try-with-resources.

Author: garydgregory

log4j-core/src/test/java/org/apache/logging/log4j/core/appender/rolling/RollingAppenderCronTest.java

@@ -81,9 +81,9 @@ public void testAppender() throws Exception {
             fail("No compressed files found");
         }
         final Path src = FileSystems.getDefault().getPath("target/test-classes/log4j-rolling-cron2.xml");
-        final OutputStream os = new FileOutputStream("target/test-classes/log4j-rolling-cron.xml");
-        Files.copy(src, os);
-        os.close();
+        try (final OutputStream os = new FileOutputStream("target/test-classes/log4j-rolling-cron.xml")) {
+            Files.copy(src, os);
+        }
         Thread.sleep(5000);
         // force a reconfiguration
         for (int i = 0; i < MAX_TRIES; ++i) {