diff --git a/src/main/java/edu/hm/hafner/analysis/parser/CargoCheckParser.java b/src/main/java/edu/hm/hafner/analysis/parser/CargoCheckParser.java
index b3cbd3ac8..07dcb539f 100644
--- a/src/main/java/edu/hm/hafner/analysis/parser/CargoCheckParser.java
+++ b/src/main/java/edu/hm/hafner/analysis/parser/CargoCheckParser.java
@@ -17,52 +17,52 @@
 import edu.hm.hafner.analysis.Severity;
 
 /**
- * A parser for {@code rustc} compiler messages in the JSON format emitted by {@code cargo check --message-format
- * json}.
+ * A parser for {@code rustc} compiler messages in the JSON format emitted by {@code cargo check --message-format json}.
+ * .
  */
 public class CargoCheckParser extends IssueParser {
     private static final long serialVersionUID = 7953467739178377581L;
 
-    /** The {@link #REASON} associated with messages that have code analysis information */
+    /** The {@link #REASON} associated with messages that have code analysis information. */
     private static final String ANALYSIS_MESSAGE_REASON = "compiler-message";
 
-    /** Top-level key indicating the reason for a message to be emitted, we only care about compiler-message */
+    /** Top-level key indicating the reason for a message to be emitted, we only care about compiler-message. */
     private static final String REASON = "reason";
 
-    /** Top-level key containing the code analysis message */
+    /** Top-level key containing the code analysis message. */
     private static final String MESSAGE = "message";
 
-    /** Key for {@code message.code}, an object containing the message category */
+    /** Key for {@code message.code}, an object containing the message category. */
     private static final String MESSAGE_CODE = "code";
 
-    /** Key for {@code message.code.code}, a string representation of the message category */
+    /** Key for {@code message.code.code}, a string representation of the message category. */
     private static final String MESSAGE_CODE_CATEGORY = "code";
 
-    /** Key for {@code message.rendered}, the rendered string representation of the message */
+    /** Key for {@code message.rendered}, the rendered string representation of the message. */
     private static final String MESSAGE_RENDERED = "message";
 
-    /** Key for {@code message.level}, the string representation of the message severity */
+    /** Key for {@code message.level}, the string representation of the message severity. */
     private static final String MESSAGE_LEVEL = "level";
 
-    /** Key for {@code message.spans}, an array of message location information */
+    /** Key for {@code message.spans}, an array of message location information. */
     private static final String MESSAGE_SPANS = "spans";
 
-    /** Key for {@code message.spans.is_primary}, a boolean indicating if this is the primary error location" */
+    /** Key for {@code message.spans.is_primary}, a boolean indicating if this is the primary error location". */
     private static final String MESSAGE_SPAN_IS_PRIMARY = "is_primary";
 
-    /** Key for {@code message.spans.file_name}, a relative path to the file the message was emitted for */
+    /** Key for {@code message.spans.file_name}, a relative path to the file the message was emitted for. */
     private static final String MESSAGE_SPAN_FILE_NAME = "file_name";
 
-    /** Key for {@code message.spans.line_start}, the line number where the associated code starts */
+    /** Key for {@code message.spans.line_start}, the line number where the associated code starts. */
     private static final String MESSAGE_SPAN_LINE_START = "line_start";
 
-    /** Key for {@code message.spans.line_end}, the line number where the associated code ends */
+    /** Key for {@code message.spans.line_end}, the line number where the associated code ends. */
     private static final String MESSAGE_SPAN_LINE_END = "line_end";
 
-    /** Key for {@code message.spans.column_start}, the column number where the associated code starts */
+    /** Key for {@code message.spans.column_start}, the column number where the associated code starts. */
     private static final String MESSAGE_SPAN_COLUMN_START = "column_start";
 
-    /** Key for {@code message.spans.column_end}, the column number where the associated code ends */
+    /** Key for {@code message.spans.column_end}, the column number where the associated code ends. */
     private static final String MESSAGE_SPAN_COLUMN_END = "column_end";
 
     @Override
@@ -82,7 +82,9 @@ public Report parse(final ReaderFactory readerFactory) throws ParsingException,
 
     /**
      * Extract the compiler message from a cargo event if any is present.
-     * @param object A cargo event that may contain a compiler message.
+     *
+     * @param object
+     *         A cargo event that may contain a compiler message.
      *
      * @return a built {@link Issue} object if any was present.
      */
@@ -132,6 +134,9 @@ private Optional<CompilerMessageDetails> parseDetails(final JSONObject message)
         return Optional.empty();
     }
 
+    /**
+     * A simplified representation of a primary {@code span} object in the {@code message.spans} an array.
+     */
     private static final class CompilerMessageDetails {
         private final String fileName;
         private final int lineStart;