https://tomcat.apache.org/: Tomcat Core Logging Package 
public class org.apache.juli.AsyncFileHandler$LogEntry
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.juli.AsyncFileHandler$LogEntry
  super_class: java.lang.Object
{
  private final java.util.logging.LogRecord record;
    descriptor: Ljava/util/logging/LogRecord;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final org.apache.juli.AsyncFileHandler handler;
    descriptor: Lorg/apache/juli/AsyncFileHandler;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  public void <init>(java.util.logging.LogRecord, org.apache.juli.AsyncFileHandler);
    descriptor: (Ljava/util/logging/LogRecord;Lorg/apache/juli/AsyncFileHandler;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.apache.juli.AsyncFileHandler$LogEntry this
        start local 1 // java.util.logging.LogRecord record
        start local 2 // org.apache.juli.AsyncFileHandler handler
         0: .line 176
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 177
            aload 0 /* this */
            aload 1 /* record */
            putfield org.apache.juli.AsyncFileHandler$LogEntry.record:Ljava/util/logging/LogRecord;
         2: .line 178
            aload 0 /* this */
            aload 2 /* handler */
            putfield org.apache.juli.AsyncFileHandler$LogEntry.handler:Lorg/apache/juli/AsyncFileHandler;
         3: .line 179
            return
        end local 2 // org.apache.juli.AsyncFileHandler handler
        end local 1 // java.util.logging.LogRecord record
        end local 0 // org.apache.juli.AsyncFileHandler$LogEntry this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    4     0     this  Lorg/apache/juli/AsyncFileHandler$LogEntry;
            0    4     1   record  Ljava/util/logging/LogRecord;
            0    4     2  handler  Lorg/apache/juli/AsyncFileHandler;
    MethodParameters:
         Name  Flags
      record   
      handler  

  public boolean flush();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.juli.AsyncFileHandler$LogEntry this
         0: .line 182
            aload 0 /* this */
            getfield org.apache.juli.AsyncFileHandler$LogEntry.handler:Lorg/apache/juli/AsyncFileHandler;
            getfield org.apache.juli.AsyncFileHandler.closed:Z
            ifeq 2
         1: .line 183
            iconst_0
            ireturn
         2: .line 185
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.juli.AsyncFileHandler$LogEntry.handler:Lorg/apache/juli/AsyncFileHandler;
            aload 0 /* this */
            getfield org.apache.juli.AsyncFileHandler$LogEntry.record:Ljava/util/logging/LogRecord;
            invokevirtual org.apache.juli.AsyncFileHandler.publishInternal:(Ljava/util/logging/LogRecord;)V
         3: .line 186
            iconst_1
            ireturn
        end local 0 // org.apache.juli.AsyncFileHandler$LogEntry this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/apache/juli/AsyncFileHandler$LogEntry;
}
SourceFile: "AsyncFileHandler.java"
NestHost: org.apache.juli.AsyncFileHandler
InnerClasses:
  protected LogEntry = org.apache.juli.AsyncFileHandler$LogEntry of org.apache.juli.AsyncFileHandler