BAEL-4384: Invoke a private method using reflection (#10470)

* - initial commit of sample code

* BAEL-4209:  Moving the localized exception module into core-java-exceptions-3.

* BAEL-4209: Removed the old files for localizing exception messages.

* Added test case to explain invoking a private method.

* Made the code example more useful so we don't look like we're hacking another framework.

* Forgot to make the test class and method package-private.

* Incorporated Spring ReflectionTestUtils into the code sample.

* Updated the Spring Test version to match the article.

core-java-modules/core-java-reflection-2/pom.xml

@@ -14,6 +14,15 @@
         <relativePath>../</relativePath>
     </parent>
     
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-test</artifactId>
+            <version>${spring.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+    
     <build>
         <finalName>core-java-reflection-2</finalName>
         <resources>
@@ -40,5 +49,6 @@
         <maven-compiler-plugin.version>3.8.0</maven-compiler-plugin.version>
         <source.version>1.8</source.version>
         <target.version>1.8</target.version>
+        <spring.version>5.3.4</spring.version>
     </properties>
 </project>