How to display maven properties in Eclipse?

Question

How to display maven properties in Eclipse?

The pom below, based on antrun plugin is not work:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>Test_DisplayMavenVariables</groupId>
    <artifactId>Test_DisplayMavenVariables</artifactId>
    <version>0.0.1-SNAPSHOT</version>


    <properties>
        <testproperty>This is a test property</testproperty>
    </properties>
    <build>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-antrun-plugin</artifactId>
                    <version>1.1</version>
                    <executions>
                        <execution>
                            <phase>validate</phase>
                            <goals>
                                <goal>run</goal>
                            </goals>
                            <configuration>
                                <tasks>
                                    <echo>Displaying value of 'testproperty' property</echo>
                                    <echo>[testproperty] ${testproperty}</echo>
                                </tasks>
                            </configuration>
                        </execution>
                    </executions>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>

</project>

UPDATE

If ran to goal "validate", the output is following:

[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building Test_DisplayMavenVariables 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.110s
[INFO] Finished at: Sun Mar 23 15:22:00 MSK 2014
[INFO] Final Memory: 4M/183M
[INFO] ------------------------------------------------------------------------

Answer 1

You have put the antrun definition inside a pluginManagement block.

pluginManagement means: "if someone uses this plugin, he will do it in the following way..."

In your example, no one uses the plugin, since there is no normal plugin definition. Remove <pluginManagement> and </pluginManagement> from your pom, and it will work.