Module jdk.jshell

Provides the jshell tool for evaluating snippets of Java code, and defines a JDK-specific API for modeling and executing snippets. The JShell API supports Java Programming Language 'snippet' evaluating tools, such as Read-Eval-Print Loops (REPLs). Separate packages support building tools, configuring the execution of tools, and programmatically launching the existing Java shell tool.

The jdk.jshell is the package for creating 'snippet' evaluating tools. Generally, this is only package that would be needed for creating tools.

The jdk.jshell.spi package specifies a Service Provider Interface (SPI) for defining execution engine implementations for tools based on the jdk.jshell API. The jdk.jshell.execution package provides standard implementations of jdk.jshell.spi interfaces and supporting code. It also serves as a library of functionality for defining new execution engine implementations.

The jdk.jshell.tool package supports programmatically launching the jshell tool.

The jdk.jshell.execution package contains implementations of the interfaces in jdk.jshell.spi. Otherwise, the four packages are independent, operate at different levels, and do not share functionality or definitions.

Tool Guides:

jshell

Since:

9

Packages

Exports

Package	Description
jdk.jshell	Provides interfaces for creating tools, such as a Read-Eval-Print Loop (REPL), which interactively evaluate "snippets" of Java programming language code.
jdk.jshell.execution	Provides implementation support for building JShell execution engines.
jdk.jshell.spi	Defines the Service Provider Interface for pluggable JShell execution engines.
jdk.jshell.tool	Provides a mechanism to launch an instance of a Java™ shell tool.

Indirect Exports

From	Packages
java.compiler	javax.annotation.processing javax.lang.model javax.lang.model.element javax.lang.model.type javax.lang.model.util javax.tools
java.prefs	java.util.prefs
jdk.jdi	com.sun.jdi com.sun.jdi.connect com.sun.jdi.connect.spi com.sun.jdi.event com.sun.jdi.request

Modules

Requires

Modifier	Module	Description
transitive	java.compiler	Defines the Language Model, Annotation Processing, and Java Compiler APIs.
transitive	java.prefs	Defines the Preferences API.
transitive	jdk.jdi	Defines the Java Debug Interface.

Services

Provides

Type	Description
ExecutionControlProvider
Tool

Uses

Type	Description
ExecutionControlProvider	The provider used by JShell to generate the execution engine needed to evaluate Snippets.