Dynamic Web Module 3.0 requires Java 1.6 or newer

The new Maven project, marker has this problem

Copy and paste the following in porm.xml

<build>
		<plugins>
			<!-- define the project compile level -->
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>2.3.2</version>
				<configuration>
					<source>1.7</source>
					<target>1.7</target>
				</configuration>
			</plugin>
		</plugins>
	</build>

Then Use maven update project, Done!