public class sun.misc.IOUtils
minor version: 0
major version: 59
flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
this_class: sun.misc.IOUtils
super_class: java.lang.Object
{
private static final int DEFAULT_BUFFER_SIZE;
descriptor: I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
ConstantValue: 8192
private static final int MAX_BUFFER_SIZE;
descriptor: I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
ConstantValue: 2147483639
public void <init>();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
start local 0 0: aload 0
invokespecial java.lang.Object.<init>:()V
return
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Lsun/misc/IOUtils;
public static byte[] readExactlyNBytes(java.io.InputStream, int);
descriptor: (Ljava/io/InputStream;I)[B
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=5, locals=3, args_size=2
start local 0 start local 1 0: iload 1
ifge 2
1: new java.io.IOException
dup
new java.lang.StringBuilder
dup
ldc "length cannot be negative: "
invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
iload 1
invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
invokespecial java.io.IOException.<init>:(Ljava/lang/String;)V
athrow
2: StackMap locals:
StackMap stack:
aload 0
iload 1
invokestatic sun.misc.IOUtils.readNBytes:(Ljava/io/InputStream;I)[B
astore 2
start local 2 3: aload 2
arraylength
iload 1
if_icmpge 5
4: new java.io.EOFException
dup
invokespecial java.io.EOFException.<init>:()V
athrow
5: StackMap locals: byte[]
StackMap stack:
aload 2
areturn
end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 6 0 is Ljava/io/InputStream;
0 6 1 length I
3 6 2 data [B
Exceptions:
throws java.io.IOException
MethodParameters:
Name Flags
is
length
public static byte[] readAllBytes(java.io.InputStream);
descriptor: (Ljava/io/InputStream;)[B
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=2, locals=1, args_size=1
start local 0 0: aload 0
ldc 2147483647
invokestatic sun.misc.IOUtils.readNBytes:(Ljava/io/InputStream;I)[B
areturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 is Ljava/io/InputStream;
Exceptions:
throws java.io.IOException
MethodParameters:
Name Flags
is
public static byte[] readNBytes(java.io.InputStream, int);
descriptor: (Ljava/io/InputStream;I)[B
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=5, locals=11, args_size=2
start local 0 start local 1 0: iload 1
ifge 2
1: new java.lang.IllegalArgumentException
dup
ldc "len < 0"
invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
2: StackMap locals:
StackMap stack:
aconst_null
astore 2
start local 2 3: aconst_null
astore 3
start local 3 4: iconst_0
istore 4
start local 4 5: iload 1
istore 5
start local 5 6: StackMap locals: java.io.InputStream int java.util.List byte[] int int
StackMap stack:
iload 5
sipush 8192
invokestatic java.lang.Math.min:(II)I
newarray 8
astore 7
start local 7 7: iconst_0
istore 8
start local 8 8: goto 11
start local 6 9: StackMap locals: int byte[] int
StackMap stack:
iload 8
iload 6
iadd
istore 8
10: iload 5
iload 6
isub
istore 5
end local 6 11: StackMap locals: java.io.InputStream int java.util.List byte[] int int top byte[] int
StackMap stack:
aload 0
aload 7
iload 8
12: aload 7
arraylength
iload 8
isub
iload 5
invokestatic java.lang.Math.min:(II)I
13: invokevirtual java.io.InputStream.read:([BII)I
dup
istore 6
start local 6 14: ifgt 9
15: iload 8
ifle 26
16: ldc 2147483639
iload 4
isub
iload 8
if_icmpge 18
17: new java.lang.OutOfMemoryError
dup
ldc "Required array size too large"
invokespecial java.lang.OutOfMemoryError.<init>:(Ljava/lang/String;)V
athrow
18: StackMap locals: java.io.InputStream int java.util.List byte[] int int int byte[] int
StackMap stack:
iload 4
iload 8
iadd
istore 4
19: aload 3
ifnonnull 22
20: aload 7
astore 3
21: goto 26
22: StackMap locals:
StackMap stack:
aload 2
ifnonnull 25
23: new java.util.ArrayList
dup
invokespecial java.util.ArrayList.<init>:()V
astore 2
24: aload 2
aload 3
invokeinterface java.util.List.add:(Ljava/lang/Object;)Z
pop
25: StackMap locals:
StackMap stack:
aload 2
aload 7
invokeinterface java.util.List.add:(Ljava/lang/Object;)Z
pop
end local 8 end local 7 26: StackMap locals:
StackMap stack:
iload 6
iflt 28
iload 5
27: ifgt 6
28: StackMap locals:
StackMap stack:
aload 2
ifnonnull 35
29: aload 3
ifnonnull 31
30: iconst_0
newarray 8
areturn
31: StackMap locals:
StackMap stack:
aload 3
arraylength
iload 4
if_icmpne 33
32: aload 3
goto 34
StackMap locals:
StackMap stack:
33: aload 3
iload 4
invokestatic java.util.Arrays.copyOf:([BI)[B
34: StackMap locals:
StackMap stack: byte[]
areturn
35: StackMap locals:
StackMap stack:
iload 4
newarray 8
astore 3
36: iconst_0
istore 7
start local 7 37: iload 4
istore 5
38: aload 2
invokeinterface java.util.List.iterator:()Ljava/util/Iterator;
astore 9
goto 44
StackMap locals: java.io.InputStream int java.util.List byte[] int int int int top java.util.Iterator
StackMap stack:
39: aload 9
invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
checkcast byte[]
astore 8
start local 8 40: aload 8
arraylength
iload 5
invokestatic java.lang.Math.min:(II)I
istore 10
start local 10 41: aload 8
iconst_0
aload 3
iload 7
iload 10
invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
42: iload 7
iload 10
iadd
istore 7
43: iload 5
iload 10
isub
istore 5
end local 10 end local 8 44: StackMap locals:
StackMap stack:
aload 9
invokeinterface java.util.Iterator.hasNext:()Z
ifne 39
45: aload 3
areturn
end local 7 end local 6 end local 5 end local 4 end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 46 0 is Ljava/io/InputStream;
0 46 1 len I
3 46 2 bufs Ljava/util/List<[B>;
4 46 3 result [B
5 46 4 total I
6 46 5 remaining I
9 11 6 n I
14 46 6 n I
7 26 7 buf [B
8 26 8 nread I
37 46 7 offset I
40 44 8 b [B
41 44 10 count I
Exceptions:
throws java.io.IOException
MethodParameters:
Name Flags
is
len
public static int readNBytes(java.io.InputStream, byte[], int, int);
descriptor: (Ljava/io/InputStream;[BII)I
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=5, locals=6, args_size=4
start local 0 start local 1 start local 2 start local 3 0: aload 1
invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;)Ljava/lang/Object;
pop
1: iload 2
iflt 2
iload 3
iflt 2
iload 3
aload 1
arraylength
iload 2
isub
if_icmple 3
2: StackMap locals:
StackMap stack:
new java.lang.IndexOutOfBoundsException
dup
invokespecial java.lang.IndexOutOfBoundsException.<init>:()V
athrow
3: StackMap locals:
StackMap stack:
iconst_0
istore 4
start local 4 4: goto 9
5: StackMap locals: int
StackMap stack:
aload 0
aload 1
iload 2
iload 4
iadd
iload 3
iload 4
isub
invokevirtual java.io.InputStream.read:([BII)I
istore 5
start local 5 6: iload 5
ifge 8
7: goto 10
8: StackMap locals: int
StackMap stack:
iload 4
iload 5
iadd
istore 4
end local 5 9: StackMap locals:
StackMap stack:
iload 4
iload 3
if_icmplt 5
10: StackMap locals:
StackMap stack:
iload 4
ireturn
end local 4 end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 11 0 is Ljava/io/InputStream;
0 11 1 b [B
0 11 2 off I
0 11 3 len I
4 11 4 n I
6 9 5 count I
Exceptions:
throws java.io.IOException
MethodParameters:
Name Flags
is
b
off
len
public static byte[] readFully(java.io.InputStream, int, boolean);
descriptor: (Ljava/io/InputStream;IZ)[B
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=5, locals=3, args_size=3
start local 0 start local 1 start local 2 0: iload 1
ifge 2
1: new java.io.IOException
dup
new java.lang.StringBuilder
dup
ldc "length cannot be negative: "
invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
iload 1
invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
invokespecial java.io.IOException.<init>:(Ljava/lang/String;)V
athrow
2: StackMap locals:
StackMap stack:
iload 2
ifeq 4
3: aload 0
iload 1
invokestatic sun.misc.IOUtils.readExactlyNBytes:(Ljava/io/InputStream;I)[B
areturn
4: StackMap locals:
StackMap stack:
aload 0
iload 1
invokestatic sun.misc.IOUtils.readNBytes:(Ljava/io/InputStream;I)[B
areturn
end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 5 0 is Ljava/io/InputStream;
0 5 1 length I
0 5 2 readAll Z
Exceptions:
throws java.io.IOException
MethodParameters:
Name Flags
is
length
readAll
}
SourceFile: "IOUtils.java"