Java
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Java – pass custom environment variables to Maven
I'm looking for a way to pass environment variables to cargo containers Something like this: <plugin> <grou…… -
Java – simple file upload cannot be implemented in Jersey – “use post to annotate resources. Classes are not considered valid resource methods. Unavailable”
You can't use Jersey to upload simple files Missing dependency error raised during application boot: The following err…… -
Multithreading – can I generate a thread from a servlet?
Before turning to my main question, I'd like to ask a basic question Let's say I'm running a simple java program that …… -
Java – JFrame: get the actual content size
I've created a JFrame, and trying to get its size will produce incorrect results compared to what I expected I've made…… -
Java – how to write a probabilistic algorithm that can be easily maintained?
Suppose I want to create a game At the beginning of the game, the player will choose a monster It's easy to choose mon…… -
How do I organize my java GUI?
I'm creating a game in Java for fun, and I'm trying to decide how to organize my classes for the GUI So far, all class…… -
Variable structure in vector
I'm trying to create a vector to track enemies in games that will have a bunch of variable structures I have a world s…… -
Java – when does the main thread die?
The problem is to use threads to generate random numbers between 1 and 99 But the problem here is that I don't know wh…… -
The java web framework is similar to the ruby on rails paradigm
In your opinion, what is the Java Web Framework closest to or similar to the ruby on rails paradigm (such as conventio…… -
Java EE – which CDI scope should I use for Dao and service classes
I'm trying to build applications using JPA, CDI (open web beans delta spike JPA module), and JSF I use CDI deployed on…… -
Java – attempt to refresh the ‘expired’ keystore
I'm trying to re sign some jars using the ant task 'signjar', but it tells me that "the signer's certificate has expir…… -
Java – the correct way to calculate associated objects using jpql
What is the correct way to write this JPA query? I'm just guessing because I can't solve it or find it in my JPA book …… -
Cubic B-spline curve in Java
I need to use cubic B - spline, but I can't find its code anywhere The only curves available in the Java API are quadc…… -
Java – how to process servlet requests during long shutdown periods
We need to implement an elegant shutdown mechanism in servlet applications Editor: we want to simplify as much as poss…… -
Does clang / libclang have a Java binding?
I want to use clang's code analysis function in the plug-in of Java based ide Since plug-ins must be written in Java, …… -
Java – what does the “unbound” library or classpath container in eclipse mean?
Although I recently imported a new project into eclipse, when I tried to add groovy_ When the support library, it will…… -
Java – battleship game – ship overlap
I am using ACM library to write a simple warship game in Java My code is: @ h_ 502_ 4@ private void putSmallShips() { …… -
How to write ArrayList to CSV file
I have an ArrayList < < metadata >, and I want to know if there is a Java API for processing CSV files with a…… -
java. sql. Sqlexception: IO exception: how to recover the damaged pipeline without restarting?
In my application, I use to connect to Oracle. When the connection is lost and I try to reconnect, I receive an except…… -
Java – access all spring beans of a given type
I have a spring application (spring batch is not a web application) In the test class, I want to get access to all bea…… -
Java – dynamodbmapper saves items only when unique
I try to keep the items in the table unique according to the combination of two different columns I have an instanceid…… -
Java – spring MVC: there are multiple @ modelattributes in the form processing operation
context I have a simple association between two entities - category and email (ntom) I'm trying to create a web interf…… -
Java: socket or RMI?
I need to divide our applications into lightweight GUI applications and business logic applications This is not a clie…… -
java – Desktop. Open() failed to silence on some jres
I'm trying to open a local HTML file on windows using the desktop class However, it only applies to some specific jres…… -
Java – jax-rs, mapping to JSON without overhead?
I am using jax-rs to create restful web services in Java I get a lot of overhead in the generated JSON Data class: @Xm…… -
Java – why doesn’t Postgres replication stream work when used in a separate function?
I'm working on the Postgres replication stream API Encountered unusual behavior while working hard When I use the copy…… -
Java – how do I get components at the mouse click position when using TableCell editor?
I use a custom tablecellrenderer and multiple jformattedtextfields in table cells I use the same components as TableCe…… -
Cq5 – how to get key / value from Java use class HashMap
I have a basic Java usage class object that extends wcmuse and a simple HashMap method - in obvious code - I have some…… -
Java – Apache httpclient records the password in clear text when opening debug logging
When debug logging is enabled, Apache httpclient appears to record passwords in clear text Is there any way to disable…… -
Java – how to sign jars that never expire?
I signed my jar file with jarsigner But I received a warning: Warning: This jar contains entries whose signer certific…… -
Java – accessor method visible under windows and Linux, but not OS X
Try 1.5 2 jar file (for example, in java.net http://java3d.java.net/binary-builds.html To build javax vecmath. Try cal…… -
What is the correct way to reference Java members in text?
When answering questions, I found that I often mentioned method names and online documents I'm confused about how to r……