diff --git a/.idea/libraries/bld.xml b/.idea/libraries/bld.xml
index cf75013..be6063a 100644
--- a/.idea/libraries/bld.xml
+++ b/.idea/libraries/bld.xml
@@ -6,6 +6,7 @@
     </CLASSES>
     <JAVADOC />
     <SOURCES>
+      <root url="file://$PROJECT_DIR$/lib/bld" />
       <root url="jar://$USER_HOME$/.bld/dist/bld-1.7.5-sources.jar!/" />
     </SOURCES>
     <excluded>
diff --git a/lib/bld/bld-wrapper.properties b/lib/bld/bld-wrapper.properties
index 80e04df..33db783 100644
--- a/lib/bld/bld-wrapper.properties
+++ b/lib/bld/bld-wrapper.properties
@@ -1,6 +1,6 @@
 bld.downloadExtensionJavadoc=false
 bld.downloadExtensionSources=true
-bld.extension-pmd=com.uwyn.rife2:bld-pmd:0.9.3
+bld.extension-pmd=com.uwyn.rife2:bld-pmd:0.9.4
 bld.extension-jacoco=com.uwyn.rife2:bld-jacoco-report:0.9.1
 bld.repositories=MAVEN_LOCAL,MAVEN_CENTRAL,RIFE2_SNAPSHOTS,RIFE2_RELEASES
 bld.downloadLocation=
diff --git a/src/bld/java/rife/bld/extension/ExecOperationBuild.java b/src/bld/java/rife/bld/extension/ExecOperationBuild.java
index 40817e9..b910652 100644
--- a/src/bld/java/rife/bld/extension/ExecOperationBuild.java
+++ b/src/bld/java/rife/bld/extension/ExecOperationBuild.java
@@ -35,7 +35,7 @@ public class ExecOperationBuild extends Project {
     public ExecOperationBuild() {
         pkg = "rife.bld.extension";
         name = "ExecOperation";
-        version = version(0, 9, 0);
+        version = version(0, 9, 1, "SNAPSHOT");
 
         javaRelease = 17;
         downloadSources = true;
@@ -45,13 +45,13 @@ public class ExecOperationBuild extends Project {
         scope(compile)
                 .include(dependency("com.uwyn.rife2", "bld", version(1, 7, 5)));
         scope(test)
-                .include(dependency("org.jsoup", "jsoup", version(1, 16, 2)))
-                .include(dependency("org.junit.jupiter", "junit-jupiter", version(5, 10, 0)))
-                .include(dependency("org.junit.platform", "junit-platform-console-standalone", version(1, 10, 0)))
+                .include(dependency("org.junit.jupiter", "junit-jupiter", version(5, 10, 1)))
+                .include(dependency("org.junit.platform", "junit-platform-console-standalone", version(1, 10, 1)))
                 .include(dependency("org.assertj", "assertj-core", version(3, 24, 2)));
 
         javadocOperation()
                 .javadocOptions()
+                .author()
                 .docLint(NO_MISSING)
                 .link("https://rife2.github.io/bld/")
                 .link("https://rife2.github.io/rife2/");
@@ -61,15 +61,26 @@ public class ExecOperationBuild extends Project {
                 .info()
                 .groupId("com.uwyn.rife2")
                 .artifactId("bld-exec")
-                .description("Command Line Execution Extension for bld ")
+                .description("Command Line Execution Extension for bld")
                 .url("https://github.com/rife2/bld-exec")
-                .developer(new PublishDeveloper().id("ethauvin").name("Erik C. Thauvin").email("erik@thauvin.net")
-                        .url("https://erik.thauvin.net/"))
-                .license(new PublishLicense().name("The Apache License, Version 2.0")
-                        .url("http://www.apache.org/licenses/LICENSE-2.0.txt"))
-                .scm(new PublishScm().connection("scm:git:https://github.com/rife2/bld-exec.git")
-                        .developerConnection("scm:git:git@github.com:rife2/bld-exec.git")
-                        .url("https://github.com/rife2/bld-exec"))
+                .developer(
+                        new PublishDeveloper()
+                                .id("ethauvin")
+                                .name("Erik C. Thauvin")
+                                .email("erik@thauvin.net")
+                                .url("https://erik.thauvin.net/")
+                )
+                .license(
+                        new PublishLicense()
+                                .name("The Apache License, Version 2.0")
+                                .url("http://www.apache.org/licenses/LICENSE-2.0.txt")
+                )
+                .scm(
+                        new PublishScm()
+                                .connection("scm:git:https://github.com/rife2/bld-exec.git")
+                                .developerConnection("scm:git:git@github.com:rife2/bld-exec.git")
+                                .url("https://github.com/rife2/bld-exec")
+                )
                 .signKey(property("sign.key"))
                 .signPassphrase(property("sign.passphrase"));
     }
diff --git a/src/main/java/rife/bld/extension/ExecOperation.java b/src/main/java/rife/bld/extension/ExecOperation.java
index 377dad0..df6540a 100644
--- a/src/main/java/rife/bld/extension/ExecOperation.java
+++ b/src/main/java/rife/bld/extension/ExecOperation.java
@@ -44,12 +44,14 @@ public class ExecOperation extends AbstractOperation<ExecOperation> {
      * Configures the command and arguments to be executed.
      * <p>
      * For example:
-     * <p><ul>
-     * <li>{@code command("cmd", "/c", "stop.bat")}</li>
-     * <li>{@code command("./stop.sh"}</li>
-     * </ul></p>
-     * 
-     * @see #command(Collection) 
+     * <ul>
+     *     <li>{@code command("cmd", "/c", "stop.bat")}</li>
+     *     <li>{@code command("./stop.sh"}</li>
+     * </ul>
+     *
+     * @param arg one or more arguments
+     * @return this operation instance
+     * @see #command(Collection)
      */
     public ExecOperation command(String... arg) {
         args_.addAll(List.of(arg));
@@ -59,6 +61,8 @@ public class ExecOperation extends AbstractOperation<ExecOperation> {
     /**
      * Configures the command and arguments to be executed.
      *
+     * @param args the list of arguments
+     * @return this operation instance
      * @see #command(String...)
      */
     public ExecOperation command(Collection<String> args) {
@@ -74,6 +78,7 @@ public class ExecOperation extends AbstractOperation<ExecOperation> {
         if (project_ == null) {
             LOGGER.severe("A project must be specified.");
         }
+
         var errorMessage = new StringBuilder(27);
 
         final File workDir;
@@ -134,6 +139,8 @@ public class ExecOperation extends AbstractOperation<ExecOperation> {
     /**
      * Configure the failure mode.
      *
+     * @param fail one or more failure modes
+     * @return this operation instance
      * @see ExecFail
      */
     public ExecOperation fail(ExecFail... fail) {
@@ -143,6 +150,9 @@ public class ExecOperation extends AbstractOperation<ExecOperation> {
 
     /**
      * Configures an Exec operation from a {@link BaseProject}.
+     *
+     * @param project the project
+     * @return this operation instance
      */
     public ExecOperation fromProject(BaseProject project) {
         project_ = project;
@@ -161,6 +171,9 @@ public class ExecOperation extends AbstractOperation<ExecOperation> {
 
     /**
      * Configures the working directory.
+     *
+     * @param dir the directory path
+     * @return this operation instance
      */
     public ExecOperation workDir(String dir) {
         workDir_ = dir;