Click on the &quot;maven projects&quot; (make sure tool buttons are on) on the right side of intelij and then click on &quot;Download Documentation&quot;.

Also, for future downloading you can go to the File -&gt; Settings -&gt; Build,execution, deployment, -&gt; build tools -&gt; Maven -&gt; importing -&gt; mark &quot;Documentation&quot; checkbox and apply settings

# *Maven Projects* panel

*Maven Projects* tool window &gt; Icon with green arrow and a box &gt; *Download Documentation*:

[![enter image description here][1]][1]

See IntelliJ IDEA documentation for [Version 14.1](https://www.jetbrains.com/help/idea/14.0/maven-projects-tool-window.html#d1453953e155) or [current version](https://www.jetbrains.com/help/idea/maven-projects-tool-window.html).

  [1]: http://i.stack.imgur.com/LeC9j.png

For me, it worked when I pressed on Download Source and Documentation.

By the way, if you experience same case with me (working with corporate Maven repository), Maven may be ignoring an opportunity to further download javadoc if it once wasn&#39;t there. And to make it request it one more time, you have to remove `&lt;artifactId&gt;-&lt;version&gt;-javadoc.jar.lastUpdated` file from `.m2/repository/&lt;groupId&gt;/&lt;artifactId&gt;/&lt;version&gt;`, then try again.

I want to install Visual Studio Ultimate 2013 on my Windows 10 but I have this error:

![enter image description here][1]

I have done these two things (they have solved the problem on Windows 8)

![enter image description here][2]

![enter image description here][3]

but still I cannot install it. 



  [1]: http://i.stack.imgur.com/TSCqZ.png
  [2]: http://i.stack.imgur.com/DxvSI.png
  [3]: http://i.stack.imgur.com/47wSx.png

Visual Studio 2013 Install Fails: Program Compatibility Mode is on (Windows 10)

I am using Vue.js in my app and have a text input within a form

    &lt;div id=&quot;myVueForm&quot;&gt;
    &lt;form&gt;
       &lt;input type=&quot;text&quot; v-on=&quot;keyup:addCategory | key &#39;enter&#39;&quot;&gt;
    
       &lt;!-- more form fields --&gt;
       &lt;button type=&quot;submit&quot;&gt;Submit Form&lt;/button&gt;
    &lt;/form&gt;
    &lt;/div&gt;

In my Vue instance I have the following

    new Vue({
        el: &#39;#myVueForm&#39;,
    
        methods: {
            addCategory: function(e)
            {
               if(e) e.preventDefault();
               console.log(&quot;Added a new category, thanks!&quot;);
            }
        }
    });

Despite the `preventDefault()` call, when a user presses enter whilst on the text input the form still submits (although the `addCategory()` method does fire). This behaviour can be demonstrated in [this fiddle][1].

I know I can use jQuery to catch the event and prevent the submit, but I&#39;d like to see if it&#39;s possible in Vue to do this as it seems quite a common usage.


  [1]: http://jsfiddle.net/Lr3yk13e/4/

Prevent form submitting when pressing enter from a text input, using Vue.js

I have the following descriptions for some Maven entries in Project Structure:

![enter image description here][1]

Javadoc file is really absent in filesystem. Simultaneously, it is present in central repository. Why it was not downloaded and how to download it by force?

**UPDATE**

These options are ON already:

![enter image description here][2]

Have tried to recompile, close/open etc after setting them...


  [1]: http://i.stack.imgur.com/0U10y.png
  [2]: http://i.stack.imgur.com/WblxR.png

How to force IntelliJ to download javadocs with Maven?

I have the following descriptions for some Maven entries in Project Structure:
<img src="http://i.stack.imgur.com/0U10y.png" alt="enter image description here">
Javadoc file is really absent in filesystem. Simultaneously, it is present in central repository. Why it was not downloaded and how to download it by force?
UPDATE
These options are ON already:
<img src="http://i.stack.imgur.com/WblxR.png" alt="enter image description here">
Have tried to recompile, close/open etc after setting them...

What is the right way to add HttpRequest interceptors in spring boot application? What I want to do is log requests and responses for every http request.

Spring boot documentation does not cover this topic at all. (http://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/)

I found some web samples on how to do the same with older versions of spring, but those work with applicationcontext.xml. Please help.

Spring Boot Adding Http Request Interceptors

Please read the question carefully before marking this as duplicate. 

Below is the snippet of the pseudo code. 
My question is- Does the below code not defeat the very notion of parallel asynchronous processing? 

The reason I ask this is because in the below code the main thread would submit a task to be executed in a different thread. After submitting the task in the queue, it blocks on Future.get() method for the task to return the value. I would rather have the task executed in the main thread rather than submitting to a different thread and waiting for the results. What is that I gained by executing the task in a new thread? 

I am aware that you could wait for a limited time etc, but then what if I really care about the result? The problem gets worse if there are multiple tasks to be executed. It seems to me that we are just doing the work synchronously. I am aware of the Guava library which provides a non blocking listener interface. But I am interested to know if my understanding is correct for the Future.get() API. If it is correct, why is the Future.get() designed to block thereby defeating the whole process of parallel processing?

Note - For the record, I use JAVA 6


    public static void main(String[] args){
    
    private ExectorService executorService = ...
    
    Future future = executorService.submit(new Callable(){
        public Object call() throws Exception {
            System.out.println(&quot;Asynchronous Callable&quot;);
            return &quot;Callable Result&quot;;
        }
    });
    
    System.out.println(&quot;future.get() = &quot; + future.get());
    }

Method call to Future.get() blocks. Is that really desirable?

I have a class where every method starts the same way:

    class Foo {
      public void bar() {
        if (!fooIsEnabled) return;
        //...
      }
      public void baz() {
        if (!fooIsEnabled) return;
        //...
      }
      public void bat() {
        if (!fooIsEnabled) return;
        //...
      }
    }

Is there a nice way to require (and hopefully not write each time) the `fooIsEnabled` part for every public method in the class?

Is there an elegant way to make every method in a class start with a certain block of code?

I am still in the process of learning Lambda, please excuse me If I am doing something wrong


    final Long tempId = 12345L;
    List&lt;Entry&gt; updatedEntries = new LinkedList&lt;&gt;();
    
    for (Entry entry : entryList) {
    	entry.setTempId(tempId);
        updatedEntries.add(entityManager.update(entry, entry.getId()));
    }
    
    //entryList.stream().forEach(entry -&gt; entry.setTempId(tempId));

Seems like `forEach` can be executed for one statement only. It doesn&#39;t return updated stream or function to process further. I might have selected wrong one altogether.

Can someone guide me how to do this effectively?

One more question,

    public void doSomething() throws Exception {
        for(Entry entry: entryList){
            if(entry.getA() == null){
                printA() throws Exception;
            }
            if(entry.getB() == null){
                printB() throws Exception;
            }
            if(entry.getC() == null){
                printC() throws Exception;
            }
        }
    }
        //entryList.stream().filter(entry -&gt; entry.getA() == null).forEach(entry -&gt; printA()); something like this?

How do I convert this to Lambda expression?

Java 8 Lambda Stream forEach with multiple statements

In [this Spring Boot application][1] there is a web service, which returns some data for a logged-in user:

    @RequestMapping(&quot;/resource&quot;)
    public Map&lt;String, Object&gt; home() {
    	Map&lt;String, Object&gt; model = new HashMap&lt;String, Object&gt;();
    	model.put(&quot;id&quot;, UUID.randomUUID().toString());
    	model.put(&quot;content&quot;, &quot;Hello World&quot;);
    	return model;
    }

Imagine, the return value of the method depends on what user is currently logged in.

How can I find out, which user is logged in in that method?


  [1]: https://github.com/dsyer/spring-security-angular/blob/master/single/src/main/java/demo/UiApplication.java

How to find out the currently logged-in user in Spring Boot?

I have a very simple question, but I Googled and somehow I couldn&#39;t find it. I was wondering how can I get the

![Maven Project Pane][1]

in Intellij 14 or something similar?

I saw it in a tutorial, but couldn&#39;t find the panel. In my case when I followed this [video][2] exactly, I couldn&#39;t see the panel and I couldn&#39;t find it anywhere. I have IntelliJ 14.

**UPDATE**
I just experimented a bit with the Intellij interface but I can&#39;t seem to see the right hand side bar. See 

![image][3]


  [1]: http://i.stack.imgur.com/apPNu.png
  [2]: https://youtu.be/Sc2atFv_h_I?list=PL4gCdGOq-cxJrbRMWjrIvGhYqQO1tvYyX
  [3]: http://i.stack.imgur.com/d4GNU.png

How to get the Maven project window in Intellij 14 | Update: cannot see the right side &quot;tab bar&quot; with Maven project

I recently uninstalled Java 8, to use Java 6 as I want my code/creations to be usable by more people than just those on Java 8. When I do `mvn - version` it returns:

    Exception in thread &quot;main&quot; java.lang.UnsupportedClassVersionError: org/apache/maven/cli/MavenCli : Unsupported major.minor version 51.0
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
        at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClassFromSelf(ClassRealm.java:401)
        at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:42)
        at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)
        at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:254)
        at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)
        at org.codehaus.plexus.classworlds.launcher.Launcher.getMainClass(Launcher.java:144)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:266)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)

When I do `java -version`:

    java version &quot;1.6.0_45&quot;
    Java(TM) SE Runtime Environment (build 1.6.0_45-b06)
    Java HotSpot(TM) 64-Bit Server VM (build 20.45-b01, mixed mode)

Everything seems fine with Java, but this also happens when I try to run executable JARs. I got around it by manually doing java -jar (jar name)

Java 6 Unsupported major.minor version 51.0

_What I want to do is build a docker image for my Java application but the following considerations should be true for most compiled languages._

# problem
On my build server I want to produce a docker image for my application as the deliverable. For this I have to compile the application using some build tool (typically Gradle, Maven or Ant) and then add the created JAR file to the docker image. As I want the docker image to just execute the JAR file I will of course start from a base image with Java already installed.

# There are three ways of doing this:

## let the build tool control the process
In this case my build tool controls the whole process. So it prepares the JAR file and after the JAR is created it calls Docker to create the image. This works as the JAR is created beforehand and Docker can be  oblivious of the build process needed to create the JAR.

But my Dockerfile is no longer standalone. It depends on steps to happen outside of Docker for it work. In my Dockerfile I will have a `COPY` or `ADD` statement that is supposed to copy the JAR file to the image. This statement will fail when the jar is not created beforehand. So just executing the Dockerfile might not work. This becomes a problem if you want to integrate with services that just build using the present Dockerfile like the auto-build feature on DockerHub.

## let Docker control the build
In this case all necessary steps to create the image are added to the Dockerfile so the image can be created by just executing the Docker build.

The main problem with this approach is that there is no way to add to a Dockerfile commands that should be executed outside the docker image being created. This means I have to add my source code and my build tools to the docker image and build my JAR file inside the image. This will result in my image being bigger than it has to be due to all the files added that will be unnecessary at runtime. This will also add extra layers to my image.

### Edit:
As @adrian-mouat pointed out if I would add the sources, build the application and deleted the sources in one RUN statement I could avoid adding unnecessary files and layers to the Docker image. This would mean creating some insane chained command. 

## two separate builds
In this case we split our build in two: first we create the JAR file using our build tool and upload it to a repository (Maven or Ivy repository). We then trigger a separate Docker build that just adds the JAR file from the repository.

# conclusion
In my opinion the better way would be _letting the build tool control the process_. This is will result in a clean docker image and as the image is what we want to deliver this is of importance. To avoid having a potentially not working Dockerfile lying around this should be created as part of the build. So no one would accidentally use it to start a broken build.

But this will not allow me to integrate with DockerHub.

# question
Is there another way I am missing?

# update June 2020
In the years since I first created this question a lot of stuff has changed. At this point I would advocate using [Googel&#39;s JIB Tool](https://github.com/GoogleContainerTools/jib). It integrates with the most common Java Build Tools (Maven and Gradle) and allows you to create container directly from your build. This is much more concise than any of the old approaches I considered all these years ago.

# update February 2021
I found this blog post and video from James Ward that reflects better what is currently state of the art.
https://cloud.google.com/blog/topics/developers-practitioners/comparing-containerization-methods-buildpacks-jib-and-dockerfile

How to build a docker container for a Java application

I thought that the order of Maven dependencies doesn&#39;t matter before and regard this as a pro of it. And this is my old `pom.xml`&#39;s dependencies:

    &lt;dependencies&gt;

        &lt;dependency&gt;
            &lt;groupId&gt;org.glassfish.jersey.containers&lt;/groupId&gt;
            &lt;artifactId&gt;jersey-container-servlet&lt;/artifactId&gt;
            &lt;version&gt;2.19&lt;/version&gt;
        &lt;/dependency&gt;

        &lt;dependency&gt;
            &lt;groupId&gt;org.springframework&lt;/groupId&gt;
            &lt;artifactId&gt;spring-web&lt;/artifactId&gt;
            &lt;version&gt;4.1.7.RELEASE&lt;/version&gt;
        &lt;/dependency&gt;

        &lt;dependency&gt;
            &lt;groupId&gt;org.glassfish.jersey.ext&lt;/groupId&gt;
            &lt;artifactId&gt;jersey-spring3&lt;/artifactId&gt;
            &lt;version&gt;2.19&lt;/version&gt;
        &lt;/dependency&gt;

        &lt;dependency&gt;
            &lt;groupId&gt;org.glassfish.jersey.media&lt;/groupId&gt;
            &lt;artifactId&gt;jersey-media-moxy&lt;/artifactId&gt;
            &lt;version&gt;2.19&lt;/version&gt;
        &lt;/dependency&gt;

    &lt;/dependencies&gt;
It works well, and today I wanna move spring dependency to the bottom so that those jersey related can be together. However then I can no longer make it working, my Jetty complains:

    [ERROR] Failed to execute goal org.eclipse.jetty:jetty-maven-plugin:9.3.0.M1:run (default-cli) on project mtest: Execution default-cli of goal org.eclipse.jetty:jetty-maven-plugin:9.3.0.M1:run failed: A required class was missing while executing org.eclipse.jetty:jetty-maven-plugin:9.3.0.M1:run: org/apache/commons/logging/LogFactory
That is really confusing, so do I have to concern about dependencies order? How do I know the correct order?

Why order of Maven dependencies matter?

Consider:

[![Enter image description here][1]][1]

When I create a simple [Maven][2] project in [Eclipse][3] I am getting this error:

&gt; web.xml is missing and `&lt;failOnMissingWebXml&gt;` is set to
&gt; true

How can I fix this problem?

  [1]: http://i.stack.imgur.com/Yd22p.png
  [2]: http://en.wikipedia.org/wiki/Apache_Maven
  [3]: http://en.wikipedia.org/wiki/Eclipse_%28software%29


web.xml is missing and &lt;failOnMissingWebXml&gt; is set to true

In Eclipse, while coding in Java and press &lt;kbd&gt;Ctrl&lt;/kbd&gt; + &lt;kbd&gt;Shift&lt;/kbd&gt; + &lt;kbd&gt;O&lt;/kbd&gt; auto import all the Classes automatically.  
In NetBeans, this is done with &lt;kbd&gt;Ctrl&lt;/kbd&gt; + &lt;kbd&gt;Shift&lt;/kbd&gt; + &lt;kbd&gt;I&lt;/kbd&gt;.

Is any way to do this in IntelliJ IDEA?

I searched an equivalent shortcut in google, StackOverflow, IntelliJ IDEA configuration and in the official IntelliJ website [Keyboard Shortcuts You Cannot Miss][1] 


  [1]: https://www.jetbrains.com/idea/help/keyboard-shortcuts-you-cannot-miss.html



Any way (or shortcut) to auto import the classes in IntelliJ IDEA like in Eclipse?

Intellij Idea 14.1.4
Mac OS X Yosemite 10.10.3 and later.
 
From the IDE:

    Import Project -&gt;
    (Chosen directory to import) -&gt;
    Import project from external model, Gradle -&gt;
    Gradle Home: /usr/local/Cellar/gradle/2.4/libexec
    Gradle JVM: Use JAVA_HOME (not defined yet)
 
From shell:

    echo $JAVA_HOME
 
    /Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home
(defined in .profile: export JAVA_HOME=&quot;$(/usr/libexec/java_home -v 1.8)&quot;
 
What am I missing. I have checked other discussions in SO, for example, https://stackoverflow.com/questions/30960103/intellij-java-home-variable, but don&#39;t have Project SDK prompt. 

![][1]



  [1]: http://i.stack.imgur.com/Dt6zH.png

Intellij Idea: Importing Gradle project - getting JAVA_HOME not defined yet

I am trying to convert an IntelliJ project to the Gradle system of Android Studio but I am running into errors with Apache HttpClient? Am I missing something, the errors I am getting are as follows:

    Error:(10, 30) error: package org.apache.http.client does not exist
    Error:(11, 30) error: package org.apache.http.client does not exist
    Error:(12, 37) error: package org.apache.http.client.entity does not exist
    Error:(13, 38) error: package org.apache.http.client.methods does not exist
    Error:(14, 38) error: package org.apache.http.client.methods does not exist
    Error:(15, 38) error: package org.apache.http.client.methods does not exist
    Error:(16, 35) error: package org.apache.http.impl.client does not exist
    Error:(134, 33) error: cannot find symbol class HttpUriRequest
    Error:(164, 39) error: cannot find symbol class HttpUriRequest
    Error:(106, 17) error: cannot find symbol class HttpGet
    Error:(106, 39) error: cannot find symbol class HttpGet
    Error:(117, 17) error: cannot find symbol class HttpPost
    Error:(117, 40) error: cannot find symbol class HttpPost
    Error:(125, 43) error: cannot find symbol class UrlEncodedFormEntity
    Error:(135, 9) error: cannot find symbol class HttpClient
    Error:(135, 33) error: cannot find symbol class DefaultHttpClient
    Error:(155, 18) error: cannot find symbol class ClientProtocolException
    Error:(165, 9) error: cannot find symbol class HttpClient
    Error:(165, 33) error: cannot find symbol class DefaultHttpClient
    Error:(185, 18) error: cannot find symbol class ClientProtocolException

My build.gradle file has the following dependencies:

    dependencies {
        compile &#39;com.google.android.gms:play-services:+&#39;
        compile &#39;org.apache.httpcomponents:httpclient:4.2.6&#39;
        compile &#39;org.apache.httpcomponents:httpmime:4.2.6&#39;
        compile files(&#39;libs/core.jar&#39;)
    }

It seems a lot of people are getting a similar problem but neither SO or Google have a solution so I am hoping this question will help future searchers.

Android Gradle Apache HttpClient does not exist?

How does one who is using IntelliJ or Android Studio extract a public static inner class to create a new top level class?

Thank you.

Content Type	Original Author	Original Content on Stackoverflow
Question	Dims	View Question on Stackoverflow
Solution 1 - Java	user3207081	View Answer on Stackoverflow
Solution 2 - Java	Lu55	View Answer on Stackoverflow
Solution 3 - Java	AH Developer	View Answer on Stackoverflow
Solution 4 - Java	vintprox	View Answer on Stackoverflow

How to force IntelliJ to download javadocs with Maven?

Java Problem Overview

Java Solutions

Solution 1 - Java

Solution 2 - Java

Maven Projects panel

Solution 3 - Java

Solution 4 - Java

Prevent form submitting when pressing enter from a text input, using Vue.js

Visual Studio 2013 Install Fails: Program Compatibility Mode is on (Windows 10)

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