[ONOS-5724],[ONOS-5725],[ONOS-5736] onos buck plugin modifications for support of private package property.

Change-Id: Ic3a2f13c14816e803debc208826445ef27b49a4f
diff --git a/tools/build/buck-plugin/src/main/java/org/onosproject/onosjar/OnosJarDescription.java b/tools/build/buck-plugin/src/main/java/org/onosproject/onosjar/OnosJarDescription.java
index 6ba61cf..620182b 100644
--- a/tools/build/buck-plugin/src/main/java/org/onosproject/onosjar/OnosJarDescription.java
+++ b/tools/build/buck-plugin/src/main/java/org/onosproject/onosjar/OnosJarDescription.java
@@ -34,7 +34,6 @@
 import com.facebook.buck.model.Flavor;
 import com.facebook.buck.model.Flavored;
 import com.facebook.buck.model.ImmutableFlavor;
-import com.facebook.buck.model.Pair;
 import com.facebook.buck.parser.NoSuchBuildTargetException;
 import com.facebook.buck.rules.BuildRule;
 import com.facebook.buck.rules.BuildRuleParams;
@@ -58,8 +57,6 @@
 
 import java.nio.file.Path;
 import java.util.List;
-import java.util.function.BinaryOperator;
-import java.util.stream.Collectors;
 
 import static com.facebook.buck.jvm.common.ResourceValidator.validateResources;
 
@@ -250,7 +247,8 @@
                                                            args.apiPackage, args.apiDescription, args.resources,
                                                            args.groupId, args.bundleName, args.bundleVersion,
                                                            args.bundleLicense, args.bundleDescription, args.importPackages,
-                                                           args.exportPackages, includedResourcesString, args.dynamicimportPackages),
+                                                           args.exportPackages, includedResourcesString,
+                                                           args.dynamicimportPackages, args.privatePackages),
                                     args.resourcesRoot,
                                     args.manifestFile,
                                     args.mavenCoords,
@@ -327,6 +325,7 @@
         public Optional<String> bundleDescription;
 
         public Optional<String> importPackages;
+        public Optional<String> privatePackages;
         public Optional<String> exportPackages;
         public Optional<ImmutableSortedMap<String, SourcePath>> includeResources;
         public Optional<String> dynamicimportPackages;