https://logging.apache.org/log4j/2.x/log4j-core/: The Apache Log4j Implementation (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 
class org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer implements org.apache.logging.log4j.core.layout.AbstractStringLayout$Serializer, org.apache.logging.log4j.core.layout.AbstractStringLayout$Serializer2
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer
  super_class: java.lang.Object
{
  private final org.apache.logging.log4j.core.pattern.PatternFormatter[] formatters;
    descriptor: [Lorg/apache/logging/log4j/core/pattern/PatternFormatter;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final org.apache.logging.log4j.core.pattern.RegexReplacement replace;
    descriptor: Lorg/apache/logging/log4j/core/pattern/RegexReplacement;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private void <init>(org.apache.logging.log4j.core.pattern.PatternFormatter[], org.apache.logging.log4j.core.pattern.RegexReplacement);
    descriptor: ([Lorg/apache/logging/log4j/core/pattern/PatternFormatter;Lorg/apache/logging/log4j/core/pattern/RegexReplacement;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer this
        start local 1 // org.apache.logging.log4j.core.pattern.PatternFormatter[] formatters
        start local 2 // org.apache.logging.log4j.core.pattern.RegexReplacement replace
         0: .line 315
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 316
            aload 0 /* this */
            aload 1 /* formatters */
            putfield org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer.formatters:[Lorg/apache/logging/log4j/core/pattern/PatternFormatter;
         2: .line 317
            aload 0 /* this */
            aload 2 /* replace */
            putfield org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer.replace:Lorg/apache/logging/log4j/core/pattern/RegexReplacement;
         3: .line 318
            return
        end local 2 // org.apache.logging.log4j.core.pattern.RegexReplacement replace
        end local 1 // org.apache.logging.log4j.core.pattern.PatternFormatter[] formatters
        end local 0 // org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    4     0        this  Lorg/apache/logging/log4j/core/layout/PatternLayout$PatternSerializer;
            0    4     1  formatters  [Lorg/apache/logging/log4j/core/pattern/PatternFormatter;
            0    4     2     replace  Lorg/apache/logging/log4j/core/pattern/RegexReplacement;
    MethodParameters:
            Name  Flags
      formatters  final
      replace     final

  public java.lang.String toSerializable(org.apache.logging.log4j.core.LogEvent);
    descriptor: (Lorg/apache/logging/log4j/core/LogEvent;)Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=5, args_size=2
        start local 0 // org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer this
        start local 1 // org.apache.logging.log4j.core.LogEvent event
         0: .line 322
            invokestatic org.apache.logging.log4j.core.layout.PatternLayout.getStringBuilder:()Ljava/lang/StringBuilder;
            astore 2 /* sb */
        start local 2 // java.lang.StringBuilder sb
         1: .line 324
            aload 0 /* this */
            aload 1 /* event */
            aload 2 /* sb */
            invokevirtual org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer.toSerializable:(Lorg/apache/logging/log4j/core/LogEvent;Ljava/lang/StringBuilder;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            astore 4
         2: .line 326
            aload 2 /* sb */
            invokestatic org.apache.logging.log4j.core.layout.PatternLayout.trimToMaxSize:(Ljava/lang/StringBuilder;)V
         3: .line 324
            aload 4
            areturn
         4: .line 325
      StackMap locals: org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer org.apache.logging.log4j.core.LogEvent java.lang.StringBuilder
      StackMap stack: java.lang.Throwable
            astore 3
         5: .line 326
            aload 2 /* sb */
            invokestatic org.apache.logging.log4j.core.layout.PatternLayout.trimToMaxSize:(Ljava/lang/StringBuilder;)V
         6: .line 327
            aload 3
            athrow
        end local 2 // java.lang.StringBuilder sb
        end local 1 // org.apache.logging.log4j.core.LogEvent event
        end local 0 // org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    7     0   this  Lorg/apache/logging/log4j/core/layout/PatternLayout$PatternSerializer;
            0    7     1  event  Lorg/apache/logging/log4j/core/LogEvent;
            1    7     2     sb  Ljava/lang/StringBuilder;
      Exception table:
        from    to  target  type
           1     2       4  any
    MethodParameters:
       Name  Flags
      event  final

  public java.lang.StringBuilder toSerializable(org.apache.logging.log4j.core.LogEvent, java.lang.StringBuilder);
    descriptor: (Lorg/apache/logging/log4j/core/LogEvent;Ljava/lang/StringBuilder;)Ljava/lang/StringBuilder;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=5, args_size=3
        start local 0 // org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer this
        start local 1 // org.apache.logging.log4j.core.LogEvent event
        start local 2 // java.lang.StringBuilder buffer
         0: .line 332
            aload 0 /* this */
            getfield org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer.formatters:[Lorg/apache/logging/log4j/core/pattern/PatternFormatter;
            arraylength
            istore 3 /* len */
        start local 3 // int len
         1: .line 333
            iconst_0
            istore 4 /* i */
        start local 4 // int i
         2: goto 5
         3: .line 334
      StackMap locals: int int
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer.formatters:[Lorg/apache/logging/log4j/core/pattern/PatternFormatter;
            iload 4 /* i */
            aaload
            aload 1 /* event */
            aload 2 /* buffer */
            invokevirtual org.apache.logging.log4j.core.pattern.PatternFormatter.format:(Lorg/apache/logging/log4j/core/LogEvent;Ljava/lang/StringBuilder;)V
         4: .line 333
            iinc 4 /* i */ 1
      StackMap locals:
      StackMap stack:
         5: iload 4 /* i */
            iload 3 /* len */
            if_icmplt 3
        end local 4 // int i
         6: .line 336
            aload 0 /* this */
            getfield org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer.replace:Lorg/apache/logging/log4j/core/pattern/RegexReplacement;
            ifnull 11
         7: .line 337
            aload 2 /* buffer */
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            astore 4 /* str */
        start local 4 // java.lang.String str
         8: .line 338
            aload 0 /* this */
            getfield org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer.replace:Lorg/apache/logging/log4j/core/pattern/RegexReplacement;
            aload 4 /* str */
            invokevirtual org.apache.logging.log4j.core.pattern.RegexReplacement.format:(Ljava/lang/String;)Ljava/lang/String;
            astore 4 /* str */
         9: .line 339
            aload 2 /* buffer */
            iconst_0
            invokevirtual java.lang.StringBuilder.setLength:(I)V
        10: .line 340
            aload 2 /* buffer */
            aload 4 /* str */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
        end local 4 // java.lang.String str
        11: .line 342
      StackMap locals:
      StackMap stack:
            aload 2 /* buffer */
            areturn
        end local 3 // int len
        end local 2 // java.lang.StringBuilder buffer
        end local 1 // org.apache.logging.log4j.core.LogEvent event
        end local 0 // org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   12     0    this  Lorg/apache/logging/log4j/core/layout/PatternLayout$PatternSerializer;
            0   12     1   event  Lorg/apache/logging/log4j/core/LogEvent;
            0   12     2  buffer  Ljava/lang/StringBuilder;
            1   12     3     len  I
            2    6     4       i  I
            8   11     4     str  Ljava/lang/String;
    MethodParameters:
        Name  Flags
      event   final
      buffer  final

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=1
        start local 0 // org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer this
         0: .line 347
            new java.lang.StringBuilder
            dup
            invokespecial java.lang.StringBuilder.<init>:()V
            astore 1 /* builder */
        start local 1 // java.lang.StringBuilder builder
         1: .line 348
            aload 1 /* builder */
            aload 0 /* this */
            invokespecial java.lang.Object.toString:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         2: .line 349
            aload 1 /* builder */
            ldc "[formatters="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         3: .line 350
            aload 1 /* builder */
            aload 0 /* this */
            getfield org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer.formatters:[Lorg/apache/logging/log4j/core/pattern/PatternFormatter;
            invokestatic java.util.Arrays.toString:([Ljava/lang/Object;)Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         4: .line 351
            aload 1 /* builder */
            ldc ", replace="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         5: .line 352
            aload 1 /* builder */
            aload 0 /* this */
            getfield org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer.replace:Lorg/apache/logging/log4j/core/pattern/RegexReplacement;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            pop
         6: .line 353
            aload 1 /* builder */
            ldc "]"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         7: .line 354
            aload 1 /* builder */
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 1 // java.lang.StringBuilder builder
        end local 0 // org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    8     0     this  Lorg/apache/logging/log4j/core/layout/PatternLayout$PatternSerializer;
            1    8     1  builder  Ljava/lang/StringBuilder;
}
SourceFile: "PatternLayout.java"
NestHost: org.apache.logging.log4j.core.layout.PatternLayout
InnerClasses:
  public abstract Serializer = org.apache.logging.log4j.core.layout.AbstractStringLayout$Serializer of org.apache.logging.log4j.core.layout.AbstractStringLayout
  public abstract Serializer2 = org.apache.logging.log4j.core.layout.AbstractStringLayout$Serializer2 of org.apache.logging.log4j.core.layout.AbstractStringLayout
  private PatternSerializer = org.apache.logging.log4j.core.layout.PatternLayout$PatternSerializer of org.apache.logging.log4j.core.layout.PatternLayout