包含标签：Java 的文章
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Java – lambda Metafactory variable capture
Use methodhandles How do you capture variables when you manually create Lambdas such as lookup, methodhandles, methodt…… -
Java – unable to load ‘classpath resource [org / springframework / WS / client / core / webservicetemplate. Properties]
I wrote some code where I was using another web service and sending a request to the web service using the web service…… -
Package info. Cannot be modified using java 8 Java comments
I'm facing a problem. I have to modify the package information package-info. java @javax.xml.bind.annotation.XmlSchema…… -
Java – how to parse XML files containing BOMs?
I want to use JDOM to parse XML files from URLs But when trying this: SAXBuilder builder = new SAXBuilder(); builder.b…… -
Java – why doesn’t textview (with ID) automatically save its state?
My understanding is that all standard views with IDS should automatically save their state, and when I tried this exam…… -
Java – duplicate classes when weaving dependencies using maven AspectJ
We are using maven AspectJ plug - in to build our web application It uses "weave dependencies" to add aspects to some …… -
Java – Amazon EMR: run custom jar with input and output from S3
I'm trying to run an EMR cluster with custom jar steps The program takes input from S3 and outputs it to S3 (or at lea…… -
Java – why dir Mkdir() in file No exception handling is required in the case of createnewfile()?
This is a snippet of code File dir = new File("dir"); dir.mkdir(); File file = new File(dir,"file.txt…… -
Java – why is interruptedexception a checked exception?
When dealing with threads in Java, dealing with interruptedexception seems to be a special thorn around me I appreciat…… -
Java – Jersey client response status 204
I am using Jersey service and client When I try to call the service, I receive this error: Exception in thread "main" …… -
Java – best practices for using JFrame constructors?
In my two Java classes and the books we use in them, the GUI using code involves a lot of JFrame constructors The stan…… -
Java: no AWT graphics created?
Are there any libraries that can create drawings without using AWT? thank you! Solution Unless you want to implement y…… -
Java Logging – Wrapper？
I started with a new project and made some considerations about logging I always use patterns, where each class that c…… -
Unit of measure API in Java?
Jsr-275 has been rejected. The measurement of measurement API project for Java project is a set of interfaces, but the…… -
Java – use the builder in mapstruct (using the immutables annotation processor) to map objects to immutable objects
We use immutables framework to generate all DTOs Now we want to map these objects to another using mapstruct However, …… -
Timer error Java lang.IllegalStateException
I tried to display a tag in JRE 8, saying that everything is only 3 seconds, because I can't use datepicker in JRE 7, …… -
Running Java programs on the back end
Hello everyone, I want to run a Java application as a back-end process It's like Tomcat server For I have developed an…… -
Java – how to link bifunctions?
I want to link bifunctions, just like in the chainwanted method in the following code example Bifunction takes functio…… -
Java – the relationship between GEF and GMF?
I am studying the eclipse modeling project and the summary of its subprojects It will not be published. Its only purpo…… -
Java – using dependency injection in Libraries
I am writing a Java library that will be used by existing applications I'm using dependency injection, so testing is e…… -
Multithreading – how to avoid threading?
I've recently read a lot about how writing multithreaded applications is a great pain, and I've learned enough about t…… -
Java – the sum of all numbers for a given positive number
Method returns that if you enter a number, assuming 345, the output should be 3 4 5 = 12 – > 1 2 = 3 What did I do …… -
Java – must be called ReleaseStringUTFChars after GetStringUTFChars (when char * is passed to C function)?
I'm a little confused about the objects passed from Java to C? Should they be deleted in native JNI methods or garbage…… -
Working with nested collections using java 8 streams
Recently, I encountered a problem when using nested collections (maps values in list): List<Map<String,Object>…… -
Java – @ Autowired bean used with @ valid on the controller but failed in the crud repository
I am using the user registration form to process the spring MVC hibernate JPA application. I decided to use the jsr-30…… -
Drools – gets the Java. DLL when the activate method is called on the taskclient lang.NullPointerException
Exception getting null pointer when calling activate method on client object This is my code @RequestMapping(value="/l…… -
Java – clean architecture: combined with interactors
I recently stumbled upon Uncle Bob's clean architecture. I'd like to know whether the interactors can execute other in…… -
Java Unisex bathroom
I have to use Java semaphores to solve this problem, but I don't know how. I can't find any relevant Java data What's …… -
Java, assertion and JIT
I tried to infer the JIT reason of hotspot I am most interested in the latest compilation phase (C2 compiler) Does JIT…… -
Java – how to get a list of classes in a project that are no longer needed for anything in the project
Is there any way to generate a list of classes in a java project that are no longer needed by any other classes in the…… -
Concurrency – printing to stdout results in blocked goroutine runs?
As a stupid basic threading exercise, I've been trying to implement sleeping barber problem in golang It should be eas…… -
Java – what is the memory range to refresh or publish to various threads when using volatile and synchronized?
This problem only concerns memory visibility and does not occur before and after There are four ways in Java to ensure……