Release 0.0.4. This should fix #2. The project member variable was in AbstractCreateMojo and FlatkpakMojo. Only one of these would be injected.

Author: brett-smith

README.md

@@ -174,6 +174,10 @@ In which case you can just do `mvn clean package`.
 
 ## Changes
 
+### 0.0.4
+
+ * Fix [NPE](https://github.com/bithatch/maven-flatpak-plugin/issues/2).
+
 ### 0.0.3
 
  * Support the complete manifest  in `<manifest>`. 

pom.xml

@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>uk.co.bithatch</groupId>
 	<artifactId>flatpak-maven-plugin</artifactId>
-	<version>0.0.3</version>
+	<version>0.0.4</version>
 	<packaging>maven-plugin</packaging>
 	<name>Flatpak Maven Plugin</name>
 	<properties>

src/main/java/uk/co/bithatch/maven/flatpak/plugin/AbstractCreateMojo.java

@@ -50,7 +50,7 @@ public abstract class AbstractCreateMojo extends AbstractMojo {
 	private boolean skip;
 
 	@Parameter(required = true, readonly = true, property = "project")
-	private MavenProject project;
+	protected MavenProject project;
 
 	@Parameter(defaultValue = "${project.build.sourceDirectory}/flatpak", required = true)
 	protected File flatpakDataDirectory;
@@ -86,12 +86,15 @@ public abstract class AbstractCreateMojo extends AbstractMojo {
 	private String categories;
 
 	@Parameter
+	@Deprecated
 	private String runtime;
 
 	@Parameter
+	@Deprecated
 	private String runtimeVersion;
 
 	@Parameter
+	@Deprecated
 	private String sdk;
 
 	protected Module appModule;

src/main/java/uk/co/bithatch/maven/flatpak/plugin/FlatpakMojo.java

@@ -51,9 +51,6 @@ public class FlatpakMojo extends AbstractCreateMojo {
 	@Parameter
 	private List<String> excludeArtifacts;
 
-	@Parameter(required = true, readonly = true, property = "project")
-	private MavenProject project;
-
 	@Parameter()
 	private boolean includeProject = true;