src/share/classes/javax/annotation/processing/AbstractProcessor.java

*** 26,35 ****
--- 26,36 ----
  package javax.annotation.processing;
  
  import java.util.Set;
  import java.util.HashSet;
  import java.util.Collections;
+ import java.util.Objects;
  import javax.lang.model.element.*;
  import javax.lang.model.SourceVersion;
  import javax.tools.Diagnostic;
  
  /**
*** 144,155 ****
       * @throws IllegalStateException if this method is called more than once.
       */
      public synchronized void init(ProcessingEnvironment processingEnv) {
          if (initialized)
              throw new IllegalStateException("Cannot call init more than once.");
!         if (processingEnv == null)
!             throw new NullPointerException("Tool provided null ProcessingEnvironment");
  
          this.processingEnv = processingEnv;
          initialized = true;
      }
  
--- 145,155 ----
       * @throws IllegalStateException if this method is called more than once.
       */
      public synchronized void init(ProcessingEnvironment processingEnv) {
          if (initialized)
              throw new IllegalStateException("Cannot call init more than once.");
!         Objects.requireNonNull(processingEnv, "Tool provided null ProcessingEnvironment");
  
          this.processingEnv = processingEnv;
          initialized = true;
      }