Fix NexusIQ security vulnerabilities

Remove Spring Boot Jackson dependencies and replace with Gson
implementation.

Fix potential source of NullPointerException.

Change-Id: I3a715a023223b596e8a0979f0e0d381511fca32d
Issue-ID: AAF-529
Signed-off-by: Lee, Tian (tl5884) <TianL@amdocs.com>
diff --git a/sidecar/rproxy/pom.xml b/sidecar/rproxy/pom.xml
index 004f569..09a0d06 100644
--- a/sidecar/rproxy/pom.xml
+++ b/sidecar/rproxy/pom.xml
@@ -68,6 +68,10 @@
 					<groupId>org.springframework.boot</groupId>
 					<artifactId>spring-boot-starter-tomcat</artifactId>
 				</exclusion>
+				<exclusion>
+					<groupId>org.springframework.boot</groupId>
+					<artifactId>spring-boot-starter-json</artifactId>
+				</exclusion>
 			</exclusions>
 		</dependency>
 
@@ -88,11 +92,6 @@
 
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-actuator</artifactId>
-		</dependency>
-
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
@@ -108,7 +107,6 @@
 		<dependency>
 			<groupId>com.google.code.gson</groupId>
 			<artifactId>gson</artifactId>
-			<version>2.8.5</version><!--$NO-MVN-MAN-VER$-->
 		</dependency>
 
 		<dependency>