Recent questions tagged Java

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java - Deserializing json array using gson

Continuing from this question. I'm having trouble deserializing the following json array (Sorry for the size): "geometry" ... , more or less... 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 - Consume SAMLResponse Token

SAML sp-based authentication has following short workflow. User wants to access application at sp. sp sends ... it will be beneficial. 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 intelliJ IDEA dependency scope is "provided" instead of "compile"?

I would like IntelliJ IDEA to have my libraries as "compile" scope instead of "provided" scope. This is a ... .8.0_112-release-408-b6 x86_64 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 - Tab widget have always in capital alphabets in android 4.0

In Android 4.0 i put tab bar with two widget. in code i write in small alphabates(new) but in application ... alphabates on tab in android 4.0 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 - How enable JSONP in RESTEasy?

Title say about my issue. I need wrap DTO in to a javascript method callback. Currently I return on request ... suggestion how can do 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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342 views

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java - What is meant by "the erasure of the static type of the expression on which it is called" in the getClass() docs?

The documentation for the "public final Class<?> getClass()" method of Object says: The actual result type is ... X| type notation be used? 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 multiple threadPoolExecutor for Async Spring

I am using Spring @Async on two classes. Both are ultimately implementing an interface. I am creating two ... , use this ThreadPoolTaskExecutor. 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 - Jenkins / Maven: Could not resolve default JAVA_HOME path, Build failing

I've got a problem regarding Java Builds in Jenkins. The Error I resolve is the following one: Unable to locate ... how to solve this problem? 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 pass parameter to a webservice using ksoap2?

I'm using Eclipse IDE to develop an android app. I'm trying to connect to a .net webservice. I'm ... parameter to a webservice using ksoap2? 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 - Finding if a circle is inside another circle

I'm having a bit of trouble. I have an assignment that requires me to find if a second circle is ... solution simply escapes me every time. See Question&Answers more detail:os...

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

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195 views

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java - Comparator and equals()

Suppose I need TreeSet with elements sorted with some domain logic. By this logic it doesn't matter order of some ... I don't need stable sort? See Question&Answers more detail:os...

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

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198 views

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java - while-else-loop

Of course this is an impossible statement in java (to-date), however ideally I would like to implement it ... and ArrayList commands and so on See Question&Answers more detail:os...

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

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561 views

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java - GC overhead limit exceeded with Apache POI

I have 13 .xlsx files with about 1000 rows in each of them. Now I want to merge it to one .xlsx file ... this happening and how to prevent 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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280 views

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java - Render image from servlet in flyingsaucer generated pdf

I'm using flyingsaucer to render an xhtml document to pdf through a servlet which returns the generated pdf document. ... code that can help me. See Question&Answers more detail:os...

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

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289 views

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java - Understanding the Single Responsibility Principle

I am quite confused on how to determine if a single method has one responsibility being done just like the following ... if I got it right. See Question&Answers more detail:os...

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

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351 views

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java - Cucumber Undefined Step, Though Defined Using IntelliJ

I'm trying to run a .feature file to test a simple RESTEasy web application: https://github.com/dashorst/ ... This is my project structure: See Question&Answers more detail:os...

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

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346 views

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java - Handle attachment in response with RequestBuilder in GWT

I am making a HTTP POST request from GWT Client to a HTTPServlet. This Servlet is creating a PDF ... I handle response in onResponseRecieved? See Question&Answers more detail:os...

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

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346 views

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java - Deploy WAR in embedded Tomcat 7

I currently need to create a server in order to run a number of unit test. To simplify this process I would ... to run with the automated tests. See Question&Answers more detail:os...

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

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270 views

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java - PreferenceFragment.findPreference always returns NULL

I'm currently trying to make a settings menu, that will show a MultiSelectListPreference, to select multiple ... with my PreferenceFragment? See Question&Answers more detail:os...

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

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233 views

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java - Spring Kafka: Multiple Listeners for different objects within an ApplicationContext

Can I please check with the community what is the best way to listen to multiple topics, with each topic containing ... way to do this? Thanks! See Question&Answers more detail:os...

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

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205 views

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java - Maven project won't compile after upgrade to Intellij 13.1 from 12

My code no longer compiles after the upgrade. Imports from libraries that are included as maven dependencies ... (EventDispatchThread.java:296) at java.awt.EventDispatchThread.pum...

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

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213 views

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java - Stream API not working for lazy loaded collections in EclipseLink / Glassfish?

After detecting a flaw in one of my web services I tracked down the error to the following one-liner: ... deployed on Glassfish / EclipseLink See Question&Answers more detail:os...

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

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547 views

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java - How to set page orientation for Word document?

I use Apache POI XWPF to create and handle MS Word documents. But I didn't find in the documentation how to ... But what about XWPF or HWPF? See Question&Answers more detail:os...

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

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199 views

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java - Generating power set recursively without any loops

How do you write a recursive method PowerSet(String input) that prints out all possible combinations of a string that ... , i.e. String input. See Question&Answers more detail:os...

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

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416 views

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java - execute sequense of commands in sshj

I need to execute some sequence of commands at the remote server via ssh, using sshj library. I do Session session ... not the /some/dir list. See Question&Answers more detail:os...

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

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250 views

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java - ClassNotFoundException even though the jar containing the class is properly present in the classpath

I'm configuring a new project in eclipse. my project has many modules including one of them named ... .loadClass(WebappClassLoader.java:1569) See Question&Answers more detail:os...

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

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204 views

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java - How to decorate all requests to take a value from header and add it in the body parameter?

Background I'm creating RESTful services using Spring MVC. Currently, I have the following structure for a controller: ... . Here's the link. See Question&Answers more detail:os...

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

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1.4k views

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java - "Type of the parameter must be a class annotated with @Entity" while creating Generic DAO interface in Room

I am using Room architecture component for persistence. I have created generic DAO interface to avoid boilerplate code ... works like this here See Question&Answers more detail:os...

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

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