diff --git a/its/core-it-support/core-it-plugins/maven-it-plugin-context-passing/src/main/java/org/apache/maven/plugin/coreit/CatchMojo.java b/its/core-it-support/core-it-plugins/maven-it-plugin-context-passing/src/main/java/org/apache/maven/plugin/coreit/CatchMojo.java
index 65a38789155a..b0789f3a54f7 100644
--- a/its/core-it-support/core-it-plugins/maven-it-plugin-context-passing/src/main/java/org/apache/maven/plugin/coreit/CatchMojo.java
+++ b/its/core-it-support/core-it-plugins/maven-it-plugin-context-passing/src/main/java/org/apache/maven/plugin/coreit/CatchMojo.java
@@ -58,10 +58,23 @@ public void execute() throws MojoExecutionException {
 
         File outfile = new File(outDir, value);
 
-        try (Writer writer = new FileWriter(outfile)) {
+        Writer writer = null;
+        try {
+            writer = new FileWriter(outfile);
+
             writer.write(value);
+
+            writer.flush();
         } catch (IOException e) {
             throw new MojoExecutionException("Cannot write output file: " + outfile, e);
+        } finally {
+            if (writer != null) {
+                try {
+                    writer.close();
+                } catch (IOException e) {
+                    // ignore
+                }
+            }
         }
     }
 }