Questions tagged [java]

libraries for Java and Java development tools

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8
votes
1answer
660 views

Javascript library for flowcharting

I have a requirement for modelling flowchart like (workflows) diagrams in the Web application. Request suggestions for an open-source javascript library for the same. Features I am looking include ...
1
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1answer
22 views

Re-Starting Coding - Need a platform recommendation

I am a semi-retired real-time developer (1979 - 2012) conversant with old languages such as C/C++. I am re-entering the market to develop an application dealing with the display of simple graphic ...
1
vote
1answer
24 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 ...
2
votes
1answer
32 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 ...
-1
votes
0answers
3 views

Java EE packages structure

I'm learning java EE. I want to create a web app using javadb database. I created a maven project in Netbeans with 3 modules: ear module, ejb module and web module. Could anyone tell me how to ...
0
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0answers
3 views

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 ...
0
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0answers
4 views

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? ...
1
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0answers
6 views

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 ...
0
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0answers
2 views

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 ...
0
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0answers
5 views

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 ...
0
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0answers
8 views

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 ...
1
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0answers
8 views

how can i do isnt local database in mysql [closed]

I can only create a local database. How to make a non-local database in mysql I tried to search the Internet, I did not find anything like it
0
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0answers
5 views

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 ...
0
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0answers
4 views

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 ...
0
votes
0answers
5 views

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?
1
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1answer
5 views

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.
0
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0answers
11 views

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) ...
0
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0answers
5 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 ...
0
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0answers
17 views

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 ...
1
vote
1answer
22 views

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 ...
-1
votes
0answers
6 views

“Update dependencies” option not showing in Eclipse project

I have a Java-Maven project. For some reason, I'm not seeing the "Update Dependencies" option when I right click on the project>Maven>Update Project. The "Update Dependencies" option is greyed out. ...
-1
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0answers
4 views

java Code/application generation tools

Please can you tell me if you have any idea about java code or application generation tools. I heard that those tools are more and more used by companies and they require just UML modeling as input ...
1
vote
1answer
350 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 ...
0
votes
0answers
7 views

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 ...
0
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0answers
4 views

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 ...
0
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0answers
8 views

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 ...
-1
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0answers
4 views

Online inventory menagent system with cloud

Please recommend the best framework work with JPA to develop the online inventory menagent system with cloud. Regards, Iram Kahkashan.
1
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0answers
10 views

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 ...
0
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0answers
7 views

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?
0
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0answers
6 views

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 ...
0
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0answers
9 views

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 ...
0
votes
2answers
63 views

Java library to create PDF file

I am looking for a free library to create and export PDF files. I will receive StringBuilder like that: value;timestamp 8627;1514674800000; 8627;1514761200000; and I need to generate and export to ...
12
votes
7answers
14k views

Free or nearly free PDF library for Java

The title1 says it (nearly) all. To be more specific, I require PDF generation with basic formatting (tables and images) usability in closed source commercial project being free (as in beer) or ...
0
votes
0answers
4 views

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/...
0
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0answers
3 views

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 ...
0
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0answers
5 views

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?
0
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0answers
7 views

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 ...
2
votes
1answer
18 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 ...
0
votes
0answers
3 views

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 ...
1
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0answers
9 views

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?
2
votes
1answer
777 views

Open-Source MQTT Broker in Java

I need a MQTT broker which has HTML5 websocket support and customizable (db-related) authentication and authorization support. I've found Moquette and Apache ActiveMQ. Moquette has only one ...
0
votes
0answers
9 views

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 ...
0
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0answers
9 views

Automation reporting tool for parallel test runs

I am looking for a reporting tool that I can use to provide an outline for parallel tests that I am running using maven, junit, cucumber. Preferably if this could be as simple as a dependency/plugin ...
2
votes
1answer
62 views

Parser for MIB files in Java

I'm working on an SNMP Manager in Java. I have multiple MIB files that I want to parse as objects, so I can use their data within my code. In order to do that, I need a good MIB file parser that can ...
0
votes
1answer
20 views

Need a bot that should be able to create, write read files and make and execute calls over the network

I need a tool/language/course/series which will help me develop a chat bot which will be able to perform various tasks such as read write create files. The bot should be able to make various rest ...
0
votes
0answers
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 ...
0
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0answers
3 views

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 ...
-2
votes
1answer
17 views

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 ...
0
votes
0answers
7 views

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 ...
0
votes
0answers
7 views

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?