eclipse: Auto-generate hashcode() and equals() on save

I would like the java hashcode() and equals() functions to be added/updated when the class is saved, or even better; when fields are added/removed/changed. It seems Lombok can do this but I am ...
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Recomended Dynamic Time Warping Library for Java, (Wav file audio comparison)

I am looking for a Dynamic Time Warping Library in Java to be used with eclispe. This will be used to compare 2 wav files by extracting their MFCC (Mel-frequency cepstrum). I will need to find the ...
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Converting raw IMU data to roll-pitch-yaw

I have 6 IMUs sending me gyro (x, y ,z) and accelerometer (x, y ,z) data in an SD card in .csv format. What I'm supposed to do is convert this raw data into quaternion or Euler's angle using Kalman/...
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User-specific calendar that can be updated

I'm trying to create an app whereby a user will have a calendar tailored to them containing all their important dates. There needs to be a way for a non tech-savvy person to update a users calendar ...
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Android app for writing codes

I have been searching for an app I can use for writing codes on the Android platform but somehow I have not been able to achieve that, is there an application that can solve my problem?
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Help with building chatbot

I'm looking to build a chatbot that can interact with JavaScript elements on the page it's hosted on. More specifically, I'm wanting a list on the HTML page to be crossed off one by one when the ...
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1answer
23 views

Non-Node/NPM Modern Front-End Web Framework

Looking for a modern front-end web framework that is either JS- or Java/JVM-based (like GWT which does cross-compiling, etc.) but that has no Node/NPM dependencies. Meaning I should be able to develop ...
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Is there a java weakhashmap which allows GC when the value is otherwise unreferenced

I have found a class called WeakHashMap in Scala which looks to simply wrap the corresponding Java class. This weak hash table allows entries to be removed from he table (and eventually GCed) when the ...
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Is there a cross language logger

I want to able to run a single logger and post to it from different languages. Is there a single logger out there that will work with java python and r?
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Open source reporting library for Java

I'm looking for a good reporting tool for Java which is easy to implement to my Java desktop program for generating reports. It may or may not be like Crystal Reports but hopefully it is. Looking for ...
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1answer
53 views

K-means library for android

I'm looking for android library to cluster location points in groups. I want to do it locally on android without internet and group in a way where distance between mean and every point in cluster aren'...
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17 views

Suggestions for a tool to measure TCP performance of a server

I have several servers that host a java application. Now I have a requirement to measure the TCP connection performance of these servers. The perf tool have functionalities for TCP profiling but that ...
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service management technologies

I'm looking for some platform that will manage a clustering of java application, start and stop them according to the load and manage the configuration - like Kubernetes.. open source / free licensed ...
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How to limit login access and create ban after 4 attempts to web application based on user's IP address? [closed]

i have created the js file for this purpose but i cannot find a way to limit the access after 3 failed attempts based on user's ip address. can someone please suggest me a way to do that? i do not ...
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Account Management Tool in Android Studio

How to manage the account of each user in an Android app, in equivalent, their main page is a page that contains their own informations- not the things that shared common property like simply ...
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Pdf to pure (serializable) jpanel

For a program of mine I need to convert PDF documents to serializable JPanels, any libary's that can do the job?
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Statically Access C++ functions from java

I'm developing a tool in order to test both, Java native code and C++ implementation before actual run. In order to inspect java's *.class I've used bcel Library and so discover all classes containing ...
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27 views

Spring Boot: Is there a Symfony like request debug view / profiler?

I'm asking myself - coming from a PHP/Symfony background and currently diving into Spring - if there is something similar to Symfony's request profiler in the area of Java-based Spring framework. In ...
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7 views

Currency exhange api with some features

I need a currency API with following possibilities: latest currency exchange change base currency currency exchange (fe: 1 EUR -> 20 USD) get historical data(I'll need that to compare values of ...
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Entity auditing/versioning library for Java

I have to add auditing to my Spring Boot application. I looked at Javers and Envers, but both seem to store the entire snapshot instead of just the changes made. I am concerned that saving snapshots ...
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50 views

Library to replicate AS/400 menus in Java

I'm looking for a way to make a program with the style of AS/400 menus. I've looked at text-based UI libraries (lanterna) but they don't seem to be able to do what I'm looking for. Ideally, I would ...

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