enable to run minisite-core with java 8

README.adoc

@@ -288,9 +288,11 @@ Here is a sample report:
 
 === Minisite
 
-Minisite enables to render a static website with a generic Yupiik template.
+Minisite enables to render a static website with a generic Yupiik template or a custom one with some configuration.
 It comes with its companion serve goal to have a live preview.
 
+TIP: as all plugins it requires Java 11 but if you want to use it with Java 8 you can use `minisite-core` module with `exec-maven-plugin` since version 1.1.1.
+
 [source,sh]
 ----
  mvn yupiik-tools:minisite

_documentation/src/main/minisite/content/mojos.adoc

@@ -76,6 +76,9 @@ mvn \
 == Minisite
 
 xref:mojo/minisite.adoc[minisite] can push the minisite to a remote target (often git backed pages).
+
+TIP: as all plugins it requires Java 11 but if you want to use it with Java 8 you can use `minisite-core` module with `exec-maven-plugin` since version 1.1.1.
+
 Here is the related documentation.
 
 The configuration supports a `git` entry if you want to upload to a Git branch the generated website (like `gh-pages`):

minisite-core/pom.xml

@@ -73,4 +73,22 @@
       <scope>test</scope>
     </dependency>
   </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>default-compile</id>
+            <configuration>
+              <source>8</source>
+              <target>8</target>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 </project>

minisite-core/src/main/java/io/yupiik/maven/service/action/builtin/CopyFile.java

@@ -44,10 +44,10 @@ public void run() {
 
         try {
             if (Files.isDirectory(from)) {
-                Files.walkFileTree(from, new SimpleFileVisitor<>() {
+                Files.walkFileTree(from, new SimpleFileVisitor<Path>() {
                     @Override
                     public FileVisitResult visitFile(final Path file, final BasicFileAttributes attrs) throws IOException {
-                        final var target = to.resolve(from.relativize(file));
+                        final Path target = to.resolve(from.relativize(file));
                         doCopy(file, target);
                         return super.visitFile(file, attrs);
                     }

minisite-core/src/main/java/io/yupiik/maven/service/action/builtin/MojoDocumentationGeneration.java

@@ -159,7 +159,7 @@ private Goal toGoal(final Element element, final boolean requiresDefaults) {
                         .filter(e -> Boolean.parseBoolean(getString(e, "editable")))
                         .map(e -> {
                             final String name = getString(e, "name");
-                            final var defaultConfig = defaults.get(name);
+                            final ParameterConfig defaultConfig = defaults.get(name);
                             return new Parameter(
                                     name,
                                     getString(e, "type")
@@ -247,7 +247,7 @@ private String toDocumentation(final String groupId, final String artifactId, fi
                                     return p1.getName().compareTo(p2.getName());
                                 })
                                 .map(p -> {
-                                    final var config = p.getConfig();
+                                    final ParameterConfig config = p.getConfig();
                                     return p.getName() + (p.isRequired() ? "*" : "") + " (`" + p.getType() + "`)" + "::\n" +
                                             ofNullable(p.getDescription())
                                                     .map(String::trim)
@@ -270,7 +270,7 @@ private String toDocumentation(final String groupId, final String artifactId, fi
     }
 
     private String sanitizeDescription(final String it) {
-        final var text = it
+        final String text = it
                 .replace("<p>", "\n").replace("</p>", "")
                 .replace("<ul>", "").replace("</ul>", "")
                 .replace("<li>", "* ").replace("</li>", "\n");
@@ -296,7 +296,7 @@ private Document loadXml(final String pluginXmlLocation) throws ParserConfigurat
     }
 
     private static InputStream findPluginXml(final String pluginXmlLocation) throws IOException {
-        final var path = Path.of(pluginXmlLocation).toAbsolutePath().normalize();
+        final Path path = Path.of(pluginXmlLocation).toAbsolutePath().normalize();
         if (Files.exists(path)) {
             return Files.newInputStream(path);
         }

minisite-core/src/main/java/io/yupiik/tools/minisite/Gravatar.java

@@ -29,8 +29,8 @@ public String toUrl(final MiniSiteConfiguration.GravatarConfiguration configurat
 
     private String hash(final String mail) {
         try {
-            final var md = MessageDigest.getInstance("MD5");
-            final var array = md.digest(mail.getBytes("CP1252"));
+            final MessageDigest md = MessageDigest.getInstance("MD5");
+            final byte[] array = md.digest(mail.getBytes("CP1252"));
             return IntStream.range(0, array.length)
                     .mapToObj(idx -> Integer.toHexString((array[idx] & 0xFF) | 0x100).substring(1, 3))
                     .collect(joining());

minisite-core/src/main/java/io/yupiik/tools/minisite/IndexService.java

@@ -46,7 +46,7 @@ public class IndexService {
     public Index index(final Path base, final String siteBase, final Predicate<Path> filter) {
         final Index result = new Index(new ArrayList<>());
         try {
-            Files.walkFileTree(base, new SimpleFileVisitor<>() {
+            Files.walkFileTree(base, new SimpleFileVisitor<Path>() {
                 @Override
                 public FileVisitResult visitFile(final Path file, final BasicFileAttributes attrs) throws IOException {
                     if (file.getFileName().toString().endsWith(".html") && filter.test(file)) {