Java 归档 - Page 331 of 655

Java – why does this Scala code throw an illegalaccesserror at runtime?

I have a simple application: object Test extends App { implicit def t2mapper[X,X0 <: X,X1 <: X](t: (X0,X1)) = ……

Java

2020-02-03

Java – in identity The @ picketlink annotation class is not used in login()

I'm trying to use the @ picketlinked class that extends baseauthenticator My setting is about wildlife 9.0 2. Final ea……

Java

2020-02-03

JSF – how to generate javax without ‘ID’ and ‘autocomplete’ attributes faces. Viewstate hide field

This is what I have in the output HTML document (generated by JSF 2.0 / mojarra 2.0.3): @ h_ 502_ 2@ My document shoul……

Java

2020-02-03

Java – do operations on ThreadLocal have to be synchronized?

This is the code I stumbled upon: class TransactionContextHolder { private static final ThreadLocal<TransactionCon……

Java

2020-02-03

Javafx8 tableview multisection returns one of the selected items to null

The tableview multi option returns one of the selected objects as null This doesn't happen every time, but when I try ……

Java

2020-02-03

How to make Java hashtable Containskey is applicable to array?

I'm sorry to ask this question, but I'm new to Java Hashtable<byte[],byte[]> map = new Hashtable<byte[],byte[……

Java

2020-02-03

Java – log4j2 logging occurs on the wrong path

I deployed an ear in Weblogic and put log4j2 XML logpath set to <Property name="logPath">some_path_1<Property……

Java

2020-02-03

Java – a single WSDL without schema import in Weblogic using jax-ws

How to use jax-ws to configure Weblogic 10.3 6 to include the object schema in a single WSDL file declaration instead ……

Java

2020-02-03

Java – what is the purpose of the original getter / setter in the field?

This is explained in the documentation of the public object get (object obj) method of the field class And for public ……

Java

2020-02-03

Java – finalized has 2.5 gigabytes of memory in 4 gigabytes

I have read many articles about how finalizers work. Here is my understanding: if a class has implemented the finalize……

Java

2020-02-03

Java – spring MVC on gae: slow load time

I recently deployed a spring MVC application to Google application engine. The initial loading time is about 7 seconds……

Java

2020-02-03

JavaFX 2.0 selection box problem How do I update the choicebox representing the object list when updating objects?

I have a list object choice@R_680_2419 @. when the name representing one of the objects is changed by another code, th……

Java

2020-02-03

Java – although the property is set, the canvas is not drawn correctly

I just made two drawings and tried to make one look the same as the other, but I had no luck For screenshots, the top ……

Java

2020-02-03

java. net. Socketexception: invalid request: invalid mode

I have an application running on Google App Engine, which is the back end of Android applications It is basically a br……

Java

2020-02-03

Dynamic binding = = late binding in Java or not?

I have read about this topic from different sources For example, Wikipedia says: But then a few lines So what's the tr……

Java

2020-02-03

Java – find all IP addresses in the local network

I want to find all IP addresses of devices in the local network I am currently connected to using java code A useful u……

Java

2020-02-03

Java – what is the purpose of the original getter / setter in the field?

This is explained in the documentation of the public object get (object obj) method of the field class And for public ……

Java

2020-02-03

Java – submit scores to Google play game leaderboard and display new rankings

I'm working on a game in which scores are submitted to the leaderboard in the activity, and new scores are displayed i……

Java

2020-02-03

Java – how to persist entities from non entity subclasses in Hibernate

I'm trying to extend an entity to a non entity to fill in the fields of the superclass The problem is that hibernate t……

Java

2020-02-03

How does the Java – runnable jar load external XML files at runtime?

(this seems to be a trivial problem, but it lasted for 2 days: () I have a runnable jar (created using the Maven assem……

Java

2020-02-03

Use enumerations to represent error messages – is this a good habit?

I want to combine my error messages and content into one file and make my code as readable as possible This is my exam……

Java

2020-02-03

Multithreading – how do I do the same calculations faster on a 4-core CPU: 4 threads or 50 threads?

Let's assume that we have a fixed amount of computing work, no blocking, sleep, I / O waiting This work can be well pa……

Java

2020-02-03

Java – ant contains external jar

I want to include an external jar. Jar in my java project I'm using ants External Jar is located in the Lib folder My ……

Java

2020-02-03

Java – timed out after 30000 milliseconds while waiting for a server that matches the writableserverselector

I have seen this problem in many forums, but none of them can solve my problem I'm trying to insert the sample documen……

Java

2020-02-03

Converting an image to a cylinder in Java

I didn't find any examples in OpenCV to convert a flat image into a cylinder in Java. I wanted it to render the image ……

Java

2020-02-03

Effective method for creating string from char [], start, length

We are using java Sax to parse very large XML files Our roles are as follows: @Override public void characters(char ch……

Java

2020-02-03

Java – prevents the use of non thread safe methods in a multithreaded context

Is there any way to throw an exception when a user tries to use a class's non thread safe method in a multithreaded co……

Java

2020-02-03

Java – SWT problem using syncexec()

This is my first question on stackoverflow I'll try my best to explain the problem I have a SWT application with foreg……

Java

2020-02-03

Java – Hibernate: automatically split tables every month

I'm working on a spring MVC application with PostgreSQL and hibernate. I have several tables with more than 100000 row……

Java

2020-02-03

Java – why are some methods on jconsole disabled

I can see that some methods on jconsole are disabled The following shows com sun. management. Screenshot of threadmxbe……

Java

2020-02-03

Java – realm: create a relationship by ID

Suppose I have several domain objects (tables) with many connections between them, and I haven't pre filled all the ob……

Java

2020-02-03

Java – how to get intersections from shapes in elasticsearch

I have stored the path in elasticsearch as polygon Now that I have a circle (a point and a radius), I can check whethe……

Java

2020-02-03

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Java – why does this Scala code throw an illegalaccesserror at runtime?

Java – in identity The @ picketlink annotation class is not used in login()

JSF – how to generate javax without ‘ID’ and ‘autocomplete’ attributes faces. Viewstate hide field

Java – do operations on ThreadLocal have to be synchronized?

Javafx8 tableview multisection returns one of the selected items to null

How to make Java hashtable Containskey is applicable to array?

Java – log4j2 logging occurs on the wrong path

Java – a single WSDL without schema import in Weblogic using jax-ws

Java – what is the purpose of the original getter / setter in the field?

Java – finalized has 2.5 gigabytes of memory in 4 gigabytes

Java – spring MVC on gae: slow load time

JavaFX 2.0 selection box problem How do I update the choicebox representing the object list when updating objects?

Java – although the property is set, the canvas is not drawn correctly

java. net. Socketexception: invalid request: invalid mode

Dynamic binding = = late binding in Java or not?

Java – find all IP addresses in the local network

Java – what is the purpose of the original getter / setter in the field?

Java – submit scores to Google play game leaderboard and display new rankings

Java – how to persist entities from non entity subclasses in Hibernate

How does the Java – runnable jar load external XML files at runtime?

Use enumerations to represent error messages – is this a good habit?

Multithreading – how do I do the same calculations faster on a 4-core CPU: 4 threads or 50 threads?

Java – ant contains external jar

Java – timed out after 30000 milliseconds while waiting for a server that matches the writableserverselector

Converting an image to a cylinder in Java

Effective method for creating string from char [], start, length

Java – prevents the use of non thread safe methods in a multithreaded context

Java – SWT problem using syncexec()

Java – Hibernate: automatically split tables every month

Java – why are some methods on jconsole disabled

Java – realm: create a relationship by ID

Java – how to get intersections from shapes in elasticsearch

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