Kept the portsecurityenabled property as undefined

core/src/main/java/org/openstack4j/model/network/Port.java

@@ -59,7 +59,7 @@ public interface Port extends Resource, Buildable<PortBuilder> {
   /**
    * @return The port security status. A valid value is enabled (true) or disabled (false).
    */
-  boolean isPortSecurityEnabled();
+  Boolean isPortSecurityEnabled();
 
 
 }

core/src/main/java/org/openstack4j/model/network/builder/PortBuilder.java

@@ -102,7 +102,7 @@ public interface PortBuilder extends Builder<PortBuilder, Port> {
 
 	PortBuilder securityGroup(String groupName);
 
-	PortBuilder portSecurityEnabled(boolean portSecurityEnabled); 
+	PortBuilder portSecurityEnabled(Boolean portSecurityEnabled); 
 
 
 }

core/src/main/java/org/openstack4j/openstack/networking/domain/NeutronPort.java

@@ -69,7 +69,7 @@ public class NeutronPort implements Port {
 	private List<NeutronExtraDhcpOptCreate> extraDhcpOptCreates;
 
 	@JsonProperty("port_security_enabled")
-	private boolean portSecurityEnabled = true; 
+	private Boolean portSecurityEnabled; 
 
 	public static PortBuilder builder() {
 		return new PortConcreteBuilder();
@@ -204,7 +204,7 @@ public void setTenantId(String tenantId) {
      * {@inheritDoc}
      */
     @Override
-    public boolean isPortSecurityEnabled() {
+    public Boolean isPortSecurityEnabled() {
         return portSecurityEnabled;
     }
 
@@ -364,14 +364,14 @@ public PortBuilder extraDhcpOpt(ExtraDhcpOptCreate extraDhcpOptCreate) {
 		@Override
 		public PortBuilder securityGroup(String groupName) {
 			if(m.securityGroups==null){
-				m.securityGroups = new ArrayList<String>();
+				m.securityGroups = new ArrayList<>();
 			}
 			m.securityGroups.add(groupName);
 			return this;
 		}
 
         @Override
-        public PortBuilder portSecurityEnabled(boolean portSecurityEnabled) {
+        public PortBuilder portSecurityEnabled(Boolean portSecurityEnabled) {
             m.portSecurityEnabled=portSecurityEnabled;
             return this;
         }

core/src/main/java/org/openstack4j/openstack/networking/domain/NeutronPortCreate.java

@@ -44,7 +44,7 @@ public class NeutronPortCreate implements ModelEntity {
 	private List<String> securityGroups;
 
     @JsonProperty("port_security_enabled")
-    private boolean portSecurityEnabled; 
+    private Boolean portSecurityEnabled; 
 
 	public NeutronPortCreate() {
 	}