Use getIfNull correctly

Author: maths22

src/main/java/io/github/fvarrui/javapackager/maven/PackageMojo.java

@@ -352,7 +352,7 @@ public void execute() throws MojoExecutionException {
 						.additionalModulePaths(additionalModulePaths)
 						.additionalResources(additionalResources)
 						.administratorRequired(administratorRequired)
-						.arch(getIfNull(arch, Arch.getDefault()))
+						.arch(getIfNull(arch, Arch::getDefault))
 						.assetsDir(assetsDir)
 						.bundleJre(bundleJre)
 						.classpath(classpath)
@@ -404,11 +404,11 @@ public void execute() throws MojoExecutionException {
 		} catch (Exception e) {
 
 			throw new MojoExecutionException(e.getMessage(), e);
-			
+
 		}
 
 
 	}
 
-	
+
 }

src/main/java/io/github/fvarrui/javapackager/model/LinuxConfig.java

@@ -94,7 +94,7 @@ public String toString() {
 	 */
 	public void setDefaults(Packager packager) {
 		this.setCategories((categories == null || categories.isEmpty()) ? Collections.singletonList("Utility") : categories);
-		this.setInstallationPath(ObjectUtils.getIfNull(installationPath, "/opt"));
+		this.setInstallationPath(ObjectUtils.getIfNull(installationPath,  () -> "/opt"));
 	}
 
 }

src/main/java/io/github/fvarrui/javapackager/model/MacConfig.java

@@ -305,16 +305,16 @@ public String toString() {
 	 * @param packager Packager
 	 */
 	public void setDefaults(Packager packager) {
-		this.setWindowX(getIfNull(this.getWindowX(), 10));
-		this.setWindowY(getIfNull(this.getWindowY(), 60));
-		this.setWindowWidth(getIfNull(this.getWindowWidth(), 540));
-		this.setWindowHeight(getIfNull(this.getWindowHeight(), 360));
-		this.setIconSize(getIfNull(this.getIconSize(), 128));
-		this.setTextSize(getIfNull(this.getTextSize(), 16));
-		this.setIconX(getIfNull(this.getIconX(), 52));
-		this.setIconY(getIfNull(this.getIconY(), 116));
-		this.setAppsLinkIconX(getIfNull(this.getAppsLinkIconX(), 360));
-		this.setAppsLinkIconY(getIfNull(this.getAppsLinkIconY(), 116));
-		this.setAppId(getIfNull(this.getAppId(), packager.getMainClass()));
+		this.setWindowX(getIfNull(this.getWindowX(), () -> 10));
+		this.setWindowY(getIfNull(this.getWindowY(), () -> 60));
+		this.setWindowWidth(getIfNull(this.getWindowWidth(), () -> 540));
+		this.setWindowHeight(getIfNull(this.getWindowHeight(), () -> 360));
+		this.setIconSize(getIfNull(this.getIconSize(), () -> 128));
+		this.setTextSize(getIfNull(this.getTextSize(), () -> 16));
+		this.setIconX(getIfNull(this.getIconX(), () -> 52));
+		this.setIconY(getIfNull(this.getIconY(), () -> 116));
+		this.setAppsLinkIconX(getIfNull(this.getAppsLinkIconX(), () -> 360));
+		this.setAppsLinkIconY(getIfNull(this.getAppsLinkIconY(), () -> 116));
+		this.setAppId(getIfNull(this.getAppId(), packager::getMainClass));
 	}
 }