diff --git a/build-common.xml b/build-common.xml
index c88767bc06e005..aba12035531508 100644
--- a/build-common.xml
+++ b/build-common.xml
@@ -359,7 +359,7 @@ Please set the environment variable ANT_OPTS to the recommended value of
 			fork="true"
 			newenvironment="true"
 		>
-			<jvmarg value="-Xmx128m" />
+			<jvmarg value="-Xmx512m" />
 			<arg value="javadoc.base.dir=${basedir}" />
 			<arg value="javadoc.init=${init}" />
 			<arg value="javadoc.limit=${limit}" />
diff --git a/portal-impl/build.xml b/portal-impl/build.xml
index d46c98e0f090ba..00403742d6071a 100644
--- a/portal-impl/build.xml
+++ b/portal-impl/build.xml
@@ -1112,7 +1112,7 @@ public class Creole10Parser]]></replacevalue>
 		</if>
 
 		<copy todir="${portal-impl.classes.dir}">
-			<fileset dir="src" excludes="**/*.java" />
+			<fileset dir="src" excludes="**/*.java,**/META-INF/javadocs-*.xml" />
 		</copy>
 	</target>