https://xerces.apache.org/xerces2-j/: Xerces2 is the next generation of high performance, fully compliant XML parsers in the Apache Xerces family. This new version of Xerces introduces the Xerces Native Interface (XNI), a complete framework for building parser components and configurations that is extremely modular and easy to program. The Apache Xerces2 parser is the reference implementation of XNI but other parser components, configurations, and parsers can be written using the Xerces Native Interface. For complete design and implementation documents, refer to the XNI Manual. Xerces2 is a fully conforming XML Schema 1.0 processor. A partial experimental implementation of the XML Schema 1.1 Structures and Datatypes Working Drafts (December 2009) and an experimental implementation of the XML Schema Definition Language (XSD): Component Designators (SCD) Candidate Recommendation (January 2010) are provided for evaluation. For more information, refer to the XML Schema page. Xerces2 also provides a complete implementation of the Document Object Model Level 3 Core and Load/Save W3C Recommendations and provides a complete implementation of the XML Inclusions (XInclude) W3C Recommendation. It also provides support for OASIS XML Catalogs v1.1. Xerces2 is able to parse documents written according to the XML 1.1 Recommendation, except that it does not yet provide an option to enable normalization checking as described in section 2.13 of this specification. It also handles namespaces according to the XML Namespaces 1.1 Recommendation, and will correctly serialize XML 1.1 documents if the DOM level 3 load/save APIs are in use. 
final class org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool
  super_class: java.lang.Object
{
  private static final int DEFAULT_POOL_SIZE;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 3

  private org.apache.xerces.impl.XMLEntityManager$CharacterBuffer[] fInternalBufferPool;
    descriptor: [Lorg/apache/xerces/impl/XMLEntityManager$CharacterBuffer;
    flags: (0x0002) ACC_PRIVATE

  private org.apache.xerces.impl.XMLEntityManager$CharacterBuffer[] fExternalBufferPool;
    descriptor: [Lorg/apache/xerces/impl/XMLEntityManager$CharacterBuffer;
    flags: (0x0002) ACC_PRIVATE

  private int fExternalBufferSize;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private int fInternalBufferSize;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private int fPoolSize;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private int fInternalTop;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private int fExternalTop;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  public void <init>(int, int);
    descriptor: (II)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool this
        start local 1 // int externalBufferSize
        start local 2 // int internalBufferSize
         0: .line 3060
            aload 0 /* this */
            iconst_3
            iload 1 /* externalBufferSize */
            iload 2 /* internalBufferSize */
            invokespecial org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.<init>:(III)V
         1: .line 3061
            return
        end local 2 // int internalBufferSize
        end local 1 // int externalBufferSize
        end local 0 // org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool this
      LocalVariableTable:
        Start  End  Slot                Name  Signature
            0    2     0                this  Lorg/apache/xerces/impl/XMLEntityManager$CharacterBufferPool;
            0    2     1  externalBufferSize  I
            0    2     2  internalBufferSize  I
    MethodParameters:
                    Name  Flags
      externalBufferSize  
      internalBufferSize  

  public void <init>(int, int, int);
    descriptor: (III)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=4, args_size=4
        start local 0 // org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool this
        start local 1 // int poolSize
        start local 2 // int externalBufferSize
        start local 3 // int internalBufferSize
         0: .line 3063
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 3064
            aload 0 /* this */
            iload 2 /* externalBufferSize */
            putfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fExternalBufferSize:I
         2: .line 3065
            aload 0 /* this */
            iload 3 /* internalBufferSize */
            putfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fInternalBufferSize:I
         3: .line 3066
            aload 0 /* this */
            iload 1 /* poolSize */
            putfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fPoolSize:I
         4: .line 3067
            aload 0 /* this */
            invokevirtual org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.init:()V
         5: .line 3068
            return
        end local 3 // int internalBufferSize
        end local 2 // int externalBufferSize
        end local 1 // int poolSize
        end local 0 // org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool this
      LocalVariableTable:
        Start  End  Slot                Name  Signature
            0    6     0                this  Lorg/apache/xerces/impl/XMLEntityManager$CharacterBufferPool;
            0    6     1            poolSize  I
            0    6     2  externalBufferSize  I
            0    6     3  internalBufferSize  I
    MethodParameters:
                    Name  Flags
      poolSize            
      externalBufferSize  
      internalBufferSize  

  private void init();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool this
         0: .line 3072
            aload 0 /* this */
            aload 0 /* this */
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fPoolSize:I
            anewarray org.apache.xerces.impl.XMLEntityManager$CharacterBuffer
            putfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fInternalBufferPool:[Lorg/apache/xerces/impl/XMLEntityManager$CharacterBuffer;
         1: .line 3073
            aload 0 /* this */
            aload 0 /* this */
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fPoolSize:I
            anewarray org.apache.xerces.impl.XMLEntityManager$CharacterBuffer
            putfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fExternalBufferPool:[Lorg/apache/xerces/impl/XMLEntityManager$CharacterBuffer;
         2: .line 3074
            aload 0 /* this */
            iconst_m1
            putfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fInternalTop:I
         3: .line 3075
            aload 0 /* this */
            iconst_m1
            putfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fExternalTop:I
         4: .line 3076
            return
        end local 0 // org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lorg/apache/xerces/impl/XMLEntityManager$CharacterBufferPool;

  public org.apache.xerces.impl.XMLEntityManager$CharacterBuffer getBuffer(boolean);
    descriptor: (Z)Lorg/apache/xerces/impl/XMLEntityManager$CharacterBuffer;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool this
        start local 1 // boolean external
         0: .line 3080
            iload 1 /* external */
            ifeq 4
         1: .line 3081
            aload 0 /* this */
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fExternalTop:I
            iconst_m1
            if_icmple 3
         2: .line 3082
            aload 0 /* this */
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fExternalBufferPool:[Lorg/apache/xerces/impl/XMLEntityManager$CharacterBuffer;
            aload 0 /* this */
            dup
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fExternalTop:I
            dup_x1
            iconst_1
            isub
            putfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fExternalTop:I
            aaload
            areturn
         3: .line 3085
      StackMap locals:
      StackMap stack:
            new org.apache.xerces.impl.XMLEntityManager$CharacterBuffer
            dup
            iconst_1
            aload 0 /* this */
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fExternalBufferSize:I
            invokespecial org.apache.xerces.impl.XMLEntityManager$CharacterBuffer.<init>:(ZI)V
            areturn
         4: .line 3089
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fInternalTop:I
            iconst_m1
            if_icmple 6
         5: .line 3090
            aload 0 /* this */
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fInternalBufferPool:[Lorg/apache/xerces/impl/XMLEntityManager$CharacterBuffer;
            aload 0 /* this */
            dup
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fInternalTop:I
            dup_x1
            iconst_1
            isub
            putfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fInternalTop:I
            aaload
            areturn
         6: .line 3093
      StackMap locals:
      StackMap stack:
            new org.apache.xerces.impl.XMLEntityManager$CharacterBuffer
            dup
            iconst_0
            aload 0 /* this */
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fInternalBufferSize:I
            invokespecial org.apache.xerces.impl.XMLEntityManager$CharacterBuffer.<init>:(ZI)V
            areturn
        end local 1 // boolean external
        end local 0 // org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    7     0      this  Lorg/apache/xerces/impl/XMLEntityManager$CharacterBufferPool;
            0    7     1  external  Z
    MethodParameters:
          Name  Flags
      external  

  public void returnBuffer(org.apache.xerces.impl.XMLEntityManager$CharacterBuffer);
    descriptor: (Lorg/apache/xerces/impl/XMLEntityManager$CharacterBuffer;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool this
        start local 1 // org.apache.xerces.impl.XMLEntityManager$CharacterBuffer buffer
         0: .line 3100
            aload 1 /* buffer */
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBuffer.isExternal:Z
            ifeq 4
         1: .line 3101
            aload 0 /* this */
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fExternalTop:I
            aload 0 /* this */
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fExternalBufferPool:[Lorg/apache/xerces/impl/XMLEntityManager$CharacterBuffer;
            arraylength
            iconst_1
            isub
            if_icmpge 6
         2: .line 3102
            aload 0 /* this */
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fExternalBufferPool:[Lorg/apache/xerces/impl/XMLEntityManager$CharacterBuffer;
            aload 0 /* this */
            dup
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fExternalTop:I
            iconst_1
            iadd
            dup_x1
            putfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fExternalTop:I
            aload 1 /* buffer */
            aastore
         3: .line 3104
            goto 6
         4: .line 3105
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fInternalTop:I
            aload 0 /* this */
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fInternalBufferPool:[Lorg/apache/xerces/impl/XMLEntityManager$CharacterBuffer;
            arraylength
            iconst_1
            isub
            if_icmpge 6
         5: .line 3106
            aload 0 /* this */
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fInternalBufferPool:[Lorg/apache/xerces/impl/XMLEntityManager$CharacterBuffer;
            aload 0 /* this */
            dup
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fInternalTop:I
            iconst_1
            iadd
            dup_x1
            putfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fInternalTop:I
            aload 1 /* buffer */
            aastore
         6: .line 3108
      StackMap locals:
      StackMap stack:
            return
        end local 1 // org.apache.xerces.impl.XMLEntityManager$CharacterBuffer buffer
        end local 0 // org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    7     0    this  Lorg/apache/xerces/impl/XMLEntityManager$CharacterBufferPool;
            0    7     1  buffer  Lorg/apache/xerces/impl/XMLEntityManager$CharacterBuffer;
    MethodParameters:
        Name  Flags
      buffer  

  public void setExternalBufferSize(int);
    descriptor: (I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool this
        start local 1 // int bufferSize
         0: .line 3112
            aload 0 /* this */
            iload 1 /* bufferSize */
            putfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fExternalBufferSize:I
         1: .line 3113
            aload 0 /* this */
            aload 0 /* this */
            getfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fPoolSize:I
            anewarray org.apache.xerces.impl.XMLEntityManager$CharacterBuffer
            putfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fExternalBufferPool:[Lorg/apache/xerces/impl/XMLEntityManager$CharacterBuffer;
         2: .line 3114
            aload 0 /* this */
            iconst_m1
            putfield org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool.fExternalTop:I
         3: .line 3115
            return
        end local 1 // int bufferSize
        end local 0 // org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    4     0        this  Lorg/apache/xerces/impl/XMLEntityManager$CharacterBufferPool;
            0    4     1  bufferSize  I
    MethodParameters:
            Name  Flags
      bufferSize  
}
SourceFile: "XMLEntityManager.java"
NestHost: org.apache.xerces.impl.XMLEntityManager
InnerClasses:
  private final CharacterBuffer = org.apache.xerces.impl.XMLEntityManager$CharacterBuffer of org.apache.xerces.impl.XMLEntityManager
  private final CharacterBufferPool = org.apache.xerces.impl.XMLEntityManager$CharacterBufferPool of org.apache.xerces.impl.XMLEntityManager