Close repository using try-with-resources

Change-Id: Ia1c233a68df62cd2bdc6053dc2e20fe57c30c6d9
Signed-off-by: Edwin Kempin <ekempin@google.com>

src/main/java/com/googlesource/gerrit/plugins/xdocs/XDocServlet.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/xdocs/XDocServlet.java b/src/main/java/com/googlesource/gerrit/plugins/xdocs/XDocServlet.java
index d63502d..ebae46c 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/xdocs/XDocServlet.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/xdocs/XDocServlet.java
@@ -141,8 +141,7 @@
           projectControl);
       String revB = getRevision(key.revisionB, projectControl);
 
-      Repository repo = repoManager.openRepository(key.project);
-      try {
+      try (Repository repo = repoManager.openRepository(key.project)) {
         ObjectId revId =
             resolveRevision(repo,
                 key.diffMode == DiffMode.NO_DIFF
@@ -185,8 +184,6 @@
         }
         rsc.send(req, res);
         return;
-      } finally {
-        repo.close();
       }
     } catch (RepositoryNotFoundException | NoSuchProjectException
         | ResourceNotFoundException | AuthException | RevisionSyntaxException e) {

src/main/java/com/googlesource/gerrit/plugins/xdocs/XDocWebLink.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/xdocs/XDocWebLink.java b/src/main/java/com/googlesource/gerrit/plugins/xdocs/XDocWebLink.java
index 1d7cf4e..5ec6172 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/xdocs/XDocWebLink.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/xdocs/XDocWebLink.java
@@ -113,36 +113,31 @@
     }
 
     Project.NameKey p = new Project.NameKey(projectName);
-    try {
-      Repository repo = repoManager.openRepository(p);
-      try {
-        ObjectId revId = repo.resolve(revision);
-        if (revId == null) {
-          return null;
-        }
-        Resource rsc = docCache.get(formatter, p, fileName, revId, null, null);
-        if (rsc != Resource.NOT_FOUND) {
-          StringBuilder url = new StringBuilder();
-          if (framed) {
-            url.append("#/x/");
-          } else {
-            url.append("plugins/");
-          }
-          url.append(pluginName);
-          url.append(XDocServlet.PATH_PREFIX);
-          url.append(Url.encode(projectName));
-          if (revision != null && !Constants.HEAD.equals(revision)) {
-            url.append("/rev/");
-            url.append(Url.encode(revision));
-          }
-          url.append("/");
-          url.append(fileName);
-          return url.toString();
+    try (Repository repo = repoManager.openRepository(p)) {
+      ObjectId revId = repo.resolve(revision);
+      if (revId == null) {
+        return null;
+      }
+      Resource rsc = docCache.get(formatter, p, fileName, revId, null, null);
+      if (rsc != Resource.NOT_FOUND) {
+        StringBuilder url = new StringBuilder();
+        if (framed) {
+          url.append("#/x/");
         } else {
-          return null;
+          url.append("plugins/");
         }
-      } finally {
-        repo.close();
+        url.append(pluginName);
+        url.append(XDocServlet.PATH_PREFIX);
+        url.append(Url.encode(projectName));
+        if (revision != null && !Constants.HEAD.equals(revision)) {
+          url.append("/rev/");
+          url.append(Url.encode(revision));
+        }
+        url.append("/");
+        url.append(fileName);
+        return url.toString();
+      } else {
+        return null;
       }
     } catch (IOException e) {
       log.error("Failed to check for project documentation", e);