https://openjdk.java.net/ 
public interface javax.imageio.metadata.IIOMetadataController
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: javax.imageio.metadata.IIOMetadataController
  super_class: java.lang.Object
{
  public abstract boolean activate(javax.imageio.metadata.IIOMetadata);
    descriptor: (Ljavax/imageio/metadata/IIOMetadata;)Z
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
          Name  Flags
      metadata  
}
SourceFile: "IIOMetadataController.java"