https://github.com/eclipse/eclipse-collections/eclipse-collections: Eclipse Collections is a collections framework for Java. It has JDK-compatible List, Set and Map implementations with a rich API and set of utility classes that work with any JDK compatible Collections, Arrays, Maps or Strings. The iteration protocol was inspired by the Smalltalk collection framework.
  • Craig P. Motlin
  • Donald Raab
  • Mohammad A. Rezaei
  • Hiroshi Ito
  • Nikhil J. Nanivadekar 
final class org.eclipse.collections.impl.block.factory.primitive.BooleanPredicates$NotBooleanPredicate implements org.eclipse.collections.api.block.predicate.primitive.BooleanPredicate
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: org.eclipse.collections.impl.block.factory.primitive.BooleanPredicates$NotBooleanPredicate
  super_class: java.lang.Object
{
  private static final long serialVersionUID;
    descriptor: J
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 1

  private final org.eclipse.collections.api.block.predicate.primitive.BooleanPredicate negate;
    descriptor: Lorg/eclipse/collections/api/block/predicate/primitive/BooleanPredicate;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private void <init>(org.eclipse.collections.api.block.predicate.primitive.BooleanPredicate);
    descriptor: (Lorg/eclipse/collections/api/block/predicate/primitive/BooleanPredicate;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.eclipse.collections.impl.block.factory.primitive.BooleanPredicates$NotBooleanPredicate this
        start local 1 // org.eclipse.collections.api.block.predicate.primitive.BooleanPredicate negate
         0: .line 178
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 180
            aload 0 /* this */
            aload 1 /* negate */
            putfield org.eclipse.collections.impl.block.factory.primitive.BooleanPredicates$NotBooleanPredicate.negate:Lorg/eclipse/collections/api/block/predicate/primitive/BooleanPredicate;
         2: .line 181
            return
        end local 1 // org.eclipse.collections.api.block.predicate.primitive.BooleanPredicate negate
        end local 0 // org.eclipse.collections.impl.block.factory.primitive.BooleanPredicates$NotBooleanPredicate this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Lorg/eclipse/collections/impl/block/factory/primitive/BooleanPredicates$NotBooleanPredicate;
            0    3     1  negate  Lorg/eclipse/collections/api/block/predicate/primitive/BooleanPredicate;
    MethodParameters:
        Name  Flags
      negate  

  public boolean accept(boolean);
    descriptor: (Z)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.eclipse.collections.impl.block.factory.primitive.BooleanPredicates$NotBooleanPredicate this
        start local 1 // boolean actual
         0: .line 186
            aload 0 /* this */
            getfield org.eclipse.collections.impl.block.factory.primitive.BooleanPredicates$NotBooleanPredicate.negate:Lorg/eclipse/collections/api/block/predicate/primitive/BooleanPredicate;
            iload 1 /* actual */
            invokeinterface org.eclipse.collections.api.block.predicate.primitive.BooleanPredicate.accept:(Z)Z
            ifeq 1
            iconst_0
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_1
      StackMap locals:
      StackMap stack: int
         2: ireturn
        end local 1 // boolean actual
        end local 0 // org.eclipse.collections.impl.block.factory.primitive.BooleanPredicates$NotBooleanPredicate this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Lorg/eclipse/collections/impl/block/factory/primitive/BooleanPredicates$NotBooleanPredicate;
            0    3     1  actual  Z
    MethodParameters:
        Name  Flags
      actual  
}
SourceFile: "BooleanPredicates.java"
NestHost: org.eclipse.collections.impl.block.factory.primitive.BooleanPredicates
InnerClasses:
  private final NotBooleanPredicate = org.eclipse.collections.impl.block.factory.primitive.BooleanPredicates$NotBooleanPredicate of org.eclipse.collections.impl.block.factory.primitive.BooleanPredicates