Recent questions tagged Java

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I'm having trouble providing the dependencies needed for OAuth Client Library for Java within an OSGI application ... .xml.sax,sun.misc See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Generate ECPublicKey from ECPrivateKey

I'm trying to generate a public key given a private key and known curve. Below is my code: // Generate Keys ... error is. Thanks for the help! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - PatternSyntaxException using apache poi

I am using Apache POI in two different projects The first project is a standalone Java application. Everything is ... Java application .... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Why Stream operations is duplicated with Collectors?

Please allow me to make some complaints, maybe it is boringly but I want to describe:"Why did this question ... them. Thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - <absolute-ordering> is not working in tomcat 7

I saw this answer that suggests to add <absolute-ordering>. I am using tomcat 7.0.29 and have a few ... is executed BEFORE session filter. Why? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - IllegalArgumentException: Not enough variable values available with RestTemplate?

I am trying to execute URL using RestTemplate like this - public static void main(String[] args) throws ... .getForObject(RestTemplate.java:228) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - maven not running integration test methods

I am using dockerfile-maven plugin to move jar file inside my docker container and maven-failsafe-plugin to initiate ... Errors: 0, Skipped: 0 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Press Enter key in Selenium script

I am using Selenium Server (v2.21) and Selenium Java Client (v.2.21.0) to automate a web form that needs ... emulate the press of the Enter key? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Switched from Hibernate 4.3.1 to 5.0.6 and Transaction is gone

I am working on a Hibernate project.I had used Hibernate 4.3.1 libraries of Netbeans. Then I needed to use ... lucene libraries. I am confused. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to convert Gregorian string to Gregorian Calendar?

I have to compute something based on the Calendar's date, but I am receiving the complete Gregorian ... to process further computation. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Tomcat after Startup Event with spring

I have a function I want to execute straight after tomcat has started and loaded all its attributes successfully. I ... how to go about this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java circle recognition from an arraylist of points

I currently have an arraylist of points from a freehand drawing on a canvas. I was wondering if there is ... . thanks in advance sansoms, See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Hidden Field Value Blank Thymeleaf

I have a thymeleaf form which has 2 hidden fields. I specify the value of the hidden fields using th:value, and ... the server can process it. ` See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to set the resource of MultiResourceItemWriter dynamically from ItemReader in Spring Batch

The batch job is: Reading from a csv file Create an xml file for every record(line) in the csv with name Patent. ... Patent"/> </bean> </beans> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How do I click a javascript button with htmlunit?

I'm working on an application that will automatically click a button on a webpage using htmlunit in Java. Only problem is ... false; }); } }); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - org.openqa.selenium.WebDriverException: Error forwarding the new session cannot find : Capabilities

Hub starting command : java -jar selenium-server-standalone-3.11.0.jar -role hub Node starting command : java - ... know what am I doing wrong? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Repaint() doesn't clear the frame

public class Graphics2DTest extends JPanel implements ActionListener{ private Timer time = new Timer(5,(ActionListener ... explain your answers. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - PropertyPlaceholderConfigurer with Hibernate.cfg.xml

I have 2 files which need to be bound together: hibernate.cfg.xml and hibernate properties. How ... true db.current_session_context_class=thread See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Why Long.toHexString(0xFFFFFFFF) returns ffffffffffffffff

This is what I see in java, and it puzzles me. Long.toHexString(0xFFFFFFFF) returns ffffffffffffffff Similarly, ... , 16) are unequal. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to use a child association property as a Map key in JPA parent entity

I'm having two entities Car and CarDescription where CarDescription is depending on another foreign key from the ... a correct mapping? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Stable sort - do we really need it?

I do not understand the underlying problem that tries to solve the stable sorting algorithm. Arrays.sort( ... appropriate compound comparators. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Replace text in text box of docx by using Apache POI

I am using Apache POI to replace words of docx. For a normal paragraph, I success to use XWPFParagraph ... without creating a new XWPFParagraph? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to execute script from JAR file?

I have a maven project, in which, I am trying to execute a script (written in R). I put this script ... ensure its execution? Thanks a lot ! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Is it possible to declare two wildcard types to be of same type?

I want to create a mapping from (a) class type to (b) long (the identifier of the object of the defined class type) ... T>, HashMap<Long, T>>(); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Coloring jTable row

I want to color specific rows in jTable..i did it for columns by using this code, private class CustomCellRenderer ... by using Java Swing.. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Why do we need super keyword to call default interface methods?

In the below code when I am having a class implementing two interfaces with same default method signature it ask me to ... (); inter.AImp(); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - GNUPlot disappears immediately after its creation

I have created the gnuplot, but the problem is that it disappears immediately. I tried different solutions proposed in ... code on Windows 7. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Singleton Bean instance by generic parameter

I would like to have a singleton bean instance by generic parameter based on a single @Component generic class. ... in a @Configuration class ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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