johnpoth/jshell-maven-plugin

Maven Plugin for the Java Shell Tool (JShell)

jshell-maven-plugin

Maven Plugin for the Java Shell Tool ( JShell )

Run it

$mvn compile com.github.johnpoth:jshell-maven-plugin:1.4:run
|  Welcome to JShell -- Version 10
|  For an introduction type: /help intro
jshell>

Now you can start using your project’s runtime classpath:

jshell> var foo = new org.apache.camel.component.beanclass.ClassComponent()
foo ==> org.apache.camel.component.beanclass.ClassComponent@4d1b0d2a
jshell>

To you use your project’s test classpath, add -DtestClasspath to the command and make sure you have compiled your test classes:

$mvn test-compile com.github.johnpoth:jshell-maven-plugin:1.4:run

If you notice some resources missing, you may have to invoke the install phase instead:

$mvn install com.github.johnpoth:jshell-maven-plugin:1.4:run -DskipTests

Once you project has been built properly, and you haven’t updated your source files, you can skip the building phase and invoke the plugin directly:

$mvn com.github.johnpoth:jshell-maven-plugin:1.4:run

Options

Name	Description	Default value
class-path	Explicitly set JShell’s class path
module-path	Set JShell’s module path
add-modules	Add modules from JShell’s module path
add-exports	Explicitly add exports
scripts	Add startup scripts to JShell ',' delimited
useProjectClasspath	Use project class path in JShell	True
properties	Configure Java properties
runtimeClasspath	Add ./target/classes in classpath	false
testClasspath	Add ./target/test-classes in classpath	true
options	Add other options to JShell. See docs

Reminder: plugin parameters when passed through the command line should be prefixed with 'jshell.' e.g: mvn com.github.johnpoth:jshell-maven-plugin:1.4:run -Djshell.scripts="script0,script1"

Adding to pom.xml

To use the plugin’s shortened prefix jshell, declare the plugin in your pom.xml

<pluginManagement>
  <plugins>
    <plugin>
      <groupId>com.github.johnpoth</groupId>
      <artifactId>jshell-maven-plugin</artifactId>
      <version>1.4</version>
    </plugin>
  </plugins>
</pluginManagement>

And now you’ll be able to run it by typing mvn jshell:run

$mvn jshell:run
|  Welcome to JShell -- Version 10
|  For an introduction type: /help intro
jshell>

Works on Java 9, 10 and 11+ Enjoy!