https://spring.io/projects/spring-boot: Spring Boot Actuator (Pivotal Software, Inc.) 
public interface org.springframework.boot.actuate.management.HeapDumpWebEndpoint$HeapDumper
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.springframework.boot.actuate.management.HeapDumpWebEndpoint$HeapDumper
  super_class: java.lang.Object
{
  public abstract void dumpHeap(java.io.File, boolean);
    descriptor: (Ljava/io/File;Z)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.io.IOException, java.lang.InterruptedException
    MethodParameters:
      Name  Flags
      file  
      live  
}
SourceFile: "HeapDumpWebEndpoint.java"
NestHost: org.springframework.boot.actuate.management.HeapDumpWebEndpoint
InnerClasses:
  protected abstract HeapDumper = org.springframework.boot.actuate.management.HeapDumpWebEndpoint$HeapDumper of org.springframework.boot.actuate.management.HeapDumpWebEndpoint
    RuntimeVisibleAnnotations: 
      java.lang.FunctionalInterface()