1. In Eclipse, click on **Windows &gt; Preferences**, and then choose **Maven** in the left side.
1. Check the box &quot;**Download repository index updates on startup**&quot;.
 - Optionally, check the boxes **Download Artifact Sources** and **Download Artifact JavaDoc**.
1. Click **OK**. The warning won&#39;t appear anymore.
1. Restart Eclipse.

![http://i.imgur.com/IJ2T3vc.png][1]

  [1]: http://i.stack.imgur.com/iLj4H.png

Tick &#39;Full Index Enabled&#39; and then &#39;Rebuild Index&#39; of the central repository in &#39;Global Repositories&#39; under `Window &gt; Show View &gt; Other &gt; Maven &gt; Maven Repositories`, and it should work.

The rebuilding may take a long time depending on the speed of your internet connection, but eventually it works.

I have seen a number of questions on StackOverflow discussing ng-transclude, but none explaining in layman&#39;s terms what it is.

The description in the documentation is as follows:

&gt;Directive that marks the insertion point for the transcluded DOM of the nearest parent directive that uses transclusion.

This is fairly confusing. Would someone be able to explain in simple terms what ng-transclude is intended to do and where it might be used?

What is ng-transclude?

I am building something with React where I need to insert HTML with React Variables in JSX. Is there a way to have a variable like so:

    var thisIsMyCopy = &#39;&lt;p&gt;copy copy copy &lt;strong&gt;strong copy&lt;/strong&gt;&lt;/p&gt;&#39;;

and to insert it into react like so, and have it work?

    render: function() {
        return (
            &lt;div className=&quot;content&quot;&gt;{thisIsMyCopy}&lt;/div&gt;
        );
    }

and have it insert the HTML as expected? I haven&#39;t seen or heard anything about a react function that could do this inline, or a method of parsing things that would allow this to work.

Insert HTML with React Variable Statements (JSX)

I am using Eclipse Luna with the m2e plug-in. When I search for dependencies, I get the following warning (also see the screenshot after):

&gt; Index downloads are disabled, search result may be incomplete.

![enter image description here][1]

How can I enable index downloads?

  [1]: http://i.stack.imgur.com/1HgVO.png

How do I enable index downloads in Eclipse for Maven dependency search?

I am using Eclipse Luna with the m2e plug-in. When I search for dependencies, I get the following warning (also see the screenshot after):
> Index downloads are disabled, search result may be incomplete.
<img src="http://i.stack.imgur.com/1HgVO.png" alt="enter image description here">
How can I enable index downloads?

I created a project in Eclipse using the Spring Starter project template.

It automatically created an Application class file, and that path matches the path in the POM.xml file, so all is well. Here is the Application class:

    @Configuration
    @ComponentScan
    @EnableAutoConfiguration
    public class Application {
    
        public static void main(String[] args) {
            //SpringApplication.run(ReconTool.class, args);  
        	ReconTool.main(args);
        }
    }

This is a command line app that I am building and in order to get it to run I had to comment out the SpringApplication.run line and just add the main method from my other class to run.
Other than this quick jerry-rig, I can build it using Maven and it runs as a Spring application, sort of.

I&#39;d rather, however, not have to comment out that line, and use the full Spring framework. How can I do this?



SpringApplication.run main method

How do I specify database schema used by Spring Boot? I am using default hibernate (=default) and postgres (but i hoping for a generic solution). I know how to specify JDBC URL:

    spring.datasource.url=jdbc:postgresql:db_name

But unfortunately postgresql does not allow to specify schema in JDBC URL. I know that there is hibernate property `hibernate.default_schema`, so I was hoping that one of the following properties will work:

    hibernate.default_schema=schema
    spring.hibernate.default_schema=schema
    spring.jpa.hibernate.default_schema=raw_page

But unfortunately neither of them seems to have any result.  

Change database schema used by Spring Boot

I am having trouble understanding some of the basics of Java JRE.

I need to run Java code in an embedded system and for this I need a minimal Java Runtime Environment installed in a Linux kernel, that is to say, the minimum package necessary for executing Java binaries. I think it is not possible to do this only with a JVM (the JRE package is necessary, am I wrong here?)

The thing is, when looking at the Debian repositories I don&#39;t quite understand the differences between the packages `openjdk-6-jre`, `openjdk-6-jre-headless` and `openjdk-6-jre-lib`. Will Java programs run only with the former? or, are the three of them needed? 

This is an issue as there is a big difference in size (MB) between them.


Difference between openjdk-6-jre, openjdk-6-jre-headless, openjdk-6-jre-lib

I was going through this question [Is there a way to override class variables in Java?][1]
The first comment with 36 upvotes was:
&gt; If you ever see a `protected static`, run.

Can anyone explain why is a `protected static` frowned upon?

  [1]: https://stackoverflow.com/questions/685300/is-there-a-way-to-override-class-variables-in-java

Why we should not use protected static in java

Before Java 8, lambda functionality could be achieved by using anonymous inner classes. For example:

    interface Lambda {
        void doStuff();
    }
    
    // ...
    
    public void doWithCallback(Lambda callback) {
        // ...
        callback.doStuff();
    }
    
    // ...
    
    doWithCallback(new Lambda { 
        public void doStuff() { 
            // ... 
        } 
    });

In terms of performance, is there a difference between still using this approach and using the new Java 8 lambdas?



Performance difference between Java 8 lambdas and anonymous inner classes

How to select subset of characters in many lines (column selection) in Eclipse/Android Studio?
Ideally without plugins. Shift+Alt+A seems not to be working for me either.

In Notepad++ you can do it with Shift+Alt+(Arrows) or Alt+Left_Mouse (and drag to select)

Please see example below (Column selection I&#39;m after):

[![Example][1]][1]  
&lt;sub&gt;(source: [softwareninjaneer.com](http://softwareninjaneer.com/images/StreamAndColumnSelectionModes.png))&lt;/sub&gt;  


Visual Studio and many other tools support it.

Thanks


 [1]: https://i.stack.imgur.com/KSG4V.png

Select subset of characters in many lines (column selection) in Eclipse/Android Studio

I updated Eclipse with the new SDK tools (rev. 23), but now when Eclipse starts I receive the error:

&gt; This Android SDK requires Android Developer Toolkit version 23.0.0 or above. Current version is 22.6.3.v201404151837-1123206. Please update ADT to the latest version.

No updates were found with **&quot;Check for updates&quot;**. If I try **&quot;Install new software&quot;**, I can see version 23, but I can&#39;t upgrade due to the following error:

    Cannot complete the install because of a conflicting dependency.
    Software being installed: Android Development Tools 23.0.0.1245622 (com.android.ide.eclipse.adt.feature.feature.group 23.0.0.1245622)
    Software currently installed: Android Developer Tools 22.2.1.v201309180102-833290 (com.android.ide.eclipse.adt.package.product 22.2.1.v201309180102-833290)
    Only one of the following can be installed at once: 
        ADT Package 22.6.3.v201404151837-1123206 (com.android.ide.eclipse.adt.package 22.6.3.v201404151837-1123206)
        ADT Package 23.0.0.1245622 (com.android.ide.eclipse.adt.package 23.0.0.1245622)
    Cannot satisfy dependency:
        From: Android Development Tools 23.0.0.1245622 (com.android.ide.eclipse.adt.feature.feature.group 23.0.0.1245622)
        To: com.android.ide.eclipse.adt.package [23.0.0.1245622]
    Cannot satisfy dependency:
        From: Android Development Tools 22.6.3.v201404151837-1123206 (com.android.ide.eclipse.adt.feature.group 22.6.3.v201404151837-1123206)
        To: com.android.ide.eclipse.adt.package [22.6.3.v201404151837-1123206]
    Cannot satisfy dependency:
        From: ADT Package 22.2.1.v201309180102-833290 (com.android.ide.eclipse.adt.package.feature.group 22.2.1.v201309180102-833290)
        To: com.android.ide.eclipse.adt.feature.group 22.2.0
    Cannot satisfy dependency:
        From: Android Developer Tools 22.2.1.v201309180102-833290 (com.android.ide.eclipse.adt.package.product 22.2.1.v201309180102-833290)
        To: com.android.ide.eclipse.adt.package.feature.group [22.2.1.v201309180102-833290]

After download of the last ADT from the web site, it seems there&#39;s another problem.

With SDK Tools rev. 23 proguard is not installed, the folder SDK `dir/tools/proguard` is missing, and other tools are missing. This version contains several bugs.


Update Eclipse with Android development tools v. 23

I&#39;m updating my SDK Manager in Eclipse, and there are two new downloads:

Android L (API20, L Preview)

Android 4.4W (API20)

I&#39;m confused because they&#39;re both referred to as &quot;API 20&quot;.  And I&#39;m not sure what the &quot;W&quot; in &quot;4.4W&quot; is referring to.

What is the difference between Android 4.4W (API20) and Android L (API20, L Preview) in the SDK Manager?

So, seeing that the new Android L is out, I said I should give it a try. I installed the new ADT update from SDK tools and then from the updates. After Eclipse restart, I get the error that Android Dependencies failed to load because \android-sdk\tools\support\annotations.jar cannot be found. 

I checked the folder and it does not have the file.

Well, I said to myself that maybe the ADT update didn&#39;t go well so seeing that the new eclipse 4.4 is out I thought I could do a fresh install. So downloaded eclipse 4.4, installed the ADT tools and android sdk... and I get the same error.

Any ideas on how to fix this ?

Fail to find annotations.jar after updating to ADT 23

I am trying to use latest Gradle version (2.0), however I keep getting this message when hitting **gradle build** in terminal. Why is it asking for 1.10 version? I am new to Gradle, so I&#39;m trying to get my head around it.

**Gradle version 1.10 is required. Current version is 2.0**

Here are my dependencies (module build.gradle file):

    dependencies {
        classpath &#39;com.android.tools.build:gradle:0.12.+&#39;
        classpath fileTree(dir: &#39;build-libs&#39;, include: &#39;*.jar&#39;)
    }

...and wrapper task:

    task wrapper(type: Wrapper) {
        gradleVersion = &quot;2.0&quot;
    }


Also, I have set the distribution URL as follows (in the local.properties file):

    distributionUrl=https\://services.gradle.org/distributions/gradle-2.0-all.zip


The final thing is that in `File-&gt;Settings-&gt;Gradle`, I selected &quot;Use customizable gradle wrapper&quot;

`GRADLE_HOME` is set to C:\Program Files (x86)\Gradle\gradle-2.0

The build.gradle file:

    buildscript {

        repositories {
            mavenLocal()
            mavenCentral()
        }
    
        dependencies {
            classpath &#39;com.android.tools.build:gradle:0.12.+&#39;
            classpath fileTree(dir: &#39;build-libs&#39;, include: &#39;*.jar&#39;)
        }
    }

    
    task wrapper(type: Wrapper) {
        gradleVersion = &quot;2.0&quot;
    }


**UPDATE1**

As it stands i am using this Android Studio 1.1.0 with 1.1.0-rc1 plugin version 

        dependencies {
        classpath &#39;com.android.tools.build:gradle:1.1.0-rc1&#39;
    }

Gradle version is 2.3 in gradle-wrapper.properties

    distributionUrl=http\://services.gradle.org/distributions/gradle-2.3-all.zip


I have tried plugin version 1.1.0, but then it complains about *com.android.application*


**UPDATE 01/2016**

As it stands, i am using gradle 2.9 distribution in gradle - &gt; wrapper -&gt; gradle-wrapper.properties

    distributionUrl=https\://services.gradle.org/distributions/gradle-2.9-all.zip

and plugin is

    classpath &#39;com.android.tools.build:gradle:1.5.0&#39;

Gradle version 1.10 is required. Current version is 2.0

I try to write very simple application with hibernate validator:

my steps:

add following dependency in pom.xml:


    &lt;dependency&gt;
        &lt;groupId&gt;org.hibernate&lt;/groupId&gt;
        &lt;artifactId&gt;hibernate-validator&lt;/artifactId&gt;
        &lt;version&gt;5.1.1.Final&lt;/version&gt;
    &lt;/dependency&gt;

	

write code:

    class Configuration {
    	Range(min=1,max=100)
    	int threadNumber;
        //...
    	
    	public static void main(String[] args) {
    		ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
    
    		Validator validator = factory.getValidator();
    		
    		Configuration configuration = new Configuration();
    		configuration.threadNumber = 12;
                //...
    		
    		Set&lt;ConstraintViolation&lt;Configuration&gt;&gt; constraintViolations = validator.validate(configuration);
    		System.out.println(constraintViolations);
    
    	}
    }

	

And I gets following stacktrace:

    Exception in thread &quot;main&quot; javax.validation.ValidationException: Unable to instantiate Configuration.
    	at javax.validation.Validation$GenericBootstrapImpl.configure(Validation.java:279)
    	at javax.validation.Validation.buildDefaultValidatorFactory(Validation.java:110)
    	...
    	at org.hibernate.validator.internal.engine.ConfigurationImpl.&lt;init&gt;(ConfigurationImpl.java:110)
    	at org.hibernate.validator.internal.engine.ConfigurationImpl.&lt;init&gt;(ConfigurationImpl.java:86)
    	at org.hibernate.validator.HibernateValidator.createGenericConfiguration(HibernateValidator.java:41)
    	at javax.validation.Validation$GenericBootstrapImpl.configure(Validation.java:276)
    	... 2 more


What do I wrong?

javax.validation.ValidationException: HV000183: Unable to load &#39;javax.el.ExpressionFactory&#39;

I can&#39;t seem to be able to get Maven to use Java 1.8. Using 1.8 as the target turns up the following error:

    [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile
    (default-compile) on project csaro: Fatal error compiling: invalid target
    release: 1.8 -&gt; [Help 1]

The cause of the error is obvious enough: Maven isn&#39;t using the right version of Java:

    $ mvn -version
    Apache Maven 3.2.2 (45f7c06d68e745d05611f7fd14efb6594181933e; 2014-06-17T07:51:42-06:00)
    Maven home: /usr/local/Cellar/maven/3.2.2/libexec
    Java version: 1.7.0_51, vendor: Oracle Corporation
    Java home: /Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home/jre
    Default locale: en_US, platform encoding: UTF-8
    OS name: &quot;mac os x&quot;, version: &quot;10.9.2&quot;, arch: &quot;x86_64&quot;, family: &quot;mac&quot;

But the installed version of Java should be 1.8:

    $ java -version
    java version &quot;1.8.0_20-ea&quot;
    Java(TM) SE Runtime Environment (build 1.8.0_20-ea-b22)
    Java HotSpot(TM) 64-Bit Server VM (build 25.20-b21, mixed mode)

And JAVA_HOME is set:

    $ echo $JAVA_HOME
    /Library/Java/JavaVirtualMachines/jdk1.8.0_20.jdk/Contents/Home

I also tried the [command here](https://stackoverflow.com/questions/17824889/how-to-force-maven-3-1-to-use-right-version-of-java-on-mac-os-8-10) (which creates `mavenrc`). I&#39;ve tried restarting the computer several times, and have verified that the env var is correctly set (it&#39;s set in `.bash_profile`).

Maven was installed with Homebrew.

Java 1.8 is working fine in Eclipse (which is using m2e). I just can&#39;t get Maven to work on the command line.

Can&#39;t get Maven to recognize Java 1.8

I am using Maven 2.2.1 and to build my project I used this command

    mvn clean install -Dmaven.test.skip=true

However, the build failed saying it couldn&#39;t find one of the artifact. However, when I used:

    mvn clean install -DskipTests

everything worked fine. 

So far I have been thinking that these 2 commands are equivalent. However, [this link][1] seems to suggest that `-Dmaven.test.skip=true` also skips compiling the test cases.

However, that still didn&#39;t explain to me why one command is working and another is not. Will be thankful if anyone please explain this to me.

  [1]: http://maven.apache.org/surefire/maven-surefire-plugin/examples/skipping-test.html


Maven skip tests

I have a Gradle project I&#39;m using the **maven-publisher** plugin to install my android library to maven local and a maven repo.  

That works, but the generated pom.xml does not include any dependency information.  Is there a workaround to include that information, or am I forced to go back to the **maven** plugin and do all the manual configuration that requires?

----

Researching I realized that I&#39;m not telling the publication where the dependencies are, I&#39;m only specifying the output/artifact, so I need a way to link this [`MavenPublication`][1] to the dependencies, but I have not yet found how to do that in the documentation.

&lt;pre&gt;
------------------------------------------------------------
Gradle 1.10
------------------------------------------------------------

Build time:   2013-12-17 09:28:15 UTC
Build number: none
Revision:     36ced393628875ff15575fa03d16c1349ffe8bb6

Groovy:       1.8.6
Ant:          Apache Ant(TM) version 1.9.2 compiled on July 8 2013
Ivy:          2.2.0
JVM:          1.7.0_60 (Oracle Corporation 24.60-b09)
OS:           Mac OS X 10.9.2 x86_64
&lt;/pre&gt;

Relevant build.gradle sections
   
    //...
    apply plugin: &#39;android-library&#39;
    apply plugin: &#39;robolectric&#39;
    apply plugin: &#39;maven-publish&#39;
    
    //...
    repositories {
         mavenLocal()
         maven  {
             name &quot;myNexus&quot;
             url myNexusUrl
         }
         mavenCentral()
    }
    
    //...
    android.libraryVariants
    publishing {
        publications {
            sdk(MavenPublication) {
                artifactId &#39;my-android-sdk&#39;
                artifact &quot;${project.buildDir}/outputs/aar/${project.name}-${project.version}.aar&quot;
            }
        }
        repositories {
            maven  {
                name &quot;myNexus&quot;
                url myNexusUrl
                credentials {
                    username myNexusUsername
                    password myNexusPassword
                }
            }
        }
    }

Generated pom.xml:

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
    &lt;project xsi:schemaLocation=&quot;http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd&quot; xmlns=&quot;http://maven.apache.org/POM/4.0.0&quot;
        xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot;&gt;
      &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
      &lt;groupId&gt;org.example.android&lt;/groupId&gt;
      &lt;artifactId&gt;my-android-sdk&lt;/artifactId&gt;
      &lt;version&gt;gradle-SNAPSHOT&lt;/version&gt;
      &lt;packaging&gt;aar&lt;/packaging&gt;
    &lt;/project&gt;


  [1]: http://www.gradle.org/docs/current/groovydoc/org/gradle/api/publish/maven/MavenPublication.html

Content Type	Original Author	Original Content on Stackoverflow
Question	Ashish	View Question on Stackoverflow
Solution 1 - Java	Bohne	View Answer on Stackoverflow
Solution 2 - Java	Shahbaaz	View Answer on Stackoverflow

How do I enable index downloads in Eclipse for Maven dependency search?

Java Problem Overview

Java Solutions

Solution 1 - Java

Solution 2 - Java

Insert HTML with React Variable Statements (JSX)

What is ng-transclude?

Attributions