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.CollectSpliterators$1Splitr implements java.util.Spliterator<T>, java.util.function.Consumer<T>
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.google.common.collect.CollectSpliterators$1Splitr
  super_class: java.lang.Object
{
  T holder;
    descriptor: Ljava/lang/Object;
    flags: (0x0000) 
    Signature: TT;

  private final java.util.Spliterator val$fromSpliterator;
    descriptor: Ljava/util/Spliterator;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  private final java.util.function.Predicate val$predicate;
    descriptor: Ljava/util/function/Predicate;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  void <init>(java.util.Spliterator, java.util.function.Predicate);
    descriptor: (Ljava/util/Spliterator;Ljava/util/function/Predicate;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.google.common.collect.CollectSpliterators$1Splitr this
         0: .line 146
            aload 0 /* this */
            aload 1
            putfield com.google.common.collect.CollectSpliterators$1Splitr.val$fromSpliterator:Ljava/util/Spliterator;
            aload 0 /* this */
            aload 2
            putfield com.google.common.collect.CollectSpliterators$1Splitr.val$predicate:Ljava/util/function/Predicate;
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 147
            aload 0 /* this */
            aconst_null
            putfield com.google.common.collect.CollectSpliterators$1Splitr.holder:Ljava/lang/Object;
         2: .line 146
            return
        end local 0 // com.google.common.collect.CollectSpliterators$1Splitr this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lcom/google/common/collect/CollectSpliterators$1Splitr;
    MethodParameters:
                     Name  Flags
      val$fromSpliterator  final
      val$predicate        final

  public void accept();
    descriptor: (Ljava/lang/Object;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.google.common.collect.CollectSpliterators$1Splitr this
        start local 1 // java.lang.Object t
         0: .line 151
            aload 0 /* this */
            aload 1 /* t */
            putfield com.google.common.collect.CollectSpliterators$1Splitr.holder:Ljava/lang/Object;
         1: .line 152
            return
        end local 1 // java.lang.Object t
        end local 0 // com.google.common.collect.CollectSpliterators$1Splitr this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/google/common/collect/CollectSpliterators$1Splitr;
            0    2     1     t  TT;
    Signature: (TT;)V
    MethodParameters:
      Name  Flags
      t     

  public boolean tryAdvance(java.util.function.Consumer<? super T>);
    descriptor: (Ljava/util/function/Consumer;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // com.google.common.collect.CollectSpliterators$1Splitr this
        start local 1 // java.util.function.Consumer action
         0: .line 156
            goto 9
         1: .line 158
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.google.common.collect.CollectSpliterators$1Splitr.val$predicate:Ljava/util/function/Predicate;
            aload 0 /* this */
            getfield com.google.common.collect.CollectSpliterators$1Splitr.holder:Ljava/lang/Object;
            invokeinterface java.util.function.Predicate.test:(Ljava/lang/Object;)Z
            ifeq 8
         2: .line 159
            aload 1 /* action */
            aload 0 /* this */
            getfield com.google.common.collect.CollectSpliterators$1Splitr.holder:Ljava/lang/Object;
            invokeinterface java.util.function.Consumer.accept:(Ljava/lang/Object;)V
         3: .line 163
            aload 0 /* this */
            aconst_null
            putfield com.google.common.collect.CollectSpliterators$1Splitr.holder:Ljava/lang/Object;
         4: .line 160
            iconst_1
            ireturn
         5: .line 162
      StackMap locals:
      StackMap stack: java.lang.Throwable
            astore 2
         6: .line 163
            aload 0 /* this */
            aconst_null
            putfield com.google.common.collect.CollectSpliterators$1Splitr.holder:Ljava/lang/Object;
         7: .line 164
            aload 2
            athrow
         8: .line 163
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aconst_null
            putfield com.google.common.collect.CollectSpliterators$1Splitr.holder:Ljava/lang/Object;
         9: .line 156
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.google.common.collect.CollectSpliterators$1Splitr.val$fromSpliterator:Ljava/util/Spliterator;
            aload 0 /* this */
            invokeinterface java.util.Spliterator.tryAdvance:(Ljava/util/function/Consumer;)Z
            ifne 1
        10: .line 166
            iconst_0
            ireturn
        end local 1 // java.util.function.Consumer action
        end local 0 // com.google.common.collect.CollectSpliterators$1Splitr this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   11     0    this  Lcom/google/common/collect/CollectSpliterators$1Splitr;
            0   11     1  action  Ljava/util/function/Consumer<-TT;>;
      Exception table:
        from    to  target  type
           1     3       5  any
    Signature: (Ljava/util/function/Consumer<-TT;>;)Z
    MethodParameters:
        Name  Flags
      action  

  public java.util.Spliterator<T> trySplit();
    descriptor: ()Ljava/util/Spliterator;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=1
        start local 0 // com.google.common.collect.CollectSpliterators$1Splitr this
         0: .line 171
            aload 0 /* this */
            getfield com.google.common.collect.CollectSpliterators$1Splitr.val$fromSpliterator:Ljava/util/Spliterator;
            invokeinterface java.util.Spliterator.trySplit:()Ljava/util/Spliterator;
            astore 1 /* fromSplit */
        start local 1 // java.util.Spliterator fromSplit
         1: .line 172
            aload 1 /* fromSplit */
            ifnonnull 2
            aconst_null
            goto 3
      StackMap locals: java.util.Spliterator
      StackMap stack:
         2: aload 1 /* fromSplit */
            aload 0 /* this */
            getfield com.google.common.collect.CollectSpliterators$1Splitr.val$predicate:Ljava/util/function/Predicate;
            invokestatic com.google.common.collect.CollectSpliterators.filter:(Ljava/util/Spliterator;Ljava/util/function/Predicate;)Ljava/util/Spliterator;
      StackMap locals:
      StackMap stack: java.util.Spliterator
         3: areturn
        end local 1 // java.util.Spliterator fromSplit
        end local 0 // com.google.common.collect.CollectSpliterators$1Splitr this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    4     0       this  Lcom/google/common/collect/CollectSpliterators$1Splitr;
            1    4     1  fromSplit  Ljava/util/Spliterator<TT;>;
    Signature: ()Ljava/util/Spliterator<TT;>;

  public long estimateSize();
    descriptor: ()J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // com.google.common.collect.CollectSpliterators$1Splitr this
         0: .line 177
            aload 0 /* this */
            getfield com.google.common.collect.CollectSpliterators$1Splitr.val$fromSpliterator:Ljava/util/Spliterator;
            invokeinterface java.util.Spliterator.estimateSize:()J
            ldc 2
            ldiv
            lreturn
        end local 0 // com.google.common.collect.CollectSpliterators$1Splitr this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/CollectSpliterators$1Splitr;

  public java.util.Comparator<? super T> getComparator();
    descriptor: ()Ljava/util/Comparator;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.collect.CollectSpliterators$1Splitr this
         0: .line 182
            aload 0 /* this */
            getfield com.google.common.collect.CollectSpliterators$1Splitr.val$fromSpliterator:Ljava/util/Spliterator;
            invokeinterface java.util.Spliterator.getComparator:()Ljava/util/Comparator;
            areturn
        end local 0 // com.google.common.collect.CollectSpliterators$1Splitr this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/CollectSpliterators$1Splitr;
    Signature: ()Ljava/util/Comparator<-TT;>;

  public int characteristics();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.google.common.collect.CollectSpliterators$1Splitr this
         0: .line 187
            aload 0 /* this */
            getfield com.google.common.collect.CollectSpliterators$1Splitr.val$fromSpliterator:Ljava/util/Spliterator;
            invokeinterface java.util.Spliterator.characteristics:()I
         1: .line 188
            sipush 277
         2: .line 187
            iand
            ireturn
        end local 0 // com.google.common.collect.CollectSpliterators$1Splitr this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lcom/google/common/collect/CollectSpliterators$1Splitr;
}
Signature: Ljava/lang/Object;Ljava/util/Spliterator<TT;>;Ljava/util/function/Consumer<TT;>;
SourceFile: "CollectSpliterators.java"
EnclosingMethod: com.google.common.collect.CollectSpliterators.filter:(Ljava/util/Spliterator;Ljava/util/function/Predicate;)Ljava/util/Spliterator;
NestHost: com.google.common.collect.CollectSpliterators
InnerClasses:
  Splitr = com.google.common.collect.CollectSpliterators$1Splitr