maven : property-management. Here is how I manage my properties in a multi-module project with maven. See http://geowarin.wordpress.com/2013/01/23/a-proposition-for-managing-centralized-resources-with-maven

property-management-snippet.xml

<build>
  	<resources>
			<resource>
				<directory>../modular-parent/dev-resources</directory>
			</resource>
		</resources>
		<testResources>
			<testResource>
				<directory>../modular-parent/test-resources</directory>
			</testResource>
		</testResources>
	</build>

	<profiles>
		<profile>
			<id>prod</id>
			<build>
				<plugins>
					<plugin>
						<artifactId>maven-resources-plugin</artifactId>
						<executions>
							<execution>
								<id>copy-prod-resources</id>
								<phase>process-resources</phase>
								<goals>
									<goal>copy-resources</goal>
								</goals>
								<configuration>
									<overwrite>true</overwrite>
									<outputDirectory>${basedir}/target/classes</outputDirectory>
									<resources>
										<resource>
											<directory>../modular-parent/prod-resources</directory>
										</resource>
									</resources>
								</configuration>
							</execution>
						</executions>
					</plugin>
				</plugins>
			</build>
		</profile>
	</profiles>