Java
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Java – why was the last thread not interrupted?
I'm trying to demonstrate a "anytime algorithm" - an algorithm that can stop and return its current results at any tim…… -
Java – better Jfilechooser to replace OS X, Linux?
At least under OS X, Jfilechooser will generate a very unfamiliar open dialog box. It does not support selecting it at…… -
Parallel Haskell – GHC gc’ing spark
I have a program that I'm trying to parallelize (completely paste with runnable code here) I have analyzed and found t…… -
Java executorservice invokeall() interrupt
I have a fixed thread pool executorservice with a width of 10 and a 100 callable list, each waiting for 20 seconds and…… -
Java – is this too much refactoring?
I try to refactor the code so that it will use a separate method to do some calculations Just to make it clear What I …… -
Java – how to add elements to the end of an array?
I want to know how to add or append a new element to the end of the array Is there a simple way to add elements at the…… -
Java – Maven resources plugin: 2.6 – unable to create resource output directory
So I just created a Linux instance from EC2, and now I'm trying to install AWS Java SDK on it At the end of the instal…… -
Java – what is the best way to handle invalid CSRF tokens found in requests when a session times out in spring security?
I am using spring MVC / security 3 10. The problem is that whenever the session times out, I get 403 on the login page…… -
Java – how do I get exclusive access to certain session entries?
Due to the remote invocation feature of rest services, they are in a state of constantly becoming competitive conditio…… -
Java – hamcrest matcher compares the double value of JSON
I am using the hamcrest corematcher class as part of the spring test integration test My JSON looks like: {"data":[{"d…… -
Java – use GlassFish Library in proprietary software
I want to use some parts of GlassFish in a proprietary software licensed under CDDL gplv2 Am I allowed to do this? I d…… -
Java – eclipse autocomplete does not apply to lambda and types
I use eclipse oxygen 2 Release(4.7.2) I tried some lambda expressions and encountered the following problems: I write …… -
Is java 9 abandoning the SHA1 certificate or something else?
[update] Oracle has just revised its encryption roadmap（ https://www.java.com/en/jre-jdk-cryptoroadmap.html ）, they …… -
Beginner’s questions about heap and garbage in clojure
I have a question about clojure: (defn getAllPrimes [lim] (defn getPrimes [primes numlist] (if (not-empty numli…… -
Java – why mystring equals(“aString”); Different from “astring” equals(myString);?
I have heard many times that Boolean equals (object o) is used to compare strings. It is best to put the constant on t…… -
Java – the difference between loadclass (string name) and loadclass (string name, Boolean resolve)
What is the difference between loadclass (string name) and loadclass (string name, Boolean resolve)? The only differen…… -
How to check whether the class file version 50.0 (Java 6) has been pre verified?
I used Proguard to "upgrade" some jar files from class file version 49.0 to 50.0 Because pre validation is optional fo…… -
Print arrays in Java
I'm writing a method to print every object it passes By calling object The toString () method works, but not for array…… -
Java – bug about getbounds () and setbounds () on Linux_ Solution with id = 4806603?
On Linux platform, frame:: getbounds and frame:: setbounds cannot work consistently This was in 2003 (!) Report, see h…… -
java – MessageConsumer / MessageProducer vs QueueSender / QueueReceiver
Is messageconsumer / messageproducer equivalent to queuesender / queuereceiver? As far as I know, messageconsumer / me…… -
Java – polymorphism using Jackson to add subtype information at run time
I'm using Jackson to ungroup polymorphic types from JSON I use @ jsontypeinfo, @ jsonsubtypes and @ jsontypename annot…… -
Java – why can’t Tomcat find smtptransport (session, urlname)?
We have a web application that sends mail For some reason, its installation has decided that it cannot find the constr…… -
Java – multiple enumerations and one enum
When I stumbled upon something I didn't understand why, I was looking at the example implementation of publisher (asyn…… -
java – arrayListName. What does sort (null) do?
I have a project. The professor gave us some code There is a line in the code that puzzles me: arrayListName.sort(null…… -
Java – call thread What is the performance cost of isinterrupted()?
From the Java source code, it looks like native code Is the cost roughly equivalent to volatile reads or does it need …… -
Generic Dao in Java
I'm trying to develop a general Dao in Java I tried the following This is public abstract class AbstractDAO<T> …… -
Java – how to configure multipartresolver with different maxuploadsize for ordinary users and administrators?
I can use a 10k (10000 byte) maxuploadsize to define such a multipartresolver: <bean id="multipartResolver" cla…… -
Java scripting language (JSR 223)
I'm designing a framework. I want to attach it to the scripting language API to make it more general and easier to use…… -
Java – is it necessary to close the I / O stream created from the socket IO stream when the socket is closed?
private val in = new BufferedReader(new InputStreamReader(con.getInputStream())) private val in = new BufferedReader(n…… -
Java – abstract classes used in static blocks
I can add the abstract keyword in the static initialization block, but I cannot add abstract methods abstract void dra…… -
A Java man asked: why should I learn Python?
This may be a language troll or failure to perform basic Google search; Please rest assured that this is not the forme…… -
JUnit – integration testing of spring boot based microservices
I have read a lot of guides about using spring boot and restful services, many of which contain information about runn……