JDK 11 java.base.jmod - Base Module
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JDK 11 Base module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\java.base.
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⏎ com/sun/java/util/jar/pack/Constants.java
/*
* Copyright (c) 2001, 2017, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package com.sun.java.util.jar.pack;
import java.util.Arrays;
import java.util.List;
/**
* Shared constants
* @author John Rose
*/
class Constants {
private Constants(){}
public static final int JAVA_MAGIC = 0xCAFEBABE;
/*
Java Class Version numbers history
1.0 to 1.3.X 45,3
1.4 to 1.4.X 46,0
1.5 to 1.5.X 49,0
1.6 to 1.6.X 50,0
1.7 to 1.7.X 51,0
1.8 to 1.8.X 52,0
1.9 to 1.9.X 53,0
1.10 to 1.10.X 54,0
1.11 to 1.11.X 55,0
*/
public static final Package.Version JAVA_MIN_CLASS_VERSION =
Package.Version.of(45, 03);
public static final Package.Version JAVA5_MAX_CLASS_VERSION =
Package.Version.of(49, 00);
public static final Package.Version JAVA6_MAX_CLASS_VERSION =
Package.Version.of(50, 00);
public static final Package.Version JAVA7_MAX_CLASS_VERSION =
Package.Version.of(51, 00);
public static final Package.Version JAVA8_MAX_CLASS_VERSION =
Package.Version.of(52, 00);
public static final Package.Version JAVA9_MAX_CLASS_VERSION =
Package.Version.of(53, 00);
public static final Package.Version JAVA10_MAX_CLASS_VERSION =
Package.Version.of(54, 00);
public static final Package.Version JAVA11_MAX_CLASS_VERSION =
Package.Version.of(55, 00);
public static final int JAVA_PACKAGE_MAGIC = 0xCAFED00D;
public static final Package.Version JAVA5_PACKAGE_VERSION =
Package.Version.of(150, 7);
public static final Package.Version JAVA6_PACKAGE_VERSION =
Package.Version.of(160, 1);
public static final Package.Version JAVA7_PACKAGE_VERSION =
Package.Version.of(170, 1);
public static final Package.Version JAVA8_PACKAGE_VERSION =
Package.Version.of(171, 0);
// upper limit, should point to the latest class version
public static final Package.Version JAVA_MAX_CLASS_VERSION =
JAVA11_MAX_CLASS_VERSION;
// upper limit should point to the latest package version, for version info!.
public static final Package.Version MAX_PACKAGE_VERSION =
JAVA7_PACKAGE_VERSION;
public static final int CONSTANT_POOL_INDEX_LIMIT = 0x10000;
public static final int CONSTANT_POOL_NARROW_LIMIT = 0x00100;
public static final String JAVA_SIGNATURE_CHARS = "BSCIJFDZLV([";
public static final byte CONSTANT_Utf8 = 1;
public static final byte CONSTANT_unused2 = 2; // unused, was Unicode
public static final byte CONSTANT_Integer = 3;
public static final byte CONSTANT_Float = 4;
public static final byte CONSTANT_Long = 5;
public static final byte CONSTANT_Double = 6;
public static final byte CONSTANT_Class = 7;
public static final byte CONSTANT_String = 8;
public static final byte CONSTANT_Fieldref = 9;
public static final byte CONSTANT_Methodref = 10;
public static final byte CONSTANT_InterfaceMethodref = 11;
public static final byte CONSTANT_NameandType = 12;
public static final byte CONSTANT_unused13 = 13;
public static final byte CONSTANT_unused14 = 14;
public static final byte CONSTANT_MethodHandle = 15;
public static final byte CONSTANT_MethodType = 16;
public static final byte CONSTANT_unused17 = 17; // unused
public static final byte CONSTANT_InvokeDynamic = 18;
// pseudo-constants:
public static final byte CONSTANT_None = 0;
public static final byte CONSTANT_Signature = CONSTANT_unused13;
public static final byte CONSTANT_BootstrapMethod = CONSTANT_unused17; // used only in InvokeDynamic constants
public static final byte CONSTANT_Limit = 19;
public static final byte CONSTANT_All = 50; // combined global map
public static final byte CONSTANT_LoadableValue = 51; // used for 'KL' and qldc operands
public static final byte CONSTANT_AnyMember = 52; // union of refs to field or (interface) method
public static final byte CONSTANT_FieldSpecific = 53; // used only for 'KQ' ConstantValue attrs
public static final byte CONSTANT_GroupFirst = CONSTANT_All;
public static final byte CONSTANT_GroupLimit = CONSTANT_FieldSpecific+1;
// CONSTANT_MethodHandle reference kinds
public static final byte REF_getField = 1;
public static final byte REF_getStatic = 2;
public static final byte REF_putField = 3;
public static final byte REF_putStatic = 4;
public static final byte REF_invokeVirtual = 5;
public static final byte REF_invokeStatic = 6;
public static final byte REF_invokeSpecial = 7;
public static final byte REF_newInvokeSpecial = 8;
public static final byte REF_invokeInterface = 9;
// pseudo-access bits
public static final int ACC_IC_LONG_FORM = (1<<16); //for ic_flags
// attribute "context types"
public static final int ATTR_CONTEXT_CLASS = 0;
public static final int ATTR_CONTEXT_FIELD = 1;
public static final int ATTR_CONTEXT_METHOD = 2;
public static final int ATTR_CONTEXT_CODE = 3;
public static final int ATTR_CONTEXT_LIMIT = 4;
public static final String[] ATTR_CONTEXT_NAME
= { "class", "field", "method", "code" };
// predefined attr bits
public static final int
X_ATTR_OVERFLOW = 16,
CLASS_ATTR_SourceFile = 17,
METHOD_ATTR_Code = 17,
FIELD_ATTR_ConstantValue = 17,
CLASS_ATTR_EnclosingMethod = 18,
METHOD_ATTR_Exceptions = 18,
X_ATTR_Signature = 19,
X_ATTR_Deprecated = 20,
X_ATTR_RuntimeVisibleAnnotations = 21,
X_ATTR_RuntimeInvisibleAnnotations = 22,
METHOD_ATTR_RuntimeVisibleParameterAnnotations = 23,
CLASS_ATTR_InnerClasses = 23,
METHOD_ATTR_RuntimeInvisibleParameterAnnotations = 24,
CLASS_ATTR_ClassFile_version = 24,
METHOD_ATTR_AnnotationDefault = 25,
METHOD_ATTR_MethodParameters = 26, // JDK8
X_ATTR_RuntimeVisibleTypeAnnotations = 27, // JDK8
X_ATTR_RuntimeInvisibleTypeAnnotations = 28, // JDK8
CODE_ATTR_StackMapTable = 0, // new in Java 6
CODE_ATTR_LineNumberTable = 1,
CODE_ATTR_LocalVariableTable = 2,
CODE_ATTR_LocalVariableTypeTable = 3;
// File option bits, from LSB in ascending bit position.
public static final int FO_DEFLATE_HINT = 1<<0;
public static final int FO_IS_CLASS_STUB = 1<<1;
// Archive option bits, from LSB in ascending bit position:
public static final int AO_HAVE_SPECIAL_FORMATS = 1<<0;
public static final int AO_HAVE_CP_NUMBERS = 1<<1;
public static final int AO_HAVE_ALL_CODE_FLAGS = 1<<2;
public static final int AO_HAVE_CP_EXTRAS = 1<<3;
public static final int AO_HAVE_FILE_HEADERS = 1<<4;
public static final int AO_DEFLATE_HINT = 1<<5;
public static final int AO_HAVE_FILE_MODTIME = 1<<6;
public static final int AO_HAVE_FILE_OPTIONS = 1<<7;
public static final int AO_HAVE_FILE_SIZE_HI = 1<<8;
public static final int AO_HAVE_CLASS_FLAGS_HI = 1<<9;
public static final int AO_HAVE_FIELD_FLAGS_HI = 1<<10;
public static final int AO_HAVE_METHOD_FLAGS_HI = 1<<11;
public static final int AO_HAVE_CODE_FLAGS_HI = 1<<12;
public static final int AO_UNUSED_MBZ = (-1)<<13; // option bits reserved for future use
public static final int LG_AO_HAVE_XXX_FLAGS_HI = 9;
// visitRefs modes:
static final int VRM_CLASSIC = 0;
static final int VRM_PACKAGE = 1;
public static final int NO_MODTIME = 0; // null modtime value
// some comstantly empty containers
public static final int[] noInts = {};
public static final byte[] noBytes = {};
public static final Object[] noValues = {};
public static final String[] noStrings = {};
public static final List<Object> emptyList = Arrays.asList(noValues);
// meta-coding
public static final int
_meta_default = 0,
_meta_canon_min = 1,
_meta_canon_max = 115,
_meta_arb = 116,
_meta_run = 117,
_meta_pop = 141,
_meta_limit = 189;
// bytecodes
public static final int
_nop = 0, // 0x00
_aconst_null = 1, // 0x01
_iconst_m1 = 2, // 0x02
_iconst_0 = 3, // 0x03
_iconst_1 = 4, // 0x04
_iconst_2 = 5, // 0x05
_iconst_3 = 6, // 0x06
_iconst_4 = 7, // 0x07
_iconst_5 = 8, // 0x08
_lconst_0 = 9, // 0x09
_lconst_1 = 10, // 0x0a
_fconst_0 = 11, // 0x0b
_fconst_1 = 12, // 0x0c
_fconst_2 = 13, // 0x0d
_dconst_0 = 14, // 0x0e
_dconst_1 = 15, // 0x0f
_bipush = 16, // 0x10
_sipush = 17, // 0x11
_ldc = 18, // 0x12
_ldc_w = 19, // 0x13
_ldc2_w = 20, // 0x14
_iload = 21, // 0x15
_lload = 22, // 0x16
_fload = 23, // 0x17
_dload = 24, // 0x18
_aload = 25, // 0x19
_iload_0 = 26, // 0x1a
_iload_1 = 27, // 0x1b
_iload_2 = 28, // 0x1c
_iload_3 = 29, // 0x1d
_lload_0 = 30, // 0x1e
_lload_1 = 31, // 0x1f
_lload_2 = 32, // 0x20
_lload_3 = 33, // 0x21
_fload_0 = 34, // 0x22
_fload_1 = 35, // 0x23
_fload_2 = 36, // 0x24
_fload_3 = 37, // 0x25
_dload_0 = 38, // 0x26
_dload_1 = 39, // 0x27
_dload_2 = 40, // 0x28
_dload_3 = 41, // 0x29
_aload_0 = 42, // 0x2a
_aload_1 = 43, // 0x2b
_aload_2 = 44, // 0x2c
_aload_3 = 45, // 0x2d
_iaload = 46, // 0x2e
_laload = 47, // 0x2f
_faload = 48, // 0x30
_daload = 49, // 0x31
_aaload = 50, // 0x32
_baload = 51, // 0x33
_caload = 52, // 0x34
_saload = 53, // 0x35
_istore = 54, // 0x36
_lstore = 55, // 0x37
_fstore = 56, // 0x38
_dstore = 57, // 0x39
_astore = 58, // 0x3a
_istore_0 = 59, // 0x3b
_istore_1 = 60, // 0x3c
_istore_2 = 61, // 0x3d
_istore_3 = 62, // 0x3e
_lstore_0 = 63, // 0x3f
_lstore_1 = 64, // 0x40
_lstore_2 = 65, // 0x41
_lstore_3 = 66, // 0x42
_fstore_0 = 67, // 0x43
_fstore_1 = 68, // 0x44
_fstore_2 = 69, // 0x45
_fstore_3 = 70, // 0x46
_dstore_0 = 71, // 0x47
_dstore_1 = 72, // 0x48
_dstore_2 = 73, // 0x49
_dstore_3 = 74, // 0x4a
_astore_0 = 75, // 0x4b
_astore_1 = 76, // 0x4c
_astore_2 = 77, // 0x4d
_astore_3 = 78, // 0x4e
_iastore = 79, // 0x4f
_lastore = 80, // 0x50
_fastore = 81, // 0x51
_dastore = 82, // 0x52
_aastore = 83, // 0x53
_bastore = 84, // 0x54
_castore = 85, // 0x55
_sastore = 86, // 0x56
_pop = 87, // 0x57
_pop2 = 88, // 0x58
_dup = 89, // 0x59
_dup_x1 = 90, // 0x5a
_dup_x2 = 91, // 0x5b
_dup2 = 92, // 0x5c
_dup2_x1 = 93, // 0x5d
_dup2_x2 = 94, // 0x5e
_swap = 95, // 0x5f
_iadd = 96, // 0x60
_ladd = 97, // 0x61
_fadd = 98, // 0x62
_dadd = 99, // 0x63
_isub = 100, // 0x64
_lsub = 101, // 0x65
_fsub = 102, // 0x66
_dsub = 103, // 0x67
_imul = 104, // 0x68
_lmul = 105, // 0x69
_fmul = 106, // 0x6a
_dmul = 107, // 0x6b
_idiv = 108, // 0x6c
_ldiv = 109, // 0x6d
_fdiv = 110, // 0x6e
_ddiv = 111, // 0x6f
_irem = 112, // 0x70
_lrem = 113, // 0x71
_frem = 114, // 0x72
_drem = 115, // 0x73
_ineg = 116, // 0x74
_lneg = 117, // 0x75
_fneg = 118, // 0x76
_dneg = 119, // 0x77
_ishl = 120, // 0x78
_lshl = 121, // 0x79
_ishr = 122, // 0x7a
_lshr = 123, // 0x7b
_iushr = 124, // 0x7c
_lushr = 125, // 0x7d
_iand = 126, // 0x7e
_land = 127, // 0x7f
_ior = 128, // 0x80
_lor = 129, // 0x81
_ixor = 130, // 0x82
_lxor = 131, // 0x83
_iinc = 132, // 0x84
_i2l = 133, // 0x85
_i2f = 134, // 0x86
_i2d = 135, // 0x87
_l2i = 136, // 0x88
_l2f = 137, // 0x89
_l2d = 138, // 0x8a
_f2i = 139, // 0x8b
_f2l = 140, // 0x8c
_f2d = 141, // 0x8d
_d2i = 142, // 0x8e
_d2l = 143, // 0x8f
_d2f = 144, // 0x90
_i2b = 145, // 0x91
_i2c = 146, // 0x92
_i2s = 147, // 0x93
_lcmp = 148, // 0x94
_fcmpl = 149, // 0x95
_fcmpg = 150, // 0x96
_dcmpl = 151, // 0x97
_dcmpg = 152, // 0x98
_ifeq = 153, // 0x99
_ifne = 154, // 0x9a
_iflt = 155, // 0x9b
_ifge = 156, // 0x9c
_ifgt = 157, // 0x9d
_ifle = 158, // 0x9e
_if_icmpeq = 159, // 0x9f
_if_icmpne = 160, // 0xa0
_if_icmplt = 161, // 0xa1
_if_icmpge = 162, // 0xa2
_if_icmpgt = 163, // 0xa3
_if_icmple = 164, // 0xa4
_if_acmpeq = 165, // 0xa5
_if_acmpne = 166, // 0xa6
_goto = 167, // 0xa7
_jsr = 168, // 0xa8
_ret = 169, // 0xa9
_tableswitch = 170, // 0xaa
_lookupswitch = 171, // 0xab
_ireturn = 172, // 0xac
_lreturn = 173, // 0xad
_freturn = 174, // 0xae
_dreturn = 175, // 0xaf
_areturn = 176, // 0xb0
_return = 177, // 0xb1
_getstatic = 178, // 0xb2
_putstatic = 179, // 0xb3
_getfield = 180, // 0xb4
_putfield = 181, // 0xb5
_invokevirtual = 182, // 0xb6
_invokespecial = 183, // 0xb7
_invokestatic = 184, // 0xb8
_invokeinterface = 185, // 0xb9
_invokedynamic = 186, // 0xba
_new = 187, // 0xbb
_newarray = 188, // 0xbc
_anewarray = 189, // 0xbd
_arraylength = 190, // 0xbe
_athrow = 191, // 0xbf
_checkcast = 192, // 0xc0
_instanceof = 193, // 0xc1
_monitorenter = 194, // 0xc2
_monitorexit = 195, // 0xc3
_wide = 196, // 0xc4
_multianewarray = 197, // 0xc5
_ifnull = 198, // 0xc6
_ifnonnull = 199, // 0xc7
_goto_w = 200, // 0xc8
_jsr_w = 201, // 0xc9
_bytecode_limit = 202; // 0xca
// End marker, used to terminate bytecode sequences:
public static final int _end_marker = 255;
// Escapes:
public static final int _byte_escape = 254;
public static final int _ref_escape = 253;
// Self-relative pseudo-opcodes for better compression.
// A "linker op" is a bytecode which links to a class member.
// (But in what follows, "invokeinterface" ops are excluded.)
//
// A "self linker op" is a variant bytecode which works only
// with the current class or its super. Because the number of
// possible targets is small, it admits a more compact encoding.
// Self linker ops are allowed to absorb a previous "aload_0" op.
// There are (7 * 4) self linker ops (super or not, aload_0 or not).
//
// For simplicity, we define the full symmetric set of variants.
// However, some of them are relatively useless.
// Self linker ops are enabled by Pack.selfCallVariants (true).
public static final int _first_linker_op = _getstatic;
public static final int _last_linker_op = _invokestatic;
public static final int _num_linker_ops = (_last_linker_op - _first_linker_op) + 1;
public static final int _self_linker_op = _bytecode_limit;
public static final int _self_linker_aload_flag = 1*_num_linker_ops;
public static final int _self_linker_super_flag = 2*_num_linker_ops;
public static final int _self_linker_limit = _self_linker_op + 4*_num_linker_ops;
// An "invoke init" op is a variant of invokespecial which works
// only with the method name "<init>". There are variants which
// link to the current class, the super class, or the class of the
// immediately previous "newinstance" op. There are 3 of these ops.
// They all take method signature references as operands.
// Invoke init ops are enabled by Pack.initCallVariants (true).
public static final int _invokeinit_op = _self_linker_limit;
public static final int _invokeinit_self_option = 0;
public static final int _invokeinit_super_option = 1;
public static final int _invokeinit_new_option = 2;
public static final int _invokeinit_limit = _invokeinit_op+3;
public static final int _pseudo_instruction_limit = _invokeinit_limit;
// linker variant limit == 202+(7*4)+3 == 233
// Ldc variants support strongly typed references to constants.
// This lets us index constant pool entries completely according to tag,
// which is a great simplification.
// Ldc variants gain us only 0.007% improvement in compression ratio,
// but they simplify the file format greatly.
public static final int _xldc_op = _invokeinit_limit;
public static final int _sldc = _ldc; // previously named _aldc
public static final int _cldc = _xldc_op+0;
public static final int _ildc = _xldc_op+1;
public static final int _fldc = _xldc_op+2;
public static final int _sldc_w = _ldc_w; // previously named _aldc_w
public static final int _cldc_w = _xldc_op+3;
public static final int _ildc_w = _xldc_op+4;
public static final int _fldc_w = _xldc_op+5;
public static final int _lldc2_w = _ldc2_w;
public static final int _dldc2_w = _xldc_op+6;
// anything other than primitive, string, or class must be handled with qldc:
public static final int _qldc = _xldc_op+7;
public static final int _qldc_w = _xldc_op+8;
public static final int _xldc_limit = _xldc_op+9;
// handling of InterfaceMethodRef
public static final int _invoke_int_op = _xldc_limit;
public static final int _invokespecial_int = _invoke_int_op+0;
public static final int _invokestatic_int = _invoke_int_op+1;
public static final int _invoke_int_limit = _invoke_int_op+2;
}
⏎ com/sun/java/util/jar/pack/Constants.java
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