JRE 8 rt.jar is the JAR file for JRE 8 RT (Runtime) libraries. JRE (Java Runtime) 8 is the runtime environment included in JDK 8. JRE 8 rt.jar libraries are divided into 6 packages:

com.* - Internal Oracle and Sun Microsystems libraries
java.* - Standard Java API libraries.
javax.* - Extended Java API libraries.
jdk.* -  JDK supporting libraries.
org.* - Third party libraries.
sun.* - Old libraries developed by Sun Microsystems.

JAR File Information:

Directory of C:\fyicenter\jdk-1.8.0_191\jre\lib
      63,596,151 rt.jar

Here is the list of Java classes of the org.* package in JRE 1.8.0_191 rt.jar. Java source codes are also provided.

⏎ org/omg/DynamicAny/DynAnyFactory.java

package org.omg.DynamicAny;


/**
* org/omg/DynamicAny/DynAnyFactory.java .
* Generated by the IDL-to-Java compiler (portable), version "3.2"
* from c:/re/workspace/8-2-build-windows-amd64-cygwin/jdk8u191/11896/corba/src/share/classes/org/omg/DynamicAny/DynamicAny.idl
* Saturday, October 6, 2018 9:30:41 AM PDT
*/


/**
    * DynAny objects can be created by invoking operations on the DynAnyFactory object.
    * Generally there are only two ways to create a DynAny object:
    * <UL>
    * <LI>invoking an operation on an existing DynAny object
    * <LI>invoking an operation on a DynAnyFactory object
    * </UL>
    * A constructed DynAny object supports operations that enable the creation of new DynAny
    * objects encapsulating access to the value of some constituent.
    * DynAny objects also support the copy operation for creating new DynAny objects.
    * A reference to the DynAnyFactory object is obtained by calling ORB.resolve_initial_references()
    * with the identifier parameter set to the string constant "DynAnyFactory".
    * <P>Dynamic interpretation of an any usually involves creating a DynAny object using create_dyn_any()
    * as the first step. Depending on the type of the any, the resulting DynAny object reference can be narrowed
    * to a DynFixed, DynStruct, DynSequence, DynArray, DynUnion, DynEnum, or DynValue object reference.
    * <P>Dynamic creation of an any involves creating a DynAny object using create_dyn_any_from_type_code(),
    * passing the TypeCode associated with the value to be created. The returned reference is narrowed to one of
    * the complex types, such as DynStruct, if appropriate. Then, the value can be initialized by means of
    * invoking operations on the resulting object. Finally, the to_any operation can be invoked
    * to create an any value from the constructed DynAny.
    */
public interface DynAnyFactory extends DynAnyFactoryOperations, org.omg.CORBA.Object, org.omg.CORBA.portable.IDLEntity 
{
} // interface DynAnyFactory

⏎ org/omg/DynamicAny/DynAnyFactory.java

Or download all of them as a single archive file:

File name: jre-rt-org-1.8.0_191-src.zip
File size: 951125 bytes
Release date: 2018-10-28
Download 

⇒ JRE 8 rt.jar - com.* Package Source Code

⇐ JRE 8 rt.jar - javax.* Package Source Code

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