https://github.com/FasterXML/jackson-dataformat-xml: Data format extension for Jackson (http://jackson.codehaus.org) to offer alternative support for serializing POJOs as XML and deserializing XML as pojos. Support implemented on top of Stax API (javax.xml.stream), by implementing core Jackson Streaming API types like JsonGenerator, JsonParser and JsonFactory. Some data-binding types overridden as well (ObjectMapper sub-classed as XmlMapper). (FasterXML)
  • Tatu Saloranta 
public class com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup implements java.io.Serializable
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup
  super_class: java.lang.Object
{
  private static final long serialVersionUID;
    descriptor: J
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 1

  public static final javax.xml.namespace.QName ROOT_NAME_FOR_NULL;
    descriptor: Ljavax/xml/namespace/QName;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  protected final transient com.fasterxml.jackson.databind.util.LRUMap<com.fasterxml.jackson.databind.type.ClassKey, javax.xml.namespace.QName> _rootNames;
    descriptor: Lcom/fasterxml/jackson/databind/util/LRUMap;
    flags: (0x0094) ACC_PROTECTED, ACC_FINAL, ACC_TRANSIENT
    Signature: Lcom/fasterxml/jackson/databind/util/LRUMap<Lcom/fasterxml/jackson/databind/type/ClassKey;Ljavax/xml/namespace/QName;>;

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=3, locals=0, args_size=0
         0: .line 25
            new javax.xml.namespace.QName
            dup
            ldc "null"
            invokespecial javax.xml.namespace.QName.<init>:(Ljava/lang/String;)V
            putstatic com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup.ROOT_NAME_FOR_NULL:Ljavax/xml/namespace/QName;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=1, args_size=1
        start local 0 // com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup this
         0: .line 36
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 34
            aload 0 /* this */
            new com.fasterxml.jackson.databind.util.LRUMap
            dup
            bipush 40
            sipush 200
            invokespecial com.fasterxml.jackson.databind.util.LRUMap.<init>:(II)V
            putfield com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup._rootNames:Lcom/fasterxml/jackson/databind/util/LRUMap;
         2: .line 36
            return
        end local 0 // com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lcom/fasterxml/jackson/dataformat/xml/util/XmlRootNameLookup;

  protected java.lang.Object readResolve();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup this
         0: .line 40
            aload 0 /* this */
            getfield com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup._rootNames:Lcom/fasterxml/jackson/databind/util/LRUMap;
            ifnonnull 2
         1: .line 41
            new com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup
            dup
            invokespecial com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup.<init>:()V
            areturn
         2: .line 43
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            areturn
        end local 0 // com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lcom/fasterxml/jackson/dataformat/xml/util/XmlRootNameLookup;

  public javax.xml.namespace.QName findRootName(com.fasterxml.jackson.databind.JavaType, com.fasterxml.jackson.databind.cfg.MapperConfig<?>);
    descriptor: (Lcom/fasterxml/jackson/databind/JavaType;Lcom/fasterxml/jackson/databind/cfg/MapperConfig;)Ljavax/xml/namespace/QName;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup this
        start local 1 // com.fasterxml.jackson.databind.JavaType rootType
        start local 2 // com.fasterxml.jackson.databind.cfg.MapperConfig config
         0: .line 47
            aload 0 /* this */
            aload 1 /* rootType */
            invokevirtual com.fasterxml.jackson.databind.JavaType.getRawClass:()Ljava/lang/Class;
            aload 2 /* config */
            invokevirtual com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup.findRootName:(Ljava/lang/Class;Lcom/fasterxml/jackson/databind/cfg/MapperConfig;)Ljavax/xml/namespace/QName;
            areturn
        end local 2 // com.fasterxml.jackson.databind.cfg.MapperConfig config
        end local 1 // com.fasterxml.jackson.databind.JavaType rootType
        end local 0 // com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0      this  Lcom/fasterxml/jackson/dataformat/xml/util/XmlRootNameLookup;
            0    1     1  rootType  Lcom/fasterxml/jackson/databind/JavaType;
            0    1     2    config  Lcom/fasterxml/jackson/databind/cfg/MapperConfig<*>;
    Signature: (Lcom/fasterxml/jackson/databind/JavaType;Lcom/fasterxml/jackson/databind/cfg/MapperConfig<*>;)Ljavax/xml/namespace/QName;
    MethodParameters:
          Name  Flags
      rootType  
      config    

  public javax.xml.namespace.QName findRootName(java.lang.Class<?>, com.fasterxml.jackson.databind.cfg.MapperConfig<?>);
    descriptor: (Ljava/lang/Class;Lcom/fasterxml/jackson/databind/cfg/MapperConfig;)Ljavax/xml/namespace/QName;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=6, args_size=3
        start local 0 // com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup this
        start local 1 // java.lang.Class rootType
        start local 2 // com.fasterxml.jackson.databind.cfg.MapperConfig config
         0: .line 52
            new com.fasterxml.jackson.databind.type.ClassKey
            dup
            aload 1 /* rootType */
            invokespecial com.fasterxml.jackson.databind.type.ClassKey.<init>:(Ljava/lang/Class;)V
            astore 3 /* key */
        start local 3 // com.fasterxml.jackson.databind.type.ClassKey key
         1: .line 54
            aload 0 /* this */
            getfield com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup._rootNames:Lcom/fasterxml/jackson/databind/util/LRUMap;
            dup
            astore 5
            monitorenter
         2: .line 55
            aload 0 /* this */
            getfield com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup._rootNames:Lcom/fasterxml/jackson/databind/util/LRUMap;
            aload 3 /* key */
            invokevirtual com.fasterxml.jackson.databind.util.LRUMap.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast javax.xml.namespace.QName
            astore 4 /* name */
        start local 4 // javax.xml.namespace.QName name
         3: .line 54
            aload 5
            monitorexit
         4: goto 7
        end local 4 // javax.xml.namespace.QName name
      StackMap locals: com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup java.lang.Class com.fasterxml.jackson.databind.cfg.MapperConfig com.fasterxml.jackson.databind.type.ClassKey top com.fasterxml.jackson.databind.util.LRUMap
      StackMap stack: java.lang.Throwable
         5: aload 5
            monitorexit
         6: athrow
        start local 4 // javax.xml.namespace.QName name
         7: .line 57
      StackMap locals: com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup java.lang.Class com.fasterxml.jackson.databind.cfg.MapperConfig com.fasterxml.jackson.databind.type.ClassKey javax.xml.namespace.QName
      StackMap stack:
            aload 4 /* name */
            ifnull 9
         8: .line 58
            aload 4 /* name */
            areturn
         9: .line 60
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* rootType */
            aload 2 /* config */
            invokevirtual com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup._findRootName:(Ljava/lang/Class;Lcom/fasterxml/jackson/databind/cfg/MapperConfig;)Ljavax/xml/namespace/QName;
            astore 4 /* name */
        10: .line 61
            aload 0 /* this */
            getfield com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup._rootNames:Lcom/fasterxml/jackson/databind/util/LRUMap;
            dup
            astore 5
            monitorenter
        11: .line 62
            aload 0 /* this */
            getfield com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup._rootNames:Lcom/fasterxml/jackson/databind/util/LRUMap;
            aload 3 /* key */
            aload 4 /* name */
            invokevirtual com.fasterxml.jackson.databind.util.LRUMap.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        12: .line 61
            aload 5
            monitorexit
        13: goto 16
      StackMap locals: com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup java.lang.Class com.fasterxml.jackson.databind.cfg.MapperConfig com.fasterxml.jackson.databind.type.ClassKey javax.xml.namespace.QName com.fasterxml.jackson.databind.util.LRUMap
      StackMap stack: java.lang.Throwable
        14: aload 5
            monitorexit
        15: athrow
        16: .line 64
      StackMap locals:
      StackMap stack:
            aload 4 /* name */
            areturn
        end local 4 // javax.xml.namespace.QName name
        end local 3 // com.fasterxml.jackson.databind.type.ClassKey key
        end local 2 // com.fasterxml.jackson.databind.cfg.MapperConfig config
        end local 1 // java.lang.Class rootType
        end local 0 // com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   17     0      this  Lcom/fasterxml/jackson/dataformat/xml/util/XmlRootNameLookup;
            0   17     1  rootType  Ljava/lang/Class<*>;
            0   17     2    config  Lcom/fasterxml/jackson/databind/cfg/MapperConfig<*>;
            1   17     3       key  Lcom/fasterxml/jackson/databind/type/ClassKey;
            3    5     4      name  Ljavax/xml/namespace/QName;
            7   17     4      name  Ljavax/xml/namespace/QName;
      Exception table:
        from    to  target  type
           2     4       5  any
           5     6       5  any
          11    13      14  any
          14    15      14  any
    Signature: (Ljava/lang/Class<*>;Lcom/fasterxml/jackson/databind/cfg/MapperConfig<*>;)Ljavax/xml/namespace/QName;
    MethodParameters:
          Name  Flags
      rootType  
      config    

  protected javax.xml.namespace.QName _findRootName(java.lang.Class<?>, com.fasterxml.jackson.databind.cfg.MapperConfig<?>);
    descriptor: (Ljava/lang/Class;Lcom/fasterxml/jackson/databind/cfg/MapperConfig;)Ljavax/xml/namespace/QName;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=4, locals=9, args_size=3
        start local 0 // com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup this
        start local 1 // java.lang.Class rootType
        start local 2 // com.fasterxml.jackson.databind.cfg.MapperConfig config
         0: .line 71
            aload 2 /* config */
            aload 1 /* rootType */
            invokevirtual com.fasterxml.jackson.databind.cfg.MapperConfig.introspectClassAnnotations:(Ljava/lang/Class;)Lcom/fasterxml/jackson/databind/BeanDescription;
            astore 3 /* beanDesc */
        start local 3 // com.fasterxml.jackson.databind.BeanDescription beanDesc
         1: .line 72
            aload 2 /* config */
            invokevirtual com.fasterxml.jackson.databind.cfg.MapperConfig.getAnnotationIntrospector:()Lcom/fasterxml/jackson/databind/AnnotationIntrospector;
            astore 4 /* intr */
        start local 4 // com.fasterxml.jackson.databind.AnnotationIntrospector intr
         2: .line 73
            aload 3 /* beanDesc */
            invokevirtual com.fasterxml.jackson.databind.BeanDescription.getClassInfo:()Lcom/fasterxml/jackson/databind/introspect/AnnotatedClass;
            astore 5 /* ac */
        start local 5 // com.fasterxml.jackson.databind.introspect.AnnotatedClass ac
         3: .line 74
            aconst_null
            astore 6 /* localName */
        start local 6 // java.lang.String localName
         4: .line 75
            aconst_null
            astore 7 /* ns */
        start local 7 // java.lang.String ns
         5: .line 77
            aload 4 /* intr */
            aload 5 /* ac */
            invokevirtual com.fasterxml.jackson.databind.AnnotationIntrospector.findRootName:(Lcom/fasterxml/jackson/databind/introspect/AnnotatedClass;)Lcom/fasterxml/jackson/databind/PropertyName;
            astore 8 /* root */
        start local 8 // com.fasterxml.jackson.databind.PropertyName root
         6: .line 78
            aload 8 /* root */
            ifnull 9
         7: .line 79
            aload 8 /* root */
            invokevirtual com.fasterxml.jackson.databind.PropertyName.getSimpleName:()Ljava/lang/String;
            astore 6 /* localName */
         8: .line 80
            aload 8 /* root */
            invokevirtual com.fasterxml.jackson.databind.PropertyName.getNamespace:()Ljava/lang/String;
            astore 7 /* ns */
         9: .line 83
      StackMap locals: com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup java.lang.Class com.fasterxml.jackson.databind.cfg.MapperConfig com.fasterxml.jackson.databind.BeanDescription com.fasterxml.jackson.databind.AnnotationIntrospector com.fasterxml.jackson.databind.introspect.AnnotatedClass java.lang.String java.lang.String com.fasterxml.jackson.databind.PropertyName
      StackMap stack:
            aload 6 /* localName */
            ifnull 10
            aload 6 /* localName */
            invokevirtual java.lang.String.length:()I
            ifne 12
        10: .line 86
      StackMap locals:
      StackMap stack:
            aload 1 /* rootType */
            invokevirtual java.lang.Class.getSimpleName:()Ljava/lang/String;
            invokestatic com.fasterxml.jackson.dataformat.xml.util.StaxUtil.sanitizeXmlTypeName:(Ljava/lang/String;)Ljava/lang/String;
            astore 6 /* localName */
        11: .line 87
            new javax.xml.namespace.QName
            dup
            ldc ""
            aload 6 /* localName */
            invokespecial javax.xml.namespace.QName.<init>:(Ljava/lang/String;Ljava/lang/String;)V
            areturn
        12: .line 90
      StackMap locals:
      StackMap stack:
            aload 7 /* ns */
            ifnull 13
            aload 7 /* ns */
            invokevirtual java.lang.String.length:()I
            ifne 14
        13: .line 91
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 4 /* intr */
            aload 5 /* ac */
            invokevirtual com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup.findNamespace:(Lcom/fasterxml/jackson/databind/AnnotationIntrospector;Lcom/fasterxml/jackson/databind/introspect/AnnotatedClass;)Ljava/lang/String;
            astore 7 /* ns */
        14: .line 93
      StackMap locals:
      StackMap stack:
            aload 7 /* ns */
            ifnonnull 16
        15: .line 94
            ldc ""
            astore 7 /* ns */
        16: .line 96
      StackMap locals:
      StackMap stack:
            new javax.xml.namespace.QName
            dup
            aload 7 /* ns */
            aload 6 /* localName */
            invokespecial javax.xml.namespace.QName.<init>:(Ljava/lang/String;Ljava/lang/String;)V
            areturn
        end local 8 // com.fasterxml.jackson.databind.PropertyName root
        end local 7 // java.lang.String ns
        end local 6 // java.lang.String localName
        end local 5 // com.fasterxml.jackson.databind.introspect.AnnotatedClass ac
        end local 4 // com.fasterxml.jackson.databind.AnnotationIntrospector intr
        end local 3 // com.fasterxml.jackson.databind.BeanDescription beanDesc
        end local 2 // com.fasterxml.jackson.databind.cfg.MapperConfig config
        end local 1 // java.lang.Class rootType
        end local 0 // com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0   17     0       this  Lcom/fasterxml/jackson/dataformat/xml/util/XmlRootNameLookup;
            0   17     1   rootType  Ljava/lang/Class<*>;
            0   17     2     config  Lcom/fasterxml/jackson/databind/cfg/MapperConfig<*>;
            1   17     3   beanDesc  Lcom/fasterxml/jackson/databind/BeanDescription;
            2   17     4       intr  Lcom/fasterxml/jackson/databind/AnnotationIntrospector;
            3   17     5         ac  Lcom/fasterxml/jackson/databind/introspect/AnnotatedClass;
            4   17     6  localName  Ljava/lang/String;
            5   17     7         ns  Ljava/lang/String;
            6   17     8       root  Lcom/fasterxml/jackson/databind/PropertyName;
    Signature: (Ljava/lang/Class<*>;Lcom/fasterxml/jackson/databind/cfg/MapperConfig<*>;)Ljavax/xml/namespace/QName;
    MethodParameters:
          Name  Flags
      rootType  
      config    

  private java.lang.String findNamespace(com.fasterxml.jackson.databind.AnnotationIntrospector, com.fasterxml.jackson.databind.introspect.AnnotatedClass);
    descriptor: (Lcom/fasterxml/jackson/databind/AnnotationIntrospector;Lcom/fasterxml/jackson/databind/introspect/AnnotatedClass;)Ljava/lang/String;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=6, args_size=3
        start local 0 // com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup this
        start local 1 // com.fasterxml.jackson.databind.AnnotationIntrospector ai
        start local 2 // com.fasterxml.jackson.databind.introspect.AnnotatedClass ann
         0: .line 101
            aload 1 /* ai */
            invokevirtual com.fasterxml.jackson.databind.AnnotationIntrospector.allIntrospectors:()Ljava/util/Collection;
            invokeinterface java.util.Collection.iterator:()Ljava/util/Iterator;
            astore 4
            goto 6
      StackMap locals: com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup com.fasterxml.jackson.databind.AnnotationIntrospector com.fasterxml.jackson.databind.introspect.AnnotatedClass top java.util.Iterator
      StackMap stack:
         1: aload 4
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast com.fasterxml.jackson.databind.AnnotationIntrospector
            astore 3 /* intr */
        start local 3 // com.fasterxml.jackson.databind.AnnotationIntrospector intr
         2: .line 102
            aload 3 /* intr */
            instanceof com.fasterxml.jackson.dataformat.xml.XmlAnnotationIntrospector
            ifeq 6
         3: .line 103
            aload 3 /* intr */
            checkcast com.fasterxml.jackson.dataformat.xml.XmlAnnotationIntrospector
            aload 2 /* ann */
            invokeinterface com.fasterxml.jackson.dataformat.xml.XmlAnnotationIntrospector.findNamespace:(Lcom/fasterxml/jackson/databind/introspect/Annotated;)Ljava/lang/String;
            astore 5 /* ns */
        start local 5 // java.lang.String ns
         4: .line 104
            aload 5 /* ns */
            ifnull 6
         5: .line 105
            aload 5 /* ns */
            areturn
        end local 5 // java.lang.String ns
        end local 3 // com.fasterxml.jackson.databind.AnnotationIntrospector intr
         6: .line 101
      StackMap locals:
      StackMap stack:
            aload 4
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 1
         7: .line 109
            aconst_null
            areturn
        end local 2 // com.fasterxml.jackson.databind.introspect.AnnotatedClass ann
        end local 1 // com.fasterxml.jackson.databind.AnnotationIntrospector ai
        end local 0 // com.fasterxml.jackson.dataformat.xml.util.XmlRootNameLookup this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    8     0  this  Lcom/fasterxml/jackson/dataformat/xml/util/XmlRootNameLookup;
            0    8     1    ai  Lcom/fasterxml/jackson/databind/AnnotationIntrospector;
            0    8     2   ann  Lcom/fasterxml/jackson/databind/introspect/AnnotatedClass;
            2    6     3  intr  Lcom/fasterxml/jackson/databind/AnnotationIntrospector;
            4    6     5    ns  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      ai    
      ann   
}
SourceFile: "XmlRootNameLookup.java"