diff --git a/src/test/java/rife/bld/extension/BootJarOperationTest.java b/src/test/java/rife/bld/extension/BootJarOperationTest.java
index 5a167cb..cc48e56 100644
--- a/src/test/java/rife/bld/extension/BootJarOperationTest.java
+++ b/src/test/java/rife/bld/extension/BootJarOperationTest.java
@@ -16,5 +16,293 @@
 
 package rife.bld.extension;
 
+import org.junit.jupiter.api.Test;
+import rife.bld.Project;
+import rife.bld.dependencies.VersionNumber;
+import rife.tools.FileUtils;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatCode;
+
 class BootJarOperationTest {
+    private static final String BLD = "bld-1.7.5.jar";
+    private static final String EXAMPLES_LIB_COMPILE = "examples/lib/compile/";
+    private static final String EXAMPLES_LIB_STANDALONE = "examples/lib/standalone/";
+    private static final String LAUNCHER_JARS = """
+            org/
+            org/springframework/
+            org/springframework/boot/
+            org/springframework/boot/loader/
+            org/springframework/boot/loader/ClassPathIndexFile.class
+            org/springframework/boot/loader/ExecutableArchiveLauncher.class
+            org/springframework/boot/loader/JarLauncher.class
+            org/springframework/boot/loader/LaunchedURLClassLoader$DefinePackageCallType.class
+            org/springframework/boot/loader/LaunchedURLClassLoader$UseFastConnectionExceptionsEnumeration.class
+            org/springframework/boot/loader/LaunchedURLClassLoader.class
+            org/springframework/boot/loader/Launcher.class
+            org/springframework/boot/loader/MainMethodRunner.class
+            org/springframework/boot/loader/PropertiesLauncher$ArchiveEntryFilter.class
+            org/springframework/boot/loader/PropertiesLauncher$ClassPathArchives.class
+            org/springframework/boot/loader/PropertiesLauncher$PrefixMatchingArchiveFilter.class
+            org/springframework/boot/loader/PropertiesLauncher.class
+            org/springframework/boot/loader/WarLauncher.class
+            org/springframework/boot/loader/archive/
+            org/springframework/boot/loader/archive/Archive$Entry.class
+            org/springframework/boot/loader/archive/Archive$EntryFilter.class
+            org/springframework/boot/loader/archive/Archive.class
+            org/springframework/boot/loader/archive/ExplodedArchive$AbstractIterator.class
+            org/springframework/boot/loader/archive/ExplodedArchive$ArchiveIterator.class
+            org/springframework/boot/loader/archive/ExplodedArchive$EntryIterator.class
+            org/springframework/boot/loader/archive/ExplodedArchive$FileEntry.class
+            org/springframework/boot/loader/archive/ExplodedArchive$SimpleJarFileArchive.class
+            org/springframework/boot/loader/archive/ExplodedArchive.class
+            org/springframework/boot/loader/archive/JarFileArchive$AbstractIterator.class
+            org/springframework/boot/loader/archive/JarFileArchive$EntryIterator.class
+            org/springframework/boot/loader/archive/JarFileArchive$JarFileEntry.class
+            org/springframework/boot/loader/archive/JarFileArchive$NestedArchiveIterator.class
+            org/springframework/boot/loader/archive/JarFileArchive.class
+            org/springframework/boot/loader/data/
+            org/springframework/boot/loader/data/RandomAccessData.class
+            org/springframework/boot/loader/data/RandomAccessDataFile$DataInputStream.class
+            org/springframework/boot/loader/data/RandomAccessDataFile$FileAccess.class
+            org/springframework/boot/loader/data/RandomAccessDataFile.class
+            org/springframework/boot/loader/jar/
+            org/springframework/boot/loader/jar/AbstractJarFile$JarFileType.class
+            org/springframework/boot/loader/jar/AbstractJarFile.class
+            org/springframework/boot/loader/jar/AsciiBytes.class
+            org/springframework/boot/loader/jar/Bytes.class
+            org/springframework/boot/loader/jar/CentralDirectoryEndRecord$Zip64End.class
+            org/springframework/boot/loader/jar/CentralDirectoryEndRecord$Zip64Locator.class
+            org/springframework/boot/loader/jar/CentralDirectoryEndRecord.class
+            org/springframework/boot/loader/jar/CentralDirectoryFileHeader.class
+            org/springframework/boot/loader/jar/CentralDirectoryParser.class
+            org/springframework/boot/loader/jar/CentralDirectoryVisitor.class
+            org/springframework/boot/loader/jar/FileHeader.class
+            org/springframework/boot/loader/jar/Handler.class
+            org/springframework/boot/loader/jar/JarEntry.class
+            org/springframework/boot/loader/jar/JarEntryCertification.class
+            org/springframework/boot/loader/jar/JarEntryFilter.class
+            org/springframework/boot/loader/jar/JarFile$1.class
+            org/springframework/boot/loader/jar/JarFile$JarEntryEnumeration.class
+            org/springframework/boot/loader/jar/JarFile.class
+            org/springframework/boot/loader/jar/JarFileEntries$1.class
+            org/springframework/boot/loader/jar/JarFileEntries$EntryIterator.class
+            org/springframework/boot/loader/jar/JarFileEntries$Offsets.class
+            org/springframework/boot/loader/jar/JarFileEntries$Zip64Offsets.class
+            org/springframework/boot/loader/jar/JarFileEntries$ZipOffsets.class
+            org/springframework/boot/loader/jar/JarFileEntries.class
+            org/springframework/boot/loader/jar/JarFileWrapper.class
+            org/springframework/boot/loader/jar/JarURLConnection$1.class
+            org/springframework/boot/loader/jar/JarURLConnection$JarEntryName.class
+            org/springframework/boot/loader/jar/JarURLConnection.class
+            org/springframework/boot/loader/jar/StringSequence.class
+            org/springframework/boot/loader/jar/ZipInflaterInputStream.class
+            org/springframework/boot/loader/jarmode/
+            org/springframework/boot/loader/jarmode/JarMode.class
+            org/springframework/boot/loader/jarmode/JarModeLauncher.class
+            org/springframework/boot/loader/jarmode/TestJarMode.class
+            org/springframework/boot/loader/util/
+            org/springframework/boot/loader/util/SystemPropertyUtils.class
+            """;
+    private static final String MAIN_CLASS = "com.example.Foo";
+    private static final String SPRING_BOOT = "spring-boot-3.1.5.jar";
+    private static final String SPRING_BOOT_ACTUATOR = "spring-boot-actuator-3.1.5.jar";
+    private static final String SPRING_BOOT_LOADER = "spring-boot-loader-3.1.5.jar";
+
+    private StringBuilder readJarEntries(File jar) throws IOException {
+        var jarEntries = new StringBuilder();
+        try (var jarFile = new JarFile(jar)) {
+            for (Enumeration<JarEntry> entries = jarFile.entries(); entries.hasMoreElements(); ) {
+                jarEntries.append(entries.nextElement().getName()).append('\n');
+            }
+        }
+        return jarEntries;
+    }
+
+    @Test
+    void testErrors() throws IOException {
+        var bootWar = new BootWarOperation();
+        assertThatCode(bootWar::execute).isInstanceOf(IllegalArgumentException.class)
+                .hasMessageContaining("mainClass");
+
+        bootWar = bootWar.mainClass(MAIN_CLASS);
+        assertThatCode(bootWar::execute)
+                .isInstanceOf(IllegalArgumentException.class)
+                .hasMessageContaining("spring-boot-loader");
+
+        assertThatCode(() -> new BootWarOperation().launcherJars(List.of(new File("foo"))))
+                .isInstanceOf(IOException.class)
+                .hasMessageContaining("found");
+
+        bootWar = bootWar.launcherJars(List.of(new File(EXAMPLES_LIB_STANDALONE + SPRING_BOOT_LOADER)));
+        assertThatCode(bootWar::execute)
+                .isInstanceOf((IllegalArgumentException.class))
+                .hasMessageContaining("class required").hasMessageContaining("spring-boot-loader");
+
+        bootWar = bootWar.launcherClass("org.springframework.boot.loader.WarLauncher");
+        assertThat(bootWar.verifyExecute()).isTrue();
+    }
+
+    @Test
+    void testJarExecute() throws Exception {
+        var tmp_dir = Files.createTempDirectory("bootjartmp").toFile();
+        var jar = "foo-1.1.1.jar";
+        new BootJarOperation()
+                .launcherClass("org.springframework.boot.loader.JarLauncher")
+                .launcherJars(List.of(new File(EXAMPLES_LIB_STANDALONE + SPRING_BOOT_LOADER)))
+                .destinationDirectory(tmp_dir)
+                .destinationArchiveFileName(jar)
+                .infLibs(new File(EXAMPLES_LIB_COMPILE + SPRING_BOOT),
+                        new File(EXAMPLES_LIB_COMPILE + SPRING_BOOT_ACTUATOR))
+                .mainClass(MAIN_CLASS)
+                .sourceDirectories(new File("build/main"))
+                .execute();
+
+        var jarFile = new File(tmp_dir, jar);
+        assertThat(jarFile).exists();
+
+        var jarEntries = readJarEntries(jarFile);
+        assertThat(jarEntries).isEqualToIgnoringNewLines(
+                "BOOT-INF/\n" +
+                        "BOOT-INF/classes/\n" +
+                        "BOOT-INF/classes/rife/\n" +
+                        "BOOT-INF/classes/rife/bld/\n" +
+                        "BOOT-INF/classes/rife/bld/extension/\n" +
+                        "BOOT-INF/classes/rife/bld/extension/AbstractBootOperation$ManifestAttribute.class\n" +
+                        "BOOT-INF/classes/rife/bld/extension/AbstractBootOperation.class\n" +
+                        "BOOT-INF/classes/rife/bld/extension/BootJarOperation$ManifestAttribute.class\n" +
+                        "BOOT-INF/classes/rife/bld/extension/BootJarOperation.class\n" +
+                        "BOOT-INF/classes/rife/bld/extension/BootManifestAttribute.class\n" +
+                        "BOOT-INF/classes/rife/bld/extension/BootWarOperation.class\n" +
+                        "BOOT-INF/lib/\n" +
+                        "BOOT-INF/lib/" + SPRING_BOOT + '\n' +
+                        "BOOT-INF/lib/" + SPRING_BOOT_ACTUATOR + '\n' +
+                        "META-INF/\n" +
+                        "META-INF/MANIFEST.MF" + LAUNCHER_JARS);
+
+        FileUtils.deleteDirectory(tmp_dir);
+    }
+
+    @Test
+    void testJarProjectExecute() throws Exception {
+        var tmp_dir = Files.createTempDirectory("bootwartmp").toFile();
+        new BootJarOperation()
+                .fromProject(new CustomProject(new File(".")))
+                .launcherJars(List.of(new File(EXAMPLES_LIB_STANDALONE + SPRING_BOOT_LOADER)))
+                .destinationDirectory(tmp_dir)
+                .infLibs(new File(EXAMPLES_LIB_COMPILE + SPRING_BOOT),
+                        new File(EXAMPLES_LIB_COMPILE + SPRING_BOOT_ACTUATOR))
+                .execute();
+
+        var jarFile = new File(tmp_dir, "test_project-0.0.1-boot.jar");
+        assertThat(jarFile).exists();
+
+        var jarEntries = readJarEntries(jarFile);
+        assertThat(jarEntries).isEqualToIgnoringNewLines(
+                "BOOT-INF/\n" +
+                        "BOOT-INF/classes/\n" +
+                        "BOOT-INF/classes/rife/\n" +
+                        "BOOT-INF/classes/rife/bld/\n" +
+                        "BOOT-INF/classes/rife/bld/extension/\n" +
+                        "BOOT-INF/classes/rife/bld/extension/AbstractBootOperation$ManifestAttribute.class\n" +
+                        "BOOT-INF/classes/rife/bld/extension/AbstractBootOperation.class\n" +
+                        "BOOT-INF/classes/rife/bld/extension/BootJarOperation$ManifestAttribute.class\n" +
+                        "BOOT-INF/classes/rife/bld/extension/BootJarOperation.class\n" +
+                        "BOOT-INF/classes/rife/bld/extension/BootManifestAttribute.class\n" +
+                        "BOOT-INF/classes/rife/bld/extension/BootWarOperation.class\n" +
+                        "BOOT-INF/lib/\n" +
+                        "BOOT-INF/lib/" + BLD + '\n' +
+                        "BOOT-INF/lib/" + SPRING_BOOT + '\n' +
+                        "BOOT-INF/lib/" + SPRING_BOOT_ACTUATOR + '\n' +
+                        "META-INF/\n" +
+                        "META-INF/MANIFEST.MF" + LAUNCHER_JARS);
+
+        FileUtils.deleteDirectory(tmp_dir);
+    }
+
+    @Test
+    void testProject() throws IOException {
+        var tmp_dir = Files.createTempDirectory("bootjartmp").toFile();
+        var project = new CustomProject(tmp_dir);
+        var bootJar = new BootJarOperation().fromProject(project);
+
+        assertThat(bootJar.project()).as("project").isEqualTo(project);
+        assertThat(bootJar.mainClass()).as("mainClass").isEqualTo(MAIN_CLASS);
+        assertThat(bootJar.sourceDirectories()).as("sourceDirectories.size").hasSize(2);
+        assertThat(bootJar.manifestAttributes()).as("manifestAttributes.size").hasSize(3);
+        assertThat(bootJar.manifestAttributes().get(0)).as("Manifest-Version")
+                .isEqualTo(new BootManifestAttribute("Manifest-Version", "1.0"));
+        assertThat(bootJar.manifestAttributes().get(1).value()).as("Main-Class").endsWith("JarLauncher");
+        assertThat(bootJar.manifestAttributes().get(2)).as("Start-Class")
+                .isEqualTo(new BootManifestAttribute("Start-Class", MAIN_CLASS));
+        assertThat(bootJar.manifestAttribute("Manifest-Test", "tsst")
+                .manifestAttributes()).as("Manifest-Test").hasSize(4)
+                .element(3).extracting(BootManifestAttribute::name).isEqualTo("Manifest-Test");
+        assertThat(bootJar.destinationDirectory()).as("destinationDirectory").isDirectory();
+        assertThat(bootJar.destinationDirectory().getAbsolutePath()).as("destinationDirectory")
+                .isEqualTo(Path.of(tmp_dir.getPath(), "build", "dist").toString());
+        assertThat(bootJar.infLibs()).as("infoLibs").isEmpty();
+        assertThat(bootJar.launcherJars()).as("launcherJars").isEmpty();
+        assertThat(bootJar.destinationArchiveFileName()).isEqualTo("test_project-0.0.1-boot.jar");
+
+        FileUtils.deleteDirectory(tmp_dir);
+    }
+
+    @Test
+    void testWarProjectExecute() throws Exception {
+        var tmp_dir = Files.createTempDirectory("bootjartmp").toFile();
+        new BootWarOperation()
+                .fromProject(new CustomProject(new File(".")))
+                .launcherJars(List.of(new File(EXAMPLES_LIB_STANDALONE + SPRING_BOOT_LOADER)))
+                .destinationDirectory(tmp_dir)
+                .infLibs(new File(EXAMPLES_LIB_COMPILE + SPRING_BOOT),
+                        new File(EXAMPLES_LIB_COMPILE + SPRING_BOOT_ACTUATOR))
+                .execute();
+
+        var warFile = new File(tmp_dir, "test_project-0.0.1-boot.war");
+        assertThat(warFile).exists();
+
+        var jarEntries = readJarEntries(warFile);
+        assertThat(jarEntries).isEqualToIgnoringNewLines(
+                "META-INF/\n" +
+                        "META-INF/MANIFEST.MF\n" +
+                        "WEB-INF/\n" +
+                        "WEB-INF/classes/\n" +
+                        "WEB-INF/classes/rife/\n" +
+                        "WEB-INF/classes/rife/bld/\n" +
+                        "WEB-INF/classes/rife/bld/extension/\n" +
+                        "WEB-INF/classes/rife/bld/extension/AbstractBootOperation$ManifestAttribute.class\n" +
+                        "WEB-INF/classes/rife/bld/extension/AbstractBootOperation.class\n" +
+                        "WEB-INF/classes/rife/bld/extension/BootJarOperation$ManifestAttribute.class\n" +
+                        "WEB-INF/classes/rife/bld/extension/BootJarOperation.class\n" +
+                        "WEB-INF/classes/rife/bld/extension/BootManifestAttribute.class\n" +
+                        "WEB-INF/classes/rife/bld/extension/BootWarOperation.class\n" +
+                        "WEB-INF/lib/\n" +
+                        "WEB-INF/lib/" + BLD + '\n' +
+                        "WEB-INF/lib/dist/\n" +
+                        "WEB-INF/lib/" + SPRING_BOOT + '\n' +
+                        "WEB-INF/lib/" + SPRING_BOOT_ACTUATOR + '\n' + LAUNCHER_JARS);
+
+        FileUtils.deleteDirectory(tmp_dir);
+    }
+
+    static class CustomProject extends Project {
+        CustomProject(File tmp) {
+            super();
+            workDirectory = tmp;
+            pkg = "com.example";
+            name = "test_project";
+            version = new VersionNumber(0, 0, 1);
+            mainClass = MAIN_CLASS;
+        }
+    }
 }
\ No newline at end of file