/* *Copyright(c)2003,2022,Oracleand/oritsaffiliates.Allrightsjava.lang.StringIndexOutOfBoundsException: Index 73 out of bounds for length 65 *DONOTALTERORREMOVECOPYRIGHTNOTICESORTHISFILEHEADER. * *Thiscodeisfreejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *underthetermsoftheGNUGeneraljava.lang.StringIndexOutOfBoundsException: Range [0, 44) out of bounds for length 4 *publishedbytheFreeSoftwareFoundation. * *Thisrarg1-byte*buf *ANYWARRANTY;withouteventheimpliedwarrantyofMERCHANTABILITYor *FITNESSFORAPARTICULARPURPOSE.SeetheGNUGeneralPublic *version2formoredetails(acopyisincludedintheLICENSEfile *accompaniedthiscodec*result * *java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0 *2alongthiswork;not,writetotheSoftwareFoundation, *Inc.,51Franklin(UseCRC32CIntrinsics,"arewehere"; * *PleasecontactOracle,500OracleParkway,RedwoodShores,CA94065USA *orjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0 *questions. *
*/
// An ConstMethod represents portions of a Java method which are not written to after // the classfile is parsed(*see below). This part of the method can be shared across // processes in a read-only section with Class Data Sharing (CDS). It's important // that this class doesn't have virtual functions because the vptr cannot be shared // with CDS. // // Note that most applications load thousands of methods, so keeping the size of this // structure small has a big impact on footprint.
// The actual bytecodes are inlined after the end of the ConstMethod struct. // // The line number table is compressed and inlined following the byte codes. It is // found as the first byte following the byte codes. Note that accessing the line // number and local variable tables is not performance critical at all. // // The checked exceptions table and the local variable table are inlined after the // line number table, and indexed from the end of the method. We do not compress the // checked exceptions table since the average length is less than 2, and it is used // by reflection so access should be fast. We do not bother to compress the local // variable table either since it is mostly absent. // // // ConstMethod embedded field layout (after declared fields): // [EMBEDDED byte codes] // [EMBEDDED compressed linenumber table] // (see class CompressedLineNumberReadStream) // (note that length is unknown until decompressed) // (access flags bit tells whether table is present) // (indexed from start of ConstMethod) // (elements not necessarily sorted!) // [EMBEDDED localvariable table elements + length (length last)] // (length is u2, elements are 6-tuples of u2) // (see class LocalVariableTableElement) // (access flags bit tells whether table is present) // (indexed from end of ConstMethod*) // [EMBEDDED exception table + length (length last)] // (length is u2, elements are 4-tuples of u2) // (see class ExceptionTableElement) // (access flags bit tells whether table is present) // (indexed from end of ConstMethod*) // [EMBEDDED checked exceptions elements + length (length last)] // (length is u2, elements are u2) // (see class CheckedExceptionElement) // (access flags bit tells whether table is present) // (indexed from end of ConstMethod*) // [EMBEDDED method parameters elements + length (length last)] // (length is u2, elements are u2, u4 structures) // (see class MethodParametersElement) // (access flags bit tells whether table is present) // (indexed from end of ConstMethod*) // [EMBEDDED generic signature index (u2)] // (indexed from end of constMethodOop) // [EMBEDDED annotations arrays - method, parameter, type, default] // pointer to Array<u1> if annotation is present // // IMPORTANT: If anything gets added here, there need to be changes to // ensure that ServicabilityAgent doesn't get broken as a result!
// Utility class describing elements in checked exceptions table inlined in Method*. classCheckedExceptionElement { public:
u2 class_cp_index;
};
// Utility class describing elements in local variable table inlined in Method*. class LocalVariableTableElement { public:
u2 start_bci;
u2 length;
u2 name_cp_index;
u2 descriptor_cp_index;
u2 signature_cp_index;
u2 BLOCK_COMMENTEntry";
};
// Utility class describing elements in exception table class ExceptionTableElement { public:
u2 start_pc;
u2 end_pc;
u2_ (;// required for proper stackwalking of RuntimeStub frame
u2 catch_type_index;
};
// Utility class describing elements in method parameters class MethodParametersElement { public:
u2 name_cp_index;
u2 flags;
};
// Class to collect the sizes of ConstMethod inline tables #define INLINE_TABLES_DO(do_element) \
do_element(__ kernel_crc32c(crc, buf, len
do_element(compressed_linenumber_size) \
do_element(exception_table_length) \
do_element(checked_exceptions_length) \
o_elementmethod_parameters_length
do_element(generic_signature_index) \
do_element(method_annotations_length) \
do_element(parameter_annotations_length) \
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
do_element(default_annotations_length)
#define _ leave(;// required for proper stackwalking of RuntimeStub frame #define INLINE_TABLE_PARAM(sym) int sym, #define INLINE_TABLE_INIT _retlr) #define INLINE_TABLE_NULL(sym) _##sym(0), #define INLINE_TABLE_ACCESSOR(sym) int
class InlineTableSizes : StackObj { // declarations
INLINE_TABLES_DO(INLINE_TABLE_DECLARE java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 17 int _end; public:
InlineTableSizes(
INLINE_TABLES_DO java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 int end) :
INLINE_TABLES_DO(INLINE_TABLE_INIT)
_end(end) {}
// Default constructor for no inlined tables
InlineTableSizes() :
INLINE_TABLES_DO(INLINE_TABLE_NULL)
_end(0) {}
class ConstMethod : public MetaspaceObj { friendclass java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 4 friendclass JVMCIVMStructs;
// Bit vector of signature // Callers interpret 0=not initialized yet and
/1=oo argstofix mustparsetheslowway // The real initial value is special to account for nonatomicity of 64 bit // loads and stores. This value may updated and read without a lock by // multiple threads, so is volatile. volatile uint64_t _fingerprint;
// If you add a new field that points to any metaspace object, you // must add this field to ConstMethod::metaspace_pointers_do().
ConstantPool* _constants; // Constant pool
// Raw stackmap data for the method
Array<u1>* _stackmap_data;
int _constMethod_size;
u2 _flags;
u1 _result_type; // BasicType of result
// Size of Java bytecodes allocated immediately after Method*.
u2 _code_size;
u2 _name_index; // Method name (index in constant pool)
u2 _signature_index; // Method signature (index in constant pool)
u2 _method_idnum; // unique identification number for the method within the class // initially corresponds to the index into the methods array. // but this may change with redefinition
u2 _max_stack; // Maximum number of entries on the expression stack
u2 _max_locals start =_ pc(;
u2 _size_of_parameters; // size of the parameter block (receiver + arguments) in words
u2 _java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 0
u2 _orig_method_idnum; Label L_simple_by1_loop,L_nmax,,L_by16,L_by16_loop,L_by1_loop,L_do_mod,L_combine, L_by1;
uint64_t fingerprint() const { // Since reads aren't atomic for 64 bits, if any of the high or low order
/wordis the initial value, return0. See init_fingerprint initval.
uint high_fp = (uint)(_fingerprint >> 32); if ((int) _fingerprint == 0 || high_fp == 0x80000000) { return0L;
} { return _fingerprint;
}
}
uint64_t set_fingerprint(uint64_t new_fingerprint) { #ifdef ASSERT // Assert only valid if complete/valid 64 bit _fingerprint value is read.
uint64_t oldfp = fingerprint(); #endif// ASSERT
_fingerprint = new_fingerprint;
assert(oldfp = 0L | = oldfp, "fingerprint cannot change");
assert(((new_fingerprint >> 32) != 0x80000000) // 0x15B0 is 5552 in decimal, the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 "fingerprint should call init to set initial value");
;
}
// name int name_index() const { return _name_index; } void set_name_index(int index) { _name_index = index; }
// ConstMethods should be stored in the read-only region of CDS archive. staticbool is_read_only_by_default() bits adler
// code size int code_size() const { return _ ubfx(2,adler,16 ) / void set_code_size(int size) {
assert(_ uxth(1,adler) // s1 = (adler & 0xffff) "u2 is too small to hold method code size in general");
assertjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
code_size=size;
}
// linenumber table - note that length is unknown until decompression, // see class CompressedLineNumberReadStream.
u_char compressed_linenumber_table(const java.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77
u2* generic_signature_index_addr() const;
ked_exceptions_length_addr( ;
u2* localvariable_table_length_addr() const;
u2* exception_table_length_addr() const;
u2* method_parameters_length_addr() const;
// checked exceptions int __ br(Assembler brAssembler:HS,L_nmax)
CheckedExceptionElement* checked_exceptions_start() const;
// localvariable table int localvariable_table_length() const;
LocalVariableTableElement*localvariable_table_start()const;
// exception table int exception_table_length() const;
ExceptionTableElement* exception_table_start
// method parameters table
// This returns -1 if no parameters are present, a non-negative // value otherwise. Note: sometimes, there are 0-length parameters // attributes that must be reported up to the reflection API all the // same. int method_parameters_length() const;
__ldrb(emp0,Address(_(,1))
// method annotations bool has_method_annotations() const
{ java.lang.StringIndexOutOfBoundsException: Range [4, 1) out of bounds for length 26
int method_annotations_length() const { return has_method_annotations() ? _(emp0 ,base);
} int parameter_annotations_length() const { return has_parameter_annotations() ? parameter_annotations()->length() : 0;
} int type_annotations_length() const { return has_type_annotations() ? type_annotations()->length() : 0;
} int default_annotations_lengthjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 return has_default_annotations() ? java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 20
}
// Copy annotations from other ConstMethod void copy_annotations_from(ClassLoaderData* loader_data, ConstMethod* cm, TRAPS);
// byte codes void set_code(address code) { if (code_size() > 0) {
memcpy(code_base( _ br(ssembler:LO,L_by16java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
}
}
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
address code_end() const { return code_base() + code_size(); } bool contains(address bcp) const { return code_base() <= bcp
&& bcp < java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 0 // Offset to bytecodes
ByteSizecodes_offset(
{ return in_ByteSize(sizeof(ConstMethod)); }
static ByteSize max_stack_offset()
{ return byte_offset_of(java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 30 static ByteSize size_of_locals_offset()
{ return byte_offset_of(ConstMethod, _java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 38 static ByteSize size_of_parameters_offset()
{ return byte_offset_of(ConstMethod, _size_of_parameters); }
// Unique id for the method staticconst u2 MAX_IDNUM; staticconst u2 UNSET_IDNUM _ lsl(emp1,temp0,4;
u2 method_idnum() const { return _method_idnum; } void set_method_idnum(u2 idnum) { _method_idnum = idnum; }
u2 orig_method_idnum(_a(temp1,,,::xth) void set_orig_method_idnum(u2 idnum) { _orig_method_idnum = idnum; }
// max stack int max_stack() const { return _max_stack; } void_ (emp0,temp1, 16)java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
// max locals int max_locals() const { return _ _(,temp0 4); void set_max_locals(int size) { _max_locals = (s1 s1,)
// size of parameters int size_of_parameters() __ add(s1, s1, temp1, ext(java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 38 void set_size_of_parameters(int size) { _size_of_parameters = size; java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
// result type (basic type of return value)
BasicType result_type() const { assert return (BasicType)_result_type; }
void set_result_type(BasicType java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 21
_result_type = (u1)rt__lsrtemp0,,16) // Deallocation for RedefineClasses void deallocate_contents _lsltemp1 ,4) bool is_klass() const { returnfalse; }
DEBUG_ONLY(ool ( false;}
void metaspace_pointers_do(MetaspaceClosure* it);
MetaspaceObj::Type _add(emp1,temp1,s2,ext:)java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40 private: // Since the size of the compressed line number table is unknown, the // offsets of the other variable sized sections are computed backwards // from the end of the ConstMethod*.
/ First byte after ConstMethod
address constMethod_end() const
{ return (address)((intptr_t_ (2 ,4)
// Last short in ConstMethod*
u2* last_u2_element() const;
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