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. 
class com.google.common.collect.Multisets$ImmutableEntry<E> extends com.google.common.collect.Multisets$AbstractEntry<E> implements java.io.Serializable
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.google.common.collect.Multisets$ImmutableEntry
  super_class: com.google.common.collect.Multisets$AbstractEntry
{
  private final E element;
    descriptor: Ljava/lang/Object;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: TE;
    RuntimeVisibleTypeAnnotations: 
      FIELD
        org.checkerframework.checker.nullness.qual.Nullable()

  private final int count;
    descriptor: I
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private static final long serialVersionUID;
    descriptor: J
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 0

  void <init>(E, );
    descriptor: (Ljava/lang/Object;I)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.google.common.collect.Multisets$ImmutableEntry this
        start local 1 // java.lang.Object element
        start local 2 // int count
         0: .line 251
            aload 0 /* this */
            invokespecial com.google.common.collect.Multisets$AbstractEntry.<init>:()V
         1: .line 252
            aload 0 /* this */
            aload 1 /* element */
            putfield com.google.common.collect.Multisets$ImmutableEntry.element:Ljava/lang/Object;
         2: .line 253
            aload 0 /* this */
            iload 2 /* count */
            putfield com.google.common.collect.Multisets$ImmutableEntry.count:I
         3: .line 254
            iload 2 /* count */
            ldc "count"
            invokestatic com.google.common.collect.CollectPreconditions.checkNonnegative:(ILjava/lang/String;)I
            pop
         4: .line 255
            return
        end local 2 // int count
        end local 1 // java.lang.Object element
        end local 0 // com.google.common.collect.Multisets$ImmutableEntry this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    5     0     this  Lcom/google/common/collect/Multisets$ImmutableEntry<TE;>;
            0    5     1  element  TE;
            0    5     2    count  I
    Signature: (TE;I)V
    RuntimeVisibleTypeAnnotations: 
      METHOD_FORMAL_PARAMETER
        org.checkerframework.checker.nullness.qual.Nullable()
    MethodParameters:
         Name  Flags
      element  
      count    

  public final E getElement();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.collect.Multisets$ImmutableEntry this
         0: .line 259
            aload 0 /* this */
            getfield com.google.common.collect.Multisets$ImmutableEntry.element:Ljava/lang/Object;
            areturn
        end local 0 // com.google.common.collect.Multisets$ImmutableEntry this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/Multisets$ImmutableEntry<TE;>;
    Signature: ()TE;
    RuntimeVisibleTypeAnnotations: 
      METHOD_RETURN
        org.checkerframework.checker.nullness.qual.Nullable()

  public final int getCount();
    descriptor: ()I
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.collect.Multisets$ImmutableEntry this
         0: .line 264
            aload 0 /* this */
            getfield com.google.common.collect.Multisets$ImmutableEntry.count:I
            ireturn
        end local 0 // com.google.common.collect.Multisets$ImmutableEntry this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/Multisets$ImmutableEntry<TE;>;

  public com.google.common.collect.Multisets$ImmutableEntry<E> nextInBucket();
    descriptor: ()Lcom/google/common/collect/Multisets$ImmutableEntry;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.collect.Multisets$ImmutableEntry this
         0: .line 268
            aconst_null
            areturn
        end local 0 // com.google.common.collect.Multisets$ImmutableEntry this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/Multisets$ImmutableEntry<TE;>;
    Signature: ()Lcom/google/common/collect/Multisets$ImmutableEntry<TE;>;
}
Signature: <E:Ljava/lang/Object;>Lcom/google/common/collect/Multisets$AbstractEntry<TE;>;Ljava/io/Serializable;
SourceFile: "Multisets.java"
NestHost: com.google.common.collect.Multisets
InnerClasses:
  abstract AbstractEntry = com.google.common.collect.Multisets$AbstractEntry of com.google.common.collect.Multisets
  ImmutableEntry = com.google.common.collect.Multisets$ImmutableEntry of com.google.common.collect.Multisets