Delete some default constructors and assignment operators

They are unused, but if someone used them they would lead to
problems since they would copy the internal raw pointers
and the destructor would cause double delete

Source/cmDependsJavaParserHelper.h

@@ -24,6 +24,10 @@ public:
   cmDependsJavaParserHelper();
   ~cmDependsJavaParserHelper();
 
+  cmDependsJavaParserHelper(const cmDependsJavaParserHelper&) = delete;
+  cmDependsJavaParserHelper& operator=(const cmDependsJavaParserHelper&) =
+    delete;
+
   int ParseString(const char* str, int verb);
   int ParseFile(const char* file);