Add missing metadata of Spring Boot configuration properties

The Maven compiler is now configured to allow running the Spring Boot Configuration
Processor. Furthermore, a dependency to Spring Boot Autoconfigure Processor has been
added to the autoconfigure module so that metadata is also generated for the
autoconfiguration conditions.

Fixes gh-1267

Signed-off-by: Thomas Vitale <ThomasVitale@users.noreply.github.com>

Author: ThomasVitale

pom.xml

@@ -141,6 +141,16 @@
 							<artifactId>nullaway</artifactId>
 							<version>${nullaway.version}</version>
 						</path>
+						<path>
+							<groupId>org.springframework.boot</groupId>
+							<artifactId>spring-boot-autoconfigure-processor</artifactId>
+							<version>${spring-boot.version}</version>
+						</path>
+						<path>
+							<groupId>org.springframework.boot</groupId>
+							<artifactId>spring-boot-configuration-processor</artifactId>
+							<version>${spring-boot.version}</version>
+						</path>
 					</annotationProcessorPaths>
 				</configuration>
 			</plugin>

spring-shell-core-autoconfigure/pom.xml

@@ -47,6 +47,12 @@
 			<version>${spring-boot.version}</version>
 			<optional>true</optional>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-autoconfigure-processor</artifactId>
+			<version>${spring-boot.version}</version>
+			<optional>true</optional>
+		</dependency>
 
         <!-- Optional dependencies -->
         <dependency>