Update examples to use Path instead of File

Change-Id: Ie9e1dc99b60d9f9bdb5d02b8a4e09ff43aa7ac56

src/main/java/com/googlesource/gerrit/plugins/cookbook/pluginprovider/HelloSshCommand.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/cookbook/pluginprovider/HelloSshCommand.java b/src/main/java/com/googlesource/gerrit/plugins/cookbook/pluginprovider/HelloSshCommand.java
index b1da6de..a2b678e 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/cookbook/pluginprovider/HelloSshCommand.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/cookbook/pluginprovider/HelloSshCommand.java
@@ -20,9 +20,9 @@
 import com.google.gerrit.sshd.SshCommand;
 import com.google.inject.Inject;
 
-import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
+import java.nio.file.Path;
 
 /**
  * SSH command defined by dynamically registered plugins.
@@ -31,7 +31,7 @@
 @CommandMetaData(name = "print", description = "Print content of the plugin file")
 public final class HelloSshCommand extends SshCommand {
   private final String pluginName;
-  private final File pluginDir;
+  private final Path pluginDir;
 
   @Inject
   public HelloSshCommand(@PluginName String pluginName, SitePaths sitePaths) {
@@ -41,11 +41,11 @@
 
   @Override
   public void run() {
-    File pluginFile = new File(pluginDir, pluginName + ".ssh");
+    Path pluginPath = pluginDir.resolve(pluginName + ".ssh");
     try {
-      Files.copy(pluginFile.toPath(), out);
+      Files.copy(pluginPath, out);
     } catch (IOException e) {
-      throw new RuntimeException("Cannot read plugin content of " + pluginFile,
+      throw new RuntimeException("Cannot read plugin content of " + pluginPath,
           e);
     }
   }

src/main/java/com/googlesource/gerrit/plugins/cookbook/pluginprovider/HelloSshPluginProvider.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/cookbook/pluginprovider/HelloSshPluginProvider.java b/src/main/java/com/googlesource/gerrit/plugins/cookbook/pluginprovider/HelloSshPluginProvider.java
index a7d7268..de213e7 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/cookbook/pluginprovider/HelloSshPluginProvider.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/cookbook/pluginprovider/HelloSshPluginProvider.java
@@ -22,7 +22,7 @@
 
 import org.eclipse.jgit.internal.storage.file.FileSnapshot;
 
-import java.io.File;
+import java.nio.file.Path;
 
 /**
  * Dynamic provider of Gerrit plugins derived by *.ssh files under $GERRIT_SITE/plugins.
@@ -46,22 +46,22 @@
   }
 
   @Override
-  public boolean handles(File srcFile) {
-    return srcFile.getName().endsWith(SSH_EXT);
+  public boolean handles(Path srcPath) {
+    return srcPath.getFileName().toString().endsWith(SSH_EXT);
   }
 
   @Override
-  public String getPluginName(File srcFile) {
-    String srcFileName = srcFile.getName();
-    return srcFileName.substring(0, srcFileName.length() - SSH_EXT.length());
+  public String getPluginName(Path srcPath) {
+    String name = srcPath.getFileName().toString();
+    return name.substring(0, name.length() - SSH_EXT.length());
   }
 
   @Override
-  public ServerPlugin get(File srcFile, FileSnapshot snapshot,
+  public ServerPlugin get(Path srcPath, FileSnapshot snapshot,
       PluginDescription pluginDescriptor) throws InvalidPluginException {
-    String name = getPluginName(srcFile);
+    String name = getPluginName(srcPath);
     return new ServerPlugin(name, pluginDescriptor.canonicalUrl,
-        pluginDescriptor.user, srcFile, snapshot,
+        pluginDescriptor.user, srcPath, snapshot,
         new HelloSshPluginContentScanner(name), pluginDescriptor.dataDir,
         getClass().getClassLoader());
   }