https://github.com/eclipse/eclipse-collections/eclipse-collections: Eclipse Collections is a collections framework for Java. It has JDK-compatible List, Set and Map implementations with a rich API and set of utility classes that work with any JDK compatible Collections, Arrays, Maps or Strings. The iteration protocol was inspired by the Smalltalk collection framework.
  • Craig P. Motlin
  • Donald Raab
  • Mohammad A. Rezaei
  • Hiroshi Ito
  • Nikhil J. Nanivadekar 
public final class org.eclipse.collections.impl.block.procedure.SelectInstancesOfProcedure<T> implements org.eclipse.collections.api.block.procedure.Procedure<java.lang.Object>
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.eclipse.collections.impl.block.procedure.SelectInstancesOfProcedure
  super_class: java.lang.Object
{
  private static final long serialVersionUID;
    descriptor: J
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 1

  private final java.lang.Class<T> clazz;
    descriptor: Ljava/lang/Class;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/lang/Class<TT;>;

  private final java.util.Collection<T> collection;
    descriptor: Ljava/util/Collection;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/Collection<TT;>;

  public void <init>(java.lang.Class<T>, java.util.Collection<T>);
    descriptor: (Ljava/lang/Class;Ljava/util/Collection;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.eclipse.collections.impl.block.procedure.SelectInstancesOfProcedure this
        start local 1 // java.lang.Class clazz
        start local 2 // java.util.Collection targetCollection
         0: .line 29
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 31
            aload 0 /* this */
            aload 1 /* clazz */
            putfield org.eclipse.collections.impl.block.procedure.SelectInstancesOfProcedure.clazz:Ljava/lang/Class;
         2: .line 32
            aload 0 /* this */
            aload 2 /* targetCollection */
            putfield org.eclipse.collections.impl.block.procedure.SelectInstancesOfProcedure.collection:Ljava/util/Collection;
         3: .line 33
            return
        end local 2 // java.util.Collection targetCollection
        end local 1 // java.lang.Class clazz
        end local 0 // org.eclipse.collections.impl.block.procedure.SelectInstancesOfProcedure this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    4     0              this  Lorg/eclipse/collections/impl/block/procedure/SelectInstancesOfProcedure<TT;>;
            0    4     1             clazz  Ljava/lang/Class<TT;>;
            0    4     2  targetCollection  Ljava/util/Collection<TT;>;
    Signature: (Ljava/lang/Class<TT;>;Ljava/util/Collection<TT;>;)V
    MethodParameters:
                  Name  Flags
      clazz             
      targetCollection  

  public void value(java.lang.Object);
    descriptor: (Ljava/lang/Object;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.eclipse.collections.impl.block.procedure.SelectInstancesOfProcedure this
        start local 1 // java.lang.Object object
         0: .line 38
            aload 0 /* this */
            getfield org.eclipse.collections.impl.block.procedure.SelectInstancesOfProcedure.clazz:Ljava/lang/Class;
            aload 1 /* object */
            invokevirtual java.lang.Class.isInstance:(Ljava/lang/Object;)Z
            ifeq 2
         1: .line 40
            aload 0 /* this */
            getfield org.eclipse.collections.impl.block.procedure.SelectInstancesOfProcedure.collection:Ljava/util/Collection;
            aload 1 /* object */
            invokeinterface java.util.Collection.add:(Ljava/lang/Object;)Z
            pop
         2: .line 42
      StackMap locals:
      StackMap stack:
            return
        end local 1 // java.lang.Object object
        end local 0 // org.eclipse.collections.impl.block.procedure.SelectInstancesOfProcedure this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Lorg/eclipse/collections/impl/block/procedure/SelectInstancesOfProcedure<TT;>;
            0    3     1  object  Ljava/lang/Object;
    MethodParameters:
        Name  Flags
      object  

  public java.util.Collection<T> getCollection();
    descriptor: ()Ljava/util/Collection;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.block.procedure.SelectInstancesOfProcedure this
         0: .line 46
            aload 0 /* this */
            getfield org.eclipse.collections.impl.block.procedure.SelectInstancesOfProcedure.collection:Ljava/util/Collection;
            areturn
        end local 0 // org.eclipse.collections.impl.block.procedure.SelectInstancesOfProcedure this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/eclipse/collections/impl/block/procedure/SelectInstancesOfProcedure<TT;>;
    Signature: ()Ljava/util/Collection<TT;>;
}
Signature: <T:Ljava/lang/Object;>Ljava/lang/Object;Lorg/eclipse/collections/api/block/procedure/Procedure<Ljava/lang/Object;>;
SourceFile: "SelectInstancesOfProcedure.java"