[errorprone] Add missing javadoc summary

See
https://google.github.io/styleguide/javaguide.html#s7.2-summary-fragment

Change-Id: Id3e65942de725294f7159a300d8a4aa8d207f53d
diff --git a/java/com/google/gitiles/AbstractHttpFilter.java b/java/com/google/gitiles/AbstractHttpFilter.java
index f1a7657..51035b7 100644
--- a/java/com/google/gitiles/AbstractHttpFilter.java
+++ b/java/com/google/gitiles/AbstractHttpFilter.java
@@ -42,7 +42,12 @@
     // Default implementation does nothing.
   }
 
-  /** @see #doFilter(ServletRequest, ServletResponse, FilterChain) */
+  /**
+   * The FilterChain passed in to this method allows the Filter to pass on the request and response
+   * to the next entity in the chain.
+   *
+   * @see #doFilter(ServletRequest, ServletResponse, FilterChain)
+   */
   public abstract void doFilter(HttpServletRequest req, HttpServletResponse res, FilterChain chain)
       throws IOException, ServletException;
 }
diff --git a/java/com/google/gitiles/BaseServlet.java b/java/com/google/gitiles/BaseServlet.java
index 860ffd8..e0ccce3 100644
--- a/java/com/google/gitiles/BaseServlet.java
+++ b/java/com/google/gitiles/BaseServlet.java
@@ -133,6 +133,8 @@
   }
 
   /**
+   * Get default format
+   *
    * @param req in-progress request.
    * @return the default {@link FormatType} used when {@code ?format=} is not specified.
    */
@@ -317,6 +319,8 @@
   }
 
   /**
+   * Start to render text.
+   *
    * @see #startRenderText(HttpServletRequest, HttpServletResponse)
    * @param req in-progress request.
    * @param res in-progress response.
diff --git a/java/com/google/gitiles/CommitJsonData.java b/java/com/google/gitiles/CommitJsonData.java
index 5f94a70..478d98f 100644
--- a/java/com/google/gitiles/CommitJsonData.java
+++ b/java/com/google/gitiles/CommitJsonData.java
@@ -64,7 +64,7 @@
     List<Diff> treeDiff;
   }
 
-  /** @see DiffEntry */
+  /** Diff @see DiffEntry */
   static class Diff {
     String type;
     String oldId;
@@ -108,7 +108,7 @@
     if (cd.message != null) {
       result.message = cd.message;
     }
-    if (cd.notes != null && !cd.notes.isEmpty()){
+    if (cd.notes != null && !cd.notes.isEmpty()) {
       result.notes = cd.notes;
     }
     if (cd.diffEntries != null) {
diff --git a/java/com/google/gitiles/GitilesAccess.java b/java/com/google/gitiles/GitilesAccess.java
index 505098a..55d6922 100644
--- a/java/com/google/gitiles/GitilesAccess.java
+++ b/java/com/google/gitiles/GitilesAccess.java
@@ -68,21 +68,31 @@
       throws ServiceNotEnabledException, ServiceNotAuthorizedException, IOException;
 
   /**
+   * Get user key.
+   *
    * @return an opaque object that uniquely identifies the end-user making the request, and supports
    *     {@link Object#equals(Object)} and {@link Object#hashCode()}. Never null.
    */
   Object getUserKey();
 
-  /** @return the repository name associated with the request. */
+  /**
+   * Get repository name.
+   *
+   * @return the repository name associated with the request.
+   */
   String getRepositoryName();
 
   /**
+   * Get repository description.
+   *
    * @return the description attached to the repository of this request.
    * @throws IOException an error occurred reading the description string from the repository.
    */
   RepositoryDescription getRepositoryDescription() throws IOException;
 
   /**
+   * Get configuration.
+   *
    * @return configuration to apply to the host/repository for this request.
    * @throws IOException an error occurred reading the configuration.
    */
diff --git a/java/com/google/gitiles/GitilesView.java b/java/com/google/gitiles/GitilesView.java
index e721c26..6a9e1c1 100644
--- a/java/com/google/gitiles/GitilesView.java
+++ b/java/com/google/gitiles/GitilesView.java
@@ -617,7 +617,11 @@
     return b.toString();
   }
 
-  /** @return an escaped, relative URL representing this view. */
+  /**
+   * Create relative URL representing this view.
+   *
+   * @return an escaped, relative URL representing this view.
+   */
   public String toUrl() {
     StringBuilder url = new StringBuilder(servletPath).append('/');
     ListMultimap<String, String> params = this.params;
@@ -726,6 +730,8 @@
   }
 
   /**
+   * Get breadcrumbs.
+   *
    * @return a list of maps with "text" and "url" keys for all file paths leading up to the path
    *     represented by this view. All URLs allow auto-diving into one-entry subtrees; see also
    *     {@link #getBreadcrumbs(List)}.
@@ -737,6 +743,8 @@
   private static final EnumSet<Type> NON_HTML_TYPES = EnumSet.of(Type.DESCRIBE, Type.ARCHIVE);
 
   /**
+   * Get breadcrumbs.
+   *
    * @param hasSingleTree list of booleans, one per path entry in this view's path excluding the
    *     leaf. True entries indicate the tree at that path only has a single entry that is another
    *     tree.
diff --git a/java/com/google/gitiles/IdentRevFilter.java b/java/com/google/gitiles/IdentRevFilter.java
index ef3ddf8..bc29373 100644
--- a/java/com/google/gitiles/IdentRevFilter.java
+++ b/java/com/google/gitiles/IdentRevFilter.java
@@ -51,7 +51,11 @@
     return this;
   }
 
-  /** @return whether the given person matches the author filter. */
+  /**
+   * Whether the given person matches the author filter.
+   *
+   * @return whether the given person matches the author filter.
+   */
   @VisibleForTesting
   boolean matchesPerson(PersonIdent person) {
     // Equivalent to --fixed-strings, to avoid pathological performance of Java
diff --git a/java/com/google/gitiles/Paginator.java b/java/com/google/gitiles/Paginator.java
index 3060e45..47c4470 100644
--- a/java/com/google/gitiles/Paginator.java
+++ b/java/com/google/gitiles/Paginator.java
@@ -160,6 +160,8 @@
   }
 
   /**
+   * Get previous start.
+   *
    * @return the ID at the start of the page of results preceding this one, or null if this is the
    *     first page.
    */
@@ -168,6 +170,8 @@
   }
 
   /**
+   * Get next start.
+   *
    * @return the ID at the start of the page of results after this one, or null if this is the last
    *     page.
    */
@@ -176,12 +180,18 @@
     return nextStart;
   }
 
-  /** @return entry corresponding to a rename or copy at the given commit. */
+  /**
+   * Get rename.
+   *
+   * @return entry corresponding to a rename or copy at the given commit.
+   */
   public DiffEntry getRename(ObjectId commitId) {
     return renamed != null ? renamed.get(commitId) : null;
   }
 
   /**
+   * Get iterator over the commits in this walk.
+   *
    * @return an iterator over the commits in this walk.
    * @throws RevWalkException if an error occurred, wrapping the checked exception from {@link
    *     #next()}.
diff --git a/java/com/google/gitiles/blame/cache/BlameCache.java b/java/com/google/gitiles/blame/cache/BlameCache.java
index e7f9fca..57a9166 100644
--- a/java/com/google/gitiles/blame/cache/BlameCache.java
+++ b/java/com/google/gitiles/blame/cache/BlameCache.java
@@ -20,9 +20,17 @@
 import org.eclipse.jgit.lib.Repository;
 
 public interface BlameCache {
-  /** @return the blame of a path at a given commit. */
+  /**
+   * Gets the blame of a path at a given commit.
+   *
+   * @return the blame of a path at a given commit.
+   */
   List<Region> get(Repository repo, ObjectId commitId, String path) throws IOException;
 
-  /** @return the last commit that modified a path, starting at the given commit. */
+  /**
+   * Gets the last commit that modified a path.
+   *
+   * @return the last commit that modified a path, starting at the given commit.
+   */
   ObjectId findLastCommit(Repository repo, ObjectId commitId, String path) throws IOException;
 }
diff --git a/javatests/com/google/gitiles/TestGitilesServlet.java b/javatests/com/google/gitiles/TestGitilesServlet.java
index 036707c..df2be60 100644
--- a/javatests/com/google/gitiles/TestGitilesServlet.java
+++ b/javatests/com/google/gitiles/TestGitilesServlet.java
@@ -31,13 +31,13 @@
 
 /** Static utility methods for creating {@link GitilesServlet}s for testing. */
 public class TestGitilesServlet {
-  /** @see #create(TestRepository,GitwebRedirectFilter, BranchRedirect) */
+  /** Create GitilesServlet, @see #create(TestRepository,GitwebRedirectFilter, BranchRedirect) */
   public static GitilesServlet create(final TestRepository<DfsRepository> repo)
       throws ServletException {
     return create(repo, new GitwebRedirectFilter(), new BranchRedirect());
   }
 
-  /** @see #create(TestRepository,GitwebRedirectFilter, BranchRedirect) */
+  /** Create GitilesServlet, @see #create(TestRepository,GitwebRedirectFilter, BranchRedirect) */
   public static GitilesServlet create(
       final TestRepository<DfsRepository> repo, GitwebRedirectFilter gitwebRedirect)
       throws ServletException {