https://logging.apache.org/log4j/2.x/log4j-api/: The Apache Log4j API (The Apache Software Foundation)
  • Ralph Goers (Nextiva)
  • Gary Gregory (Rocket Software)
  • Scott Deboy
  • Remko Popma
  • Nick Williams
  • Matt Sicker (CloudBees)
  • Bruce Brouwer
  • Mikael Ståldal (Spotify)
  • Carter Kozak 
public final class org.apache.logging.log4j.util.PropertiesUtil
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.apache.logging.log4j.util.PropertiesUtil
  super_class: java.lang.Object
{
  private static final java.lang.String LOG4J_PROPERTIES_FILE_NAME;
    descriptor: Ljava/lang/String;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: "log4j2.component.properties"

  private static final java.lang.String LOG4J_SYSTEM_PROPERTIES_FILE_NAME;
    descriptor: Ljava/lang/String;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: "log4j2.system.properties"

  private static final java.lang.String SYSTEM;
    descriptor: Ljava/lang/String;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: "system:"

  private static final org.apache.logging.log4j.util.PropertiesUtil LOG4J_PROPERTIES;
    descriptor: Lorg/apache/logging/log4j/util/PropertiesUtil;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private final org.apache.logging.log4j.util.PropertiesUtil$Environment environment;
    descriptor: Lorg/apache/logging/log4j/util/PropertiesUtil$Environment;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=3, locals=0, args_size=0
         0: .line 51
            new org.apache.logging.log4j.util.PropertiesUtil
            dup
            ldc "log4j2.component.properties"
            invokespecial org.apache.logging.log4j.util.PropertiesUtil.<init>:(Ljava/lang/String;)V
            putstatic org.apache.logging.log4j.util.PropertiesUtil.LOG4J_PROPERTIES:Lorg/apache/logging/log4j/util/PropertiesUtil;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(java.util.Properties);
    descriptor: (Ljava/util/Properties;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=2, args_size=2
        start local 0 // org.apache.logging.log4j.util.PropertiesUtil this
        start local 1 // java.util.Properties props
         0: .line 60
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 61
            aload 0 /* this */
            new org.apache.logging.log4j.util.PropertiesUtil$Environment
            dup
            new org.apache.logging.log4j.util.PropertiesPropertySource
            dup
            aload 1 /* props */
            invokespecial org.apache.logging.log4j.util.PropertiesPropertySource.<init>:(Ljava/util/Properties;)V
            invokespecial org.apache.logging.log4j.util.PropertiesUtil$Environment.<init>:(Lorg/apache/logging/log4j/util/PropertySource;)V
            putfield org.apache.logging.log4j.util.PropertiesUtil.environment:Lorg/apache/logging/log4j/util/PropertiesUtil$Environment;
         2: .line 62
            return
        end local 1 // java.util.Properties props
        end local 0 // org.apache.logging.log4j.util.PropertiesUtil this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0   this  Lorg/apache/logging/log4j/util/PropertiesUtil;
            0    3     1  props  Ljava/util/Properties;
    MethodParameters:
       Name  Flags
      props  final

  public void <init>(java.lang.String);
    descriptor: (Ljava/lang/String;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=2, args_size=2
        start local 0 // org.apache.logging.log4j.util.PropertiesUtil this
        start local 1 // java.lang.String propertiesFileName
         0: .line 70
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 71
            aload 0 /* this */
            new org.apache.logging.log4j.util.PropertiesUtil$Environment
            dup
            new org.apache.logging.log4j.util.PropertyFilePropertySource
            dup
            aload 1 /* propertiesFileName */
            invokespecial org.apache.logging.log4j.util.PropertyFilePropertySource.<init>:(Ljava/lang/String;)V
            invokespecial org.apache.logging.log4j.util.PropertiesUtil$Environment.<init>:(Lorg/apache/logging/log4j/util/PropertySource;)V
            putfield org.apache.logging.log4j.util.PropertiesUtil.environment:Lorg/apache/logging/log4j/util/PropertiesUtil$Environment;
         2: .line 72
            return
        end local 1 // java.lang.String propertiesFileName
        end local 0 // org.apache.logging.log4j.util.PropertiesUtil this
      LocalVariableTable:
        Start  End  Slot                Name  Signature
            0    3     0                this  Lorg/apache/logging/log4j/util/PropertiesUtil;
            0    3     1  propertiesFileName  Ljava/lang/String;
    MethodParameters:
                    Name  Flags
      propertiesFileName  final

  static java.util.Properties loadClose(java.io.InputStream, java.lang.Object);
    descriptor: (Ljava/io/InputStream;Ljava/lang/Object;)Ljava/util/Properties;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=3, locals=6, args_size=2
        start local 0 // java.io.InputStream in
        start local 1 // java.lang.Object source
         0: .line 82
            new java.util.Properties
            dup
            invokespecial java.util.Properties.<init>:()V
            astore 2 /* props */
        start local 2 // java.util.Properties props
         1: .line 83
            aload 0 /* in */
            ifnull 21
         2: .line 85
            aload 2 /* props */
            aload 0 /* in */
            invokevirtual java.util.Properties.load:(Ljava/io/InputStream;)V
         3: .line 86
            goto 17
      StackMap locals: java.io.InputStream java.lang.Object java.util.Properties
      StackMap stack: java.io.IOException
         4: astore 3 /* e */
        start local 3 // java.io.IOException e
         5: .line 87
            new java.lang.StringBuilder
            dup
            ldc "Unable to read "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 1 /* source */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            aload 3 /* e */
            invokestatic org.apache.logging.log4j.util.LowLevelLogUtil.logException:(Ljava/lang/String;Ljava/lang/Throwable;)V
        end local 3 // java.io.IOException e
         6: .line 90
            aload 0 /* in */
            invokevirtual java.io.InputStream.close:()V
         7: .line 91
            goto 21
      StackMap locals:
      StackMap stack: java.io.IOException
         8: astore 5 /* e */
        start local 5 // java.io.IOException e
         9: .line 92
            new java.lang.StringBuilder
            dup
            ldc "Unable to close "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 1 /* source */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            aload 5 /* e */
            invokestatic org.apache.logging.log4j.util.LowLevelLogUtil.logException:(Ljava/lang/String;Ljava/lang/Throwable;)V
        end local 5 // java.io.IOException e
        10: goto 21
        11: .line 88
      StackMap locals:
      StackMap stack: java.lang.Throwable
            astore 4
        12: .line 90
            aload 0 /* in */
            invokevirtual java.io.InputStream.close:()V
        13: .line 91
            goto 16
      StackMap locals: java.io.InputStream java.lang.Object java.util.Properties top java.lang.Throwable
      StackMap stack: java.io.IOException
        14: astore 5 /* e */
        start local 5 // java.io.IOException e
        15: .line 92
            new java.lang.StringBuilder
            dup
            ldc "Unable to close "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 1 /* source */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            aload 5 /* e */
            invokestatic org.apache.logging.log4j.util.LowLevelLogUtil.logException:(Ljava/lang/String;Ljava/lang/Throwable;)V
        end local 5 // java.io.IOException e
        16: .line 94
      StackMap locals:
      StackMap stack:
            aload 4
            athrow
        17: .line 90
      StackMap locals: java.io.InputStream java.lang.Object java.util.Properties
      StackMap stack:
            aload 0 /* in */
            invokevirtual java.io.InputStream.close:()V
        18: .line 91
            goto 21
      StackMap locals:
      StackMap stack: java.io.IOException
        19: astore 5 /* e */
        start local 5 // java.io.IOException e
        20: .line 92
            new java.lang.StringBuilder
            dup
            ldc "Unable to close "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 1 /* source */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            aload 5 /* e */
            invokestatic org.apache.logging.log4j.util.LowLevelLogUtil.logException:(Ljava/lang/String;Ljava/lang/Throwable;)V
        end local 5 // java.io.IOException e
        21: .line 96
      StackMap locals:
      StackMap stack:
            aload 2 /* props */
            areturn
        end local 2 // java.util.Properties props
        end local 1 // java.lang.Object source
        end local 0 // java.io.InputStream in
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   22     0      in  Ljava/io/InputStream;
            0   22     1  source  Ljava/lang/Object;
            1   22     2   props  Ljava/util/Properties;
            5    6     3       e  Ljava/io/IOException;
            9   10     5       e  Ljava/io/IOException;
           15   16     5       e  Ljava/io/IOException;
           20   21     5       e  Ljava/io/IOException;
      Exception table:
        from    to  target  type
           2     3       4  Class java.io.IOException
           6     7       8  Class java.io.IOException
           2     6      11  any
          12    13      14  Class java.io.IOException
          17    18      19  Class java.io.IOException
    MethodParameters:
        Name  Flags
      in      final
      source  final

  public static org.apache.logging.log4j.util.PropertiesUtil getProperties();
    descriptor: ()Lorg/apache/logging/log4j/util/PropertiesUtil;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 105
            getstatic org.apache.logging.log4j.util.PropertiesUtil.LOG4J_PROPERTIES:Lorg/apache/logging/log4j/util/PropertiesUtil;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public boolean hasProperty(java.lang.String);
    descriptor: (Ljava/lang/String;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.logging.log4j.util.PropertiesUtil this
        start local 1 // java.lang.String name
         0: .line 115
            aload 0 /* this */
            getfield org.apache.logging.log4j.util.PropertiesUtil.environment:Lorg/apache/logging/log4j/util/PropertiesUtil$Environment;
            aload 1 /* name */
            invokevirtual org.apache.logging.log4j.util.PropertiesUtil$Environment.containsKey:(Ljava/lang/String;)Z
            ireturn
        end local 1 // java.lang.String name
        end local 0 // org.apache.logging.log4j.util.PropertiesUtil this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/logging/log4j/util/PropertiesUtil;
            0    1     1  name  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      name  final

  public boolean getBooleanProperty(java.lang.String);
    descriptor: (Ljava/lang/String;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.apache.logging.log4j.util.PropertiesUtil this
        start local 1 // java.lang.String name
         0: .line 127
            aload 0 /* this */
            aload 1 /* name */
            iconst_0
            invokevirtual org.apache.logging.log4j.util.PropertiesUtil.getBooleanProperty:(Ljava/lang/String;Z)Z
            ireturn
        end local 1 // java.lang.String name
        end local 0 // org.apache.logging.log4j.util.PropertiesUtil this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/logging/log4j/util/PropertiesUtil;
            0    1     1  name  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      name  final

  public boolean getBooleanProperty(java.lang.String, boolean);
    descriptor: (Ljava/lang/String;Z)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=4, args_size=3
        start local 0 // org.apache.logging.log4j.util.PropertiesUtil this
        start local 1 // java.lang.String name
        start local 2 // boolean defaultValue
         0: .line 138
            aload 0 /* this */
            aload 1 /* name */
            invokevirtual org.apache.logging.log4j.util.PropertiesUtil.getStringProperty:(Ljava/lang/String;)Ljava/lang/String;
            astore 3 /* prop */
        start local 3 // java.lang.String prop
         1: .line 139
            aload 3 /* prop */
            ifnonnull 2
            iload 2 /* defaultValue */
            goto 3
      StackMap locals: java.lang.String
      StackMap stack:
         2: ldc "true"
            aload 3 /* prop */
            invokevirtual java.lang.String.equalsIgnoreCase:(Ljava/lang/String;)Z
      StackMap locals:
      StackMap stack: int
         3: ireturn
        end local 3 // java.lang.String prop
        end local 2 // boolean defaultValue
        end local 1 // java.lang.String name
        end local 0 // org.apache.logging.log4j.util.PropertiesUtil this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    4     0          this  Lorg/apache/logging/log4j/util/PropertiesUtil;
            0    4     1          name  Ljava/lang/String;
            0    4     2  defaultValue  Z
            1    4     3          prop  Ljava/lang/String;
    MethodParameters:
              Name  Flags
      name          final
      defaultValue  final

  public boolean getBooleanProperty(java.lang.String, boolean, boolean);
    descriptor: (Ljava/lang/String;ZZ)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=5, args_size=4
        start local 0 // org.apache.logging.log4j.util.PropertiesUtil this
        start local 1 // java.lang.String name
        start local 2 // boolean defaultValueIfAbsent
        start local 3 // boolean defaultValueIfPresent
         0: .line 152
            aload 0 /* this */
            aload 1 /* name */
            invokevirtual org.apache.logging.log4j.util.PropertiesUtil.getStringProperty:(Ljava/lang/String;)Ljava/lang/String;
            astore 4 /* prop */
        start local 4 // java.lang.String prop
         1: .line 153
            aload 4 /* prop */
            ifnonnull 2
            iload 2 /* defaultValueIfAbsent */
            goto 4
         2: .line 154
      StackMap locals: java.lang.String
      StackMap stack:
            aload 4 /* prop */
            invokevirtual java.lang.String.isEmpty:()Z
            ifeq 3
            iload 3 /* defaultValueIfPresent */
            goto 4
      StackMap locals:
      StackMap stack:
         3: ldc "true"
            aload 4 /* prop */
            invokevirtual java.lang.String.equalsIgnoreCase:(Ljava/lang/String;)Z
         4: .line 153
      StackMap locals:
      StackMap stack: int
            ireturn
        end local 4 // java.lang.String prop
        end local 3 // boolean defaultValueIfPresent
        end local 2 // boolean defaultValueIfAbsent
        end local 1 // java.lang.String name
        end local 0 // org.apache.logging.log4j.util.PropertiesUtil this
      LocalVariableTable:
        Start  End  Slot                   Name  Signature
            0    5     0                   this  Lorg/apache/logging/log4j/util/PropertiesUtil;
            0    5     1                   name  Ljava/lang/String;
            0    5     2   defaultValueIfAbsent  Z
            0    5     3  defaultValueIfPresent  Z
            1    5     4                   prop  Ljava/lang/String;
    MethodParameters:
                       Name  Flags
      name                   final
      defaultValueIfAbsent   final
      defaultValueIfPresent  final

  public java.nio.charset.Charset getCharsetProperty(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/nio/charset/Charset;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.apache.logging.log4j.util.PropertiesUtil this
        start local 1 // java.lang.String name
         0: .line 164
            aload 0 /* this */
            aload 1 /* name */
            invokestatic java.nio.charset.Charset.defaultCharset:()Ljava/nio/charset/Charset;
            invokevirtual org.apache.logging.log4j.util.PropertiesUtil.getCharsetProperty:(Ljava/lang/String;Ljava/nio/charset/Charset;)Ljava/nio/charset/Charset;
            areturn
        end local 1 // java.lang.String name
        end local 0 // org.apache.logging.log4j.util.PropertiesUtil this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/logging/log4j/util/PropertiesUtil;
            0    1     1  name  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      name  final

  public java.nio.charset.Charset getCharsetProperty(java.lang.String, java.nio.charset.Charset);
    descriptor: (Ljava/lang/String;Ljava/nio/charset/Charset;)Ljava/nio/charset/Charset;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=6, args_size=3
        start local 0 // org.apache.logging.log4j.util.PropertiesUtil this
        start local 1 // java.lang.String name
        start local 2 // java.nio.charset.Charset defaultValue
         0: .line 176
            aload 0 /* this */
            aload 1 /* name */
            invokevirtual org.apache.logging.log4j.util.PropertiesUtil.getStringProperty:(Ljava/lang/String;)Ljava/lang/String;
            astore 3 /* charsetName */
        start local 3 // java.lang.String charsetName
         1: .line 177
            aload 3 /* charsetName */
            ifnonnull 3
         2: .line 178
            aload 2 /* defaultValue */
            areturn
         3: .line 180
      StackMap locals: java.lang.String
      StackMap stack:
            aload 3 /* charsetName */
            invokestatic java.nio.charset.Charset.isSupported:(Ljava/lang/String;)Z
            ifeq 5
         4: .line 181
            aload 3 /* charsetName */
            invokestatic java.nio.charset.Charset.forName:(Ljava/lang/String;)Ljava/nio/charset/Charset;
            areturn
         5: .line 183
      StackMap locals:
      StackMap stack:
            invokestatic org.apache.logging.log4j.util.PropertiesUtil.getCharsetsResourceBundle:()Ljava/util/ResourceBundle;
            astore 4 /* bundle */
        start local 4 // java.util.ResourceBundle bundle
         6: .line 184
            aload 4 /* bundle */
            aload 1 /* name */
            invokevirtual java.util.ResourceBundle.containsKey:(Ljava/lang/String;)Z
            ifeq 10
         7: .line 185
            aload 4 /* bundle */
            aload 1 /* name */
            invokevirtual java.util.ResourceBundle.getString:(Ljava/lang/String;)Ljava/lang/String;
            astore 5 /* mapped */
        start local 5 // java.lang.String mapped
         8: .line 186
            aload 5 /* mapped */
            invokestatic java.nio.charset.Charset.isSupported:(Ljava/lang/String;)Z
            ifeq 10
         9: .line 187
            aload 5 /* mapped */
            invokestatic java.nio.charset.Charset.forName:(Ljava/lang/String;)Ljava/nio/charset/Charset;
            areturn
        end local 5 // java.lang.String mapped
        10: .line 190
      StackMap locals: java.util.ResourceBundle
      StackMap stack:
            new java.lang.StringBuilder
            dup
            ldc "Unable to get Charset '"
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 3 /* charsetName */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc "' for property '"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 1 /* name */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc "', using default "
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
        11: .line 191
            aload 2 /* defaultValue */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            ldc " and continuing."
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
        12: .line 190
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokestatic org.apache.logging.log4j.util.LowLevelLogUtil.log:(Ljava/lang/String;)V
        13: .line 192
            aload 2 /* defaultValue */
            areturn
        end local 4 // java.util.ResourceBundle bundle
        end local 3 // java.lang.String charsetName
        end local 2 // java.nio.charset.Charset defaultValue
        end local 1 // java.lang.String name
        end local 0 // org.apache.logging.log4j.util.PropertiesUtil this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0   14     0          this  Lorg/apache/logging/log4j/util/PropertiesUtil;
            0   14     1          name  Ljava/lang/String;
            0   14     2  defaultValue  Ljava/nio/charset/Charset;
            1   14     3   charsetName  Ljava/lang/String;
            6   14     4        bundle  Ljava/util/ResourceBundle;
            8   10     5        mapped  Ljava/lang/String;
    MethodParameters:
              Name  Flags
      name          final
      defaultValue  final

  public double getDoubleProperty(java.lang.String, double);
    descriptor: (Ljava/lang/String;D)D
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=5, args_size=3
        start local 0 // org.apache.logging.log4j.util.PropertiesUtil this
        start local 1 // java.lang.String name
        start local 2 // double defaultValue
         0: .line 203
            aload 0 /* this */
            aload 1 /* name */
            invokevirtual org.apache.logging.log4j.util.PropertiesUtil.getStringProperty:(Ljava/lang/String;)Ljava/lang/String;
            astore 4 /* prop */
        start local 4 // java.lang.String prop
         1: .line 204
            aload 4 /* prop */
            ifnull 6
         2: .line 206
            aload 4 /* prop */
            invokestatic java.lang.Double.parseDouble:(Ljava/lang/String;)D
         3: dreturn
         4: .line 207
      StackMap locals: org.apache.logging.log4j.util.PropertiesUtil java.lang.String double java.lang.String
      StackMap stack: java.lang.Exception
            pop
         5: .line 208
            dload 2 /* defaultValue */
            dreturn
         6: .line 211
      StackMap locals:
      StackMap stack:
            dload 2 /* defaultValue */
            dreturn
        end local 4 // java.lang.String prop
        end local 2 // double defaultValue
        end local 1 // java.lang.String name
        end local 0 // org.apache.logging.log4j.util.PropertiesUtil this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    7     0          this  Lorg/apache/logging/log4j/util/PropertiesUtil;
            0    7     1          name  Ljava/lang/String;
            0    7     2  defaultValue  D
            1    7     4          prop  Ljava/lang/String;
      Exception table:
        from    to  target  type
           2     3       4  Class java.lang.Exception
    MethodParameters:
              Name  Flags
      name          final
      defaultValue  final

  public int getIntegerProperty(java.lang.String, int);
    descriptor: (Ljava/lang/String;I)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=4, args_size=3
        start local 0 // org.apache.logging.log4j.util.PropertiesUtil this
        start local 1 // java.lang.String name
        start local 2 // int defaultValue
         0: .line 223
            aload 0 /* this */
            aload 1 /* name */
            invokevirtual org.apache.logging.log4j.util.PropertiesUtil.getStringProperty:(Ljava/lang/String;)Ljava/lang/String;
            astore 3 /* prop */
        start local 3 // java.lang.String prop
         1: .line 224
            aload 3 /* prop */
            ifnull 6
         2: .line 226
            aload 3 /* prop */
            invokestatic java.lang.Integer.parseInt:(Ljava/lang/String;)I
         3: ireturn
         4: .line 227
      StackMap locals: org.apache.logging.log4j.util.PropertiesUtil java.lang.String int java.lang.String
      StackMap stack: java.lang.Exception
            pop
         5: .line 228
            iload 2 /* defaultValue */
            ireturn
         6: .line 231
      StackMap locals:
      StackMap stack:
            iload 2 /* defaultValue */
            ireturn
        end local 3 // java.lang.String prop
        end local 2 // int defaultValue
        end local 1 // java.lang.String name
        end local 0 // org.apache.logging.log4j.util.PropertiesUtil this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    7     0          this  Lorg/apache/logging/log4j/util/PropertiesUtil;
            0    7     1          name  Ljava/lang/String;
            0    7     2  defaultValue  I
            1    7     3          prop  Ljava/lang/String;
      Exception table:
        from    to  target  type
           2     3       4  Class java.lang.Exception
    MethodParameters:
              Name  Flags
      name          final
      defaultValue  final

  public long getLongProperty(java.lang.String, long);
    descriptor: (Ljava/lang/String;J)J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=5, args_size=3
        start local 0 // org.apache.logging.log4j.util.PropertiesUtil this
        start local 1 // java.lang.String name
        start local 2 // long defaultValue
         0: .line 242
            aload 0 /* this */
            aload 1 /* name */
            invokevirtual org.apache.logging.log4j.util.PropertiesUtil.getStringProperty:(Ljava/lang/String;)Ljava/lang/String;
            astore 4 /* prop */
        start local 4 // java.lang.String prop
         1: .line 243
            aload 4 /* prop */
            ifnull 6
         2: .line 245
            aload 4 /* prop */
            invokestatic java.lang.Long.parseLong:(Ljava/lang/String;)J
         3: lreturn
         4: .line 246
      StackMap locals: org.apache.logging.log4j.util.PropertiesUtil java.lang.String long java.lang.String
      StackMap stack: java.lang.Exception
            pop
         5: .line 247
            lload 2 /* defaultValue */
            lreturn
         6: .line 250
      StackMap locals:
      StackMap stack:
            lload 2 /* defaultValue */
            lreturn
        end local 4 // java.lang.String prop
        end local 2 // long defaultValue
        end local 1 // java.lang.String name
        end local 0 // org.apache.logging.log4j.util.PropertiesUtil this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    7     0          this  Lorg/apache/logging/log4j/util/PropertiesUtil;
            0    7     1          name  Ljava/lang/String;
            0    7     2  defaultValue  J
            1    7     4          prop  Ljava/lang/String;
      Exception table:
        from    to  target  type
           2     3       4  Class java.lang.Exception
    MethodParameters:
              Name  Flags
      name          final
      defaultValue  final

  public java.lang.String getStringProperty(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.logging.log4j.util.PropertiesUtil this
        start local 1 // java.lang.String name
         0: .line 260
            aload 0 /* this */
            getfield org.apache.logging.log4j.util.PropertiesUtil.environment:Lorg/apache/logging/log4j/util/PropertiesUtil$Environment;
            aload 1 /* name */
            invokevirtual org.apache.logging.log4j.util.PropertiesUtil$Environment.get:(Ljava/lang/String;)Ljava/lang/String;
            areturn
        end local 1 // java.lang.String name
        end local 0 // org.apache.logging.log4j.util.PropertiesUtil this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/logging/log4j/util/PropertiesUtil;
            0    1     1  name  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      name  final

  public java.lang.String getStringProperty(java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=4, args_size=3
        start local 0 // org.apache.logging.log4j.util.PropertiesUtil this
        start local 1 // java.lang.String name
        start local 2 // java.lang.String defaultValue
         0: .line 271
            aload 0 /* this */
            aload 1 /* name */
            invokevirtual org.apache.logging.log4j.util.PropertiesUtil.getStringProperty:(Ljava/lang/String;)Ljava/lang/String;
            astore 3 /* prop */
        start local 3 // java.lang.String prop
         1: .line 272
            aload 3 /* prop */
            ifnonnull 2
            aload 2 /* defaultValue */
            goto 3
      StackMap locals: java.lang.String
      StackMap stack:
         2: aload 3 /* prop */
      StackMap locals:
      StackMap stack: java.lang.String
         3: areturn
        end local 3 // java.lang.String prop
        end local 2 // java.lang.String defaultValue
        end local 1 // java.lang.String name
        end local 0 // org.apache.logging.log4j.util.PropertiesUtil this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    4     0          this  Lorg/apache/logging/log4j/util/PropertiesUtil;
            0    4     1          name  Ljava/lang/String;
            0    4     2  defaultValue  Ljava/lang/String;
            1    4     3          prop  Ljava/lang/String;
    MethodParameters:
              Name  Flags
      name          final
      defaultValue  final

  public static java.util.Properties getSystemProperties();
    descriptor: ()Ljava/util/Properties;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=0
         0: .line 282
            new java.util.Properties
            dup
            invokestatic java.lang.System.getProperties:()Ljava/util/Properties;
            invokespecial java.util.Properties.<init>:(Ljava/util/Properties;)V
         1: areturn
         2: .line 283
      StackMap locals:
      StackMap stack: java.lang.SecurityException
            astore 0 /* ex */
        start local 0 // java.lang.SecurityException ex
         3: .line 284
            ldc "Unable to access system properties."
            aload 0 /* ex */
            invokestatic org.apache.logging.log4j.util.LowLevelLogUtil.logException:(Ljava/lang/String;Ljava/lang/Throwable;)V
         4: .line 286
            new java.util.Properties
            dup
            invokespecial java.util.Properties.<init>:()V
            areturn
        end local 0 // java.lang.SecurityException ex
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            3    5     0    ex  Ljava/lang/SecurityException;
      Exception table:
        from    to  target  type
           0     1       2  Class java.lang.SecurityException

  public void reload();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.logging.log4j.util.PropertiesUtil this
         0: .line 296
            aload 0 /* this */
            getfield org.apache.logging.log4j.util.PropertiesUtil.environment:Lorg/apache/logging/log4j/util/PropertiesUtil$Environment;
            invokevirtual org.apache.logging.log4j.util.PropertiesUtil$Environment.reload:()V
         1: .line 297
            return
        end local 0 // org.apache.logging.log4j.util.PropertiesUtil this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/logging/log4j/util/PropertiesUtil;

  public static java.util.Properties extractSubset(java.util.Properties, java.lang.String);
    descriptor: (Ljava/util/Properties;Ljava/lang/String;)Ljava/util/Properties;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=7, args_size=2
        start local 0 // java.util.Properties properties
        start local 1 // java.lang.String prefix
         0: .line 410
            new java.util.Properties
            dup
            invokespecial java.util.Properties.<init>:()V
            astore 2 /* subset */
        start local 2 // java.util.Properties subset
         1: .line 412
            aload 1 /* prefix */
            ifnull 2
            aload 1 /* prefix */
            invokevirtual java.lang.String.length:()I
            ifne 3
         2: .line 413
      StackMap locals: java.util.Properties
      StackMap stack:
            aload 2 /* subset */
            areturn
         3: .line 416
      StackMap locals:
      StackMap stack:
            aload 1 /* prefix */
            aload 1 /* prefix */
            invokevirtual java.lang.String.length:()I
            iconst_1
            isub
            invokevirtual java.lang.String.charAt:(I)C
            bipush 46
            if_icmpeq 4
            new java.lang.StringBuilder
            dup
            aload 1 /* prefix */
            invokestatic java.lang.String.valueOf:(Ljava/lang/Object;)Ljava/lang/String;
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            bipush 46
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            goto 5
      StackMap locals:
      StackMap stack:
         4: aload 1 /* prefix */
      StackMap locals:
      StackMap stack: java.lang.String
         5: astore 3 /* prefixToMatch */
        start local 3 // java.lang.String prefixToMatch
         6: .line 418
            new java.util.ArrayList
            dup
            invokespecial java.util.ArrayList.<init>:()V
            astore 4 /* keys */
        start local 4 // java.util.List keys
         7: .line 420
            aload 0 /* properties */
            invokevirtual java.util.Properties.stringPropertyNames:()Ljava/util/Set;
            invokeinterface java.util.Set.iterator:()Ljava/util/Iterator;
            astore 6
            goto 12
      StackMap locals: java.util.Properties java.lang.String java.util.Properties java.lang.String java.util.List top java.util.Iterator
      StackMap stack:
         8: aload 6
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast java.lang.String
            astore 5 /* key */
        start local 5 // java.lang.String key
         9: .line 421
            aload 5 /* key */
            aload 3 /* prefixToMatch */
            invokevirtual java.lang.String.startsWith:(Ljava/lang/String;)Z
            ifeq 12
        10: .line 422
            aload 2 /* subset */
            aload 5 /* key */
            aload 3 /* prefixToMatch */
            invokevirtual java.lang.String.length:()I
            invokevirtual java.lang.String.substring:(I)Ljava/lang/String;
            aload 0 /* properties */
            aload 5 /* key */
            invokevirtual java.util.Properties.getProperty:(Ljava/lang/String;)Ljava/lang/String;
            invokevirtual java.util.Properties.setProperty:(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/Object;
            pop
        11: .line 423
            aload 4 /* keys */
            aload 5 /* key */
            invokeinterface java.util.List.add:(Ljava/lang/Object;)Z
            pop
        end local 5 // java.lang.String key
        12: .line 420
      StackMap locals:
      StackMap stack:
            aload 6
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 8
        13: .line 426
            aload 4 /* keys */
            invokeinterface java.util.List.iterator:()Ljava/util/Iterator;
            astore 6
            goto 16
      StackMap locals:
      StackMap stack:
        14: aload 6
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast java.lang.String
            astore 5 /* key */
        start local 5 // java.lang.String key
        15: .line 427
            aload 0 /* properties */
            aload 5 /* key */
            invokevirtual java.util.Properties.remove:(Ljava/lang/Object;)Ljava/lang/Object;
            pop
        end local 5 // java.lang.String key
        16: .line 426
      StackMap locals:
      StackMap stack:
            aload 6
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 14
        17: .line 430
            aload 2 /* subset */
            areturn
        end local 4 // java.util.List keys
        end local 3 // java.lang.String prefixToMatch
        end local 2 // java.util.Properties subset
        end local 1 // java.lang.String prefix
        end local 0 // java.util.Properties properties
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0   18     0     properties  Ljava/util/Properties;
            0   18     1         prefix  Ljava/lang/String;
            1   18     2         subset  Ljava/util/Properties;
            6   18     3  prefixToMatch  Ljava/lang/String;
            7   18     4           keys  Ljava/util/List<Ljava/lang/String;>;
            9   12     5            key  Ljava/lang/String;
           15   16     5            key  Ljava/lang/String;
    MethodParameters:
            Name  Flags
      properties  final
      prefix      final

  static java.util.ResourceBundle getCharsetsResourceBundle();
    descriptor: ()Ljava/util/ResourceBundle;
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 434
            ldc "Log4j-charsets"
            invokestatic java.util.ResourceBundle.getBundle:(Ljava/lang/String;)Ljava/util/ResourceBundle;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public static java.util.Map<java.lang.String, java.util.Properties> partitionOnCommonPrefixes(java.util.Properties);
    descriptor: (Ljava/util/Properties;)Ljava/util/Map;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=5, args_size=1
        start local 0 // java.util.Properties properties
         0: .line 446
            new java.util.concurrent.ConcurrentHashMap
            dup
            invokespecial java.util.concurrent.ConcurrentHashMap.<init>:()V
            astore 1 /* parts */
        start local 1 // java.util.Map parts
         1: .line 447
            aload 0 /* properties */
            invokevirtual java.util.Properties.stringPropertyNames:()Ljava/util/Set;
            invokeinterface java.util.Set.iterator:()Ljava/util/Iterator;
            astore 3
            goto 7
      StackMap locals: java.util.Properties java.util.Map top java.util.Iterator
      StackMap stack:
         2: aload 3
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast java.lang.String
            astore 2 /* key */
        start local 2 // java.lang.String key
         3: .line 448
            aload 2 /* key */
            iconst_0
            aload 2 /* key */
            bipush 46
            invokevirtual java.lang.String.indexOf:(I)I
            invokevirtual java.lang.String.substring:(II)Ljava/lang/String;
            astore 4 /* prefix */
        start local 4 // java.lang.String prefix
         4: .line 449
            aload 1 /* parts */
            aload 4 /* prefix */
            invokeinterface java.util.Map.containsKey:(Ljava/lang/Object;)Z
            ifne 6
         5: .line 450
            aload 1 /* parts */
            aload 4 /* prefix */
            new java.util.Properties
            dup
            invokespecial java.util.Properties.<init>:()V
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         6: .line 452
      StackMap locals: java.util.Properties java.util.Map java.lang.String java.util.Iterator java.lang.String
      StackMap stack:
            aload 1 /* parts */
            aload 4 /* prefix */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.util.Properties
            aload 2 /* key */
            aload 2 /* key */
            bipush 46
            invokevirtual java.lang.String.indexOf:(I)I
            iconst_1
            iadd
            invokevirtual java.lang.String.substring:(I)Ljava/lang/String;
            aload 0 /* properties */
            aload 2 /* key */
            invokevirtual java.util.Properties.getProperty:(Ljava/lang/String;)Ljava/lang/String;
            invokevirtual java.util.Properties.setProperty:(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/Object;
            pop
        end local 4 // java.lang.String prefix
        end local 2 // java.lang.String key
         7: .line 447
      StackMap locals: java.util.Properties java.util.Map top java.util.Iterator
      StackMap stack:
            aload 3
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 2
         8: .line 454
            aload 1 /* parts */
            areturn
        end local 1 // java.util.Map parts
        end local 0 // java.util.Properties properties
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    9     0  properties  Ljava/util/Properties;
            1    9     1       parts  Ljava/util/Map<Ljava/lang/String;Ljava/util/Properties;>;
            3    7     2         key  Ljava/lang/String;
            4    7     4      prefix  Ljava/lang/String;
    Signature: (Ljava/util/Properties;)Ljava/util/Map<Ljava/lang/String;Ljava/util/Properties;>;
    MethodParameters:
            Name  Flags
      properties  final

  public boolean isOsWindows();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.apache.logging.log4j.util.PropertiesUtil this
         0: .line 463
            aload 0 /* this */
            ldc "os.name"
            ldc ""
            invokevirtual org.apache.logging.log4j.util.PropertiesUtil.getStringProperty:(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
            ldc "Windows"
            invokevirtual java.lang.String.startsWith:(Ljava/lang/String;)Z
            ireturn
        end local 0 // org.apache.logging.log4j.util.PropertiesUtil this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/logging/log4j/util/PropertiesUtil;
}
SourceFile: "PropertiesUtil.java"
NestMembers:
  org.apache.logging.log4j.util.PropertiesUtil$Environment  org.apache.logging.log4j.util.PropertiesUtil$Environment$1  org.apache.logging.log4j.util.PropertiesUtil$Environment$2
InnerClasses:
  private Environment = org.apache.logging.log4j.util.PropertiesUtil$Environment of org.apache.logging.log4j.util.PropertiesUtil