{"action":"created","comment":{"url":"https://api.github.com/repos/apache/spark/pulls/comments/100900474","pull_request_review_id":21617118,"id":100900474,"diff_hunk":"@@ -135,13 +135,13 @@ abstract class MLWriter extends BaseReadWrite with Logging {\n }\n \n /**\n- * Trait for classes that provide [[MLWriter]].\n+ * Trait for classes that provide `MLWriter`.","path":"mllib/src/main/scala/org/apache/spark/ml/util/ReadWrite.scala","position":23,"original_position":23,"commit_id":"90bf25b9c89433da3d80b76d9f4b20d9adb186d8","original_commit_id":"90bf25b9c89433da3d80b76d9f4b20d9adb186d8","user":{"login":"jkbradley","id":5084283,"avatar_url":"https://avatars.githubusercontent.com/u/5084283?v=3","gravatar_id":"","url":"https://api.github.com/users/jkbradley","html_url":"https://github.com/jkbradley","followers_url":"https://api.github.com/users/jkbradley/followers","following_url":"https://api.github.com/users/jkbradley/following{/other_user}","gists_url":"https://api.github.com/users/jkbradley/gists{/gist_id}","starred_url":"https://api.github.com/users/jkbradley/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jkbradley/subscriptions","organizations_url":"https://api.github.com/users/jkbradley/orgs","repos_url":"https://api.github.com/users/jkbradley/repos","events_url":"https://api.github.com/users/jkbradley/events{/privacy}","received_events_url":"https://api.github.com/users/jkbradley/received_events","type":"User","site_admin":false},"body":"@HyukjinKwon Are you sure this is a problem?  I just tried generating the docs using Java 8, and the link with ```[[MLWriter]]``` worked for both Scala and Java.  Maybe it is fine for some cases (like this, where MLWriter is part of the package being compiled) and not for other cases (such as when the class is from a dependency).","created_at":"2017-02-13T21:18:48Z","updated_at":"2017-02-13T21:18:49Z","html_url":"https://github.com/apache/spark/pull/16741#discussion_r100900474","pull_request_url":"https://api.github.com/repos/apache/spark/pulls/16741","_links":{"self":{"href":"https://api.github.com/repos/apache/spark/pulls/comments/100900474"},"html":{"href":"https://github.com/apache/spark/pull/16741#discussion_r100900474"},"pull_request":{"href":"https://api.github.com/repos/apache/spark/pulls/16741"}}},"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/16741","id":103732104,"html_url":"https://github.com/apache/spark/pull/16741","diff_url":"https://github.com/apache/spark/pull/16741.diff","patch_url":"https://github.com/apache/spark/pull/16741.patch","issue_url":"https://api.github.com/repos/apache/spark/issues/16741","number":16741,"state":"closed","locked":false,"title":"[SPARK-19402][DOCS] Support LaTex inline formula correctly and fix warnings in Scala/Java APIs generation","user":{"login":"HyukjinKwon","id":6477701,"avatar_url":"https://avatars.githubusercontent.com/u/6477701?v=3","gravatar_id":"","url":"https://api.github.com/users/HyukjinKwon","html_url":"https://github.com/HyukjinKwon","followers_url":"https://api.github.com/users/HyukjinKwon/followers","following_url":"https://api.github.com/users/HyukjinKwon/following{/other_user}","gists_url":"https://api.github.com/users/HyukjinKwon/gists{/gist_id}","starred_url":"https://api.github.com/users/HyukjinKwon/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/HyukjinKwon/subscriptions","organizations_url":"https://api.github.com/users/HyukjinKwon/orgs","repos_url":"https://api.github.com/users/HyukjinKwon/repos","events_url":"https://api.github.com/users/HyukjinKwon/events{/privacy}","received_events_url":"https://api.github.com/users/HyukjinKwon/received_events","type":"User","site_admin":false},"body":"## What changes were proposed in this pull request?\r\n\r\nThis PR proposes three things as below:\r\n\r\n- Support LaTex inline-formula, `\\( ... \\)` in Scala API documentation\r\n  It seems currently,  \r\n\r\n  ```\r\n  \\( ... \\)\r\n  ```\r\n\r\n  are rendered as they are, for example,\r\n\r\n  <img width=\"345\" alt=\"2017-01-30 10 01 13\" src=\"https://cloud.githubusercontent.com/assets/6477701/22423960/ab37d54a-e737-11e6-9196-4f6229c0189c.png\">\r\n\r\n  It seems mistakenly more backslashes were added.\r\n\r\n- Fix warnings Scaladoc/Javadoc generation\r\n  This PR fixes t two types of warnings as below:\r\n\r\n  ```\r\n  [warn] .../spark/sql/catalyst/src/main/scala/org/apache/spark/sql/Row.scala:335: Could not find any member to link for \"UnsupportedOperationException\".\r\n  [warn]   /**\r\n  [warn]   ^\r\n  ```\r\n\r\n  ```\r\n  [warn] .../spark/sql/core/src/main/scala/org/apache/spark/sql/internal/VariableSubstitution.scala:24: Variable var undefined in comment for class VariableSubstitution in class VariableSubstitution\r\n  [warn]  * `${var}`, `${system:var}` and `${env:var}`.\r\n  [warn]      ^\r\n  ```\r\n\r\n- Fix Javadoc8 break\r\n  ```\r\n  [error] .../spark/mllib/target/java/org/apache/spark/ml/PredictionModel.java:7: error: reference not found\r\n  [error]  *                       E.g., {@link VectorUDT} for vector features.\r\n  [error]                                       ^\r\n  [error] .../spark/mllib/target/java/org/apache/spark/ml/PredictorParams.java:12: error: reference not found\r\n  [error]    *                          E.g., {@link VectorUDT} for vector features.\r\n  [error]                                            ^\r\n  [error] .../spark/mllib/target/java/org/apache/spark/ml/Predictor.java:10: error: reference not found\r\n  [error]  *                       E.g., {@link VectorUDT} for vector features.\r\n  [error]                                       ^\r\n  [error] .../spark/sql/hive/target/java/org/apache/spark/sql/hive/HiveAnalysis.java:5: error: reference not found\r\n  [error]  * Note that, this rule must be run after {@link PreprocessTableInsertion}.\r\n  [error]                                                  ^\r\n  ```\r\n\r\n## How was this patch tested?\r\n\r\nManually via `sbt unidoc` and `jeykil build`.","created_at":"2017-01-30T13:04:43Z","updated_at":"2017-02-13T21:18:49Z","closed_at":"2017-02-01T13:28:53Z","merged_at":null,"merge_commit_sha":"ec7515c5f4ca99420f9e72f3bbd1c2b601282f4a","assignee":null,"assignees":[],"milestone":null,"commits_url":"https://api.github.com/repos/apache/spark/pulls/16741/commits","review_comments_url":"https://api.github.com/repos/apache/spark/pulls/16741/comments","review_comment_url":"https://api.github.com/repos/apache/spark/pulls/comments{/number}","comments_url":"https://api.github.com/repos/apache/spark/issues/16741/comments","statuses_url":"https://api.github.com/repos/apache/spark/statuses/90bf25b9c89433da3d80b76d9f4b20d9adb186d8","head":{"label":"HyukjinKwon:warn-and-break","ref":"warn-and-break","sha":"90bf25b9c89433da3d80b76d9f4b20d9adb186d8","user":{"login":"HyukjinKwon","id":6477701,"avatar_url":"https://avatars.githubusercontent.com/u/6477701?v=3","gravatar_id":"","url":"https://api.github.com/users/HyukjinKwon","html_url":"https://github.com/HyukjinKwon","followers_url":"https://api.github.com/users/HyukjinKwon/followers","following_url":"https://api.github.com/users/HyukjinKwon/following{/other_user}","gists_url":"https://api.github.com/users/HyukjinKwon/gists{/gist_id}","starred_url":"https://api.github.com/users/HyukjinKwon/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/HyukjinKwon/subscriptions","organizations_url":"https://api.github.com/users/HyukjinKwon/orgs","repos_url":"https://api.github.com/users/HyukjinKwon/repos","events_url":"https://api.github.com/users/HyukjinKwon/events{/privacy}","received_events_url":"https://api.github.com/users/HyukjinKwon/received_events","type":"User","site_admin":false},"repo":{"id":42300713,"name":"spark","full_name":"HyukjinKwon/spark","owner":{"login":"HyukjinKwon","id":6477701,"avatar_url":"https://avatars.githubusercontent.com/u/6477701?v=3","gravatar_id":"","url":"https://api.github.com/users/HyukjinKwon","html_url":"https://github.com/HyukjinKwon","followers_url":"https://api.github.com/users/HyukjinKwon/followers","following_url":"https://api.github.com/users/HyukjinKwon/following{/other_user}","gists_url":"https://api.github.com/users/HyukjinKwon/gists{/gist_id}","starred_url":"https://api.github.com/users/HyukjinKwon/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/HyukjinKwon/subscriptions","organizations_url":"https://api.github.com/users/HyukjinKwon/orgs","repos_url":"https://api.github.com/users/HyukjinKwon/repos","events_url":"https://api.github.com/users/HyukjinKwon/events{/privacy}","received_events_url":"https://api.github.com/users/HyukjinKwon/received_events","type":"User","site_admin":false},"private":false,"html_url":"https://github.com/HyukjinKwon/spark","description":"Mirror 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