Nested and Inner Type Summary

Modifier and Type	Class and Description
public static interface	ClassFileWriter.AttributeWriter This writes attributes.
public static class	ClassFileWriter.ConstPoolWriter Constant Pool.
public static class	ClassFileWriter.FieldWriter Field.
public static class	ClassFileWriter.MethodWriter Method.

Modifier and Type	Field and Description
private ClassFileWriter.ConstPoolWriter	constPool
private ClassFileWriter.FieldWriter	fields
private ClassFileWriter.MethodWriter	methods
private ByteStream	output
pack-priv int	superClass
pack-priv int	thisClass

Constructor Summary

Access	Constructor and Description
public	ClassFileWriter(int the major version (`ClassFile#JAVA_4`, `ClassFile#JAVA_5`, ...). major, int the minor version (0 for JDK 1.3 and later). minor) Constructs a class file writer.

Method Summary

Modifier and Type	Method and Description
public byte[]	end(int access flags. accessFlags, int this class. an index indicating its `CONSTANT_Class_info`. thisClass, int super class. an index indicating its `CONSTANT_Class_info`. superClass, int[] implemented interfaces. index numbers indicating their `ClassInfo`. It may be null. interfaces, ClassFileWriter.AttributeWriter attributes of the class file. May be null. aw) Ends writing and returns the contents of the class file.
public void	end(DataOutputStream out, int access flags. accessFlags, int this class. an index indicating its `CONSTANT_Class_info`. thisClass, int super class. an index indicating its `CONSTANT_Class_info`. superClass, int[] implemented interfaces. index numbers indicating their `CONSTATNT_Class_info`. It may be null. interfaces, ClassFileWriter.AttributeWriter attributes of the class file. May be null. aw) Ends writing and writes the contents of the class file into the given output stream.
public ClassFileWriter.ConstPoolWriter	getConstPool() Returns a constant pool.
public ClassFileWriter.FieldWriter	getFieldWriter() Returns a filed writer.
public ClassFileWriter.MethodWriter	getMethodWriter() Returns a method writer.
pack-priv static void	writeAttribute(ByteStream bs, ClassFileWriter.AttributeWriter aw, int attrCount)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

constPool	back to summary
private ClassFileWriter.ConstPoolWriter constPool

fields	back to summary
private ClassFileWriter.FieldWriter fields

methods	back to summary
private ClassFileWriter.MethodWriter methods

output	back to summary
private ByteStream output

superClass	back to summary
pack-priv int superClass

thisClass	back to summary
pack-priv int thisClass

Constructor Detail

ClassFileWriter back to summary

ClassFileWriter	back to summary
public ClassFileWriter(int major, int minor) Constructs a class file writer. Parameters major:int the major version (`ClassFile#JAVA_4`, `ClassFile#JAVA_5`, ...). minor:int the minor version (0 for JDK 1.3 and later).

public ClassFileWriter(int major, int minor)

Constructs a class file writer.

Parameters

major:int: the major version (ClassFile#JAVA_4, ClassFile#JAVA_5, ...).
minor:int: the minor version (0 for JDK 1.3 and later).

Method Detail

end back to summary

end	back to summary
public byte[] end(int accessFlags, int thisClass, int superClass, int[] interfaces, ClassFileWriter.AttributeWriter aw) Ends writing and returns the contents of the class file. Parameters accessFlags:int access flags. thisClass:int this class. an index indicating its `CONSTANT_Class_info`. superClass:int super class. an index indicating its `CONSTANT_Class_info`. interfaces:int[] implemented interfaces. index numbers indicating their `ClassInfo`. It may be null. aw:ClassFileWriter.AttributeWriter attributes of the class file. May be null. See Also `AccessFlag`

public byte[] end(int accessFlags, int thisClass, int superClass, int[] interfaces, ClassFileWriter.AttributeWriter aw)

Ends writing and returns the contents of the class file.

Parameters

accessFlags:int: access flags.
thisClass:int: this class. an index indicating its CONSTANT_Class_info.
superClass:int: super class. an index indicating its CONSTANT_Class_info.
interfaces:int[]: implemented interfaces. index numbers indicating their ClassInfo. It may be null.
aw:ClassFileWriter.AttributeWriter: attributes of the class file. May be null.

See Also

AccessFlag

end back to summary

end	back to summary
public void end(DataOutputStream out, int accessFlags, int thisClass, int superClass, int[] interfaces, ClassFileWriter.AttributeWriter aw) throws IOException Ends writing and writes the contents of the class file into the given output stream. Parameters accessFlags:int access flags. thisClass:int this class. an index indicating its `CONSTANT_Class_info`. superClass:int super class. an index indicating its `CONSTANT_Class_info`. interfaces:int[] implemented interfaces. index numbers indicating their `CONSTATNT_Class_info`. It may be null. aw:ClassFileWriter.AttributeWriter attributes of the class file. May be null. See Also `AccessFlag`

public void end(DataOutputStream out, int accessFlags, int thisClass, int superClass, int[] interfaces, ClassFileWriter.AttributeWriter aw) throws IOException

Ends writing and writes the contents of the class file into the given output stream.

Parameters

accessFlags:int: access flags.
thisClass:int: this class. an index indicating its CONSTANT_Class_info.
superClass:int: super class. an index indicating its CONSTANT_Class_info.
interfaces:int[]: implemented interfaces. index numbers indicating their CONSTATNT_Class_info. It may be null.
aw:ClassFileWriter.AttributeWriter: attributes of the class file. May be null.

See Also

AccessFlag

getConstPool	back to summary
public ClassFileWriter.ConstPoolWriter getConstPool() Returns a constant pool.

getFieldWriter	back to summary
public ClassFileWriter.FieldWriter getFieldWriter() Returns a filed writer.

getMethodWriter	back to summary
public ClassFileWriter.MethodWriter getMethodWriter() Returns a method writer.

writeAttribute	back to summary
pack-priv static void writeAttribute(ByteStream bs, ClassFileWriter.AttributeWriter aw, int attrCount)

javassist.bytecode back to summary

public Interface ClassFileWriter.AttributeWriter

This writes attributes.

For example, the following object writes a synthetic attribute:

ConstPoolWriter cpw = ...;
final int tag = cpw.addUtf8Info("Synthetic");
AttributeWriter aw = new AttributeWriter() {
    public int size() {
        return 1;
    }
    public void write(DataOutputStream out) throws java.io.IOException {
        out.writeShort(tag);
        out.writeInt(0);
    }
};

Method Summary

Modifier and Type	Method and Description
public int	size() Returns the number of attributes that this writer will write.
public void	write(DataOutputStream out) Writes all the contents of the attributes.

Method Detail

size	back to summary
public int size() Returns the number of attributes that this writer will write.

write	back to summary
public void write(DataOutputStream out) throws IOException Writes all the contents of the attributes. The binary representation of the contents is an array of `attribute_info`.

javassist.bytecode back to summary

public final Class ClassFileWriter.ConstPoolWriter

Class Inheritance

extends Object

java.lang.Object
javassist.bytecode.ClassFileWriter.ConstPoolWriter

Constant Pool.

Field Summary

Modifier and Type	Field and Description
protected int	num
pack-priv ByteStream	output
protected int	startPos

Constructor Summary

Access	Constructor and Description
pack-priv	ConstPoolWriter(ByteStream out)

Method Summary

Modifier and Type	Method and Description
public int[]	Returns: an array of indexes indicating `CONSTANT_Class_info`s. addClassInfo(String[] classNames) Makes `CONSTANT_Class_info` objects for each class name.
public int	Returns: the index of the added entry. addClassInfo(String the JVM-internal representation of a class name. e.g. `java/lang/Object`. jvmname) Adds a new `CONSTANT_Class_info` structure.
public int	Returns: the index of the added entry. addClassInfo(int `name_index` name) Adds a new `CONSTANT_Class_info` structure.
public int	Returns: the index of the added entry. addDoubleInfo(double d) Adds a new `CONSTANT_Double_info` structure.
public int	Returns: the index of the added entry. addDynamicInfo(int `bootstrap_method_attr_index`. bootstrap, int `name_and_type_index`. nameAndTypeInfo) Adds a new `CONSTANT_Dynamic_info` structure.
public int	Returns: the index of the added entry. addFieldrefInfo(int `class_index` classInfo, int `name_and_type_index`. nameAndTypeInfo) Adds a new `CONSTANT_Fieldref_info` structure.
public int	Returns: the index of the added entry. addFloatInfo(float f) Adds a new `CONSTANT_Float_info` structure.
public int	Returns: the index of the added entry. addIntegerInfo(int i) Adds a new `CONSTANT_Integer_info` structure.
public int	Returns: the index of the added entry. addInterfaceMethodrefInfo(int `class_index` classInfo, int `name_and_type_index`. nameAndTypeInfo) Adds a new `CONSTANT_InterfaceMethodref_info` structure.
public int	Returns: the index of the added entry. addInvokeDynamicInfo(int `bootstrap_method_attr_index`. bootstrap, int `name_and_type_index`. nameAndTypeInfo) Adds a new `CONSTANT_InvokeDynamic_info` structure.
public int	Returns: the index of the added entry. addLongInfo(long l) Adds a new `CONSTANT_Long_info` structure.
public int	Returns: the index of the added entry. addMethodHandleInfo(int `reference_kind` such as `REF_invokeStatic`. kind, int `reference_index`. index) Adds a new `CONSTANT_MethodHandle_info` structure.
public int	Returns: the index of the added entry. addMethodrefInfo(int `class_index` classInfo, int `name_and_type_index`. nameAndTypeInfo) Adds a new `CONSTANT_Methodref_info` structure.
public int	Returns: the index of the added entry. addMethodTypeInfo(int `descriptor_index`. desc) Adds a new `CONSTANT_MethodType_info` structure.
public int	Returns: the index of the added entry. addNameAndTypeInfo(String `name_index` name, String `descriptor_index` type) Adds a new `CONSTANT_NameAndType_info` structure.
public int	Returns: the index of the added entry. addNameAndTypeInfo(int `name_index` name, int `descriptor_index` type) Adds a new `CONSTANT_NameAndType_info` structure.
public int	Returns: the index of the added entry. addStringInfo(String str) Adds a new `CONSTANT_String_info` structure.
public int	Returns: the index of the added entry. addUtf8Info(String utf8) Adds a new `CONSTANT_Utf8_info` structure.
pack-priv void	end() Writes the contents of this class pool.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

num	back to summary
protected int num

output	back to summary
pack-priv ByteStream output

startPos	back to summary
protected int startPos

Constructor Detail

ConstPoolWriter	back to summary
pack-priv ConstPoolWriter(ByteStream out)

Method Detail

addClassInfo back to summary

addClassInfo	back to summary
public int[] addClassInfo(String[] classNames) Makes `CONSTANT_Class_info` objects for each class name. Returns:int[] an array of indexes indicating `CONSTANT_Class_info`s.

public int[] addClassInfo(String[] classNames)

Makes CONSTANT_Class_info objects for each class name.

Returns:int[]: an array of indexes indicating CONSTANT_Class_infos.

addClassInfo back to summary

addClassInfo	back to summary
public int addClassInfo(String jvmname) Adds a new `CONSTANT_Class_info` structure. This also adds a `CONSTANT_Utf8_info` structure for storing the class name. Parameters jvmname:String the JVM-internal representation of a class name. e.g. `java/lang/Object`. Returns:int the index of the added entry.

public int addClassInfo(String jvmname)

Adds a new CONSTANT_Class_info structure.

This also adds a CONSTANT_Utf8_info structure for storing the class name.

Parameters

jvmname:String: the JVM-internal representation of a class name. e.g. java/lang/Object.

Returns:int

the index of the added entry.

addClassInfo back to summary

addClassInfo	back to summary
public int addClassInfo(int name) Adds a new `CONSTANT_Class_info` structure. Parameters name:int `name_index` Returns:int the index of the added entry.

public int addClassInfo(int name)

Adds a new CONSTANT_Class_info structure.

Parameters

name:int: name_index

Returns:int

the index of the added entry.

addDoubleInfo back to summary

addDoubleInfo	back to summary
public int addDoubleInfo(double d) Adds a new `CONSTANT_Double_info` structure. Returns:int the index of the added entry.

public int addDoubleInfo(double d)

Adds a new CONSTANT_Double_info structure.

Returns:int: the index of the added entry.

addDynamicInfo back to summary

addDynamicInfo	back to summary
public int addDynamicInfo(int bootstrap, int nameAndTypeInfo) Adds a new `CONSTANT_Dynamic_info` structure. Parameters bootstrap:int `bootstrap_method_attr_index`. nameAndTypeInfo:int `name_and_type_index`. Returns:int the index of the added entry. Since 3.26

public int addDynamicInfo(int bootstrap, int nameAndTypeInfo)

Adds a new CONSTANT_Dynamic_info structure.

Parameters

bootstrap:int: bootstrap_method_attr_index.
nameAndTypeInfo:int: name_and_type_index.

Returns:int

the index of the added entry.

Since

3.26

addFieldrefInfo back to summary

addFieldrefInfo	back to summary
public int addFieldrefInfo(int classInfo, int nameAndTypeInfo) Adds a new `CONSTANT_Fieldref_info` structure. Parameters classInfo:int `class_index` nameAndTypeInfo:int `name_and_type_index`. Returns:int the index of the added entry.

public int addFieldrefInfo(int classInfo, int nameAndTypeInfo)

Adds a new CONSTANT_Fieldref_info structure.

Parameters

classInfo:int: class_index
nameAndTypeInfo:int: name_and_type_index.

Returns:int

the index of the added entry.

addFloatInfo back to summary

addFloatInfo	back to summary
public int addFloatInfo(float f) Adds a new `CONSTANT_Float_info` structure. Returns:int the index of the added entry.

public int addFloatInfo(float f)

Adds a new CONSTANT_Float_info structure.

Returns:int: the index of the added entry.

addIntegerInfo back to summary

addIntegerInfo	back to summary
public int addIntegerInfo(int i) Adds a new `CONSTANT_Integer_info` structure. Returns:int the index of the added entry.

public int addIntegerInfo(int i)

Adds a new CONSTANT_Integer_info structure.

Returns:int: the index of the added entry.

addInterfaceMethodrefInfo back to summary

addInterfaceMethodrefInfo	back to summary
public int addInterfaceMethodrefInfo(int classInfo, int nameAndTypeInfo) Adds a new `CONSTANT_InterfaceMethodref_info` structure. Parameters classInfo:int `class_index` nameAndTypeInfo:int `name_and_type_index`. Returns:int the index of the added entry.

public int addInterfaceMethodrefInfo(int classInfo, int nameAndTypeInfo)

Adds a new CONSTANT_InterfaceMethodref_info structure.

Parameters

classInfo:int: class_index
nameAndTypeInfo:int: name_and_type_index.

Returns:int

the index of the added entry.

addInvokeDynamicInfo back to summary

addInvokeDynamicInfo	back to summary
public int addInvokeDynamicInfo(int bootstrap, int nameAndTypeInfo) Adds a new `CONSTANT_InvokeDynamic_info` structure. Parameters bootstrap:int `bootstrap_method_attr_index`. nameAndTypeInfo:int `name_and_type_index`. Returns:int the index of the added entry. Since 3.17.1

public int addInvokeDynamicInfo(int bootstrap, int nameAndTypeInfo)

Adds a new CONSTANT_InvokeDynamic_info structure.

Parameters

bootstrap:int: bootstrap_method_attr_index.
nameAndTypeInfo:int: name_and_type_index.

Returns:int

the index of the added entry.

Since

3.17.1

addLongInfo back to summary

addLongInfo	back to summary
public int addLongInfo(long l) Adds a new `CONSTANT_Long_info` structure. Returns:int the index of the added entry.

public int addLongInfo(long l)

Adds a new CONSTANT_Long_info structure.

Returns:int: the index of the added entry.

addMethodHandleInfo back to summary

addMethodHandleInfo	back to summary
public int addMethodHandleInfo(int kind, int index) Adds a new `CONSTANT_MethodHandle_info` structure. Parameters kind:int `reference_kind` such as `REF_invokeStatic`. index:int `reference_index`. Returns:int the index of the added entry. Since 3.17.1

public int addMethodHandleInfo(int kind, int index)

Adds a new CONSTANT_MethodHandle_info structure.

Parameters

kind:int: reference_kind such as REF_invokeStatic.
index:int: reference_index.

Returns:int

the index of the added entry.

Since

3.17.1

addMethodrefInfo back to summary

addMethodrefInfo	back to summary
public int addMethodrefInfo(int classInfo, int nameAndTypeInfo) Adds a new `CONSTANT_Methodref_info` structure. Parameters classInfo:int `class_index` nameAndTypeInfo:int `name_and_type_index`. Returns:int the index of the added entry.

public int addMethodrefInfo(int classInfo, int nameAndTypeInfo)

Adds a new CONSTANT_Methodref_info structure.

Parameters

classInfo:int: class_index
nameAndTypeInfo:int: name_and_type_index.

Returns:int

the index of the added entry.

addMethodTypeInfo back to summary

addMethodTypeInfo	back to summary
public int addMethodTypeInfo(int desc) Adds a new `CONSTANT_MethodType_info` structure. Parameters desc:int `descriptor_index`. Returns:int the index of the added entry. Since 3.17.1

public int addMethodTypeInfo(int desc)

Adds a new CONSTANT_MethodType_info structure.

Parameters

desc:int: descriptor_index.

Returns:int

the index of the added entry.

Since

3.17.1

addNameAndTypeInfo back to summary

addNameAndTypeInfo	back to summary
public int addNameAndTypeInfo(String name, String type) Adds a new `CONSTANT_NameAndType_info` structure. Parameters name:String `name_index` type:String `descriptor_index` Returns:int the index of the added entry.

public int addNameAndTypeInfo(String name, String type)

Adds a new CONSTANT_NameAndType_info structure.

Parameters

name:String: name_index
type:String: descriptor_index

Returns:int

the index of the added entry.

addNameAndTypeInfo back to summary

addNameAndTypeInfo	back to summary
public int addNameAndTypeInfo(int name, int type) Adds a new `CONSTANT_NameAndType_info` structure. Parameters name:int `name_index` type:int `descriptor_index` Returns:int the index of the added entry.

public int addNameAndTypeInfo(int name, int type)

Adds a new CONSTANT_NameAndType_info structure.

Parameters

name:int: name_index
type:int: descriptor_index

Returns:int

the index of the added entry.

addStringInfo back to summary

addStringInfo	back to summary
public int addStringInfo(String str) Adds a new `CONSTANT_String_info` structure. This also adds a new `CONSTANT_Utf8_info` structure. Returns:int the index of the added entry.

public int addStringInfo(String str)

Adds a new CONSTANT_String_info structure.

This also adds a new CONSTANT_Utf8_info structure.

Returns:int: the index of the added entry.

addUtf8Info back to summary

addUtf8Info	back to summary
public int addUtf8Info(String utf8) Adds a new `CONSTANT_Utf8_info` structure. Returns:int the index of the added entry.

public int addUtf8Info(String utf8)

Adds a new CONSTANT_Utf8_info structure.

Returns:int: the index of the added entry.

end	back to summary
pack-priv void end() Writes the contents of this class pool.

javassist.bytecode back to summary

public final Class ClassFileWriter.FieldWriter

Class Inheritance

extends Object

java.lang.Object
javassist.bytecode.ClassFileWriter.FieldWriter

Field.

Field Summary

Modifier and Type	Field and Description
protected ClassFileWriter.ConstPoolWriter	constPool
private int	fieldCount
protected ByteStream	output

Constructor Summary

Access	Constructor and Description
pack-priv	FieldWriter(ClassFileWriter.ConstPoolWriter cp)

Method Summary

Modifier and Type	Method and Description
public void	add(int access flags. accessFlags, String the field name. name, String the field type. descriptor, ClassFileWriter.AttributeWriter the attributes of the field. may be null. aw) Adds a new field.
public void	add(int access flags. accessFlags, int the field name. an index indicating its `CONSTANT_Utf8_info`. name, int the field type. an index indicating its `CONSTANT_Utf8_info`. descriptor, ClassFileWriter.AttributeWriter the attributes of the field. may be null. aw) Adds a new field.
pack-priv int	dataSize()
pack-priv int	size()
pack-priv void	write(OutputStream out) Writes the added fields.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

constPool	back to summary
protected ClassFileWriter.ConstPoolWriter constPool

fieldCount	back to summary
private int fieldCount

output	back to summary
protected ByteStream output

Constructor Detail

FieldWriter	back to summary
pack-priv FieldWriter(ClassFileWriter.ConstPoolWriter cp)

Method Detail

add back to summary

public void add(int accessFlags, String name, String descriptor, ClassFileWriter.AttributeWriter aw)

Adds a new field.

Parameters

accessFlags:int: access flags.
name:String: the field name.
descriptor:String: the field type.
aw:ClassFileWriter.AttributeWriter: the attributes of the field. may be null.

See Also

AccessFlag

add back to summary

public void add(int accessFlags, int name, int descriptor, ClassFileWriter.AttributeWriter aw)

Adds a new field.

Parameters

accessFlags:int: access flags.
name:int: the field name. an index indicating its CONSTANT_Utf8_info.
descriptor:int: the field type. an index indicating its CONSTANT_Utf8_info.
aw:ClassFileWriter.AttributeWriter: the attributes of the field. may be null.

See Also

AccessFlag

dataSize	back to summary
pack-priv int dataSize()

size	back to summary
pack-priv int size()

write	back to summary
pack-priv void write(OutputStream out) throws IOException Writes the added fields.

javassist.bytecode back to summary

public final Class ClassFileWriter.MethodWriter

Class Inheritance

extends Object

java.lang.Object
javassist.bytecode.ClassFileWriter.MethodWriter

Method.

Field Summary

Modifier and Type	Field and Description
private int	catchCount
private int	catchPos
protected int	codeIndex
protected ClassFileWriter.ConstPoolWriter	constPool
private boolean	isAbstract
private int	methodCount
protected ByteStream	output
protected int	stackIndex
private int	startPos
protected int	throwsIndex

Constructor Summary

Access	Constructor and Description
pack-priv	MethodWriter(ClassFileWriter.ConstPoolWriter cp)

Method Summary

Modifier and Type	Method and Description
public void	add(int b) Appends an 8bit value of bytecode.
public void	add16(int b) Appends a 16bit value of bytecode.
public void	add32(int b) Appends a 32bit value of bytecode.
public void	addCatch(int startPc, int endPc, int handlerPc, int an index indicating a `CONSTANT_Class_info`. catchType) Appends an `exception_table` entry to the `Code_attribute`.
public void	addInvoke(int opcode, String targetClass, String methodName, String descriptor) Appends a invokevirtual, inovkespecial, or invokestatic bytecode.
public void	begin(int access flags. accessFlags, String the method name. name, String the method signature. descriptor, String[] throws clause. It may be null. The class names must be the JVM-internal representations like `java/lang/Exception`. exceptions, ClassFileWriter.AttributeWriter attributes to the `Method_info`. aw) Starts Adding a new method.
public void	begin(int access flags. accessFlags, int the method name. an index indicating its `CONSTANT_Utf8_info`. name, int the field type. an index indicating its `CONSTANT_Utf8_info`. descriptor, int[] throws clause. indexes indicating `CONSTANT_Class_info`s. It may be null. exceptions, ClassFileWriter.AttributeWriter attributes to the `Method_info`. aw) Starts adding a new method.
public void	codeEnd(int maxStack, int maxLocals) Ends appending bytecode.
pack-priv int	dataSize()
public void	end(StackMapTable.Writer a stack map table. may be null. smap, ClassFileWriter.AttributeWriter attributes to the `Code_attribute`. may be null. aw) Ends adding a new method.
pack-priv int	numOfMethods()
public int	Returns: the length in bytes. size() Returns the length of the bytecode that has been added so far.
pack-priv void	write(OutputStream out) Writes the added methods.
private void	writeThrows(int[] exceptions)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

catchCount	back to summary
private int catchCount

catchPos	back to summary
private int catchPos

codeIndex	back to summary
protected int codeIndex

constPool	back to summary
protected ClassFileWriter.ConstPoolWriter constPool

isAbstract	back to summary
private boolean isAbstract

methodCount	back to summary
private int methodCount

output	back to summary
protected ByteStream output

stackIndex	back to summary
protected int stackIndex

startPos	back to summary
private int startPos

throwsIndex	back to summary
protected int throwsIndex

Constructor Detail

MethodWriter	back to summary
pack-priv MethodWriter(ClassFileWriter.ConstPoolWriter cp)

Method Detail

add back to summary

public void add(int b)

Appends an 8bit value of bytecode.

See Also: Opcode

add16	back to summary
public void add16(int b) Appends a 16bit value of bytecode.

add32	back to summary
public void add32(int b) Appends a 32bit value of bytecode.

addCatch back to summary

public void addCatch(int startPc, int endPc, int handlerPc, int catchType)

Appends an exception_table entry to the Code_attribute. This method is available only after the codeEnd method is called.

Parameters

catchType:int: an index indicating a CONSTANT_Class_info.

addInvoke back to summary

public void addInvoke(int opcode, String targetClass, String methodName, String descriptor)

Appends a invokevirtual, inovkespecial, or invokestatic bytecode.

See Also: Opcode

begin back to summary

public void begin(int accessFlags, String name, String descriptor, String[] exceptions, ClassFileWriter.AttributeWriter aw)

Starts Adding a new method.

Parameters

accessFlags:int: access flags.
name:String: the method name.
descriptor:String: the method signature.
exceptions:String[]: throws clause. It may be null. The class names must be the JVM-internal representations like java/lang/Exception.
aw:ClassFileWriter.AttributeWriter: attributes to the Method_info.

begin back to summary

public void begin(int accessFlags, int name, int descriptor, int[] exceptions, ClassFileWriter.AttributeWriter aw)

Starts adding a new method.

Parameters

accessFlags:int: access flags.
name:int: the method name. an index indicating its CONSTANT_Utf8_info.
descriptor:int: the field type. an index indicating its CONSTANT_Utf8_info.
exceptions:int[]: throws clause. indexes indicating CONSTANT_Class_infos. It may be null.
aw:ClassFileWriter.AttributeWriter: attributes to the Method_info.

codeEnd	back to summary
public void codeEnd(int maxStack, int maxLocals) Ends appending bytecode.

dataSize	back to summary
pack-priv int dataSize()

end back to summary

public void end(StackMapTable.Writer smap, ClassFileWriter.AttributeWriter aw)

Ends adding a new method. The add method must be called before the end method is called.

Parameters

smap:StackMapTable.Writer: a stack map table. may be null.
aw:ClassFileWriter.AttributeWriter: attributes to the Code_attribute. may be null.

numOfMethods	back to summary
pack-priv int numOfMethods()

size

back to summary

public int size()

Returns the length of the bytecode that has been added so far.

Returns:int: the length in bytes.
Since: 3.19

write	back to summary
pack-priv void write(OutputStream out) throws IOException Writes the added methods.

writeThrows	back to summary
private void writeThrows(int[] exceptions)

public Class ClassFileWriter

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

public Interface ClassFileWriter.AttributeWriter

Method Summary

Method Detail

public final Class ClassFileWriter.ConstPoolWriter

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

public final Class ClassFileWriter.FieldWriter

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

public final Class ClassFileWriter.MethodWriter

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail