MAVEN-136: prevent the extraction of the portal-web archive

plugins/liferay-maven-plugin/src/main/java/com/liferay/maven/plugins/AbstractLiferayMojo.java

@@ -74,9 +74,10 @@ public void execute() throws MojoExecutionException {
 					"Liferay versions below 6.1.0 are not supported");
 			}
 
-			initPortalProperties();
-
-			initUtils();
+			if (Validator.isNull(extractPortalWeb) || !"false".equalsIgnoreCase(extractPortalWeb)) {
+				initPortalProperties();
+				initUtils();
+			}
 
 			doExecute();
 		}
@@ -645,6 +646,11 @@ protected ClassLoader toClassLoader(List<String> classPath)
 	 */
 	protected ArtifactResolver artifactResolver;
 
+	/**
+	 * @parameter expression="${extractPortalWeb}"
+	 */
+	protected String extractPortalWeb;
+
 	/**
 	 * @parameter expression="${liferayVersion}"
 	 */
@@ -693,4 +699,4 @@ protected ClassLoader toClassLoader(List<String> classPath)
 	private static Pattern _majorVersionPattern = Pattern.compile(
 		"(\\d+[.]\\d+)");
 
-}
+}