Remove use of commons-io from vespa-application-maven-plugin

2 files changed, 19 insertions, 7 deletions

diff --git a/vespa-application-maven-plugin/pom.xml b/vespa-application-maven-plugin/pom.xml
index aaa30ed28af..6fc7d15ecf1 100644
--- a/vespa-application-maven-plugin/pom.xml
+++ b/vespa-application-maven-plugin/pom.xml
@@ -42,10 +42,6 @@
       <groupId>org.apache.maven.plugins</groupId>
       <artifactId>maven-jar-plugin</artifactId>
     </dependency>
-    <dependency>
-      <groupId>commons-io</groupId>
-      <artifactId>commons-io</artifactId>
-    </dependency>
   </dependencies>
   <build>
     <plugins>
diff --git a/vespa-application-maven-plugin/src/main/java/com/yahoo/container/plugin/mojo/ApplicationMojo.java b/vespa-application-maven-plugin/src/main/java/com/yahoo/container/plugin/mojo/ApplicationMojo.java
index f93ee2feaa1..16a2d121654 100644
--- a/vespa-application-maven-plugin/src/main/java/com/yahoo/container/plugin/mojo/ApplicationMojo.java
+++ b/vespa-application-maven-plugin/src/main/java/com/yahoo/container/plugin/mojo/ApplicationMojo.java
@@ -1,7 +1,6 @@
 // Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
 package com.yahoo.container.plugin.mojo;
 
-import org.apache.commons.io.FileUtils;
 import org.apache.maven.plugin.AbstractMojo;
 import org.apache.maven.plugin.MojoExecutionException;
 import org.apache.maven.plugins.annotations.LifecyclePhase;
@@ -13,10 +12,13 @@ import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.IOException;
+import java.io.UncheckedIOException;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
+import java.nio.file.Path;
 import java.util.Collections;
 import java.util.List;
+import java.util.stream.Stream;
 
 /**
  * @author Tony Vaagenes
@@ -96,13 +98,27 @@ public class ApplicationMojo extends AbstractMojo {
     private void copyApplicationPackage(File applicationPackage, File applicationDestination) throws MojoExecutionException {
         if (applicationPackage.exists()) {
             try {
-                FileUtils.copyDirectory(applicationPackage, applicationDestination);
-            } catch (IOException e) {
+                copyDirectory(applicationPackage.toPath(), applicationDestination.toPath());
+            } catch (Exception e) {
                 throw new MojoExecutionException("Failed copying applicationPackage", e);
             }
         }
     }
 
+    private static void copyDirectory(Path source, Path destination) {
+        try (Stream<Path> fileStreams = Files.walk(source)) {
+            fileStreams.forEachOrdered(sourcePath -> {
+                try {
+                    Files.copy(sourcePath, source.resolve(destination.relativize(sourcePath)));
+                } catch (IOException e) {
+                    throw new UncheckedIOException(e);
+                }
+            });
+        } catch (IOException e) {
+            throw new UncheckedIOException(e);
+        }
+    }
+
     private void copyModuleBundles(File moduleDir, File componentsDir) throws MojoExecutionException {
         File moduleTargetDir = new File(moduleDir, "target");
         if (moduleTargetDir.exists()) {