Align application args with the RCP

Signed-off-by: Alexander Diewald <diewald@fortiss.org>

pom.xml

-<project xmlns="http://maven.apache.org/POM/4.0.0"
-  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
-  http://maven.apache.org/maven-v4_0_0.xsd">
-
-  <modelVersion>4.0.0</modelVersion>
-  <artifactId>org.fortiss.af3.product.tests</artifactId>
-  <groupId>org.fortiss.af3.product.tests</groupId>
-  <packaging>pom</packaging>
-
-  <parent>
-    <groupId>org.fortiss.af3.tests</groupId>
-    <artifactId>org.fortiss.af3.tests</artifactId>
-    <version>1.0.0-SNAPSHOT</version>
-    <relativePath>../pom.xml</relativePath>
-  </parent>
-
-  <modules>
-    <module>org.fortiss.af3.phoenix.product.tests</module>
-  </modules>
-
-  <!-- NOTE: The surefire testing spec is placed here (and not in submodules) such that dependencies
-             of the testing plugin are automatically included via the Manifest.MF file and the
-             pomless build extension. -->
-  <build>
-    <plugins>
-      <plugin>
-        <groupId>org.eclipse.tycho</groupId>
-        <artifactId>tycho-surefire-plugin</artifactId>
-        <version>${tycho-version}</version>
-        <configuration>
-          <useUIHarness>true</useUIHarness>
-          <useUIThread>true</useUIThread>
-          <product>org.fortiss.af3.rcp.application.product</product>
-          <application>org.fortiss.af3.rcp.application.af3app</application>
-          <argLine>-Xms256m -Xmx1024m -Dosgi.framework.extensions=org.eclipse.fx.osgi</argLine>
-          <includes>
-            <include>af3/**/AllTests.java</include>
-          </includes>
-        </configuration>
-      </plugin>
-    </plugins>
-  </build>
-
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
+  http://maven.apache.org/maven-v4_0_0.xsd">
+
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>org.fortiss.af3.product.tests</artifactId>
+  <groupId>org.fortiss.af3.product.tests</groupId>
+  <packaging>pom</packaging>
+
+  <parent>
+    <groupId>org.fortiss.af3.tests</groupId>
+    <artifactId>org.fortiss.af3.tests</artifactId>
+    <version>1.0.0-SNAPSHOT</version>
+    <relativePath>../pom.xml</relativePath>
+  </parent>
+
+  <modules>
+    <module>org.fortiss.af3.phoenix.product.tests</module>
+  </modules>
+
+  <!-- NOTE: The surefire testing spec is placed here (and not in submodules) such that dependencies
+             of the testing plugin are automatically included via the Manifest.MF file and the
+             pomless build extension. -->
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.eclipse.tycho</groupId>
+        <artifactId>tycho-surefire-plugin</artifactId>
+        <version>${tycho-version}</version>
+        <configuration>
+          <useUIHarness>true</useUIHarness>
+          <useUIThread>true</useUIThread>
+          <product>org.fortiss.af3.rcp.application.product</product>
+          <application>org.fortiss.af3.rcp.application.af3app</application>
+          <argLine>-Dosgi.framework.extensions=org.eclipse.fx.osgi -Xmx2048m -Xss32m</argLine>
+          <includes>
+            <include>af3/**/AllTests.java</include>
+          </includes>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+
 </project>
\ No newline at end of file