diff --git a/src/main/java/rife/bld/extension/CompileKotlinOperation.java b/src/main/java/rife/bld/extension/CompileKotlinOperation.java
index 1465991..6576aac 100644
--- a/src/main/java/rife/bld/extension/CompileKotlinOperation.java
+++ b/src/main/java/rife/bld/extension/CompileKotlinOperation.java
@@ -154,7 +154,7 @@ public class CompileKotlinOperation extends AbstractOperation<CompileKotlinOpera
      * @return this operation instance
      */
     public CompileKotlinOperation compileMainClasspath(String... classpath) {
-        compileMainClasspath_.addAll(Arrays.asList(classpath));
+        Collections.addAll(compileMainClasspath_, classpath);
         return this;
     }
 
@@ -205,7 +205,7 @@ public class CompileKotlinOperation extends AbstractOperation<CompileKotlinOpera
      * @return this operation instance
      */
     public CompileKotlinOperation compileTestClasspath(String... classpath) {
-        compileTestClasspath_.addAll(Arrays.asList(classpath));
+        Collections.addAll(compileTestClasspath_, classpath);
         return this;
     }
 
@@ -398,7 +398,7 @@ public class CompileKotlinOperation extends AbstractOperation<CompileKotlinOpera
      * @return this operation instance
      */
     public CompileKotlinOperation mainSourceDirectories(File... directories) {
-        mainSourceDirectories_.addAll(List.of(directories));
+        Collections.addAll(mainSourceDirectories_, directories);
         return this;
     }
 
@@ -460,7 +460,7 @@ public class CompileKotlinOperation extends AbstractOperation<CompileKotlinOpera
      * @return this class instance
      */
     public CompileKotlinOperation plugins(String... plugins) {
-        plugins_.addAll(List.of(plugins));
+        Collections.addAll(plugins_, plugins);
         return this;
     }
 
@@ -526,7 +526,7 @@ public class CompileKotlinOperation extends AbstractOperation<CompileKotlinOpera
      * @return this operation instance
      */
     public CompileKotlinOperation testSourceDirectories(File... directories) {
-        testSourceDirectories_.addAll(List.of(directories));
+        Collections.addAll(testSourceDirectories_, directories);
         return this;
     }
 
diff --git a/src/main/java/rife/bld/extension/CompileKotlinOptions.java b/src/main/java/rife/bld/extension/CompileKotlinOptions.java
index 778a9a5..507c883 100644
--- a/src/main/java/rife/bld/extension/CompileKotlinOptions.java
+++ b/src/main/java/rife/bld/extension/CompileKotlinOptions.java
@@ -19,6 +19,7 @@ package rife.bld.extension;
 import java.io.File;
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.Collections;
 import java.util.List;
 
 import static rife.bld.extension.CompileKotlinOperation.isNotBlank;
@@ -95,7 +96,7 @@ public class CompileKotlinOptions {
      * @return this operation instance
      */
     public CompileKotlinOptions argFile(String... files) {
-        argFile_.addAll(List.of(files));
+        Collections.addAll(argFile_, files);
         return this;
     }
 
@@ -257,7 +258,7 @@ public class CompileKotlinOptions {
      * @return this operation instance
      */
     public CompileKotlinOptions classpath(String... paths) {
-        classpath_.addAll(List.of(paths));
+        Collections.addAll(classpath_, paths);
         return this;
     }
 
@@ -455,7 +456,7 @@ public class CompileKotlinOptions {
      * @return this operation instance
      */
     public CompileKotlinOptions optIn(String... annotations) {
-        optIn_.addAll(List.of(annotations));
+        Collections.addAll(optIn_, annotations);
         return this;
     }
 
@@ -477,7 +478,7 @@ public class CompileKotlinOptions {
      * @return this operation instance
      */
     public CompileKotlinOptions options(String... options) {
-        options_.addAll(List.of(options));
+        Collections.addAll(options_, options);
         return this;
     }
 
@@ -551,7 +552,7 @@ public class CompileKotlinOptions {
      * @return this operation instance
      */
     public CompileKotlinOptions scriptTemplates(String... classNames) {
-        scriptTemplates_.addAll(List.of(classNames));
+        Collections.addAll(scriptTemplates_, classNames);
         return this;
     }
 
diff --git a/src/main/java/rife/bld/extension/dokka/DokkaOperation.java b/src/main/java/rife/bld/extension/dokka/DokkaOperation.java
index 7229c63..56d2661 100644
--- a/src/main/java/rife/bld/extension/dokka/DokkaOperation.java
+++ b/src/main/java/rife/bld/extension/dokka/DokkaOperation.java
@@ -309,7 +309,7 @@ public class DokkaOperation extends AbstractProcessOperation<DokkaOperation> {
      * @return this operation instance
      */
     public DokkaOperation globalPackageOptions(String... options) {
-        globalPackageOptions_.addAll(Arrays.asList(options));
+        Collections.addAll(globalPackageOptions_, options);
         return this;
     }
 
@@ -342,7 +342,7 @@ public class DokkaOperation extends AbstractProcessOperation<DokkaOperation> {
      * @return this operation instance
      */
     public DokkaOperation globalSrcLink(String... links) {
-        globalSrcLinks_.addAll(Arrays.asList(links));
+        Collections.addAll(globalSrcLinks_, links);
         return this;
     }
 
@@ -368,7 +368,7 @@ public class DokkaOperation extends AbstractProcessOperation<DokkaOperation> {
      * @return this operation instance
      */
     public DokkaOperation includes(String... files) {
-        includes_.addAll(Arrays.asList(files));
+        Collections.addAll(includes_, files);
         return this;
     }
 
@@ -555,7 +555,7 @@ public class DokkaOperation extends AbstractProcessOperation<DokkaOperation> {
      * @return this operation instance
      */
     public DokkaOperation pluginsClasspath(String... jars) {
-        pluginsClasspath_.addAll(Arrays.asList(jars));
+        Collections.addAll(pluginsClasspath_, jars);
         return this;
     }
 
diff --git a/src/main/java/rife/bld/extension/dokka/SourceSet.java b/src/main/java/rife/bld/extension/dokka/SourceSet.java
index 28aedd8..e9457b5 100644
--- a/src/main/java/rife/bld/extension/dokka/SourceSet.java
+++ b/src/main/java/rife/bld/extension/dokka/SourceSet.java
@@ -241,7 +241,7 @@ public class SourceSet {
      * @return this operation instance
      */
     public SourceSet classpath(String... files) {
-        classpath_.addAll(Arrays.asList(files));
+        Collections.addAll(classpath_, files);
         return this;
     }
 
@@ -371,7 +371,7 @@ public class SourceSet {
      * @return this operation instance
      */
     public SourceSet includes(String... files) {
-        includes_.addAll(Arrays.asList(files));
+        Collections.addAll(includes_, files);
         return this;
     }
 
@@ -535,7 +535,7 @@ public class SourceSet {
      * @return this operation instance
      */
     public SourceSet perPackageOptions(String... perPackageOptions) {
-        perPackageOptions_.addAll(List.of(perPackageOptions));
+        Collections.addAll(perPackageOptions_, perPackageOptions);
         return this;
     }
 
@@ -581,7 +581,7 @@ public class SourceSet {
      * @return this operation instance
      */
     public SourceSet samples(String... samples) {
-        samples_.addAll(List.of(samples));
+        Collections.addAll(samples_, samples);
         return this;
     }
 
@@ -635,7 +635,7 @@ public class SourceSet {
      * @return this operation instance
      */
     public SourceSet src(String... src) {
-        src_.addAll(List.of(src));
+        Collections.addAll(src_, src);
         return this;
     }