Add GWT maven build properties to module.gwt.xml from maven. I wanted to speed up the build by specifying specific binding properties.

module.gwt.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 2.8.1//EN"
  "http://gwtproject.org/doctype/2.8.1/gwt-module.dtd">
<module rename-to='explorer'>
  <!-- ... -->
  
  <!-- The property below is replaced from maven profile mvn install -Pfast-build -->
  <!--{profile.fast.build}-->
</module>

pom.xml

<!-- Incomplete pom.xml -->

<!-- Define a profile in the pom.xml -->
<profile>
  <id>fast-build</id>
  <properties>
    <profile.fast.build>
      &lt;set-property name="user.agent" value="safari" /&gt;
      &lt;set-property name="gxt.user.agent" value="chrome" /&gt;
      &lt;set-property name="gxt.device" value="desktop" /&gt;
      &lt;set-property name="gxt.theme" value="triton" /&gt;
    </profile.fast.build>
  </properties>
  <build>
    <resources>
      <resource>
        <directory>src/main/java</directory>
        <filtering>true</filtering>
        <includes>
          <!-- only filter gwt.xml module descriptors -->
          <include>**/*.gwt.xml</include>
        </includes>
      </resource>
    </resources>
    
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-resources-plugin</artifactId>
        <version>3.0.2</version>
        <configuration>
          <encoding>UTF-8</encoding>
          <!-- Define a custom delimiter for property replacement in the module.gwt.xml file -->
          <delimiters>&lt;!--{*}--&gt;</delimiters>
        </configuration>
      </plugin>
    </plugins>
  </build>
</profile>

I run it with mvn clean install -Pfast-build

Optional handy parameters and some can speed a compile too.

<configuration>
  <compileReport>true</compileReport> <!-- Used for debugging build -->
  <compilerMetrics>true</compilerMetrics> <!-- Used for debugging build -->
  <draftCompile>true</draftCompile>
  <maven.javadoc.skip>true</maven.javadoc.skip>
</configuration>

Hey mate, thank you for sharing! It worked great here.

Just a small correction at line 34: <delimiters><delimiter>&lt;!--{*}--&gt;</delimiter></delimiters>