maven install deploy tell us heap is full

<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.1</version>
				<configuration>
					<source>${jdk.version}</source>
					<target>${jdk.version}</target>
					<showWarnings>true</showWarnings>
					<fork>true</fork>
					<meminitial>512m</meminitial>
					<maxmem>1048m</maxmem>
				</configuration>
			</plugin>