Mapping XmlConfiguration properties to Pojo using Spring's DataBinders

name = "spark_jobs.xml"
source = {LinkedHashMap@1644}  size = 7
 0 = {LinkedHashMap$Entry@1968} "sparkAppsToMonitor.sparkAppLaunchConfiguration[0].resource[0]" -> "app1.jar"
 1 = {LinkedHashMap$Entry@1969} "sparkAppsToMonitor.sparkAppLaunchConfiguration[0].resource[1]" -> "app11.jar"
 2 = {LinkedHashMap$Entry@1970} "sparkAppsToMonitor.sparkAppLaunchConfiguration[0].name" -> "app1"
 3 = {LinkedHashMap$Entry@1971} "sparkAppsToMonitor.sparkAppLaunchConfiguration[1].resource[0]" -> "app2.jar"
 4 = {LinkedHashMap$Entry@1972} "sparkAppsToMonitor.sparkAppLaunchConfiguration[1].resource[1]" -> "app22.jar"
 5 = {LinkedHashMap$Entry@1973} "sparkAppsToMonitor.sparkAppLaunchConfiguration[1].name" -> "app2"
 6 = {LinkedHashMap$Entry@1974} "sparkAppsToMonitor.version" -> "10.2"
 
 name = "applicationConfig: [classpath:/application.yaml]"
 source = {LinkedHashMap@2007}  size = 7
  0 = {LinkedHashMap$Entry@2010} "sparkAppsToMonitor.version" -> "10.2"
  1 = {LinkedHashMap$Entry@2011} "sparkAppsToMonitor.apps[0].name" -> "app1"
  2 = {LinkedHashMap$Entry@2012} "sparkAppsToMonitor.apps[0].resources[0].resource" -> "app1.jar"
  3 = {LinkedHashMap$Entry@2013} "sparkAppsToMonitor.apps[0].resources[1].resource" -> "app11.jar"
  4 = {LinkedHashMap$Entry@2014} "sparkAppsToMonitor.apps[1].name" -> "app2"
  5 = {LinkedHashMap$Entry@2015} "sparkAppsToMonitor.apps[1].resources[0].resource" -> "app2.jar"
  6 = {LinkedHashMap$Entry@2016} "sparkAppsToMonitor.apps[1].resources[1].resource" -> "app22.jar"

To Generate Metadata from the configuration using spring-boot-configuration process

Use Kapt

              <executions>
                  <!--https://kotlinlang.org/docs/reference/kapt.html-->
                  <execution>
                      <id>kapt</id>
                      <goals>
                          <goal>kapt</goal>
                      </goals>
                      <configuration>
                          <sourceDirs>
                              <sourceDir>src/main/kotlin</sourceDir>
                              <sourceDir>src/main/kotlin</sourceDir>
                          </sourceDirs>
                          <annotationProcessorPaths>
                              <!-- Specify your annotation processors here. -->
                              <annotationProcessorPath>
                                  <groupId>org.springframework.boot</groupId>
                                  <artifactId>spring-boot-configuration-processor</artifactId>
                                  <version>${spring-boot.version}</version>
                              </annotationProcessorPath>
                          </annotationProcessorPaths>
                      </configuration>
                  </execution>
                  <execution>
                      <id>compile</id>
                      <phase>compile</phase>
                      <goals>
                          <goal>compile</goal>
                      </goals>
                  </execution>
                  <execution>
                      <id>test-compile</id>
                      <phase>test-compile</phase>
                      <goals>
                          <goal>test-compile</goal>
                      </goals>
                  </execution>
              </executions>

Issues

1. Lombok and Kotlin Answer Lombok annotations are not supported

[WARNING] Unable to create directory /home/srini/Development/Projects/kotlin_lessons/target/kaptStubs/compile
[WARNING] Duplicate source root: /home/srini/Development/Projects/kotlin_lessons/src/main/kotlin
[WARNING] /home/srini/Development/Projects/kotlin_lessons/target/kaptStubs/compile/error/NonExistentClass.java:3: warning: Can't initialize javac processor due to (most likely) a class loader problem: java.lang.NoClassDefFoundError: com/sun/tools/javac/processing/JavacProcessingEnvironment
[WARNING] 

[WARNING] public final class NonExistentClass {
[WARNING]              ^
[WARNING]   	at lombok.javac.apt.LombokProcessor.init(LombokProcessor.java:83)
[WARNING]   	at lombok.core.AnnotationProcessor$JavacDescriptor.want(AnnotationProcessor.java:87)
[WARNING]   	at lombok.core.AnnotationProcessor.init(AnnotationProcessor.java:140)
[WARNING]   	at lombok.launch.AnnotationProcessorHider$AnnotationProcessor.init(AnnotationProcessor.java:69)
[WARNING]   	at com.sun.tools.javac.processing.JavacProcessingEnvironment$ProcessorState.<init>(JavacProcessingEnvironment.java:500)
[WARNING]   	at com.sun.tools.javac.processing.JavacProcessingEnvironment$DiscoveredProcessors$ProcessorStateIterator.next(JavacProcessingEnvironment.java:597)
[WARNING]   	at com.sun.tools.javac.processing.JavacProcessingEnvironment.discoverAndRunProcs(JavacProcessingEnvironment.java:690)
[WARNING]   	at com.sun.tools.javac.processing.JavacProcessingEnvironment.access$1800(JavacProcessingEnvironment.java:91)
[WARNING]   	at com.sun.tools.javac.processing.JavacProcessingEnvironment$Round.run(JavacProcessingEnvironment.java:1035)
[WARNING]   	at com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:1176)

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