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Java Modules and the Java Platform Module System (JPMS) enhance modularity, encapsulation, and maintainability in Java applications. Introduced in Java 9, JPMS allows developers to organize code into well-defined modules with controlled dependencies, which helps mitigate issues like JAR conflicts and improves application performance and security. The chapter covers the structure of modules, the module-info.java descriptor, and various directives such as requires and exports, along with the benefits and limitations of the new system.
Chapter 1312 sections
Java Modules and the Java Platform Module System (JPMS) enhance modularity, encapsulation, and maintainability in Java applications. Introduced in Java 9, JPMS allows developers to organize code into well-defined modules with controlled dependencies, which helps mitigate issues like JAR conflicts and improves application performance and security. The chapter covers the structure of modules, the module-info.java descriptor, and various directives such as requires and exports, along with the benefits and limitations of the new system.
Modules in Java are self-contained units that group packages and resources.
JPMS introduces strong encapsulation and reliable configuration to avoid common dependency issues.
Creating modules involves defining module-info.java files that specify dependencies and which packages to export.
A self-contained unit of code that groups related packages and specifies which packages to export and which modules to require.
A file that acts as a descriptor for Java modules, declaring module dependencies and exports.
Java Platform Module System, introduced in Java 9 to enhance modularity, security, and maintainability of Java applications.
A declaration in module-info.java that specifies dependencies between modules.
A declaration that specifies which packages are made accessible to other modules.
A declaration to open a package for reflection, allowing access to its members at runtime.
Total Questions
2
Estimated Time
4 min
Passing Score
70%
1 more question available