public final class org.apache.logging.log4j.core.util.NetUtils
minor version: 0
major version: 59
flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
this_class: org.apache.logging.log4j.core.util.NetUtils
super_class: java.lang.Object
{
private static final org.apache.logging.log4j.Logger LOGGER;
descriptor: Lorg/apache/logging/log4j/Logger;
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
private static final java.lang.String UNKNOWN_LOCALHOST;
descriptor: Ljava/lang/String;
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
ConstantValue: "UNKNOWN_LOCALHOST"
static void <clinit>();
descriptor: ()V
flags: (0x0008) ACC_STATIC
Code:
stack=1, locals=0, args_size=0
0: invokestatic org.apache.logging.log4j.status.StatusLogger.getLogger:()Lorg/apache/logging/log4j/status/StatusLogger;
putstatic org.apache.logging.log4j.core.util.NetUtils.LOGGER:Lorg/apache/logging/log4j/Logger;
1: return
LocalVariableTable:
Start End Slot Name Signature
private void <init>();
descriptor: ()V
flags: (0x0002) ACC_PRIVATE
Code:
stack=1, locals=1, args_size=1
start local 0 0: aload 0
invokespecial java.lang.Object.<init>:()V
1: return
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 2 0 this Lorg/apache/logging/log4j/core/util/NetUtils;
public static java.lang.String getLocalHostname();
descriptor: ()Ljava/lang/String;
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=3, locals=6, args_size=0
0: invokestatic java.net.InetAddress.getLocalHost:()Ljava/net/InetAddress;
astore 0
start local 0 1: aload 0
invokevirtual java.net.InetAddress.getHostName:()Ljava/lang/String;
2: areturn
end local 0 3: StackMap locals:
StackMap stack: java.net.UnknownHostException
astore 0
start local 0 4: invokestatic java.net.NetworkInterface.getNetworkInterfaces:()Ljava/util/Enumeration;
astore 1
start local 1 5: goto 16
6: StackMap locals: java.net.UnknownHostException java.util.Enumeration
StackMap stack:
aload 1
invokeinterface java.util.Enumeration.nextElement:()Ljava/lang/Object;
checkcast java.net.NetworkInterface
astore 2
start local 2 7: aload 2
invokevirtual java.net.NetworkInterface.getInetAddresses:()Ljava/util/Enumeration;
astore 3
start local 3 8: goto 15
9: StackMap locals: java.net.NetworkInterface java.util.Enumeration
StackMap stack:
aload 3
invokeinterface java.util.Enumeration.nextElement:()Ljava/lang/Object;
checkcast java.net.InetAddress
astore 4
start local 4 10: aload 4
invokevirtual java.net.InetAddress.isLoopbackAddress:()Z
ifne 15
11: aload 4
invokevirtual java.net.InetAddress.getHostName:()Ljava/lang/String;
astore 5
start local 5 12: aload 5
ifnull 15
13: aload 5
14: areturn
end local 5 end local 4 15: StackMap locals:
StackMap stack:
aload 3
invokeinterface java.util.Enumeration.hasMoreElements:()Z
ifne 9
end local 3 end local 2 16: StackMap locals:
StackMap stack:
aload 1
invokeinterface java.util.Enumeration.hasMoreElements:()Z
ifne 6
end local 1 17: goto 21
StackMap locals: java.net.UnknownHostException
StackMap stack: java.net.SocketException
18: pop
19: getstatic org.apache.logging.log4j.core.util.NetUtils.LOGGER:Lorg/apache/logging/log4j/Logger;
ldc "Could not determine local host name"
aload 0
invokeinterface org.apache.logging.log4j.Logger.error:(Ljava/lang/String;Ljava/lang/Throwable;)V
20: ldc "UNKNOWN_LOCALHOST"
areturn
21: StackMap locals:
StackMap stack:
getstatic org.apache.logging.log4j.core.util.NetUtils.LOGGER:Lorg/apache/logging/log4j/Logger;
ldc "Could not determine local host name"
aload 0
invokeinterface org.apache.logging.log4j.Logger.error:(Ljava/lang/String;Ljava/lang/Throwable;)V
22: ldc "UNKNOWN_LOCALHOST"
areturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
1 3 0 addr Ljava/net/InetAddress;
4 23 0 uhe Ljava/net/UnknownHostException;
5 17 1 interfaces Ljava/util/Enumeration<Ljava/net/NetworkInterface;>;
7 16 2 nic Ljava/net/NetworkInterface;
8 16 3 addresses Ljava/util/Enumeration<Ljava/net/InetAddress;>;
10 15 4 address Ljava/net/InetAddress;
12 15 5 hostname Ljava/lang/String;
Exception table:
from to target type
0 2 3 Class java.net.UnknownHostException
4 14 18 Class java.net.SocketException
15 17 18 Class java.net.SocketException
public static byte[] getMacAddress();
descriptor: ()[B
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=2, locals=5, args_size=0
0: aconst_null
astore 0
start local 0 1: invokestatic java.net.InetAddress.getLocalHost:()Ljava/net/InetAddress;
astore 1
start local 1 2: aload 1
invokestatic java.net.NetworkInterface.getByInetAddress:(Ljava/net/InetAddress;)Ljava/net/NetworkInterface;
astore 2
start local 2 3: aload 2
invokestatic org.apache.logging.log4j.core.util.NetUtils.isUpAndNotLoopback:(Ljava/net/NetworkInterface;)Z
ifeq 5
4: aload 2
invokevirtual java.net.NetworkInterface.getHardwareAddress:()[B
astore 0
5: StackMap locals: byte[] java.net.InetAddress java.net.NetworkInterface
StackMap stack:
aload 0
ifnonnull 15
6: invokestatic java.net.NetworkInterface.getNetworkInterfaces:()Ljava/util/Enumeration;
astore 3
start local 3 7: goto 11
8: StackMap locals: java.util.Enumeration
StackMap stack:
aload 3
invokeinterface java.util.Enumeration.nextElement:()Ljava/lang/Object;
checkcast java.net.NetworkInterface
astore 4
start local 4 9: aload 4
invokestatic org.apache.logging.log4j.core.util.NetUtils.isUpAndNotLoopback:(Ljava/net/NetworkInterface;)Z
ifeq 11
10: aload 4
invokevirtual java.net.NetworkInterface.getHardwareAddress:()[B
astore 0
end local 4 11: StackMap locals:
StackMap stack:
aload 3
invokeinterface java.util.Enumeration.hasMoreElements:()Z
ifeq 15
aload 0
ifnull 8
end local 3 end local 2 12: goto 15
StackMap locals: byte[] java.net.InetAddress
StackMap stack: java.net.SocketException
13: astore 2
start local 2 14: getstatic org.apache.logging.log4j.core.util.NetUtils.LOGGER:Lorg/apache/logging/log4j/Logger;
aload 2
invokeinterface org.apache.logging.log4j.Logger.catching:(Ljava/lang/Throwable;)V
end local 2 15: StackMap locals:
StackMap stack:
aload 0
ifnull 16
aload 0
arraylength
ifne 19
16: StackMap locals:
StackMap stack:
aload 1
invokevirtual java.net.InetAddress.getAddress:()[B
astore 0
end local 1 17: goto 19
StackMap locals: byte[]
StackMap stack: java.net.UnknownHostException
18: pop
19: StackMap locals:
StackMap stack:
aload 0
areturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
1 20 0 mac [B
2 17 1 localHost Ljava/net/InetAddress;
3 12 2 localInterface Ljava/net/NetworkInterface;
7 12 3 networkInterfaces Ljava/util/Enumeration<Ljava/net/NetworkInterface;>;
9 11 4 nic Ljava/net/NetworkInterface;
14 15 2 e Ljava/net/SocketException;
Exception table:
from to target type
2 12 13 Class java.net.SocketException
1 17 18 Class java.net.UnknownHostException
public static java.lang.String getMacAddressString();
descriptor: ()Ljava/lang/String;
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=8, locals=3, args_size=0
0: invokestatic org.apache.logging.log4j.core.util.NetUtils.getMacAddress:()[B
astore 0
start local 0 1: aload 0
ifnull 9
aload 0
arraylength
ifle 9
2: new java.lang.StringBuilder
dup
ldc "%02x"
iconst_1
anewarray java.lang.Object
dup
iconst_0
aload 0
iconst_0
baload
invokestatic java.lang.Byte.valueOf:(B)Ljava/lang/Byte;
aastore
invokestatic java.lang.String.format:(Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;
invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
astore 1
start local 1 3: iconst_1
istore 2
start local 2 4: goto 7
5: StackMap locals: byte[] java.lang.StringBuilder int
StackMap stack:
aload 1
ldc ":"
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
ldc "%02x"
iconst_1
anewarray java.lang.Object
dup
iconst_0
aload 0
iload 2
baload
invokestatic java.lang.Byte.valueOf:(B)Ljava/lang/Byte;
aastore
invokestatic java.lang.String.format:(Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
pop
6: iinc 2 1
StackMap locals:
StackMap stack:
7: iload 2
aload 0
arraylength
if_icmplt 5
end local 2 8: aload 1
invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
areturn
end local 1 9: StackMap locals:
StackMap stack:
aconst_null
areturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
1 10 0 macAddr [B
3 9 1 sb Ljava/lang/StringBuilder;
4 8 2 i I
private static boolean isUpAndNotLoopback(java.net.NetworkInterface);
descriptor: (Ljava/net/NetworkInterface;)Z
flags: (0x000a) ACC_PRIVATE, ACC_STATIC
Code:
stack=1, locals=1, args_size=1
start local 0 0: aload 0
ifnull 1
aload 0
invokevirtual java.net.NetworkInterface.isLoopback:()Z
ifne 1
aload 0
invokevirtual java.net.NetworkInterface.isUp:()Z
ifeq 1
iconst_1
ireturn
StackMap locals:
StackMap stack:
1: iconst_0
ireturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 2 0 ni Ljava/net/NetworkInterface;
Exceptions:
throws java.net.SocketException
MethodParameters:
Name Flags
ni final
public static java.net.URI toURI(java.lang.String);
descriptor: (Ljava/lang/String;)Ljava/net/URI;
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=6, locals=2, args_size=1
start local 0 0: new java.net.URI
dup
aload 0
invokespecial java.net.URI.<init>:(Ljava/lang/String;)V
1: areturn
2: StackMap locals:
StackMap stack: java.net.URISyntaxException
pop
3: new java.net.URL
dup
aload 0
invokespecial java.net.URL.<init>:(Ljava/lang/String;)V
astore 1
start local 1 4: new java.net.URI
dup
aload 1
invokevirtual java.net.URL.getProtocol:()Ljava/lang/String;
aload 1
invokevirtual java.net.URL.getHost:()Ljava/lang/String;
aload 1
invokevirtual java.net.URL.getPath:()Ljava/lang/String;
aconst_null
invokespecial java.net.URI.<init>:(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V
5: areturn
end local 1 6: StackMap locals:
StackMap stack: java.lang.Exception
pop
7: new java.io.File
dup
aload 0
invokespecial java.io.File.<init>:(Ljava/lang/String;)V
invokevirtual java.io.File.toURI:()Ljava/net/URI;
areturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 8 0 path Ljava/lang/String;
4 6 1 url Ljava/net/URL;
Exception table:
from to target type
0 1 2 Class java.net.URISyntaxException
3 5 6 Class java.net.MalformedURLException
3 5 6 Class java.net.URISyntaxException
MethodParameters:
Name Flags
path final
}
SourceFile: "NetUtils.java"