Easiest way I find is to:

 1. Right click project
    
 2. Debug as -&gt; Maven build **...**
    
 3. In the goals field put **-Dmaven.surefire.debug test**
    
 4. In the parameters put a new parameter called **forkCount** with a value
    of **0** (previously was forkMode=never but it is deprecated and doesn&#39;t work anymore)

Set your breakpoints down and run this configuration and it should hit the breakpoint.


if you are using Maven 2.0.8+, then it will be very simple,
run **mvndebug** from the console, and connect to it via Remote Debug Java Application with port 8000.


The Run/Debug configuration you&#39;re using is meant to let you run Maven on your workspace as if from the command line without leaving Eclipse.

Assuming your tests are JUnit based you should be able to debug them by choosing a source folder containing tests with the right button and choose `Debug as...` -&gt; `JUnit tests`.

probleme : unit test result are not the same runing with eclipse and maven due ti order of library used by eclipse and maven.
In my case the test was success with maven but i want to debug my unit test using eclipse, so 
the most easy way to debug unit test class with eclipse and runing maven is :
 
1) mvn -Dtest=MySuperClassTest -Dmaven.surefire.debug test ==&gt; it will listen to the 5005 port (default port)

2) Go to eclipse, open a debug configuration, add a new java remote application and change the port to 5005 and debug 

3) of course you must add break point somewhere in the class that you want to debug

I read it is ideal to represent sparse graphs by adjacency lists and dense graphs by an adjacency matrix. But I would like to understand the main difference between sparse and dense graphs. 

What is the distinction between sparse and dense graphs?

What does the following code do:

    WeatherWidget.prototype = new Widget;

where `Widget` is a constructor, and I want to extend the Widget &#39;class&#39; with a new function `WeatherWidget`.

What is the **`new`** keyword doing there and what would happen if it is left out? 

What is the reason to use the &#39;new&#39; keyword at Derived.prototype = new Base

I want to debug Eclipse build with tests. I tried to run it by Run &gt; Debug Configurations &gt; Maven Build. In Base directory is my Maven repo directory with pom.xml file, in goals &#39;clean install&#39;. When I click on debug Eclipse starts build, run tests but it doesn&#39;t stops on breakpoints.

Maven build debug in Eclipse

<p>I want to debug Eclipse build with tests. I tried to run it by Run > Debug Configurations > Maven Build. In Base directory is my Maven repo directory with pom.xml file, in goals 'clean install'. When I click on debug Eclipse starts build, run tests but it doesn't stops on breakpoints.</p>


I use the following code at the moment to assert on a `boolean` value, however the method `org.hamcrest.Matchers.is()` is deprecated.

    assertThat(someValue, is(false));

Is there a simple alternative syntax to test for boolean values without resorting to `assertTrue()` which gives you poor failure messages like &quot;java.lang.AssertionError&quot;

---
**Edit** after receiving comments/answers

My initial concerns were raised because Eclipse shows the following import statement as deprecated 

![enter image description here][1]

On viewing the [Hamcrest API](http://www.jarvana.com/jarvana/view/org/hamcrest/hamcrest-library/1.2.1/hamcrest-library-1.2.1-javadoc.jar!/org/hamcrest/Matchers.html) docs there are 3 overloaded variations of the `is()` method, only one of which is deprecated.

Therefore, to clarify the comment from @mark and the answer from @matt, the use of `is()` that I have posted above is valid and not deprecated.


  [1]: http://i.stack.imgur.com/2fvDL.png

What is the alternative to using the Deprecated Hamcrest method is()?

I would like to select only specific columns (ex. `SELECT a FROM b`). I have a generic DAO and what I came up with is:

    public List&lt;T&gt; getAll(boolean idAndVersionOnly) {
		CriteriaBuilder builder = manager.getCriteriaBuilder();
		CriteriaQuery&lt;T&gt; criteria = builder.createQuery(entityClazz);
		Root&lt;T&gt; root = criteria.from(entityClazz);
		if (idAndVersionOnly) {
			criteria.select(root.get(&quot;ID&quot;).get(&quot;VERSION&quot;)); // HERE IS ERROR
		} else {
			criteria.select(root);
		}
		return manager.createQuery(criteria).getResultList();
	}

And the error is:
`The method select(Selection&lt;? extends T&gt;) in the type CriteriaQuery&lt;T&gt; is not applicable for the arguments (Path&lt;Object&gt;)`. How should I change that? I want to get a type `T` object that has only `ID` and `VERSION` fields, and all others are `null`.

Type `T` extends `AbstractEntity` which has those 2 fields.

`entityClazz` is `T.class`.

JPA &amp; Criteria API - Select only specific columns

I have a requirement where if a record is inserted in a db table , then automatically a java process needs to be executed.What is the easiest way to implement a db listener ?

How to implement a db listener in Java

I would like to know how the `import` statement works.

I&#39;m asking this because I have the following `imports` in my project:

    import static com.googlecode.javacv.jna.highgui.cvCreateCameraCapture;
    import static com.googlecode.javacv.jna.highgui.cvGrabFrame;
    import static com.googlecode.javacv.jna.highgui.cvReleaseCapture;
    import com.googlecode.javacv.CanvasFrame;
    import com.googlecode.javacv.FrameGrabber;
    import com.colorfulwolf.webcamapplet.gui.ImagePanel;
    import com.googlecode.javacv.OpenCVFrameGrabber;
    import com.googlecode.javacv.jna.cxcore.IplImage;

I don&#39;t have these packages in my project, so, how will this be imported?

If I create a JAR file with all my classes, my server where will host this JAR file, has to be free Internet access to get these `package`?

I got some problem in my `Applet` that has these imports, and I&#39;m asking this question, to understand if can be an Internet rule.

    &lt;applet code=&quot;com.colorfulwolf.webcamapplet.WebcamApplet&quot;
    archive=&quot;http://san.redenetimoveis.com/teste.jar, http://san.redenetimoveis.com/core.jar, http://san.redenetimoveis.com/javacv.jar, http://san.redenetimoveis.com/javase.jar, http://san.redenetimoveis.com/jna.jar, http://san.redenetimoveis.com/customizer.jar, http://san.redenetimoveis.com/jmf.jar, http://san.redenetimoveis.com/mediaplayer.jar, http://san.redenetimoveis.com/multiplayer.jar, http://san.redenetimoveis.com/sound.jar&quot;
        height=&quot;550&quot; width=&quot;550&quot;&gt;
    &lt;/applet&gt;



How does Java import work?

First of all, I&#39;ve found a lot of threads on StackOverflow about this, but none of them really helped me, so sorry to ask possibly duplicate question.

I&#39;m running JUnit tests using spring-test, my code looks like this

    @RunWith(SpringJUnit4ClassRunner.class)  
    @ContextConfiguration(locations = {})
    public class StudentSystemTest {
    
    	@Autowired
    	private StudentSystem studentSystem;
    
        @Before
    	public void initTest() {
        // set up the database, create basic structure for testing
        }
    
        @Test
    	public void test1() {
        }    
        ...  
    }

My problem is that I want my tests to NOT influence other tests.
So I&#39;d like to create something like rollback for each test.
I&#39;ve searched a lot for this, but I&#39;ve found nothing so far.
I&#39;m using Hibernate and MySql for this

Rollback transaction after @Test

I get this error in Eclipse: Call requires API level 14 (current min is 8): android.app.ActionBar#setHomeButtonEnabled

This is code:

    if(android.os.Build.VERSION.SDK_INT&gt;=14) {
      	getActionBar().setHomeButtonEnabled(false);
    }

In Manifest:

    &lt;uses-sdk android:minSdkVersion=&quot;8&quot; android:targetSdkVersion=&quot;14&quot; /&gt;

How to remove this error?

How to remove &quot;Call requires API level&quot; error?

The new Microsoft [TypeScript][1] language (typed superset of JavaScript) seems very interesting, is there any alpha / incubator project that attempts to support it in Eclipse? Or is it too early to even wish for it


  [1]: http://www.typescriptlang.org/

Eclipse plugin for TypeScript?

In Eclipse, I got this error:

    run:
         [java] Error creating the server socket.
         [java] Oct 04, 2012 5:31:38 PM cascadas.ace.AceFactory bootstrap
         [java] SEVERE: Failed to create world : java.net.BindException: Address already in use: JVM_Bind
         [java] Java Result: -1
    BUILD SUCCESSFUL
    Total time: 10 seconds

I&#39;m not sure why it came up  now, but it ran fine just a few hours ago. Do I need to restart my machine? How do i get to the bottom of it? I appreciate any tips or advice.

How do I resolve the &quot;java.net.BindException: Address already in use: JVM_Bind&quot; error?

I&#39;m using eclipse checkstyle plugin with Juno Eclipse distribution. Anytime the code is checked for checkstyle error I get the following error: 

    cannot initialize module TreeWalker - Unable to instantiate DoubleCheckedLocking

Does anybody know how to fix this problem? Is it a plugin compatibility issue or something else?

Checkstyle Eclipse plugin doesn&#39;t work

I am new to eclipse and I am unable to view all the breakpoints that I have placed. I even tried Window --&gt; Show View --&gt; Breakpoints but that is also not working. 

How to view all the breakpoints in eclipse?

For example, I got a stack trace like this:

    java.lang.NullPointerException
	abc.investxa.presentation.controllers.UnixServerJobController.handleRequest(UnixServerJobController.java:66)
	org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:807)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

So what is the root cause of this exception?
From the stack trace, I found out that there is a problem with `doFilter` function in the `OncePerRequestFilter` class! However, when I put a break point there and the program never stop at that break point.

Could anyone give explanation about this!?
And in general case, how should I use that stack case for debugging (read from bottom to top or from top to bottom)!

How to read and understand the java stack trace?

### What is this?

This is a number of answers about warnings, errors, and notices you might encounter while programming PHP and have no clue how to fix them. This is also a Community Wiki, so everyone is invited to participate adding to and maintaining this list.

### Why is this?

Questions like [&quot;Headers already sent&quot;](https://stackoverflow.com/a/12770075) or [&quot;Calling a member of a non-object&quot;](https://stackoverflow.com/a/12769983) pop up frequently on Stack Overflow. The root cause of those questions is always the same. So the answers to those questions typically repeat them and then show the OP which line to change in their particular case. These answers do not add any value to the site because they only apply to the OP&#39;s particular code. Other users having the same error cannot easily read the solution out of it because they are too localized. That is sad because once you understood the root cause, fixing the error is trivial. Hence, this list tries to explain the solution in a general way to apply.

### What should I do here?

If your question has been marked as a duplicate of this one, please find your error message below and apply the fix to your code. The answers usually contain further links to investigate in case it shouldn&#39;t be clear from the general answer alone.

If you want to contribute, please add your &quot;favorite&quot; error message, warning or notice, one per answer, a short description what it means (even if it is only highlighting terms to their manual page), a possible solution or debugging approach and a listing of existing Q&amp;A that are of value. Also, feel free to improve any existing answers.

## The List

 * [Nothing is seen. The page is empty and white.](https://stackoverflow.com/a/12772851) (also known as *White Page/Screen Of Death*)
 * [Code doesn&#39;t run/what looks like parts of my PHP code are output](https://stackoverflow.com/a/24423272)
 * [Warning: Cannot modify header information - headers already sent](https://stackoverflow.com/a/12770075)
 * [Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given](https://stackoverflow.com/a/12770072) a.k.a.  
   [Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource](https://stackoverflow.com/a/12770072)
 * [Warning: *[function]* expects parameter 1 to be resource, boolean given](https://stackoverflow.com/a/14067623)
 * [Warning: *[function]*: failed to open stream: *[reason]*](https://stackoverflow.com/a/12820243)
 * [Warning: open_basedir restriction in effect](https://stackoverflow.com/a/12772244)
 * [Warning: Division by zero](https://stackoverflow.com/a/21507314)
 * [Warning: Illegal string offset &#39;XXX&#39;](https://stackoverflow.com/a/27678436)
 * [Warning: count(): Parameter must be an array or an object that implements Countable](https://stackoverflow.com/a/56011600)
 * [Parse error: syntax error, unexpected &#39;\[&#39;](https://stackoverflow.com/a/22316776)
 * [Parse error: syntax error, unexpected T_XXX](https://stackoverflow.com/a/12770089)
 * [Parse error:  syntax error, unexpected T_ENCAPSED_AND_WHITESPACE](https://stackoverflow.com/a/13935532)
 * [Parse error: syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM](https://stackoverflow.com/a/12770129)
 * [Parse error: syntax error, unexpected &#39;require_once&#39; (T_REQUIRE_ONCE), expecting function (T_FUNCTION)](https://stackoverflow.com/q/23726288)
 * [Parse error: syntax error, unexpected T_VARIABLE](https://stackoverflow.com/a/15539535)
 * [Fatal error: Allowed memory size of XXX bytes exhausted (tried to allocate XXX bytes)](https://stackoverflow.com/a/12770179)
 * [Fatal error: Call to a member function ... on a non-object or null](https://stackoverflow.com/a/12769983)
 * [Fatal Error: Call to Undefined function XXX](https://stackoverflow.com/a/12784048)
 * [Fatal Error: Cannot redeclare XXX](https://stackoverflow.com/a/13879461)
 * [Fatal error: Can&#39;t use function return value in write context](https://stackoverflow.com/a/12770530)
 * [Fatal error: Declaration of AAA::BBB() must be compatible with that of CCC::BBB()](https://stackoverflow.com/q/1885302)&#39;
 * [Return type of AAA::BBB() should either be compatible with CCC::BBB(), or the #[\ReturnTypeWillChange] attribute should be used](https://stackoverflow.com/q/71133749)
 * [Fatal error: Using $this when not in object context](https://stackoverflow.com/a/12770317)
 * [Fatal error: Object of class Closure could not be converted to string](https://stackoverflow.com/a/56658110)
 * [Fatal error: Undefined class constant](https://stackoverflow.com/a/59619392/1255289)
 * [Fatal error: Uncaught TypeError: Argument #n must be of type x, y given](https://stackoverflow.com/a/67781316)
 * [Notice: Array to string conversion](https://stackoverflow.com/a/24507107)
 * [Notice: Trying to get property of non-object error](https://stackoverflow.com/a/26572398)
 * [Notice: Undefined variable or property](https://stackoverflow.com/a/12778634)
 * [&quot;Notice: Undefined Index&quot;, or &quot;Warning: Undefined array key&quot;](https://stackoverflow.com/a/12770836)
 * [Notice: Undefined offset XXX](https://stackoverflow.com/a/21793407) [Reference]
 * [Notice: Uninitialized string offset: XXX](https://stackoverflow.com/a/17630869)
 * [Notice: Use of undefined constant XXX - assumed &#39;XXX&#39; / Error: Undefined constant XXX](https://stackoverflow.com/a/12773272)
 * [MySQL: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ... at line ...](https://stackoverflow.com/a/12771239)
 * [Strict Standards: Non-static method *[&amp;lt;class&gt;::&amp;lt;method&gt;]* should not be called statically](https://stackoverflow.com/a/21942832)
 * [Warning: function expects parameter X to be boolean/string/integer](https://stackoverflow.com/a/52771226)
 * [HTTP Error 500 - Internal server error](https://stackoverflow.com/a/53843354)
 * [Deprecated: Arrays and strings offset access syntax with curly braces is deprecated](https://stackoverflow.com/a/59158847)


Also, see:

- [Reference - What does this symbol mean in PHP?](https://stackoverflow.com/q/3737139)

Reference - What does this error mean in PHP?

Unable to open debugger port in intellij.
The port number 9009 matches the one which has been set in the configuration file for the application.

    &lt;java-config debug-options=&quot;-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=9009&quot; system-classpath=&quot;&quot; native-library-path-prefix=&quot;D:\Project\lib\windows\64bit&quot; classpath-suffix=&quot;&quot;&gt;
        &lt;jvm-options&gt;-XX:MaxPermSize=192m&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-client&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-XX:+UnlockDiagnosticVMOptions&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-XX:+LogVMOutput&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-XX:LogFile=${com.sun.aas.instanceRoot}/logs/jvm.log&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Djava.endorsed.dirs=${com.sun.aas.installRoot}/modules/endorsed${path.separator}${com.sun.aas.installRoot}/lib/endorsed&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Djava.security.policy=${com.sun.aas.instanceRoot}/config/server.policy&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Djava.security.auth.login.config=${com.sun.aas.instanceRoot}/config/login.conf&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Dcom.sun.enterprise.security.httpsOutboundKeyAlias=s1as&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Djavax.net.ssl.keyStore=${com.sun.aas.instanceRoot}/config/keystore.jks&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Djavax.net.ssl.trustStore=${com.sun.aas.instanceRoot}/config/cacerts.jks&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Djava.ext.dirs=${com.sun.aas.javaRoot}/lib/ext${path.separator}${com.sun.aas.javaRoot}/jre/lib/ext${path.separator}${com.sun.aas.instanceRoot}/lib/ext&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Djdbc.drivers=org.apache.derby.jdbc.ClientDriver&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-DANTLR_USE_DIRECT_CLASS_LOADING=true&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Dcom.sun.enterprise.config.config_environment_factory_class=com.sun.enterprise.config.serverbeans.AppserverConfigEnvironmentFactory&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Dosgi.shell.telnet.port=4766&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Dosgi.shell.telnet.maxconn=1&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Dosgi.shell.telnet.ip=127.0.0.1&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Dfelix.fileinstall.dir=${com.sun.aas.installRoot}/modules/autostart/&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Dfelix.fileinstall.poll=5000&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Dfelix.fileinstall.debug=1&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Dfelix.fileinstall.bundles.new.start=true&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Dorg.glassfish.web.rfc2109_cookie_names_enforced=false&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-XX:NewRatio=2&lt;/jvm-options&gt;
        &lt;jvm-options&gt;-Xmx2048m&lt;/jvm-options&gt;
      &lt;/java-config&gt;

Configuration in IntelliJ:

![enter image description here][1]

When I try and enable the remote debugging in for this application it comes up with the following error:
![enter image description here][2]


  [1]: http://i.stack.imgur.com/pX1N4.png
  [2]: http://i.stack.imgur.com/7ePT8.png

Unable to open debugger port in IntelliJ

When debugging in chrome, the scripts are always paused in the debugger even if there are no break points set, and if the the pause is un-paused, it again pauses itself.

What can be done? 

Paused in debugger in chrome?

I often debug my javascript code using the Chrome web debugger. In the elements tab, hovering over an element show a tooltip with a few pieces of information, including the width and the height of that element.

Sometimes, I need to see the page coordinates of the current mouse position. But it seems the debugger does not display this kind of information.

So, is there a way to add it? Like an extension or maybe there are other options?

**EDIT**

Using the accepted answer I could add the following bookmarklet and have exactly what I wanted:

    javascript:document.onmousemove = function(e){var x = e.pageX;var y = e.pageY;e.target.title = &quot;X is &quot;+x+&quot; and Y is &quot;+y;};

Is there a way to tell Chrome web debugger to show the current mouse position in page coordinates?

The development machine cannot access the internet, and take about 60s to timeout. When I try to build, I see 

    Downloading: http://repo.maven.apache.org/maven2/com/google/gsa-connector/2.8.0/gsa-connector-2.8.0.pom


However, I have the following in my POM:


        &lt;repository&gt;
          &lt;id&gt;bb-nexus&lt;/id&gt;
          &lt;url&gt;http://repo.dev.bloomberg.com/content/groups/public&lt;/url&gt;
          &lt;releases&gt;&lt;enabled&gt;true&lt;/enabled&gt;&lt;/releases&gt;
          &lt;snapshots&gt;&lt;enabled&gt;true&lt;/enabled&gt;&lt;/snapshots&gt;
        &lt;/repository&gt;
        &lt;repository&gt;
          &lt;id&gt;nexus-3rdparty&lt;/id&gt;
          &lt;url&gt;http://repo.dev.bloomberg.com/content/repositories/thirdparty/&lt;/url&gt;
          &lt;releases&gt;&lt;enabled&gt;true&lt;/enabled&gt;&lt;/releases&gt;
          &lt;snapshots&gt;&lt;enabled&gt;true&lt;/enabled&gt;&lt;/snapshots&gt;
        &lt;/repository&gt;


It always tries to go to repo.maven first. I even tried to add to D:\\.m2\settings.xml

    &lt;settings&gt;
      &lt;mirrors&gt;
        &lt;mirror&gt;
          &lt;!--This sends everything else to /public --&gt;
          &lt;id&gt;nexus&lt;/id&gt;
          &lt;mirrorOf&gt;*&lt;/mirrorOf&gt;
          &lt;url&gt;http://repo.dev.bloomberg.com/content/groups/public&lt;/url&gt;
        &lt;/mirror&gt;
      &lt;/mirrors&gt;

based on http://maven.apache.org/guides/mini/guide-mirror-settings.html yet it continues to try repo.maven first. I&#39;m using Apache Maven 3.0.4 (r1232337; 2012-01-17 03:44:56-0500)

I can&#39;t use -o because it still needs to access the local repo.dev.

---------
Here is with &#39;effective-settings&#39;:

    D:\Users\chloe\Projects\team\confluence-plugin&gt;mvn help:effective-settings
    [INFO] Scanning for projects...
    Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-install-plugin/maven-metadata.xml
    [WARNING] Could not transfer metadata org.apache.maven.plugins:maven-install-plugin/maven-metadata.xml from/to central (
    http://repo.maven.apache.org/maven2): Connection to http://repo.maven.apache.org refused
    ...
    [INFO]
    [INFO] --- maven-help-plugin:2.1.1:effective-settings (default-cli) @ bb-confluence-plugin ---
    [INFO]
    Effective user-specific configuration settings:
    
    &lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
    ...
    &lt;settings xmlns=&quot;http://maven.apache.org/POM/4.0.0&quot; xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot; xsi:schemaLoca
    tion=&quot;http://maven.apache.org/SETTINGS/1.1.0 http://maven.apache.org/xsd/settings-1.1.0.xsd&quot;&gt;
      &lt;localRepository xmlns=&quot;http://maven.apache.org/SETTINGS/1.1.0&quot;&gt;d:\.m2\repository&lt;/localRepository&gt;
      &lt;pluginGroups xmlns=&quot;http://maven.apache.org/SETTINGS/1.1.0&quot;&gt;
        &lt;pluginGroup&gt;org.apache.maven.plugins&lt;/pluginGroup&gt;
        &lt;pluginGroup&gt;org.codehaus.mojo&lt;/pluginGroup&gt;
      &lt;/pluginGroups&gt;
    &lt;/settings&gt;
    
    [INFO] ------------------------------------------------------------------------






How do you stop maven from trying to access http://repo.maven.apache.org?

I have a Gradle project and I need all its dependencies to be transferred and used with another Maven project. In other words how can I generate (or can I generate) the pom.xml from the build.gradle?

Gradle build.gradle to Maven pom.xml

I have a set of projects which all need to run the same series of Maven plugin executions during their builds.  I&#39;d like to avoid re-declaring all of this configuration in every project, so I made them all inherit from a parent pom &quot;template&quot; project which only contains those plugin executions (8 different mojos).  But I want those plugin executions to only run on the child projects and not on the parent project during Maven builds.

I&#39;ve tried to accomplish this four different ways, each with a side-effect I don&#39;t like.

 1. Declare the plugin executions in the parent pom&#39;s `build/plugins` element and use properties-maven-plugin to [turn on the `skip` properties on other plugins][1] in the parent project.  This didn&#39;t work because one of the plugin goals (maven-dependency-plugin:build-classpath) doesn&#39;t have a `skip` property.

 1. Declare the plugin executions in the parent pom&#39;s `build/pluginManagement` element.  Unfortunately this requires me to redeclare each of the eight plugins in the `build/plugins` element of every child project&#39;s pom like:

        &lt;plugin&gt;
            &lt;artifactId&gt;maven-assembly-plugin&lt;/artifactId&gt;
        &lt;/plugin&gt;
        ...

    This is too repetitive, and problematic if I ever need to change the plugins in the template pom.

 1. Declare the plugin executions in a profile in the parent pom which is activated by the _lack_ of a `nobuild.txt` file (which does exist in the parent pom, so the plugins don&#39;t execute there):

        &lt;profiles&gt;
            &lt;profile&gt;
                &lt;activation&gt;
                    &lt;file&gt;
                        &lt;missing&gt;nobuild.txt&lt;/missing&gt;
                    &lt;/file&gt;
                &lt;/activation&gt;
                &lt;build&gt;
                    ....
                &lt;/build&gt;
            &lt;/profile&gt;
        &lt;/profiles&gt;

    This works for the most part, except that the file path in the `missing` element seems to be based on the _current working directory_ instead of the project basedir.  This breaks some of the multimodule builds I&#39;d like to be able to do.  **Edit:** to clarify, the parent &quot;template&quot; project is actually itself a module in a multimodule project, and the build breaks when I try, for instance, to do a `mvn install` on the root.  The project structure looks like:

        + job
        |- job-core
        |- job-template
        |- job1                   inherits from job-template
        |- job2                   inherits from job-template

 1. Set up a custom lifecycle and packaging.  This seems to allow me to bind plugins to lifecycle phases, [but not specify any configuration][2].

So, is there another way to specify a bunch of Maven plugin executions that can be reused across several projects (with minimal repetition in each of those projects&#39; poms)?


  [1]: http://maven.40175.n5.nabble.com/Execution-of-plugin-in-child-poms-and-not-in-current-pom-tp4666403p4685295.html
  [2]: http://maven.40175.n5.nabble.com/writing-a-parent-pom-that-does-not-execute-its-plugins-tp4913346p4919168.html

Define Maven plugins in parent pom, but only invoke plugins in child projects

I have a Maven project which generates a jar file and copies all dependencies to `target/lib` folder.  I want to execute this project on client&#39;s machine (windows).  So, I copied `myproject.jar` to `C:\xyz` folder and all dependencies to `C:\xyz\lib` folder.  How do I execute this project from client&#39;s command prompt?
I tried to use `java -cp lib\*.jar -jar myproject.jar` from `C:\xyz` folder but it throws following error.

    Exception in thread &quot;main&quot; java.lang.NoClassDefFoundError: lib\commons-codec-1/3/jar
    Caused by: java.lang.ClassNotFoundException: lib\commons-codec-1.3.jar
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
    Could not find the main class: lib\commons-codec-1.3.jar.  Program will exit.

I think if I specify all dependencies in classpath (like `java -cp lib\dep1.jar;dep2.jar`), it will get rid of the problem but I don&#39;t want to do this as I have 40 libraries already and it might grow in future releases.  Is there a better way to do this?

Execute jar file with multiple classpath libraries from command prompt

I&#39;ve searched up and down the internet for this one. There&#39;s lots of half-answers out there, to do with Maven properties such as `${sonar.jacoco.reportPath}`, or `org.jacoco:jacoco-maven-plugin:prepare-agent` or setting `maven-surefire-plugin` `argLine` with `-javaagent`.

Some how, none of these answers, either on their own, or in combination, are producing what I&#39;m after:
A coverage report which shows a class as covered if it is used in tests higher up the stack, such as entities being used by DAOs, even though it was not fully covered by tests in its own module.

Is there a definitive config somewhere, to achieve this, please?


Content Type	Original Author	Original Content on Stackoverflow
Question	Maciej Laskowski	View Question on Stackoverflow
Solution 1 - Java	alex.p	View Answer on Stackoverflow
Solution 2 - Java	Rajesh	View Answer on Stackoverflow
Solution 3 - Java	Nicola Musatti	View Answer on Stackoverflow
Solution 4 - Java	Mohamed Chaabani	View Answer on Stackoverflow

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