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 
public final class org.apache.logging.log4j.core.util.ReflectionUtil
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.apache.logging.log4j.core.util.ReflectionUtil
  super_class: java.lang.Object
{
  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.logging.log4j.core.util.ReflectionUtil this
         0: .line 34
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 35
            return
        end local 0 // org.apache.logging.log4j.core.util.ReflectionUtil this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/logging/log4j/core/util/ReflectionUtil;

  public static <T extends java.lang.reflect.AccessibleObject extends java.lang.reflect.Member> boolean isAccessible();
    descriptor: (Ljava/lang/reflect/AccessibleObject;)Z
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.reflect.AccessibleObject member
         0: .line 46
            aload 0 /* member */
            ldc "No member provided"
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object;
            pop
         1: .line 47
            aload 0 /* member */
            checkcast java.lang.reflect.Member
            invokeinterface java.lang.reflect.Member.getModifiers:()I
            invokestatic java.lang.reflect.Modifier.isPublic:(I)Z
            ifeq 2
            aload 0 /* member */
            checkcast java.lang.reflect.Member
            invokeinterface java.lang.reflect.Member.getDeclaringClass:()Ljava/lang/Class;
            invokevirtual java.lang.Class.getModifiers:()I
            invokestatic java.lang.reflect.Modifier.isPublic:(I)Z
            ifeq 2
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         2: iconst_0
            ireturn
        end local 0 // java.lang.reflect.AccessibleObject member
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0  member  TT;
    Signature: <T:Ljava/lang/reflect/AccessibleObject;:Ljava/lang/reflect/Member;>(TT;)Z
    MethodParameters:
        Name  Flags
      member  final

  public static <T extends java.lang.reflect.AccessibleObject extends java.lang.reflect.Member> void makeAccessible();
    descriptor: (Ljava/lang/reflect/AccessibleObject;)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.reflect.AccessibleObject member
         0: .line 58
            aload 0 /* member */
            invokestatic org.apache.logging.log4j.core.util.ReflectionUtil.isAccessible:(Ljava/lang/reflect/AccessibleObject;)Z
            ifne 2
            aload 0 /* member */
            invokevirtual java.lang.reflect.AccessibleObject.isAccessible:()Z
            ifne 2
         1: .line 59
            aload 0 /* member */
            iconst_1
            invokevirtual java.lang.reflect.AccessibleObject.setAccessible:(Z)V
         2: .line 61
      StackMap locals:
      StackMap stack:
            return
        end local 0 // java.lang.reflect.AccessibleObject member
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0  member  TT;
    Signature: <T:Ljava/lang/reflect/AccessibleObject;:Ljava/lang/reflect/Member;>(TT;)V
    MethodParameters:
        Name  Flags
      member  final

  public static void makeAccessible(java.lang.reflect.Field);
    descriptor: (Ljava/lang/reflect/Field;)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.reflect.Field field
         0: .line 73
            aload 0 /* field */
            ldc "No field provided"
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object;
            pop
         1: .line 74
            aload 0 /* field */
            invokestatic org.apache.logging.log4j.core.util.ReflectionUtil.isAccessible:(Ljava/lang/reflect/AccessibleObject;)Z
            ifeq 2
            aload 0 /* field */
            invokevirtual java.lang.reflect.Field.getModifiers:()I
            invokestatic java.lang.reflect.Modifier.isFinal:(I)Z
            ifeq 4
      StackMap locals:
      StackMap stack:
         2: aload 0 /* field */
            invokevirtual java.lang.reflect.Field.isAccessible:()Z
            ifne 4
         3: .line 75
            aload 0 /* field */
            iconst_1
            invokevirtual java.lang.reflect.Field.setAccessible:(Z)V
         4: .line 77
      StackMap locals:
      StackMap stack:
            return
        end local 0 // java.lang.reflect.Field field
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    5     0  field  Ljava/lang/reflect/Field;
    MethodParameters:
       Name  Flags
      field  final

  public static java.lang.Object getFieldValue(java.lang.reflect.Field, java.lang.Object);
    descriptor: (Ljava/lang/reflect/Field;Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // java.lang.reflect.Field field
        start local 1 // java.lang.Object instance
         0: .line 90
            aload 0 /* field */
            invokestatic org.apache.logging.log4j.core.util.ReflectionUtil.makeAccessible:(Ljava/lang/reflect/Field;)V
         1: .line 91
            aload 0 /* field */
            invokevirtual java.lang.reflect.Field.getModifiers:()I
            invokestatic java.lang.reflect.Modifier.isStatic:(I)Z
            ifne 3
         2: .line 92
            aload 1 /* instance */
            ldc "No instance given for non-static field"
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object;
            pop
         3: .line 95
      StackMap locals:
      StackMap stack:
            aload 0 /* field */
            aload 1 /* instance */
            invokevirtual java.lang.reflect.Field.get:(Ljava/lang/Object;)Ljava/lang/Object;
         4: areturn
         5: .line 96
      StackMap locals:
      StackMap stack: java.lang.IllegalAccessException
            astore 2 /* e */
        start local 2 // java.lang.IllegalAccessException e
         6: .line 97
            new java.lang.UnsupportedOperationException
            dup
            aload 2 /* e */
            invokespecial java.lang.UnsupportedOperationException.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 2 // java.lang.IllegalAccessException e
        end local 1 // java.lang.Object instance
        end local 0 // java.lang.reflect.Field field
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    7     0     field  Ljava/lang/reflect/Field;
            0    7     1  instance  Ljava/lang/Object;
            6    7     2         e  Ljava/lang/IllegalAccessException;
      Exception table:
        from    to  target  type
           3     4       5  Class java.lang.IllegalAccessException
    MethodParameters:
          Name  Flags
      field     final
      instance  final

  public static java.lang.Object getStaticFieldValue(java.lang.reflect.Field);
    descriptor: (Ljava/lang/reflect/Field;)Ljava/lang/Object;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.reflect.Field field
         0: .line 110
            aload 0 /* field */
            aconst_null
            invokestatic org.apache.logging.log4j.core.util.ReflectionUtil.getFieldValue:(Ljava/lang/reflect/Field;Ljava/lang/Object;)Ljava/lang/Object;
            areturn
        end local 0 // java.lang.reflect.Field field
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    1     0  field  Ljava/lang/reflect/Field;
    MethodParameters:
       Name  Flags
      field  final

  public static void setFieldValue(java.lang.reflect.Field, java.lang.Object, java.lang.Object);
    descriptor: (Ljava/lang/reflect/Field;Ljava/lang/Object;Ljava/lang/Object;)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=4, args_size=3
        start local 0 // java.lang.reflect.Field field
        start local 1 // java.lang.Object instance
        start local 2 // java.lang.Object value
         0: .line 124
            aload 0 /* field */
            invokestatic org.apache.logging.log4j.core.util.ReflectionUtil.makeAccessible:(Ljava/lang/reflect/Field;)V
         1: .line 125
            aload 0 /* field */
            invokevirtual java.lang.reflect.Field.getModifiers:()I
            invokestatic java.lang.reflect.Modifier.isStatic:(I)Z
            ifne 3
         2: .line 126
            aload 1 /* instance */
            ldc "No instance given for non-static field"
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object;
            pop
         3: .line 129
      StackMap locals:
      StackMap stack:
            aload 0 /* field */
            aload 1 /* instance */
            aload 2 /* value */
            invokevirtual java.lang.reflect.Field.set:(Ljava/lang/Object;Ljava/lang/Object;)V
         4: .line 130
            goto 7
      StackMap locals:
      StackMap stack: java.lang.IllegalAccessException
         5: astore 3 /* e */
        start local 3 // java.lang.IllegalAccessException e
         6: .line 131
            new java.lang.UnsupportedOperationException
            dup
            aload 3 /* e */
            invokespecial java.lang.UnsupportedOperationException.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 3 // java.lang.IllegalAccessException e
         7: .line 133
      StackMap locals:
      StackMap stack:
            return
        end local 2 // java.lang.Object value
        end local 1 // java.lang.Object instance
        end local 0 // java.lang.reflect.Field field
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    8     0     field  Ljava/lang/reflect/Field;
            0    8     1  instance  Ljava/lang/Object;
            0    8     2     value  Ljava/lang/Object;
            6    7     3         e  Ljava/lang/IllegalAccessException;
      Exception table:
        from    to  target  type
           3     4       5  Class java.lang.IllegalAccessException
    MethodParameters:
          Name  Flags
      field     final
      instance  final
      value     final

  public static void setStaticFieldValue(java.lang.reflect.Field, java.lang.Object);
    descriptor: (Ljava/lang/reflect/Field;Ljava/lang/Object;)V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // java.lang.reflect.Field field
        start local 1 // java.lang.Object value
         0: .line 144
            aload 0 /* field */
            aconst_null
            aload 1 /* value */
            invokestatic org.apache.logging.log4j.core.util.ReflectionUtil.setFieldValue:(Ljava/lang/reflect/Field;Ljava/lang/Object;Ljava/lang/Object;)V
         1: .line 145
            return
        end local 1 // java.lang.Object value
        end local 0 // java.lang.reflect.Field field
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    2     0  field  Ljava/lang/reflect/Field;
            0    2     1  value  Ljava/lang/Object;
    MethodParameters:
       Name  Flags
      field  final
      value  final

  public static <T> java.lang.reflect.Constructor<T> getDefaultConstructor(java.lang.Class<T>);
    descriptor: (Ljava/lang/Class;)Ljava/lang/reflect/Constructor;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // java.lang.Class clazz
         0: .line 156
            aload 0 /* clazz */
            ldc "No class provided"
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object;
            pop
         1: .line 158
            aload 0 /* clazz */
            iconst_0
            anewarray java.lang.Class
            invokevirtual java.lang.Class.getDeclaredConstructor:([Ljava/lang/Class;)Ljava/lang/reflect/Constructor;
            astore 1 /* constructor */
        start local 1 // java.lang.reflect.Constructor constructor
         2: .line 159
            aload 1 /* constructor */
            invokestatic org.apache.logging.log4j.core.util.ReflectionUtil.makeAccessible:(Ljava/lang/reflect/AccessibleObject;)V
         3: .line 160
            aload 1 /* constructor */
         4: areturn
        end local 1 // java.lang.reflect.Constructor constructor
         5: .line 161
      StackMap locals:
      StackMap stack: java.lang.NoSuchMethodException
            pop
         6: .line 163
            aload 0 /* clazz */
            iconst_0
            anewarray java.lang.Class
            invokevirtual java.lang.Class.getConstructor:([Ljava/lang/Class;)Ljava/lang/reflect/Constructor;
            astore 1 /* constructor */
        start local 1 // java.lang.reflect.Constructor constructor
         7: .line 164
            aload 1 /* constructor */
            invokestatic org.apache.logging.log4j.core.util.ReflectionUtil.makeAccessible:(Ljava/lang/reflect/AccessibleObject;)V
         8: .line 165
            aload 1 /* constructor */
         9: areturn
        end local 1 // java.lang.reflect.Constructor constructor
        10: .line 166
      StackMap locals:
      StackMap stack: java.lang.NoSuchMethodException
            astore 1 /* e */
        start local 1 // java.lang.NoSuchMethodException e
        11: .line 167
            new java.lang.IllegalStateException
            dup
            aload 1 /* e */
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 1 // java.lang.NoSuchMethodException e
        end local 0 // java.lang.Class clazz
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0   12     0        clazz  Ljava/lang/Class<TT;>;
            2    5     1  constructor  Ljava/lang/reflect/Constructor<TT;>;
            7   10     1  constructor  Ljava/lang/reflect/Constructor<TT;>;
           11   12     1            e  Ljava/lang/NoSuchMethodException;
      Exception table:
        from    to  target  type
           1     4       5  Class java.lang.NoSuchMethodException
           6     9      10  Class java.lang.NoSuchMethodException
    Signature: <T:Ljava/lang/Object;>(Ljava/lang/Class<TT;>;)Ljava/lang/reflect/Constructor<TT;>;
    MethodParameters:
       Name  Flags
      clazz  final

  public static <T> T instantiate(java.lang.Class<T>);
    descriptor: (Ljava/lang/Class;)Ljava/lang/Object;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=3, args_size=1
        start local 0 // java.lang.Class clazz
         0: .line 185
            aload 0 /* clazz */
            ldc "No class provided"
            invokestatic java.util.Objects.requireNonNull:(Ljava/lang/Object;Ljava/lang/String;)Ljava/lang/Object;
            pop
         1: .line 186
            aload 0 /* clazz */
            invokestatic org.apache.logging.log4j.core.util.ReflectionUtil.getDefaultConstructor:(Ljava/lang/Class;)Ljava/lang/reflect/Constructor;
            astore 1 /* constructor */
        start local 1 // java.lang.reflect.Constructor constructor
         2: .line 188
            aload 1 /* constructor */
            iconst_0
            anewarray java.lang.Object
            invokevirtual java.lang.reflect.Constructor.newInstance:([Ljava/lang/Object;)Ljava/lang/Object;
         3: areturn
         4: .line 189
      StackMap locals: java.lang.Class java.lang.reflect.Constructor
      StackMap stack: java.lang.Throwable
            astore 2 /* e */
        start local 2 // java.lang.Throwable e
         5: .line 192
            new java.lang.IllegalArgumentException
            dup
            aload 2 /* e */
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 2 // java.lang.Throwable e
         6: .line 193
      StackMap locals:
      StackMap stack: java.lang.IllegalAccessException
            astore 2 /* e */
        start local 2 // java.lang.IllegalAccessException e
         7: .line 194
            new java.lang.IllegalStateException
            dup
            aload 2 /* e */
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 2 // java.lang.IllegalAccessException e
         8: .line 195
      StackMap locals:
      StackMap stack: java.lang.reflect.InvocationTargetException
            astore 2 /* e */
        start local 2 // java.lang.reflect.InvocationTargetException e
         9: .line 196
            aload 2 /* e */
            invokevirtual java.lang.reflect.InvocationTargetException.getCause:()Ljava/lang/Throwable;
            invokestatic org.apache.logging.log4j.core.util.Throwables.rethrow:(Ljava/lang/Throwable;)V
        10: .line 197
            new java.lang.InternalError
            dup
            ldc "Unreachable"
            invokespecial java.lang.InternalError.<init>:(Ljava/lang/String;)V
            athrow
        end local 2 // java.lang.reflect.InvocationTargetException e
        end local 1 // java.lang.reflect.Constructor constructor
        end local 0 // java.lang.Class clazz
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0   11     0        clazz  Ljava/lang/Class<TT;>;
            2   11     1  constructor  Ljava/lang/reflect/Constructor<TT;>;
            5    6     2            e  Ljava/lang/Throwable;
            7    8     2            e  Ljava/lang/IllegalAccessException;
            9   11     2            e  Ljava/lang/reflect/InvocationTargetException;
      Exception table:
        from    to  target  type
           2     3       4  Class java.lang.LinkageError
           2     3       4  Class java.lang.InstantiationException
           2     3       6  Class java.lang.IllegalAccessException
           2     3       8  Class java.lang.reflect.InvocationTargetException
    Signature: <T:Ljava/lang/Object;>(Ljava/lang/Class<TT;>;)TT;
    MethodParameters:
       Name  Flags
      clazz  final
}
SourceFile: "ReflectionUtil.java"