use try-with-resources statement in LookupWagonMojo (#2426)

Co-authored-by: Vincent Potucek <[email protected]>

Author: Pankraz76

its/core-it-support/core-it-plugins/maven-it-plugin-uses-wagon/src/main/java/org/apache/maven/plugin/coreit/LookupWagonMojo.java

@@ -92,21 +92,11 @@ public void execute() throws MojoExecutionException, MojoFailureException {
 
         getLog().info("[MAVEN-CORE-IT-LOG] Creating output file " + outputFile);
 
-        OutputStream out = null;
-        try {
-            outputFile.getParentFile().mkdirs();
-            out = new FileOutputStream(outputFile);
+        outputFile.getParentFile().mkdirs();
+        try (OutputStream out = new FileOutputStream(outputFile)) {
             loaderProperties.store(out, "MAVEN-CORE-IT-LOG");
         } catch (IOException e) {
-            throw new MojoExecutionException("Output file could not be created: " + outputFile, e);
-        } finally {
-            if (out != null) {
-                try {
-                    out.close();
-                } catch (IOException e) {
-                    // just ignore
-                }
-            }
+            throw new MojoExecutionException(e);
         }
 
         getLog().info("[MAVEN-CORE-IT-LOG] Created output file " + outputFile);