Issue checkstyle#614: Suppress all Idea Inspection violations

releasenotes-builder/config/checkstyle.properties

@@ -1,6 +1,6 @@
-checkstyle.suppressions.file=config/suppressions.xml
 checkstyle.header.file=https://raw.githubusercontent.com/checkstyle/checkstyle/master/config/java.header
-checkstyle.regexp.header.file=https://raw.githubusercontent.com/checkstyle/checkstyle/master/config/java_regexp.header
 checkstyle.importcontrol.file=config/import-control.xml
 checkstyle.importcontroltest.file=config/import-control-test.xml
+checkstyle.suppressions.file=config/suppressions.xml
 checkstyle.suppressions-xpath.file=https://raw.githubusercontent.com/checkstyle/checkstyle/master/config/suppressions-xpath.xml
+checkstyle.regexp.header.file=https://raw.githubusercontent.com/checkstyle/checkstyle/master/config/java_regexp.header

releasenotes-builder/src/main/java/com/github/checkstyle/Main.java

@@ -47,6 +47,7 @@ private Main() {
      * Entry point.
      *
      * @param args command line arguments.
+     * @noinspection UseOfSystemOutOrSystemErr, CallToSystemExit
      */
     public static void main(String... args) {
         int errorCounter;
@@ -63,7 +64,8 @@ public static void main(String... args) {
                 final Result notesBuilderResult = runGithubNotesBuilder(cliOptions);
                 errorCounter = notesBuilderResult.getErrorMessages().size();
                 if (errorCounter == 0) {
-                    publicationErrors = MainProcess.run(notesBuilderResult.getReleaseNotes(),
+                    publicationErrors = MainProcess.runMainProcess(
+                        notesBuilderResult.getReleaseNotes(),
                             cliOptions);
                 }
             }
@@ -122,6 +124,7 @@ private static Result runGithubNotesBuilder(CliOptions cliOptions)
      * Prints a list of elements in standard out.
      *
      * @param entities a list.
+     * @noinspection UseOfSystemOutOrSystemErr
      */
     private static void printListOf(List<String> entities) {
         System.out.println();

releasenotes-builder/src/main/java/com/github/checkstyle/MainProcess.java

@@ -75,7 +75,7 @@ private MainProcess() {
      * @throws IOException if I/O error occurs.
      * @throws TemplateException if an error occurs while generating freemarker template.
      */
-    public static List<String> run(Multimap<String, ReleaseNotesMessage> releaseNotes,
+    public static List<String> runMainProcess(Multimap<String, ReleaseNotesMessage> releaseNotes,
             CliOptions cliOptions) throws IOException, TemplateException {
         runPostGeneration(releaseNotes, cliOptions);
         return runPostPublication(cliOptions);

releasenotes-builder/src/main/java/com/github/checkstyle/github/NotesBuilder.java

@@ -28,7 +28,6 @@
 import java.util.List;
 import java.util.Optional;
 import java.util.Set;
-import java.util.stream.Collectors;
 
 import org.eclipse.jgit.api.Git;
 import org.eclipse.jgit.api.errors.GitAPIException;
@@ -54,6 +53,7 @@
  *
  * @author Andrei Selkin
  */
+@SuppressWarnings("deprecation")
 public final class NotesBuilder {
 
     /** Array elements separator. */
@@ -91,6 +91,7 @@ private NotesBuilder() {
      * @return a map which represents release notes.
      * @throws IOException if an I/O error occurs.
      * @throws GitAPIException if an error occurs when accessing Git API.
+     * @noinspection UseOfSystemOutOrSystemErr
      */
     public static Result buildResult(String localRepoPath, String authToken, String remoteRepoPath,
                                      String startRef, String endRef) throws IOException,
@@ -149,10 +150,9 @@ private static void buildResultWithLabel(String remoteRepoPath, Result result,
                 final String issueLabel = getIssueLabelFrom(issue);
                 if (issueLabel.isEmpty()) {
                     final String error = String.format(MESSAGE_NO_LABEL,
-                                                       issueNo,
-                                                       Arrays.stream(Constants.ISSUE_LABELS)
-                                                           .collect(Collectors.joining(SEPARATOR)),
-                                                       remoteRepoPath, issueNo);
+                        issueNo,
+                        String.join(SEPARATOR, Constants.ISSUE_LABELS),
+                        remoteRepoPath, issueNo);
                     result.addError(error);
                 }
                 final List<GHLabel> releaseLabels = getAllIssueLabels(issue);
@@ -310,7 +310,7 @@ private static Set<RevCommit> getCommitsForIssue(Set<RevCommit> commits, int iss
      */
     private static String getAuthorsOf(Set<RevCommit> commits) {
         final Set<String> commitAuthors = findCommitAuthors(commits);
-        return commitAuthors.stream().collect(Collectors.joining(SEPARATOR));
+        return String.join(SEPARATOR, commitAuthors);
     }
 
     /**

releasenotes-builder/src/main/java/com/github/checkstyle/publishers/MailingListPublisher.java

@@ -85,12 +85,12 @@ public MailingListPublisher(String postFilename, String username, String passwor
      */
     public void publish() throws MessagingException, IOException {
         final Properties props = System.getProperties();
-        props.put("mail.smtp.starttls.enable", true);
-        props.put("mail.smtp.host", SMTP_HOST);
-        props.put("mail.smtp.user", username);
-        props.put("mail.smtp.password", password);
-        props.put("mail.smtp.port", SMTP_PORT);
-        props.put("mail.smtp.auth", true);
+        props.setProperty("mail.smtp.starttls.enable", String.valueOf(Boolean.TRUE));
+        props.setProperty("mail.smtp.host", SMTP_HOST);
+        props.setProperty("mail.smtp.user", username);
+        props.setProperty("mail.smtp.password", password);
+        props.setProperty("mail.smtp.port", SMTP_PORT);
+        props.setProperty("mail.smtp.auth", String.valueOf(Boolean.TRUE));
 
         final Session session = Session.getInstance(props, null);
         final MimeMessage mimeMessage = new MimeMessage(session);

releasenotes-builder/src/test/java/com/github/checkstyle/github/CommitMessageTest.java

@@ -24,20 +24,29 @@
 
 public class CommitMessageTest {
 
+    /**
+     * @noinspection JUnitTestMethodWithNoAssertions
+     */
     @Test
     public void testIssue() {
         final CommitMessage message = new CommitMessage(
             "Issue #1487: workaround for cobertura at CheckstyleAntTask.java to get 100% coverage");
         Assert.assertTrue("Message should match issue/pull pattern", message.isIssueOrPull());
     }
 
+    /**
+     * @noinspection JUnitTestMethodWithNoAssertions
+     */
     @Test
     public void testPull() {
         final CommitMessage message = new CommitMessage(
             "Pull #9314: fix escaped char pattern in AvoidEscapedUnicodeCharactersCheck");
         Assert.assertTrue("Message should match issue/pull pattern", message.isIssueOrPull());
     }
 
+    /**
+     * @noinspection JUnitTestMethodWithNoAssertions
+     */
     @Test
     public void testRevert() {
         final CommitMessage message = new CommitMessage(
@@ -52,6 +61,9 @@ public void testRevert() {
             "5fe5bcee40e39eb6a23864f7f55128cbf2f10641", message.getRevertedCommitReference());
     }
 
+    /**
+     * @noinspection JUnitTestMethodWithNoAssertions
+     */
     @Test
     public void testRevertNotInBeginningOfMessage() {
         final CommitMessage message = new CommitMessage(
@@ -61,34 +73,49 @@ public void testRevertNotInBeginningOfMessage() {
         Assert.assertTrue("Message should match revert pattern", message.isRevert());
     }
 
+    /**
+     * @noinspection JUnitTestMethodWithNoAssertions
+     */
     @Test
     public void testReleaseIsIgnored() {
         final CommitMessage message = new CommitMessage(
             "[maven-release-plugin] prepare release checkstyle-8.35");
         Assert.assertTrue("Message should match ignore pattern", message.isIgnored());
     }
 
+    /**
+     * @noinspection JUnitTestMethodWithNoAssertions
+     */
     @Test
     public void testUpdateToIsIgnored() {
         final CommitMessage message = new CommitMessage(
             "update to 7.0-SNAPSHOT");
         Assert.assertTrue("Message should match ignore pattern", message.isIgnored());
     }
 
+    /**
+     * @noinspection JUnitTestMethodWithNoAssertions
+     */
     @Test
     public void testDocReleaseNotesIsIgnored() {
         final CommitMessage message = new CommitMessage(
             "doc: release notes 8.43");
         Assert.assertTrue("Message should match ignore pattern", message.isIgnored());
     }
 
+    /**
+     * @noinspection JUnitTestMethodWithNoAssertions
+     */
     @Test
     public void testConfigIsIgnored() {
         final CommitMessage message = new CommitMessage(
             "config: update to 8.42-SNAPSHOT");
         Assert.assertTrue("Message should match ignore pattern", message.isIgnored());
     }
 
+    /**
+     * @noinspection JUnitTestMethodWithNoAssertions
+     */
     @Test
     public void testDependencyIsIgnored() {
         final CommitMessage message = new CommitMessage(
@@ -111,27 +138,39 @@ public void testDependencyIsIgnored() {
         Assert.assertTrue("Message should match ignore pattern", message.isIgnored());
     }
 
+    /**
+     * @noinspection JUnitTestMethodWithNoAssertions
+     */
     @Test
     public void testInfraIsIgnored() {
         final CommitMessage message = new CommitMessage(
             "infra: update README to have links to travis.com");
         Assert.assertTrue("Message should match ignore pattern", message.isIgnored());
     }
 
+    /**
+     * @noinspection JUnitTestMethodWithNoAssertions
+     */
     @Test
     public void testMinorIsIgnored() {
         final CommitMessage message = new CommitMessage(
             "minor: refactor boolean expression to fix TC build");
         Assert.assertTrue("Message should match ignore pattern", message.isIgnored());
     }
 
+    /**
+     * @noinspection JUnitTestMethodWithNoAssertions
+     */
     @Test
     public void testSupplementalIsIgnored() {
         final CommitMessage message = new CommitMessage(
             "supplemental: divide description into paragraph for Issue #8928");
         Assert.assertTrue("Message should match ignore pattern", message.isIgnored());
     }
 
+    /**
+     * @noinspection JUnitTestMethodWithNoAssertions
+     */
     @Test
     public void testMarkersNotInBeginningOfMessage() {
         final CommitMessage message = new CommitMessage(
@@ -148,6 +187,9 @@ public void testMarkersNotInBeginningOfMessage() {
         Assert.assertFalse("Message should not match ignore pattern", message.isIgnored());
     }
 
+    /**
+     * @noinspection JUnitTestMethodWithNoAssertions
+     */
     @Test
     public void testUnclassifiedCommit() {
         final CommitMessage message = new CommitMessage(