diff --git a/.gitignore b/.gitignore
index d2039503..cd6749ef 100644
--- a/.gitignore
+++ b/.gitignore
@@ -29,4 +29,6 @@ pom.xml.versionsBackup
 *.bak
 *.orig
 *.old
-*.md.html
\ No newline at end of file
+*.md.html
+/.apt_generated/
+/.apt_generated_tests/
diff --git a/src/main/java/com/exasol/clusterlogs/LogPatternDetector.java b/src/main/java/com/exasol/clusterlogs/LogPatternDetector.java
index 77bbcb60..b7f11b85 100644
--- a/src/main/java/com/exasol/clusterlogs/LogPatternDetector.java
+++ b/src/main/java/com/exasol/clusterlogs/LogPatternDetector.java
@@ -43,7 +43,9 @@ public class LogPatternDetector {
 
     /**
      * Check whether a certain pattern appears in a log message.
-     * <h4>Implementation notes</h4>
+     * <p>
+     * <b>Implementation notes</b>
+     * </p>
      * <p>
      * We use {@code find} to locate the log file(s) matching the filename search pattern. This {@code find} command
      * then executes a command that searches the files.