diff --git a/README.md b/README.md
index 5eaebdb..22ce8ce 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,8 @@
 
 To install, please refer to the [extensions documentation](https://github.com/rife2/bld/wiki/Extensions).
 
-To create a Spring Boot executable Java Archive (JAR) from the current project:
+To create a [Spring Boot executable Java Archive](https://docs.spring.io/spring-boot/docs/current/reference/html/executable-jar.html)
+(JAR) from the current project:
 
 ```java
 @@BuildCommand(summary = "Creates an executable JAR for the project")
@@ -25,7 +26,8 @@ public void bootjar() throws Exception {
 ./bld compile bootjar
 ```
 
-To create a Spring Boot executable Web Archive (WAR) from the current project:
+To create a [Spring Boot executable Web Archive](https://docs.spring.io/spring-boot/docs/current/reference/html/executable-jar.html#appendix.executable-jar.nested-jars.war-structure)
+(WAR) from the current project:
 
 ```java
 @BuildCommand(summary = "Create an executable WAR for the project")
diff --git a/examples/src/bld/java/com/example/demo/DemoApplicationBuild.java b/examples/src/bld/java/com/example/demo/DemoApplicationBuild.java
index fb06087..b591297 100644
--- a/examples/src/bld/java/com/example/demo/DemoApplicationBuild.java
+++ b/examples/src/bld/java/com/example/demo/DemoApplicationBuild.java
@@ -39,11 +39,12 @@ public class DemoApplicationBuild extends WebProject {
     }
 
     public static void main(String[] args) {
+        var level = Level.ALL;
         var logger = Logger.getLogger("rife.bld.extension");
         ConsoleHandler consoleHandler = new ConsoleHandler();
-        consoleHandler.setLevel(Level.ALL);
+        consoleHandler.setLevel(level);
         logger.addHandler(consoleHandler);
-        logger.setLevel(Level.ALL);
+        logger.setLevel(level);
         logger.setUseParentHandlers(false);
 
         new DemoApplicationBuild().start(args);
diff --git a/src/main/java/rife/bld/extension/AbstractBootOperation.java b/src/main/java/rife/bld/extension/AbstractBootOperation.java
index d486f4c..df4bb43 100644
--- a/src/main/java/rife/bld/extension/AbstractBootOperation.java
+++ b/src/main/java/rife/bld/extension/AbstractBootOperation.java
@@ -25,6 +25,7 @@ import java.io.IOException;
 import java.io.PrintWriter;
 import java.io.StringWriter;
 import java.nio.file.Files;
+import java.text.DecimalFormat;
 import java.text.MessageFormat;
 import java.util.ArrayList;
 import java.util.Collection;
@@ -57,7 +58,7 @@ public abstract class AbstractBootOperation<T extends AbstractBootOperation<T>>
      *
      * @param directory the directory to delete
      */
-    public void deleteDirectories(File... directory) throws FileUtilsErrorException {
+    public static void deleteDirectories(File... directory) throws FileUtilsErrorException {
         for (var d : directory) {
             if (d.exists()) {
                 FileUtils.deleteDirectory(d);
@@ -65,6 +66,34 @@ public abstract class AbstractBootOperation<T extends AbstractBootOperation<T>>
         }
     }
 
+    /**
+     * Return the given file size in bytes, kilobytes, megabytes, gigabytes or terabytes.
+     *
+     * @param file the file
+     * @return the file size in B, KB, MB, GB, or TB.
+     */
+    public static String fileSize(File file) {
+        var size = file.length();
+        if (size <= 0) {
+            return "0 B";
+        }
+        var units = new String[]{"B", "KB", "MB", "GB", "TB"};
+        var digitGroups = (int) (Math.log10(size) / Math.log10(1024));
+        return new DecimalFormat("#,##0.#").format(size / Math.pow(1024, digitGroups))
+                + ' ' + units[digitGroups];
+    }
+
+    /**
+     * Makes a directory for the given path, including any necessary but nonexistent parent directories.
+     *
+     * @param path the directory path
+     */
+    public static void mkDirs(File path) throws IOException {
+        if (!path.exists() && !path.mkdirs()) {
+            throw new IOException("ERROR: unable to create: " + path.getAbsolutePath());
+        }
+    }
+
     /**
      * Retrieves the destination directory in which the JAR will be created.
      *
@@ -376,17 +405,6 @@ public abstract class AbstractBootOperation<T extends AbstractBootOperation<T>>
         return (T) this;
     }
 
-    /**
-     * Makes a directory for the given path, including any necessary but nonexistent parent directories.
-     *
-     * @param path the directory path
-     */
-    protected void mkDirs(File path) throws IOException {
-        if (!path.exists() && !path.mkdirs()) {
-            throw new IOException("ERROR: unable to create: " + path.getAbsolutePath());
-        }
-    }
-
     /**
      * Provides source directories that will be used for the jar archive creation.
      *
@@ -414,6 +432,7 @@ public abstract class AbstractBootOperation<T extends AbstractBootOperation<T>>
      *
      * @return {@code true} or an {@link IllegalArgumentException}
      */
+    @SuppressWarnings("SameReturnValue")
     protected boolean verifyExecute() throws IllegalArgumentException {
         if (mainClass() == null) {
             throw new IllegalArgumentException("ERROR: project mainClass required.");
diff --git a/src/main/java/rife/bld/extension/BootJarOperation.java b/src/main/java/rife/bld/extension/BootJarOperation.java
index ae5aed7..72d6361 100644
--- a/src/main/java/rife/bld/extension/BootJarOperation.java
+++ b/src/main/java/rife/bld/extension/BootJarOperation.java
@@ -53,7 +53,8 @@ public class BootJarOperation extends AbstractBootOperation<BootJarOperation> {
             var archive = executeCreateArchive(staging_dir);
 
             if (!silent() && LOGGER.isLoggable(Level.INFO)) {
-                LOGGER.info("The executable JAR was created: " + archive.getAbsolutePath());
+                LOGGER.info(String.format("The executable JAR was created: %s (%s)", archive.getAbsolutePath(),
+                        fileSize(archive)));
             }
         } finally {
             FileUtils.deleteDirectory(staging_dir);
diff --git a/src/main/java/rife/bld/extension/BootWarOperation.java b/src/main/java/rife/bld/extension/BootWarOperation.java
index 1a73de0..2b05d0f 100644
--- a/src/main/java/rife/bld/extension/BootWarOperation.java
+++ b/src/main/java/rife/bld/extension/BootWarOperation.java
@@ -57,7 +57,8 @@ public class BootWarOperation extends AbstractBootOperation<BootWarOperation> {
             var archive = executeCreateArchive(staging_dir);
 
             if (!silent() && LOGGER.isLoggable(Level.INFO)) {
-                LOGGER.info("The executable WAR was created: " + archive.getAbsolutePath());
+                LOGGER.info(String.format("The executable WAR was created: %s (%s)", archive.getAbsolutePath(),
+                        fileSize(archive)));
             }
         } finally {
             FileUtils.deleteDirectory(staging_dir);