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 
public class org.eclipse.collections.impl.bag.mutable.MutableBagFactoryImpl implements org.eclipse.collections.api.factory.bag.MutableBagFactory
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.eclipse.collections.impl.bag.mutable.MutableBagFactoryImpl
  super_class: java.lang.Object
{
  public static final org.eclipse.collections.api.factory.bag.MutableBagFactory INSTANCE;
    descriptor: Lorg/eclipse/collections/api/factory/bag/MutableBagFactory;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 21
            new org.eclipse.collections.impl.bag.mutable.MutableBagFactoryImpl
            dup
            invokespecial org.eclipse.collections.impl.bag.mutable.MutableBagFactoryImpl.<init>:()V
            putstatic org.eclipse.collections.impl.bag.mutable.MutableBagFactoryImpl.INSTANCE:Lorg/eclipse/collections/api/factory/bag/MutableBagFactory;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.bag.mutable.MutableBagFactoryImpl this
         0: .line 19
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.eclipse.collections.impl.bag.mutable.MutableBagFactoryImpl this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/eclipse/collections/impl/bag/mutable/MutableBagFactoryImpl;

  public <T> org.eclipse.collections.api.bag.MutableBag<T> empty();
    descriptor: ()Lorg/eclipse/collections/api/bag/MutableBag;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.bag.mutable.MutableBagFactoryImpl this
         0: .line 26
            invokestatic org.eclipse.collections.impl.bag.mutable.HashBag.newBag:()Lorg/eclipse/collections/impl/bag/mutable/HashBag;
            areturn
        end local 0 // org.eclipse.collections.impl.bag.mutable.MutableBagFactoryImpl this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/eclipse/collections/impl/bag/mutable/MutableBagFactoryImpl;
    Signature: <T:Ljava/lang/Object;>()Lorg/eclipse/collections/api/bag/MutableBag<TT;>;

  public <T> org.eclipse.collections.api.bag.MutableBag<T> with(T[]);
    descriptor: ([Ljava/lang/Object;)Lorg/eclipse/collections/api/bag/MutableBag;
    flags: (0x0081) ACC_PUBLIC, ACC_VARARGS
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // org.eclipse.collections.impl.bag.mutable.MutableBagFactoryImpl this
        start local 1 // java.lang.Object[] elements
         0: .line 32
            aload 1 /* elements */
            invokestatic org.eclipse.collections.impl.bag.mutable.HashBag.newBagWith:([Ljava/lang/Object;)Lorg/eclipse/collections/impl/bag/mutable/HashBag;
            areturn
        end local 1 // java.lang.Object[] elements
        end local 0 // org.eclipse.collections.impl.bag.mutable.MutableBagFactoryImpl this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0      this  Lorg/eclipse/collections/impl/bag/mutable/MutableBagFactoryImpl;
            0    1     1  elements  [Ljava/lang/Object;
    Signature: <T:Ljava/lang/Object;>([TT;)Lorg/eclipse/collections/api/bag/MutableBag<TT;>;
    MethodParameters:
          Name  Flags
      elements  

  public <T> org.eclipse.collections.api.bag.MutableBag<T> withAll(java.lang.Iterable<? extends T>);
    descriptor: (Ljava/lang/Iterable;)Lorg/eclipse/collections/api/bag/MutableBag;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // org.eclipse.collections.impl.bag.mutable.MutableBagFactoryImpl this
        start local 1 // java.lang.Iterable items
         0: .line 38
            aload 1 /* items */
            invokestatic org.eclipse.collections.impl.bag.mutable.HashBag.newBag:(Ljava/lang/Iterable;)Lorg/eclipse/collections/impl/bag/mutable/HashBag;
            areturn
        end local 1 // java.lang.Iterable items
        end local 0 // org.eclipse.collections.impl.bag.mutable.MutableBagFactoryImpl this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0   this  Lorg/eclipse/collections/impl/bag/mutable/MutableBagFactoryImpl;
            0    1     1  items  Ljava/lang/Iterable<+TT;>;
    Signature: <T:Ljava/lang/Object;>(Ljava/lang/Iterable<+TT;>;)Lorg/eclipse/collections/api/bag/MutableBag<TT;>;
    MethodParameters:
       Name  Flags
      items  

  public <T> org.eclipse.collections.api.bag.MutableBag<T> fromStream(java.util.stream.Stream<? extends T>);
    descriptor: (Ljava/util/stream/Stream;)Lorg/eclipse/collections/api/bag/MutableBag;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.eclipse.collections.impl.bag.mutable.MutableBagFactoryImpl this
        start local 1 // java.util.stream.Stream stream
         0: .line 44
            aload 1 /* stream */
            invokedynamic get()Ljava/util/function/Supplier;
              Bootstrap: invokestatic java.lang.invoke.LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
                Method arguments:
                  ()Ljava/lang/Object;
                  org/eclipse/collections/impl/bag/mutable/HashBag.newBag()Lorg/eclipse/collections/impl/bag/mutable/HashBag; (6)
                  ()Lorg/eclipse/collections/impl/bag/mutable/HashBag;
            invokestatic java.util.stream.Collectors.toCollection:(Ljava/util/function/Supplier;)Ljava/util/stream/Collector;
            invokeinterface java.util.stream.Stream.collect:(Ljava/util/stream/Collector;)Ljava/lang/Object;
            checkcast org.eclipse.collections.api.bag.MutableBag
            areturn
        end local 1 // java.util.stream.Stream stream
        end local 0 // org.eclipse.collections.impl.bag.mutable.MutableBagFactoryImpl this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0    this  Lorg/eclipse/collections/impl/bag/mutable/MutableBagFactoryImpl;
            0    1     1  stream  Ljava/util/stream/Stream<+TT;>;
    Signature: <T:Ljava/lang/Object;>(Ljava/util/stream/Stream<+TT;>;)Lorg/eclipse/collections/api/bag/MutableBag<TT;>;
    MethodParameters:
        Name  Flags
      stream  
}
SourceFile: "MutableBagFactoryImpl.java"
InnerClasses:
  public final Lookup = java.lang.invoke.MethodHandles$Lookup of java.lang.invoke.MethodHandles