https://spring.io/projects/spring-boot: Spring Boot (Pivotal Software, Inc.) 
final class org.springframework.boot.context.properties.source.DefaultPropertyMapper implements org.springframework.boot.context.properties.source.PropertyMapper
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: org.springframework.boot.context.properties.source.DefaultPropertyMapper
  super_class: java.lang.Object
{
  public static final org.springframework.boot.context.properties.source.PropertyMapper INSTANCE;
    descriptor: Lorg/springframework/boot/context/properties/source/PropertyMapper;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  private org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping<org.springframework.boot.context.properties.source.ConfigurationPropertyName, java.util.List<java.lang.String>> lastMappedConfigurationPropertyName;
    descriptor: Lorg/springframework/boot/context/properties/source/DefaultPropertyMapper$LastMapping;
    flags: (0x0002) ACC_PRIVATE
    Signature: Lorg/springframework/boot/context/properties/source/DefaultPropertyMapper$LastMapping<Lorg/springframework/boot/context/properties/source/ConfigurationPropertyName;Ljava/util/List<Ljava/lang/String;>;>;

  private org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping<java.lang.String, org.springframework.boot.context.properties.source.ConfigurationPropertyName> lastMappedPropertyName;
    descriptor: Lorg/springframework/boot/context/properties/source/DefaultPropertyMapper$LastMapping;
    flags: (0x0002) ACC_PRIVATE
    Signature: Lorg/springframework/boot/context/properties/source/DefaultPropertyMapper$LastMapping<Ljava/lang/String;Lorg/springframework/boot/context/properties/source/ConfigurationPropertyName;>;

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 36
            new org.springframework.boot.context.properties.source.DefaultPropertyMapper
            dup
            invokespecial org.springframework.boot.context.properties.source.DefaultPropertyMapper.<init>:()V
            putstatic org.springframework.boot.context.properties.source.DefaultPropertyMapper.INSTANCE:Lorg/springframework/boot/context/properties/source/PropertyMapper;
            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 // org.springframework.boot.context.properties.source.DefaultPropertyMapper this
         0: .line 42
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 43
            return
        end local 0 // org.springframework.boot.context.properties.source.DefaultPropertyMapper this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/springframework/boot/context/properties/source/DefaultPropertyMapper;

  public java.util.List<java.lang.String> map(org.springframework.boot.context.properties.source.ConfigurationPropertyName);
    descriptor: (Lorg/springframework/boot/context/properties/source/ConfigurationPropertyName;)Ljava/util/List;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=5, args_size=2
        start local 0 // org.springframework.boot.context.properties.source.DefaultPropertyMapper this
        start local 1 // org.springframework.boot.context.properties.source.ConfigurationPropertyName configurationPropertyName
         0: .line 48
            aload 0 /* this */
            getfield org.springframework.boot.context.properties.source.DefaultPropertyMapper.lastMappedConfigurationPropertyName:Lorg/springframework/boot/context/properties/source/DefaultPropertyMapper$LastMapping;
            astore 2 /* last */
        start local 2 // org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping last
         1: .line 49
            aload 2 /* last */
            ifnull 3
            aload 2 /* last */
            aload 1 /* configurationPropertyName */
            invokevirtual org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping.isFrom:(Ljava/lang/Object;)Z
            ifeq 3
         2: .line 50
            aload 2 /* last */
            invokevirtual org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping.getMapping:()Ljava/lang/Object;
            checkcast java.util.List
            areturn
         3: .line 52
      StackMap locals: org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping
      StackMap stack:
            aload 1 /* configurationPropertyName */
            invokevirtual org.springframework.boot.context.properties.source.ConfigurationPropertyName.toString:()Ljava/lang/String;
            astore 3 /* convertedName */
        start local 3 // java.lang.String convertedName
         4: .line 53
            aload 3 /* convertedName */
            invokestatic java.util.Collections.singletonList:(Ljava/lang/Object;)Ljava/util/List;
            astore 4 /* mapping */
        start local 4 // java.util.List mapping
         5: .line 54
            aload 0 /* this */
            new org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping
            dup
            aload 1 /* configurationPropertyName */
            aload 4 /* mapping */
            invokespecial org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping.<init>:(Ljava/lang/Object;Ljava/lang/Object;)V
            putfield org.springframework.boot.context.properties.source.DefaultPropertyMapper.lastMappedConfigurationPropertyName:Lorg/springframework/boot/context/properties/source/DefaultPropertyMapper$LastMapping;
         6: .line 55
            aload 4 /* mapping */
            areturn
        end local 4 // java.util.List mapping
        end local 3 // java.lang.String convertedName
        end local 2 // org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping last
        end local 1 // org.springframework.boot.context.properties.source.ConfigurationPropertyName configurationPropertyName
        end local 0 // org.springframework.boot.context.properties.source.DefaultPropertyMapper this
      LocalVariableTable:
        Start  End  Slot                       Name  Signature
            0    7     0                       this  Lorg/springframework/boot/context/properties/source/DefaultPropertyMapper;
            0    7     1  configurationPropertyName  Lorg/springframework/boot/context/properties/source/ConfigurationPropertyName;
            1    7     2                       last  Lorg/springframework/boot/context/properties/source/DefaultPropertyMapper$LastMapping<Lorg/springframework/boot/context/properties/source/ConfigurationPropertyName;Ljava/util/List<Ljava/lang/String;>;>;
            4    7     3              convertedName  Ljava/lang/String;
            5    7     4                    mapping  Ljava/util/List<Ljava/lang/String;>;
    Signature: (Lorg/springframework/boot/context/properties/source/ConfigurationPropertyName;)Ljava/util/List<Ljava/lang/String;>;
    MethodParameters:
                           Name  Flags
      configurationPropertyName  

  public org.springframework.boot.context.properties.source.ConfigurationPropertyName map(java.lang.String);
    descriptor: (Ljava/lang/String;)Lorg/springframework/boot/context/properties/source/ConfigurationPropertyName;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=4, args_size=2
        start local 0 // org.springframework.boot.context.properties.source.DefaultPropertyMapper this
        start local 1 // java.lang.String propertySourceName
         0: .line 61
            aload 0 /* this */
            getfield org.springframework.boot.context.properties.source.DefaultPropertyMapper.lastMappedPropertyName:Lorg/springframework/boot/context/properties/source/DefaultPropertyMapper$LastMapping;
            astore 2 /* last */
        start local 2 // org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping last
         1: .line 62
            aload 2 /* last */
            ifnull 3
            aload 2 /* last */
            aload 1 /* propertySourceName */
            invokevirtual org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping.isFrom:(Ljava/lang/Object;)Z
            ifeq 3
         2: .line 63
            aload 2 /* last */
            invokevirtual org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping.getMapping:()Ljava/lang/Object;
            checkcast org.springframework.boot.context.properties.source.ConfigurationPropertyName
            areturn
         3: .line 65
      StackMap locals: org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping
      StackMap stack:
            aload 0 /* this */
            aload 1 /* propertySourceName */
            invokevirtual org.springframework.boot.context.properties.source.DefaultPropertyMapper.tryMap:(Ljava/lang/String;)Lorg/springframework/boot/context/properties/source/ConfigurationPropertyName;
            astore 3 /* mapping */
        start local 3 // org.springframework.boot.context.properties.source.ConfigurationPropertyName mapping
         4: .line 66
            aload 0 /* this */
            new org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping
            dup
            aload 1 /* propertySourceName */
            aload 3 /* mapping */
            invokespecial org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping.<init>:(Ljava/lang/Object;Ljava/lang/Object;)V
            putfield org.springframework.boot.context.properties.source.DefaultPropertyMapper.lastMappedPropertyName:Lorg/springframework/boot/context/properties/source/DefaultPropertyMapper$LastMapping;
         5: .line 67
            aload 3 /* mapping */
            areturn
        end local 3 // org.springframework.boot.context.properties.source.ConfigurationPropertyName mapping
        end local 2 // org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping last
        end local 1 // java.lang.String propertySourceName
        end local 0 // org.springframework.boot.context.properties.source.DefaultPropertyMapper this
      LocalVariableTable:
        Start  End  Slot                Name  Signature
            0    6     0                this  Lorg/springframework/boot/context/properties/source/DefaultPropertyMapper;
            0    6     1  propertySourceName  Ljava/lang/String;
            1    6     2                last  Lorg/springframework/boot/context/properties/source/DefaultPropertyMapper$LastMapping<Ljava/lang/String;Lorg/springframework/boot/context/properties/source/ConfigurationPropertyName;>;
            4    6     3             mapping  Lorg/springframework/boot/context/properties/source/ConfigurationPropertyName;
    MethodParameters:
                    Name  Flags
      propertySourceName  

  private org.springframework.boot.context.properties.source.ConfigurationPropertyName tryMap(java.lang.String);
    descriptor: (Ljava/lang/String;)Lorg/springframework/boot/context/properties/source/ConfigurationPropertyName;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // org.springframework.boot.context.properties.source.DefaultPropertyMapper this
        start local 1 // java.lang.String propertySourceName
         0: .line 72
            aload 1 /* propertySourceName */
            bipush 46
            invokestatic org.springframework.boot.context.properties.source.ConfigurationPropertyName.adapt:(Ljava/lang/CharSequence;C)Lorg/springframework/boot/context/properties/source/ConfigurationPropertyName;
            astore 2 /* convertedName */
        start local 2 // org.springframework.boot.context.properties.source.ConfigurationPropertyName convertedName
         1: .line 73
            aload 2 /* convertedName */
            invokevirtual org.springframework.boot.context.properties.source.ConfigurationPropertyName.isEmpty:()Z
            ifne 5
         2: .line 74
            aload 2 /* convertedName */
         3: areturn
        end local 2 // org.springframework.boot.context.properties.source.ConfigurationPropertyName convertedName
         4: .line 77
      StackMap locals:
      StackMap stack: java.lang.Exception
            pop
         5: .line 79
      StackMap locals:
      StackMap stack:
            getstatic org.springframework.boot.context.properties.source.ConfigurationPropertyName.EMPTY:Lorg/springframework/boot/context/properties/source/ConfigurationPropertyName;
            areturn
        end local 1 // java.lang.String propertySourceName
        end local 0 // org.springframework.boot.context.properties.source.DefaultPropertyMapper this
      LocalVariableTable:
        Start  End  Slot                Name  Signature
            0    6     0                this  Lorg/springframework/boot/context/properties/source/DefaultPropertyMapper;
            0    6     1  propertySourceName  Ljava/lang/String;
            1    4     2       convertedName  Lorg/springframework/boot/context/properties/source/ConfigurationPropertyName;
      Exception table:
        from    to  target  type
           0     3       4  Class java.lang.Exception
    MethodParameters:
                    Name  Flags
      propertySourceName  
}
SourceFile: "DefaultPropertyMapper.java"
NestMembers:
  org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping
InnerClasses:
  private LastMapping = org.springframework.boot.context.properties.source.DefaultPropertyMapper$LastMapping of org.springframework.boot.context.properties.source.DefaultPropertyMapper