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.Iterables$10 implements com.google.common.base.Function<java.lang.Iterable<? extends T>, java.util.Iterator<? extends T>>
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.google.common.collect.Iterables$10
  super_class: java.lang.Object
{
  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.collect.Iterables$10 this
         0: .line 1023
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.google.common.collect.Iterables$10 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/collect/Iterables$10;

  public java.util.Iterator<? extends T> apply(java.lang.Iterable<? extends T>);
    descriptor: (Ljava/lang/Iterable;)Ljava/util/Iterator;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // com.google.common.collect.Iterables$10 this
        start local 1 // java.lang.Iterable iterable
         0: .line 1026
            aload 1 /* iterable */
            invokeinterface java.lang.Iterable.iterator:()Ljava/util/Iterator;
            areturn
        end local 1 // java.lang.Iterable iterable
        end local 0 // com.google.common.collect.Iterables$10 this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0      this  Lcom/google/common/collect/Iterables$10;
            0    1     1  iterable  Ljava/lang/Iterable<+TT;>;
    Signature: (Ljava/lang/Iterable<+TT;>;)Ljava/util/Iterator<+TT;>;
    MethodParameters:
          Name  Flags
      iterable  

  public java.lang.Object apply(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=2, locals=2, args_size=2
         0: .line 1
            aload 0
            aload 1
            checkcast java.lang.Iterable
            invokevirtual com.google.common.collect.Iterables$10.apply:(Ljava/lang/Iterable;)Ljava/util/Iterator;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: Ljava/lang/Object;Lcom/google/common/base/Function<Ljava/lang/Iterable<+TT;>;Ljava/util/Iterator<+TT;>;>;
SourceFile: "Iterables.java"
EnclosingMethod: com.google.common.collect.Iterables.toIterator:()Lcom/google/common/base/Function;
NestHost: com.google.common.collect.Iterables
InnerClasses:
  com.google.common.collect.Iterables$10