http://xmlgraphics.apache.org/batik/batik-bridge/: Batik bridge (Apache Software Foundation) 
public class org.apache.batik.bridge.SVGFeCompositeElementBridge extends org.apache.batik.bridge.AbstractSVGFilterPrimitiveElementBridge
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.batik.bridge.SVGFeCompositeElementBridge
  super_class: org.apache.batik.bridge.AbstractSVGFilterPrimitiveElementBridge
{
  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.batik.bridge.SVGFeCompositeElementBridge this
         0: .line 47
            aload 0 /* this */
            invokespecial org.apache.batik.bridge.AbstractSVGFilterPrimitiveElementBridge.<init>:()V
            return
        end local 0 // org.apache.batik.bridge.SVGFeCompositeElementBridge this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/batik/bridge/SVGFeCompositeElementBridge;

  public java.lang.String getLocalName();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.batik.bridge.SVGFeCompositeElementBridge this
         0: .line 53
            ldc "feComposite"
            areturn
        end local 0 // org.apache.batik.bridge.SVGFeCompositeElementBridge this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/batik/bridge/SVGFeCompositeElementBridge;

  public org.apache.batik.ext.awt.image.renderable.Filter createFilter(org.apache.batik.bridge.BridgeContext, org.w3c.dom.Element, org.w3c.dom.Element, org.apache.batik.gvt.GraphicsNode, org.apache.batik.ext.awt.image.renderable.Filter, java.awt.geom.Rectangle2D, java.util.Map);
    descriptor: (Lorg/apache/batik/bridge/BridgeContext;Lorg/w3c/dom/Element;Lorg/w3c/dom/Element;Lorg/apache/batik/gvt/GraphicsNode;Lorg/apache/batik/ext/awt/image/renderable/Filter;Ljava/awt/geom/Rectangle2D;Ljava/util/Map;)Lorg/apache/batik/ext/awt/image/renderable/Filter;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=15, args_size=8
        start local 0 // org.apache.batik.bridge.SVGFeCompositeElementBridge this
        start local 1 // org.apache.batik.bridge.BridgeContext ctx
        start local 2 // org.w3c.dom.Element filterElement
        start local 3 // org.w3c.dom.Element filteredElement
        start local 4 // org.apache.batik.gvt.GraphicsNode filteredNode
        start local 5 // org.apache.batik.ext.awt.image.renderable.Filter inputFilter
        start local 6 // java.awt.geom.Rectangle2D filterRegion
        start local 7 // java.util.Map filterMap
         0: .line 83
            aload 2 /* filterElement */
            aload 1 /* ctx */
            invokestatic org.apache.batik.bridge.SVGFeCompositeElementBridge.convertOperator:(Lorg/w3c/dom/Element;Lorg/apache/batik/bridge/BridgeContext;)Lorg/apache/batik/ext/awt/image/CompositeRule;
            astore 8 /* rule */
        start local 8 // org.apache.batik.ext.awt.image.CompositeRule rule
         1: .line 86
            aload 2 /* filterElement */
         2: .line 87
            aload 3 /* filteredElement */
         3: .line 88
            aload 4 /* filteredNode */
         4: .line 89
            aload 5 /* inputFilter */
         5: .line 90
            aload 7 /* filterMap */
         6: .line 91
            aload 1 /* ctx */
         7: .line 86
            invokestatic org.apache.batik.bridge.SVGFeCompositeElementBridge.getIn:(Lorg/w3c/dom/Element;Lorg/w3c/dom/Element;Lorg/apache/batik/gvt/GraphicsNode;Lorg/apache/batik/ext/awt/image/renderable/Filter;Ljava/util/Map;Lorg/apache/batik/bridge/BridgeContext;)Lorg/apache/batik/ext/awt/image/renderable/Filter;
            astore 9 /* in */
        start local 9 // org.apache.batik.ext.awt.image.renderable.Filter in
         8: .line 92
            aload 9 /* in */
            ifnonnull 10
         9: .line 93
            aconst_null
            areturn
        10: .line 97
      StackMap locals: org.apache.batik.ext.awt.image.CompositeRule org.apache.batik.ext.awt.image.renderable.Filter
      StackMap stack:
            aload 2 /* filterElement */
        11: .line 98
            aload 3 /* filteredElement */
        12: .line 99
            aload 4 /* filteredNode */
        13: .line 100
            aload 5 /* inputFilter */
        14: .line 101
            aload 7 /* filterMap */
        15: .line 102
            aload 1 /* ctx */
        16: .line 97
            invokestatic org.apache.batik.bridge.SVGFeCompositeElementBridge.getIn2:(Lorg/w3c/dom/Element;Lorg/w3c/dom/Element;Lorg/apache/batik/gvt/GraphicsNode;Lorg/apache/batik/ext/awt/image/renderable/Filter;Ljava/util/Map;Lorg/apache/batik/bridge/BridgeContext;)Lorg/apache/batik/ext/awt/image/renderable/Filter;
            astore 10 /* in2 */
        start local 10 // org.apache.batik.ext.awt.image.renderable.Filter in2
        17: .line 103
            aload 10 /* in2 */
            ifnonnull 19
        18: .line 104
            aconst_null
            areturn
        19: .line 108
      StackMap locals: org.apache.batik.ext.awt.image.renderable.Filter
      StackMap stack:
            aload 9 /* in */
            invokeinterface org.apache.batik.ext.awt.image.renderable.Filter.getBounds2D:()Ljava/awt/geom/Rectangle2D;
            invokevirtual java.awt.geom.Rectangle2D.clone:()Ljava/lang/Object;
            checkcast java.awt.geom.Rectangle2D
            astore 11 /* defaultRegion */
        start local 11 // java.awt.geom.Rectangle2D defaultRegion
        20: .line 109
            aload 11 /* defaultRegion */
            aload 10 /* in2 */
            invokeinterface org.apache.batik.ext.awt.image.renderable.Filter.getBounds2D:()Ljava/awt/geom/Rectangle2D;
            invokevirtual java.awt.geom.Rectangle2D.add:(Ljava/awt/geom/Rectangle2D;)V
        21: .line 113
            aload 2 /* filterElement */
        22: .line 114
            aload 3 /* filteredElement */
        23: .line 115
            aload 4 /* filteredNode */
        24: .line 116
            aload 11 /* defaultRegion */
        25: .line 117
            aload 6 /* filterRegion */
        26: .line 118
            aload 1 /* ctx */
        27: .line 113
            invokestatic org.apache.batik.bridge.SVGUtilities.convertFilterPrimitiveRegion:(Lorg/w3c/dom/Element;Lorg/w3c/dom/Element;Lorg/apache/batik/gvt/GraphicsNode;Ljava/awt/geom/Rectangle2D;Ljava/awt/geom/Rectangle2D;Lorg/apache/batik/bridge/BridgeContext;)Ljava/awt/geom/Rectangle2D;
        28: .line 112
            astore 12 /* primitiveRegion */
        start local 12 // java.awt.geom.Rectangle2D primitiveRegion
        29: .line 120
            new java.util.ArrayList
            dup
            iconst_2
            invokespecial java.util.ArrayList.<init>:(I)V
            astore 13 /* srcs */
        start local 13 // java.util.List srcs
        30: .line 121
            aload 13 /* srcs */
            aload 10 /* in2 */
            invokeinterface java.util.List.add:(Ljava/lang/Object;)Z
            pop
        31: .line 122
            aload 13 /* srcs */
            aload 9 /* in */
            invokeinterface java.util.List.add:(Ljava/lang/Object;)Z
            pop
        32: .line 123
            new org.apache.batik.ext.awt.image.renderable.CompositeRable8Bit
            dup
            aload 13 /* srcs */
            aload 8 /* rule */
            iconst_1
            invokespecial org.apache.batik.ext.awt.image.renderable.CompositeRable8Bit.<init>:(Ljava/util/List;Lorg/apache/batik/ext/awt/image/CompositeRule;Z)V
            astore 14 /* filter */
        start local 14 // org.apache.batik.ext.awt.image.renderable.Filter filter
        33: .line 126
            aload 14 /* filter */
            aload 2 /* filterElement */
            invokestatic org.apache.batik.bridge.SVGFeCompositeElementBridge.handleColorInterpolationFilters:(Lorg/apache/batik/ext/awt/image/renderable/Filter;Lorg/w3c/dom/Element;)V
        34: .line 128
            new org.apache.batik.ext.awt.image.renderable.PadRable8Bit
            dup
            aload 14 /* filter */
            aload 12 /* primitiveRegion */
            getstatic org.apache.batik.ext.awt.image.PadMode.ZERO_PAD:Lorg/apache/batik/ext/awt/image/PadMode;
            invokespecial org.apache.batik.ext.awt.image.renderable.PadRable8Bit.<init>:(Lorg/apache/batik/ext/awt/image/renderable/Filter;Ljava/awt/geom/Rectangle2D;Lorg/apache/batik/ext/awt/image/PadMode;)V
            astore 14 /* filter */
        35: .line 131
            aload 2 /* filterElement */
            aload 14 /* filter */
            aload 7 /* filterMap */
            invokestatic org.apache.batik.bridge.SVGFeCompositeElementBridge.updateFilterMap:(Lorg/w3c/dom/Element;Lorg/apache/batik/ext/awt/image/renderable/Filter;Ljava/util/Map;)V
        36: .line 133
            aload 14 /* filter */
            areturn
        end local 14 // org.apache.batik.ext.awt.image.renderable.Filter filter
        end local 13 // java.util.List srcs
        end local 12 // java.awt.geom.Rectangle2D primitiveRegion
        end local 11 // java.awt.geom.Rectangle2D defaultRegion
        end local 10 // org.apache.batik.ext.awt.image.renderable.Filter in2
        end local 9 // org.apache.batik.ext.awt.image.renderable.Filter in
        end local 8 // org.apache.batik.ext.awt.image.CompositeRule rule
        end local 7 // java.util.Map filterMap
        end local 6 // java.awt.geom.Rectangle2D filterRegion
        end local 5 // org.apache.batik.ext.awt.image.renderable.Filter inputFilter
        end local 4 // org.apache.batik.gvt.GraphicsNode filteredNode
        end local 3 // org.w3c.dom.Element filteredElement
        end local 2 // org.w3c.dom.Element filterElement
        end local 1 // org.apache.batik.bridge.BridgeContext ctx
        end local 0 // org.apache.batik.bridge.SVGFeCompositeElementBridge this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0   37     0             this  Lorg/apache/batik/bridge/SVGFeCompositeElementBridge;
            0   37     1              ctx  Lorg/apache/batik/bridge/BridgeContext;
            0   37     2    filterElement  Lorg/w3c/dom/Element;
            0   37     3  filteredElement  Lorg/w3c/dom/Element;
            0   37     4     filteredNode  Lorg/apache/batik/gvt/GraphicsNode;
            0   37     5      inputFilter  Lorg/apache/batik/ext/awt/image/renderable/Filter;
            0   37     6     filterRegion  Ljava/awt/geom/Rectangle2D;
            0   37     7        filterMap  Ljava/util/Map;
            1   37     8             rule  Lorg/apache/batik/ext/awt/image/CompositeRule;
            8   37     9               in  Lorg/apache/batik/ext/awt/image/renderable/Filter;
           17   37    10              in2  Lorg/apache/batik/ext/awt/image/renderable/Filter;
           20   37    11    defaultRegion  Ljava/awt/geom/Rectangle2D;
           29   37    12  primitiveRegion  Ljava/awt/geom/Rectangle2D;
           30   37    13             srcs  Ljava/util/List;
           33   37    14           filter  Lorg/apache/batik/ext/awt/image/renderable/Filter;
    MethodParameters:
                 Name  Flags
      ctx              
      filterElement    
      filteredElement  
      filteredNode     
      inputFilter      
      filterRegion     
      filterMap        

  protected static org.apache.batik.ext.awt.image.CompositeRule convertOperator(org.w3c.dom.Element, org.apache.batik.bridge.BridgeContext);
    descriptor: (Lorg/w3c/dom/Element;Lorg/apache/batik/bridge/BridgeContext;)Lorg/apache/batik/ext/awt/image/CompositeRule;
    flags: (0x000c) ACC_PROTECTED, ACC_STATIC
    Code:
      stack=9, locals=7, args_size=2
        start local 0 // org.w3c.dom.Element filterElement
        start local 1 // org.apache.batik.bridge.BridgeContext ctx
         0: .line 145
            aload 0 /* filterElement */
            aconst_null
            ldc "operator"
            invokeinterface org.w3c.dom.Element.getAttributeNS:(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
            astore 2 /* s */
        start local 2 // java.lang.String s
         1: .line 146
            aload 2 /* s */
            invokevirtual java.lang.String.length:()I
            ifne 3
         2: .line 147
            getstatic org.apache.batik.ext.awt.image.CompositeRule.OVER:Lorg/apache/batik/ext/awt/image/CompositeRule;
            areturn
         3: .line 149
      StackMap locals: java.lang.String
      StackMap stack:
            ldc "atop"
            aload 2 /* s */
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 5
         4: .line 150
            getstatic org.apache.batik.ext.awt.image.CompositeRule.ATOP:Lorg/apache/batik/ext/awt/image/CompositeRule;
            areturn
         5: .line 152
      StackMap locals:
      StackMap stack:
            ldc "in"
            aload 2 /* s */
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 7
         6: .line 153
            getstatic org.apache.batik.ext.awt.image.CompositeRule.IN:Lorg/apache/batik/ext/awt/image/CompositeRule;
            areturn
         7: .line 155
      StackMap locals:
      StackMap stack:
            ldc "over"
            aload 2 /* s */
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 9
         8: .line 156
            getstatic org.apache.batik.ext.awt.image.CompositeRule.OVER:Lorg/apache/batik/ext/awt/image/CompositeRule;
            areturn
         9: .line 158
      StackMap locals:
      StackMap stack:
            ldc "out"
            aload 2 /* s */
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 11
        10: .line 159
            getstatic org.apache.batik.ext.awt.image.CompositeRule.OUT:Lorg/apache/batik/ext/awt/image/CompositeRule;
            areturn
        11: .line 161
      StackMap locals:
      StackMap stack:
            ldc "xor"
            aload 2 /* s */
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 13
        12: .line 162
            getstatic org.apache.batik.ext.awt.image.CompositeRule.XOR:Lorg/apache/batik/ext/awt/image/CompositeRule;
            areturn
        13: .line 164
      StackMap locals:
      StackMap stack:
            ldc "arithmetic"
            aload 2 /* s */
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 19
        14: .line 165
            aload 0 /* filterElement */
            ldc "k1"
            fconst_0
            aload 1 /* ctx */
            invokestatic org.apache.batik.bridge.SVGFeCompositeElementBridge.convertNumber:(Lorg/w3c/dom/Element;Ljava/lang/String;FLorg/apache/batik/bridge/BridgeContext;)F
            fstore 3 /* k1 */
        start local 3 // float k1
        15: .line 166
            aload 0 /* filterElement */
            ldc "k2"
            fconst_0
            aload 1 /* ctx */
            invokestatic org.apache.batik.bridge.SVGFeCompositeElementBridge.convertNumber:(Lorg/w3c/dom/Element;Ljava/lang/String;FLorg/apache/batik/bridge/BridgeContext;)F
            fstore 4 /* k2 */
        start local 4 // float k2
        16: .line 167
            aload 0 /* filterElement */
            ldc "k3"
            fconst_0
            aload 1 /* ctx */
            invokestatic org.apache.batik.bridge.SVGFeCompositeElementBridge.convertNumber:(Lorg/w3c/dom/Element;Ljava/lang/String;FLorg/apache/batik/bridge/BridgeContext;)F
            fstore 5 /* k3 */
        start local 5 // float k3
        17: .line 168
            aload 0 /* filterElement */
            ldc "k4"
            fconst_0
            aload 1 /* ctx */
            invokestatic org.apache.batik.bridge.SVGFeCompositeElementBridge.convertNumber:(Lorg/w3c/dom/Element;Ljava/lang/String;FLorg/apache/batik/bridge/BridgeContext;)F
            fstore 6 /* k4 */
        start local 6 // float k4
        18: .line 169
            fload 3 /* k1 */
            fload 4 /* k2 */
            fload 5 /* k3 */
            fload 6 /* k4 */
            invokestatic org.apache.batik.ext.awt.image.CompositeRule.ARITHMETIC:(FFFF)Lorg/apache/batik/ext/awt/image/CompositeRule;
            areturn
        end local 6 // float k4
        end local 5 // float k3
        end local 4 // float k2
        end local 3 // float k1
        19: .line 171
      StackMap locals:
      StackMap stack:
            new org.apache.batik.bridge.BridgeException
            dup
        20: .line 172
            aload 1 /* ctx */
            aload 0 /* filterElement */
            ldc "attribute.malformed"
        21: .line 173
            iconst_2
            anewarray java.lang.Object
            dup
            iconst_0
            ldc "operator"
            aastore
            dup
            iconst_1
            aload 2 /* s */
            aastore
        22: .line 171
            invokespecial org.apache.batik.bridge.BridgeException.<init>:(Lorg/apache/batik/bridge/BridgeContext;Lorg/w3c/dom/Element;Ljava/lang/String;[Ljava/lang/Object;)V
            athrow
        end local 2 // java.lang.String s
        end local 1 // org.apache.batik.bridge.BridgeContext ctx
        end local 0 // org.w3c.dom.Element filterElement
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0   23     0  filterElement  Lorg/w3c/dom/Element;
            0   23     1            ctx  Lorg/apache/batik/bridge/BridgeContext;
            1   23     2              s  Ljava/lang/String;
           15   19     3             k1  F
           16   19     4             k2  F
           17   19     5             k3  F
           18   19     6             k4  F
    MethodParameters:
               Name  Flags
      filterElement  
      ctx            
}
SourceFile: "SVGFeCompositeElementBridge.java"