Recent questions tagged Java

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java - Maven generates duplicate pom.xml and pom.properties files in a jar

I package my Maven-based Spring app with: mvn install-DskipTests -Peverything. And something strange arises. In META ... x86", family: "windows" 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 - Set log4j log level

I'm currently working on a project that uses log4j. I'm running a testcase (junit) and would like to ... in eclipse's run configuration dialog. 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 - JUnit tests for AspectJ

I am trying to write Junit tests for Custom Aspect. Here is the Aspect Class Snippet: @Aspect @Component public ... be great if provided.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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java - what is the meaning of Broken pipe Exception?

what is the meaning of broken pipe exception and when it will come? 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 - Spring Batch: org.springframework.batch.item.ReaderNotOpenException: Reader must be open before it can be read

I read SO related questions but the solutions don't work for me. I get the org.springframework.batch.item. ... . The question is 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 - setting JAVA_HOME & CLASSPATH in CentOS 6

I have unpacked my jdk in /usr/java/. and I put CLASSPATH, PATH, JAVA_HOME into /etc/profile like below. ... healing to me :D Thanks again. 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 - Save little information as setting in android (like first time that app is run)

I want to save a flag for recognizing that my app is run for the first time or not. For this simple ... read little pieces of information only. 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 - method does not override or implement a method from a supertype - for Override

I have looked all around but can't figure out why I'm getting the error error: method does not override ... tutorial). Thanks for any thoughts! 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 - Hibernate: Create Index

I want to create several Indexes in my DB. Unfortunately we have to change the persistence provider from EclipseLink to ... has, doesn't work. 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 - Max value of Xmx and Xms in Eclipse?

My settings for these values in eclipse.ini are: -Xms768M -Xmx1024M When setting them higher, Eclipse doesn ... values without Eclipse crashing? 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 ee 6 - Where should beans.xml be placed?

I've just upgraded to NetBeans 7.1 from 7.0. On opening a JSF managed bean it "helpfully" told me that it ... GlassFish 3.1.1 and Java 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 - Annotation SOURCE Retention Policy

From the Java doc: CLASS: Annotations are to be recorded in the class file by the compiler but need not ... .SOURCE) Can you explain? 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 does ArrayList implement RandomAccess Interface?

ArrayList implements RandomAccess interface. RandomAccess interface has no methods. When I checked LinkedList it does ... of implementing 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 stop a ScheduledExecutorService?

The program finishes after nine prints: class BeeperControl { private final ScheduledExecutorService scheduler = Executors. ... in 9 seconds? 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 - Does Javadoc have an equivalent to <![CDATA[ ... ]]>?

Unfortunately, there is no CDATA in HTML. This is a pity, because it would be perfect for adding javadoc ... inside... Does anybody know? See Question&Answers more detail:os...

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

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450 views

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java - JAXB vs Apache XMLBeans

Anyone can tell me which one is better (JAXB or Apache XMLBeans) taking in account the performance for files bigger than 10Mb? See Question&Answers more detail:os...

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

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386 views

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java - Android scrollview remove blue light

When you scroll on Android using scrollview, it generates a blue light the direction you are scrolling in. ... (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 - Is the volatile keyword required for fields accessed via a ReentrantLock?

My question refers to whether or not the use of a ReentrantLock guarantees visibility of a field in the same ... still like to code correctly. See Question&Answers more detail:os...

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

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331 views

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java - Get Enum Instance from Class<? extends Enum> using String value?

I'm finding it difficult to put the exact question into words, so I'll just give an example. I have two Enum ... is a subclass of Enum.) 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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java - Can't avoid hibernate logging SQL to console with Spring Boot and Logback

My Spring Boot application keeps showing Hibernate queries in the console despite having configured Hibernate's specific ... am I missing? 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 Environment Variable in Netbeans?

I am running maven based Spring project in netbeans . I am using an environment variable in my project configurations ... Can any one 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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191 views

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java - Resource leak in Files.list(Path dir) when stream is not explicitly closed?

I recently wrote a small app that periodically checked the content of a directory. After a while, the app ... of file system resources"? See Question&Answers more detail:os...

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

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595 views

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java - Show JDialog on Windows taskbar

I'm trying to display a JDialog in Windows. How do I show a JDialog (like JFrame) on my Windows taskbar? See Question&Answers more detail:os...

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

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273 views

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java - What is the proper replacement of the Resteasy 3.X PreProcessInterceptor?

I'm building rest service using an authentication/authorization mechanism as described in this tutorial: http:// ... problem? Thank you. 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 - What is the id=xxx next to variable entries in the Eclipse Debugger

What is the id=xxx next to variable entries in the Eclipse Debugger> I know it seems to uniquely identify ... relationship to the object is. 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 - Subtracting one arrayList from another arrayList

I have two arrayLists and I am trying to "subtract" one arrayList from another. For example, if I have one ... else{} } } return minusArray; See Question&Answers more detail:os...

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

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171 views

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java - ActionBarSherlock 4.0 doesn't work. But 3.5.1 do

If I use ActionBarSherlock 3.5.1 everything is fine and workes. But if I want to use 4.0 RC1 I got ... .Holo.Light.DarkActionBar'. Any ideas? See Question&Answers more detail:os...

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

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360 views

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java - Unzip Archive with Groovy

is there a built-in support in Groovy to handle Zip files (the groovy way)? Or do i have to use Java's ... to process Zip files in Groovy ? See Question&Answers more detail:os...

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

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