Error building Spring Boot project

[bkushigian]

Bug Inducing Input

I cloned the Spring Boot Project and hooked into the spring-boot-project:spring-boot-actuator-autoconfigure subproject with the following diffs:

• build.gradle:

  @@ -16,6 +16,7 @@ allprojects {
      group "org.springframework.boot"
  
      repositories {
  +    mavenLocal()
          mavenCentral()
          if (version.contains('-')) {
              maven { url "https://repo.spring.io/milestone" }

• settings.gradle:

  @@ -1,5 +1,6 @@
   pluginManagement {
      repositories {
  +    mavenLocal()
          mavenCentral()
          gradlePluginPortal()
          maven {

• spring-boot-project/spring-boot-actuator-autoconfigure/build.gradle:

  @@ -6,8 +6,11 @@ plugins {
      id "org.springframework.boot.conventions"
      id "org.springframework.boot.deployed"
       id "org.springframework.boot.optional-dependencies"
  +  id "org.mutationtesting" version "0.0.1"
   }
  
  +apply plugin: "org.mutationtesting"
  +

  Building with ./gradlew :spring-boot-project:spring-boot-actuator-autoconfigure:build --stacktrace fails with the following relevant stack trace:

Result

Caused by: java.lang.NullPointerException
        at org.mutationtesting.major.providers.ReflectionProvider.getField(ReflectionProvider.java:79)
        at org.mutationtesting.major.plugin.MajorPluginTaskListener.getEnv(MajorPluginTaskListener.java:131)
        at org.mutationtesting.major.plugin.MajorPluginTaskListener.finished(MajorPluginTaskListener.java:112)

[bkushigian]

Looking into Major, this stacktrace corresponds to the following code in MajorPluginTaskListener:

    Enter enter = (Enter) ReflectionProvider.getField(javac, "enter");
    Object typeEnvs = ReflectionProvider.getField(enter, "typeEnvs");

This looks up javac.enter.typeEnvs which is needed to create the Env<AttrContext> (which is what the Mutator needs to mutate stuff). For some reason, this is coming back null.

[bkushigian]

This is an error with Major (reproduced without Gradle build)