Avoid conditional for single-logs

Signed-off-by: Robert Young <robertyoungnz@gmail.com>

Author: robobario

kroxylicious-systemtests/src/main/java/io/kroxylicious/systemtests/executor/Exec.java

@@ -24,6 +24,7 @@
 import java.util.concurrent.Future;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
+import java.util.function.Supplier;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -303,17 +304,15 @@ private static void logExecutor(int ret, String input, List<String> command, Str
      * @throws ExecutionException the execution exception
      */
     public int execute(String input, List<String> commands, Duration timeout, File dir) throws IOException, InterruptedException, ExecutionException {
-        if (LOGGER.isDebugEnabled()) {
-            LOGGER.debug("Running command - {}", String.join(" ", commands.toArray(new String[0])));
-        }
+        LOGGER.atDebug().setMessage("Running command - {}").addArgument(() -> String.join(" ", commands.toArray(new String[0]))).log();
         ProcessBuilder builder = new ProcessBuilder();
         builder.command(commands);
         dir = dir == null ? new File(System.getProperty("user.dir")) : dir;
         builder.directory(dir);
         process = builder.start();
         OutputStream outputStream = process.getOutputStream();
         if (input != null) {
-            LOGGER.debug("With stdin {}", input);
+            LOGGER.debug("With stdin {}", (Supplier<String>) () -> input);
             outputStream.write(input.getBytes(Charset.defaultCharset()));
         }
         // Close subprocess' stdin
@@ -363,9 +362,7 @@ public int execute(String input, List<String> commands, Duration timeout, File d
      * @return the pid
      */
     public long executeWithoutWait(String input, List<String> commands, File dir) {
-        if (LOGGER.isDebugEnabled()) {
-            LOGGER.debug("Running command - {}", String.join(" ", commands.toArray(new String[0])));
-        }
+        LOGGER.atDebug().setMessage("Running command - {}").addArgument(() -> String.join(" ", commands.toArray(new String[0]))).log();
         ProcessBuilder builder = new ProcessBuilder();
         builder.command(commands);
         dir = dir == null ? new File(System.getProperty("user.dir")) : dir;