https://github.com/google/guava/guava: Guava is a suite of core and expanded libraries that include utility classes, google's collections, io classes, and much much more. 
final class com.google.common.collect.SortedMultisets
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: com.google.common.collect.SortedMultisets
  super_class: java.lang.Object
{
  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.collect.SortedMultisets this
         0: .line 40
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.google.common.collect.SortedMultisets this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/SortedMultisets;

  private static <E> E getElementOrThrow(com.google.common.collect.Multiset$Entry<E>);
    descriptor: (Lcom/google/common/collect/Multiset$Entry;)Ljava/lang/Object;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.google.common.collect.Multiset$Entry entry
         0: .line 162
            aload 0 /* entry */
            ifnonnull 2
         1: .line 163
            new java.util.NoSuchElementException
            dup
            invokespecial java.util.NoSuchElementException.<init>:()V
            athrow
         2: .line 165
      StackMap locals:
      StackMap stack:
            aload 0 /* entry */
            invokeinterface com.google.common.collect.Multiset$Entry.getElement:()Ljava/lang/Object;
            areturn
        end local 0 // com.google.common.collect.Multiset$Entry entry
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0  entry  Lcom/google/common/collect/Multiset$Entry<TE;>;
    Signature: <E:Ljava/lang/Object;>(Lcom/google/common/collect/Multiset$Entry<TE;>;)TE;
    MethodParameters:
       Name  Flags
      entry  

  private static <E> E getElementOrNull(com.google.common.collect.Multiset$Entry<E>);
    descriptor: (Lcom/google/common/collect/Multiset$Entry;)Ljava/lang/Object;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.collect.Multiset$Entry entry
         0: .line 169
            aload 0 /* entry */
            ifnonnull 1
            aconst_null
            goto 2
      StackMap locals:
      StackMap stack:
         1: aload 0 /* entry */
            invokeinterface com.google.common.collect.Multiset$Entry.getElement:()Ljava/lang/Object;
      StackMap locals:
      StackMap stack: java.lang.Object
         2: areturn
        end local 0 // com.google.common.collect.Multiset$Entry entry
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0  entry  Lcom/google/common/collect/Multiset$Entry<TE;>;
    Signature: <E:Ljava/lang/Object;>(Lcom/google/common/collect/Multiset$Entry<TE;>;)TE;
    RuntimeVisibleTypeAnnotations: 
      METHOD_FORMAL_PARAMETER
        org.checkerframework.checker.nullness.qual.Nullable()
    MethodParameters:
       Name  Flags
      entry  
}
SourceFile: "SortedMultisets.java"
NestMembers:
  com.google.common.collect.SortedMultisets$ElementSet  com.google.common.collect.SortedMultisets$NavigableElementSet
InnerClasses:
  public abstract Entry = com.google.common.collect.Multiset$Entry of com.google.common.collect.Multiset
  ElementSet = com.google.common.collect.SortedMultisets$ElementSet of com.google.common.collect.SortedMultisets
  NavigableElementSet = com.google.common.collect.SortedMultisets$NavigableElementSet of com.google.common.collect.SortedMultisets
    RuntimeInvisibleAnnotations: 
      com.google.common.annotations.GwtCompatible(emulated = true)