diff --git a/eo-runtime/src/main/java/EOorg/EOeolang/EOseq.java b/eo-runtime/src/main/java/EOorg/EOeolang/EOseq.java
index b84c9631ac..463f9ae477 100644
--- a/eo-runtime/src/main/java/EOorg/EOeolang/EOseq.java
+++ b/eo-runtime/src/main/java/EOorg/EOeolang/EOseq.java
@@ -40,8 +40,8 @@
 
 /**
  * SEQ.
- * @checkstyle TypeNameCheck (5 lines)
  * @since 1.0
+ * @checkstyle TypeNameCheck (5 lines)
  */
 @Versionized
 @XmirObject(oname = "seq")
diff --git a/eo-runtime/src/main/java/org/eolang/Data.java b/eo-runtime/src/main/java/org/eolang/Data.java
index 05b2a11f96..43bb9c6860 100644
--- a/eo-runtime/src/main/java/org/eolang/Data.java
+++ b/eo-runtime/src/main/java/org/eolang/Data.java
@@ -288,11 +288,11 @@ private static String unescapeJavaString(final String str) {
                     if (next >= '0' && next <= '7') {
                         String code = String.valueOf(next);
                         ++idx;
-                        if ((idx < str.length() - 1) && str.charAt(idx + 1) >= '0'
+                        if (idx < str.length() - 1 && str.charAt(idx + 1) >= '0'
                             && str.charAt(idx + 1) <= '7') {
                             code += str.charAt(idx + 1);
                             ++idx;
-                            if ((idx < str.length() - 1) && str.charAt(idx + 1) >= '0'
+                            if (idx < str.length() - 1 && str.charAt(idx + 1) >= '0'
                                 && str.charAt(idx + 1) <= '7') {
                                 code += str.charAt(idx + 1);
                                 ++idx;
diff --git a/eo-runtime/src/main/java/org/eolang/PhDefault.java b/eo-runtime/src/main/java/org/eolang/PhDefault.java
index b2daa7111e..ea93d077c0 100644
--- a/eo-runtime/src/main/java/org/eolang/PhDefault.java
+++ b/eo-runtime/src/main/java/org/eolang/PhDefault.java
@@ -40,8 +40,8 @@
  * A simple object.
  *
  * The class is thread-safe.
- * @checkstyle DesignForExtensionCheck (500 lines)
  * @since 0.1
+ * @checkstyle DesignForExtensionCheck (500 lines)
  */
 @Versionized
 @SuppressWarnings({"PMD.TooManyMethods", "PMD.ConstructorShouldDoInitialization"})