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. 
public final class com.google.common.base.Defaults
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: com.google.common.base.Defaults
  super_class: java.lang.Object
{
  private static final java.lang.Double DOUBLE_DEFAULT;
    descriptor: Ljava/lang/Double;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final java.lang.Float FLOAT_DEFAULT;
    descriptor: Ljava/lang/Float;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 32
            dconst_0
            invokestatic java.lang.Double.valueOf:(D)Ljava/lang/Double;
            putstatic com.google.common.base.Defaults.DOUBLE_DEFAULT:Ljava/lang/Double;
         1: .line 33
            fconst_0
            invokestatic java.lang.Float.valueOf:(F)Ljava/lang/Float;
            putstatic com.google.common.base.Defaults.FLOAT_DEFAULT:Ljava/lang/Float;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.google.common.base.Defaults this
         0: .line 30
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.google.common.base.Defaults this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/google/common/base/Defaults;

  public static <T> T defaultValue(java.lang.Class<T>);
    descriptor: (Ljava/lang/Class;)Ljava/lang/Object;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.Class type
         0: .line 42
            aload 0 /* type */
            invokestatic com.google.common.base.Preconditions.checkNotNull:(Ljava/lang/Object;)Ljava/lang/Object;
            pop
         1: .line 43
            aload 0 /* type */
            getstatic java.lang.Boolean.TYPE:Ljava/lang/Class;
            if_acmpne 3
         2: .line 44
            getstatic java.lang.Boolean.FALSE:Ljava/lang/Boolean;
            areturn
         3: .line 45
      StackMap locals:
      StackMap stack:
            aload 0 /* type */
            getstatic java.lang.Character.TYPE:Ljava/lang/Class;
            if_acmpne 5
         4: .line 46
            iconst_0
            invokestatic java.lang.Character.valueOf:(C)Ljava/lang/Character;
            areturn
         5: .line 47
      StackMap locals:
      StackMap stack:
            aload 0 /* type */
            getstatic java.lang.Byte.TYPE:Ljava/lang/Class;
            if_acmpne 7
         6: .line 48
            iconst_0
            invokestatic java.lang.Byte.valueOf:(B)Ljava/lang/Byte;
            areturn
         7: .line 49
      StackMap locals:
      StackMap stack:
            aload 0 /* type */
            getstatic java.lang.Short.TYPE:Ljava/lang/Class;
            if_acmpne 9
         8: .line 50
            iconst_0
            invokestatic java.lang.Short.valueOf:(S)Ljava/lang/Short;
            areturn
         9: .line 51
      StackMap locals:
      StackMap stack:
            aload 0 /* type */
            getstatic java.lang.Integer.TYPE:Ljava/lang/Class;
            if_acmpne 11
        10: .line 52
            iconst_0
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            areturn
        11: .line 53
      StackMap locals:
      StackMap stack:
            aload 0 /* type */
            getstatic java.lang.Long.TYPE:Ljava/lang/Class;
            if_acmpne 13
        12: .line 54
            lconst_0
            invokestatic java.lang.Long.valueOf:(J)Ljava/lang/Long;
            areturn
        13: .line 55
      StackMap locals:
      StackMap stack:
            aload 0 /* type */
            getstatic java.lang.Float.TYPE:Ljava/lang/Class;
            if_acmpne 15
        14: .line 56
            getstatic com.google.common.base.Defaults.FLOAT_DEFAULT:Ljava/lang/Float;
            areturn
        15: .line 57
      StackMap locals:
      StackMap stack:
            aload 0 /* type */
            getstatic java.lang.Double.TYPE:Ljava/lang/Class;
            if_acmpne 17
        16: .line 58
            getstatic com.google.common.base.Defaults.DOUBLE_DEFAULT:Ljava/lang/Double;
            areturn
        17: .line 60
      StackMap locals:
      StackMap stack:
            aconst_null
            areturn
        end local 0 // java.lang.Class type
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   18     0  type  Ljava/lang/Class<TT;>;
    Signature: <T:Ljava/lang/Object;>(Ljava/lang/Class<TT;>;)TT;
    RuntimeVisibleTypeAnnotations: 
      METHOD_RETURN
        org.checkerframework.checker.nullness.qual.Nullable()
    MethodParameters:
      Name  Flags
      type  
}
SourceFile: "Defaults.java"
    RuntimeInvisibleAnnotations: 
      com.google.common.annotations.GwtIncompatible()