Delete temporary directory after exit

sisu-equinox/sisu-equinox-embedder/src/main/java/org/eclipse/sisu/equinox/embedder/internal/DefaultEquinoxEmbedder.java

@@ -20,6 +20,11 @@
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.nio.file.FileVisitResult;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.SimpleFileVisitor;
+import java.nio.file.attribute.BasicFileAttributes;
 
 import org.codehaus.plexus.component.annotations.Component;
 import org.codehaus.plexus.component.annotations.Requirement;
@@ -193,6 +198,31 @@ private String copyToTempFolder(File configDir) throws IOException {
  if (!(equinoxTmp.delete() && equinoxTmp.mkdirs())) {
  throw new IOException("Could not create temp dir " + equinoxTmp);
  }
+
+ final Path directory = equinoxTmp.toPath();
+ Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
+ @Override
+ public void run() {
+ try {
+ Files.walkFileTree(directory, new SimpleFileVisitor<Path>() {
+ @Override
+ public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
+ Files.delete(file);
+ return FileVisitResult.CONTINUE;
+ }
+
+ @Override
+ public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
+ Files.delete(dir);
+ return FileVisitResult.CONTINUE;
+ }
+ });
+ } catch (IOException e) {
+ getLogger().warn("Could not delete temporary directory " + directory, e);
+ }
+ }
+ }));
+
  File tempConfigDir = new File(equinoxTmp, "config");
  if (!(tempConfigDir.mkdirs())) {
  throw new IOException("Could not create temp config dir " + tempConfigDir);