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Jep Java

• Introduction
• Basic Usage
• Variables
• Data types
• Operators
• Functions
• Custom Functions
• BigDecimal
• Modules
• Printing
• FAQ
• Migration
• Version History

Advanced Features

• Manipulating Expressions
• Components
• Configurable Parser
• Serialization
• Threads
• Localization
• Grammar
• Other advanced features
• Use of Design Patterns in Jep

Migration Guide

Migrating from Jep 3.x to Jep 4.x

Java Version

Jep 4.1 requires Java 21 or higher. Update your project's Java version accordingly.

JUnit Migration

Tests have been migrated from JUnit 4 to JUnit Jupiter (JUnit 5/6). Update test dependencies:

// JUnit Jupiter dependencies (Maven)
<dependency>
    <groupId>org.junit.jupiter</groupId>
    <artifactId>junit-jupiter-api</artifactId>
    <version>6.0.3</version>
    <scope>test</scope>
</dependency>
  

Key changes in test code:

• Replace org.junit.Test with org.junit.jupiter.api.Test
• Replace org.junit.Assert with org.junit.jupiter.api.Assertions
• @Before becomes @BeforeEach
• @After becomes @AfterEach

Package Changes

The core API remains largely unchanged. The main breaking changes in Jep 4.1:

• Source and target Java version updated to Java 21
• Various new methods and classes added for lambda support and function descriptions

Migrating from Jep 2.x to Jep 3.x

Jep 3 introduced significant API changes including the component-based architecture. See the Jep 2 Version History for details.