class Name1 listing, partial rewriting of Singleton pattern introduction

report.tex

@@ -168,12 +168,50 @@ submission as the file \textit{analysis.xml}.
 \section{Structural Patterns}
 
 \subsection{TO REWRITE Singleton Pattern}
-Lots of false positives for the Singleton pattern. Example,
-com.fasterxml.jackson.core.sym.Name1 has a package private constructor and a
+Ensure a class only has one instance and provide a global point of access to it.
+The tool found thirteen instances with the Singleton pattern,
+doing a deeper analysis of the found instances we discovered that some of the results are false positives.
+Example, com.fasterxml.jackson.core.sym.Name1 has a package private constructor and a
 public static final instance of it, but reading the documentation the class
 represents (short) JSON string literals and therefore is clearly
 initialized by client code.
 
+\begin{lstlisting}[caption=Name1 class,language=java]
+public final class Name1 extends Name {
+    private final static Name1 EMPTY = new Name1("", 0, 0);
+    private final int q;
+
+    Name1(String name, int hash, int quad) {
+        super(name, hash);
+        q = quad;
+    }
+
+    public static Name1 getEmptyName() {
+        return EMPTY;
+    }
+
+    @Override
+    public boolean equals(int quad) {
+        return (quad == q);
+    }
+
+    @Override
+    public boolean equals(int quad1, int quad2) {
+        return (quad1 == q) && (quad2 == 0);
+    }
+
+    @Override
+    public boolean equals(int q1, int q2, int q3) {
+        return false;
+    }
+
+    @Override
+    public boolean equals(int[] quads, int qlen) {
+        return (qlen == 1 && quads[0] == q);
+    }
+}
+\end{lstlisting}
+
 (com.fasterxml.jackson.core omitted for brevity)
 
 \begin{description}