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 final class com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet extends java.util.AbstractSet<java.lang.String>
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet
  super_class: java.util.AbstractSet
{
  private final java.util.Set<java.lang.String> _namesToMatch;
    descriptor: Ljava/util/Set;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/Set<Ljava/lang/String;>;

  private void <init>(java.util.Set<java.lang.String>);
    descriptor: (Ljava/util/Set;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet this
        start local 1 // java.util.Set namesToMatch
         0: .line 15
            aload 0 /* this */
            invokespecial java.util.AbstractSet.<init>:()V
         1: .line 16
            aload 0 /* this */
            aload 1 /* namesToMatch */
            putfield com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet._namesToMatch:Ljava/util/Set;
         2: .line 17
            return
        end local 1 // java.util.Set namesToMatch
        end local 0 // com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    3     0          this  Lcom/fasterxml/jackson/dataformat/xml/util/CaseInsensitiveNameSet;
            0    3     1  namesToMatch  Ljava/util/Set<Ljava/lang/String;>;
    Signature: (Ljava/util/Set<Ljava/lang/String;>;)V
    MethodParameters:
              Name  Flags
      namesToMatch  

  public static com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet construct(java.util.Set<java.lang.String>);
    descriptor: (Ljava/util/Set;)Lcom/fasterxml/jackson/dataformat/xml/util/CaseInsensitiveNameSet;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=4, args_size=1
        start local 0 // java.util.Set names0
         0: .line 20
            new java.util.HashSet
            dup
            aload 0 /* names0 */
            invokespecial java.util.HashSet.<init>:(Ljava/util/Collection;)V
            astore 1 /* namesToMatch */
        start local 1 // java.util.Set namesToMatch
         1: .line 21
            aload 0 /* names0 */
            invokeinterface java.util.Set.iterator:()Ljava/util/Iterator;
            astore 3
            goto 4
      StackMap locals: java.util.Set java.util.Set top java.util.Iterator
      StackMap stack:
         2: aload 3
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast java.lang.String
            astore 2 /* name */
        start local 2 // java.lang.String name
         3: .line 22
            aload 1 /* namesToMatch */
            aload 2 /* name */
            invokevirtual java.lang.String.toLowerCase:()Ljava/lang/String;
            invokeinterface java.util.Set.add:(Ljava/lang/Object;)Z
            pop
        end local 2 // java.lang.String name
         4: .line 21
      StackMap locals:
      StackMap stack:
            aload 3
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 2
         5: .line 24
            new com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet
            dup
            aload 1 /* namesToMatch */
            invokespecial com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet.<init>:(Ljava/util/Set;)V
            areturn
        end local 1 // java.util.Set namesToMatch
        end local 0 // java.util.Set names0
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    6     0        names0  Ljava/util/Set<Ljava/lang/String;>;
            1    6     1  namesToMatch  Ljava/util/Set<Ljava/lang/String;>;
            3    4     2          name  Ljava/lang/String;
    Signature: (Ljava/util/Set<Ljava/lang/String;>;)Lcom/fasterxml/jackson/dataformat/xml/util/CaseInsensitiveNameSet;
    MethodParameters:
        Name  Flags
      names0  

  public boolean contains(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=4, args_size=2
        start local 0 // com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet this
        start local 1 // java.lang.Object key0
         0: .line 29
            aload 1 /* key0 */
            checkcast java.lang.String
            astore 2 /* key */
        start local 2 // java.lang.String key
         1: .line 30
            aload 0 /* this */
            getfield com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet._namesToMatch:Ljava/util/Set;
            aload 2 /* key */
            invokeinterface java.util.Set.contains:(Ljava/lang/Object;)Z
            ifeq 3
         2: .line 31
            iconst_1
            ireturn
         3: .line 33
      StackMap locals: java.lang.String
      StackMap stack:
            aload 2 /* key */
            invokevirtual java.lang.String.toLowerCase:()Ljava/lang/String;
            astore 3 /* lc */
        start local 3 // java.lang.String lc
         4: .line 34
            aload 3 /* lc */
            aload 2 /* key */
            if_acmpeq 5
            aload 0 /* this */
            getfield com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet._namesToMatch:Ljava/util/Set;
            aload 3 /* lc */
            invokeinterface java.util.Set.contains:(Ljava/lang/Object;)Z
            ifeq 5
            iconst_1
            ireturn
      StackMap locals: java.lang.String
      StackMap stack:
         5: iconst_0
            ireturn
        end local 3 // java.lang.String lc
        end local 2 // java.lang.String key
        end local 1 // java.lang.Object key0
        end local 0 // com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lcom/fasterxml/jackson/dataformat/xml/util/CaseInsensitiveNameSet;
            0    6     1  key0  Ljava/lang/Object;
            1    6     2   key  Ljava/lang/String;
            4    6     3    lc  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      key0  

  public java.util.Iterator<java.lang.String> iterator();
    descriptor: ()Ljava/util/Iterator;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet this
         0: .line 39
            aload 0 /* this */
            getfield com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet._namesToMatch:Ljava/util/Set;
            invokeinterface java.util.Set.iterator:()Ljava/util/Iterator;
            areturn
        end local 0 // com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/fasterxml/jackson/dataformat/xml/util/CaseInsensitiveNameSet;
    Signature: ()Ljava/util/Iterator<Ljava/lang/String;>;

  public int size();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet this
         0: .line 44
            aload 0 /* this */
            getfield com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet._namesToMatch:Ljava/util/Set;
            invokeinterface java.util.Set.size:()I
            ireturn
        end local 0 // com.fasterxml.jackson.dataformat.xml.util.CaseInsensitiveNameSet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/fasterxml/jackson/dataformat/xml/util/CaseInsensitiveNameSet;
}
Signature: Ljava/util/AbstractSet<Ljava/lang/String;>;
SourceFile: "CaseInsensitiveNameSet.java"