Statements (799)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:Java_2_Platform
|
| gptkbp:addresses |
memory allocation
Performance issues with previous pipelines. |
| gptkbp:adoption_in_academia |
Taught in Java courses.
|
| gptkbp:adoption_in_industry |
Adopted by major Java frameworks.
|
| gptkbp:affects |
Java developers
|
| gptkbp:aims_to |
simplify type checks
improve developer productivity improve observability of Java applications Control which classes can extend or implement a class or interface. Replace deprecated Open GL support. |
| gptkbp:aims_to_improve |
gptkb:Z_Garbage_Collector
|
| gptkbp:allows |
conditional execution based on type
|
| gptkbp:approves |
March 2021
|
| gptkbp:author |
gptkb:Brian_Goetz
gptkb:J._B._Rainsberger JDK Release Team |
| gptkbp:benefits |
Improves type safety.
Enhanced control over class hierarchies Supports pattern matching. Facilitates better API design. Reduces the risk of unintended subclassing. Enables pattern matching for sealed types. Facilitates better code organization. Encourages a more declarative style of programming. Improved performance and efficiency for Java applications on mac OS. Enables more expressive code. Provides better control over class hierarchies. Encourages better API design. May introduce complexity in type hierarchies. |
| gptkbp:best_practices_for_usage |
Use in API design.
|
| gptkbp:can_be_extended_by |
future JEPs
|
| gptkbp:challenges |
Balancing flexibility and control.
May introduce complexity in understanding class hierarchies. Requires changes in existing codebases. |
| gptkbp:collaborated_with |
gptkb:academic_research
Open Source Projects Industry Partners open-source projects industry consortia Java development teams By Apple and Open JDK contributors. By Java and Apple engineers. |
| gptkbp:collaboration |
Facilitates collaboration among developers.
|
| gptkbp:community_engagement |
Active discussions in forums.
Hackathons and coding challenges. Active engagement with Java user groups. |
| gptkbp:community_events |
Workshops and meetups discussing sealed classes.
|
| gptkbp:community_feedback |
Positive feedback from developers.
Positive response from developers. Positive reception from the Java community. Surveys and polls. Incorporated into future revisions. Gathered from various Java user groups. |
| gptkbp:community_involvement |
Encouraged for feedback.
Involvement from various stakeholders. |
| gptkbp:community_support |
Active community discussions.
Strong support from the Java community. Slack channels and forums. Strong backing from Java developers. |
| gptkbp:compatibility |
Backward compatible with existing Java code.
|
| gptkbp:conducts_research_on |
Java programming studies
|
| gptkbp:conformance |
Conforms to Java language specifications.
Conforms to the Java Language Specification. Requires explicit declaration of permitted subclasses. Allows final subclasses. Allows for nested sealed classes. Allows for sealed types in annotations. Allows for sealed types in deserialization. Allows for sealed types in lambda expressions. Allows for sealed types in method handles. Allows for sealed types in method references. Allows for sealed types in modules. Allows for sealed types in reflection. Allows for sealed types in type annotations. Allows for sealed types in type patterns. Cannot be subclassed outside of permitted classes. Must declare permitted subclasses. Supports sealed interfaces with non-sealed implementations. Supports non-sealed subclasses. Supports sealed types in annotations. Supports sealed types in dynamic proxies. Supports sealed types in functional interfaces. Supports sealed types in generics. Supports sealed types in modules. Supports sealed types in records. Supports sealed types in serialization. Supports sealed types in switch expressions. Supports sealed types in type erasure. Supports sealed types in type inference. |
| gptkbp:contains |
API changes
security updates release milestones |
| gptkbp:contributes_to |
Java's type system
observability in cloud environments Java graphics stack. |
| gptkbp:contribution |
Contributed to the evolution of Java.
Enhances type safety. Open for community contributions. Enhances the expressiveness of the Java type system. Contributed by multiple Java developers. |
| gptkbp:describes |
gptkb:JFR_Event_Streaming
JDK 15 Release Notes JDK 17 Release Schedule |
| gptkbp:description |
Introduces sealed classes and interfaces to restrict which classes can extend or implement them.
Introduces sealed classes and interfaces. A new rendering pipeline for mac OS using Apple's Metal framework. Introduces sealed types to restrict which classes can extend or implement them. |
| gptkbp:design |
Encapsulation and control.
Encapsulation and abstraction. |
| gptkbp:development |
Scheduled for JDK 17.
|
| gptkbp:development_tools |
Encourages development of new tools.
Tools evolve to support sealed classes. Tools support sealed classes. |
| gptkbp:discusses |
Open JDK mailing list.
https://openjdk.java.net/jeps/360 Ongoing discussions in the Java community. |
| gptkbp:education |
Growing user base.
Gradually increasing. |
| gptkbp:educational_resources |
Available tutorials and documentation.
|
| gptkbp:educational_value |
Increased interest in Java language features.
|
| gptkbp:enables |
event-driven architectures
event filtering and aggregation More expressive type hierarchies. |
| gptkbp:encourages |
Adoption of Metal by developers.
|
| gptkbp:end_date |
Expected in future JDK releases
|
| gptkbp:enhances |
performance monitoring
type inference Planned based on user input. concurrent memory management Potential for more sealed features. Visual quality of applications. |
| gptkbp:error_handling |
Improved error handling with sealed types.
|
| gptkbp:evaluates |
Usability and performance.
Based on developer satisfaction. Based on usability and performance. Ongoing evaluation by the JEP committee. |
| gptkbp:example |
Sealed class example in Java.
Sealed classes can be used in pattern matching. Defining a sealed class hierarchy for shapes. Defining a sealed interface for event listeners. sealed class Shape permits Circle and Square. sealed interface Event Listener permits Mouse Listener and Key Listener. sealed class Shape permits Circle, Square. Defining a sealed class with permitted subclasses. Used in defining a restricted class hierarchy. sealed class Shape with permitted subclasses Circle and Square. Used in frameworks to enforce specific class structures. Sealed class with non-sealed subclasses. Allows defining a sealed class with permitted subclasses. |
| gptkbp:facilitates |
integration with external monitoring tools
Better API design Modern graphics techniques. |
| gptkbp:features |
Pattern matching for instanceof.
|
| gptkbp:feedback |
Positive feedback from early adopters.
|
| gptkbp:feedback_mechanism |
Surveys and discussions.
Open JDK mailing lists. |
| gptkbp:first_preview |
gptkb:JDK_17
gptkb:JDK_16 |
| gptkbp:focus |
gptkb:Garbage_Collection
|
| gptkbp:focuses_on |
Java language enhancements
|
| gptkbp:formulation |
Uses the 'sealed' keyword.
Introduces new keywords 'sealed', 'non-sealed', and 'permits'. |
| gptkbp:future_goals |
Enhance type safety and usability.
|
| gptkbp:future_plans |
Further refinements based on user feedback.
Further enhancements in future JDKs. |
| gptkbp:future_prospects |
Further enhancements to sealed types.
Potential enhancements to sealed types. Evaluate performance implications. Gather community feedback. Consider integration with records. Explore further enhancements to sealed types. Refine documentation. Research on sealed types. |
| gptkbp:future_trends_in_java |
Increased focus on type safety.
|
| gptkbp:goals |
Enhance type safety.
|
| gptkbp:has_documentation |
Official JDK documentation.
Detailed in the official JEP documentation. |
| gptkbp:has_impact_on |
Software development practices.
|
| gptkbp:has_limitations |
Cannot extend sealed classes outside the defined hierarchy.
Cannot extend sealed classes outside permitted subclasses. |
| https://www.w3.org/2000/01/rdf-schema#label |
JEP 360
|
| gptkbp:impact |
Improves type safety.
Affects how developers design class hierarchies. Improves the expressiveness of the type system. Improves maintainability and readability of code. Improves maintainability and security of code. Enhances graphics rendering capabilities. Enhances pattern matching and type checking. |
| gptkbp:impact_on_agile_practices |
Supports agile methodologies.
|
| gptkbp:impact_on_code_maintenance |
Simplifies maintenance.
|
| gptkbp:impact_on_code_readability |
Increases readability.
|
| gptkbp:impact_on_codebase |
Encourages cleaner code.
|
| gptkbp:impact_on_codebases |
Encourages cleaner code.
|
| gptkbp:impact_on_continuous_integration |
Enhances CI/ CD processes.
|
| gptkbp:impact_on_dev_ops |
Integrates well with Dev Ops practices.
|
| gptkbp:impact_on_development_practices |
Encourages best practices.
|
| gptkbp:impact_on_java_community |
Fosters innovation.
|
| gptkbp:impact_on_java_ecosystem |
Strengthens Java's type system.
|
| gptkbp:impact_on_legacy_code |
Encourages refactoring.
|
| gptkbp:impact_on_open_source |
Used in open-source projects.
|
| gptkbp:impact_on_programming_paradigms |
Supports object-oriented programming.
|
| gptkbp:impact_on_software_architecture |
Encourages modular architecture.
|
| gptkbp:impact_on_software_collaboration |
Enhances collaboration among teams.
|
| gptkbp:impact_on_software_deployment |
Simplifies deployment.
|
| gptkbp:impact_on_software_development |
Facilitates better design patterns.
|
| gptkbp:impact_on_software_development_challenges |
Addresses challenges in development.
|
| gptkbp:impact_on_software_development_collaboration |
Enhances collaboration among teams.
|
| gptkbp:impact_on_software_development_culture |
Fosters a culture of innovation.
Promotes a culture of quality. |
| gptkbp:impact_on_software_development_documentation |
Encourages better documentation practices.
|
| gptkbp:impact_on_software_development_effectiveness |
Increases effectiveness of development efforts.
|
| gptkbp:impact_on_software_development_efficiency |
Improves efficiency in development.
|
| gptkbp:impact_on_software_development_frameworks |
Frameworks adapt to sealed classes.
|
| gptkbp:impact_on_software_development_libraries |
Libraries utilize sealed classes.
|
| gptkbp:impact_on_software_development_life_cycle |
Affects the entire software development lifecycle.
|
| gptkbp:impact_on_software_development_life_cycle_management |
Affects lifecycle management practices.
|
| gptkbp:impact_on_software_development_maintenance |
Facilitates easier maintenance.
|
| gptkbp:impact_on_software_development_methodologies |
Influences methodologies used in development.
|
| gptkbp:impact_on_software_development_opportunities |
Creates new opportunities in development.
|
| gptkbp:impact_on_software_development_outcomes |
Leads to better outcomes in development.
|
| gptkbp:impact_on_software_development_practices |
Encourages modern practices.
Promotes best practices in software development. |
| gptkbp:impact_on_software_development_processes |
Streamlines development processes.
|
| gptkbp:impact_on_software_development_quality |
Enhances quality of software development.
|
| gptkbp:impact_on_software_development_quality_assurance |
Enhances QA processes.
|
| gptkbp:impact_on_software_development_risks |
Mitigates risks in development.
|
| gptkbp:impact_on_software_development_standards |
Establishes new standards.
|
| gptkbp:impact_on_software_development_strategies |
Influences strategies used in development.
|
| gptkbp:impact_on_software_development_success |
Contributes to success in software projects.
|
| gptkbp:impact_on_software_development_testing |
Improves testing methodologies.
|
| gptkbp:impact_on_software_development_trends |
Sets trends in software development.
|
| gptkbp:impact_on_software_documentation |
Encourages better documentation practices.
|
| gptkbp:impact_on_software_engineering |
Promotes better software design.
|
| gptkbp:impact_on_software_frameworks |
Frameworks adapt to sealed classes.
|
| gptkbp:impact_on_software_innovation |
Drives innovation in software development.
|
| gptkbp:impact_on_software_libraries |
Libraries utilize sealed classes.
|
| gptkbp:impact_on_software_lifecycle |
Affects software lifecycle management.
|
| gptkbp:impact_on_software_maintenance |
Facilitates easier maintenance.
|
| gptkbp:impact_on_software_practices |
Promotes best practices in software development.
|
| gptkbp:impact_on_software_quality |
Enhances overall software quality.
|
| gptkbp:impact_on_software_quality_assurance |
Enhances QA processes.
|
| gptkbp:impact_on_software_standards |
Sets new standards in Java.
|
| gptkbp:impact_on_software_testing |
Improves testing methodologies.
|
| gptkbp:impact_on_software_tools |
Encourages development of new tools.
|
| gptkbp:impact_on_software_trends |
Influences software development trends.
|
| gptkbp:impact_on_testing |
Improves testing strategies.
|
| gptkbp:impact_on_user_experience |
Improves user experience.
|
| gptkbp:improves |
code readability
throughput Code maintainability application responsiveness diagnostics capabilities Rendering speed. |
| gptkbp:includes |
bug fixes
performance improvements new features concurrent marking concurrent relocation Support for advanced rendering techniques. |
| gptkbp:influences |
gptkb:Java_Language_Specification
|
| gptkbp:introduced_in |
gptkb:Java_14
gptkb:Java_16 gptkb:JDK_15 gptkb:Java_17 |
| gptkbp:involved_technology |
Java programming language.
Java SE. Java Modules. |
| gptkbp:is_a_framework_for |
Frameworks leverage sealed classes.
|
| gptkbp:is_a_resource_for |
Available for developers.
Git Hub repositories with examples. |
| gptkbp:is_a_subject_of |
Java enhancement proposals
|
| gptkbp:is_adopted_by |
Enterprise Applications
Startups enterprise applications software companies startups Java Developers Java developers Widely adopted in modern Java applications. Java user community Gradual adoption in projects. High among Java developers. Increasing among Java developers. Java developers on mac OS. Java developers. Java frameworks. Learning curve for new syntax. Open-source projects. Widely adopted in Java SE 17. Java enterprises. Java startups. mac OS developers. Adopted by several Java libraries. |
| gptkbp:is_aligned_with |
gptkb:Java_SE_16
industry standards Apple's graphics strategy. |
| gptkbp:is_analyzed_in |
Code Reviews
Performance Benchmarks Java performance studies. Java design patterns. Software architecture reviews. Software engineering studies. |
| gptkbp:is_beneficial_for |
Real-Time Systems
High-Performance Applications |
| gptkbp:is_celebrated_in |
gptkb:Java_conferences
|
| gptkbp:is_cited_in |
Java research papers.
Java SE 17 specifications Java programming research papers |
| gptkbp:is_compared_to |
Similar to sealed types in other languages.
Java 14 features. Java 16 features. Other language features. Other programming languages. Similar to interfaces but with more control. Compared to traditional inheritance. |
| gptkbp:is_compatible_with |
gptkb:Java_SE_14
Java Applications Latest mac OS versions. Metal 2 and later. |
| gptkbp:is_considered |
future JDK releases
|
| gptkbp:is_described_as |
tutorials
Developer Guides Technical Articles technical articles Technical blogs. |
| gptkbp:is_designed_to |
September 2021
|
| gptkbp:is_discussed_in |
gptkb:Java_Community_Process
gptkb:Java_2_Platform Online Forums meetups online courses Java Conferences technical blogs Technical blogs. Java conferences. Java forums Java forums. Java podcasts Java events Java user groups. Java podcasts. Java webinars. |
| gptkbp:is_documented_in |
gptkb:JEP
release notes technical specifications user manuals JEP Index Java Documentation JDK documentation Open JDK documentation Open JDK website official JDK documentation Official Java documentation. Open JDK documentation. |
| gptkbp:is_evaluated_by |
Performance Metrics
Quality Assurance Teams technical committees industry analysts peer reviews Java experts software architects Java certification programs Java assessments. Java code reviews. Java performance metrics Java experts. |
| gptkbp:is_expected_to |
enhance performance
Enhance user experience. Set a standard for future graphics pipelines. |
| gptkbp:is_explored_in |
research papers
case studies Java workshops. Java meetups. Java hackathons. Java online courses. |
| gptkbp:is_implemented_in |
gptkb:JDK_17
gptkb:Java_Virtual_Machine gptkb:Java_FX gptkb:ZGC gptkb:Java_Development_Kit_(JDK) gptkb:Open_JDK Implemented in the Java language. In progress. Under development. Completed. Java programming language. Code examples provided. Ensuring backward compatibility. Implemented in the Java language and the Java Virtual Machine. Part of the Java language specification Part of the Java language. Addressing edge cases. Requires changes to the Java compiler. Part of the Java SE 17 release. Java compiler. Detailed in the JEP document. Ensuring compatibility with existing features. Requires compiler updates. Requires updates to the Java compiler. |
| gptkbp:is_influenced_by |
user feedback
community feedback User feedback. Functional programming concepts. Graphics performance trends. Previous JEPs |
| gptkbp:is_influential_in |
Java Development
Software Engineering Practices Java development practices |
| gptkbp:is_integrated_with |
gptkb:cloud_services
data analytics tools monitoring dashboards CI/ CD pipelines |
| gptkbp:is_linked_to |
gptkb:Java_SE_19
gptkb:Java_SE_18 |
| gptkbp:is_motivated_by |
Improve the modeling of hierarchies in Java.
To provide a more declarative way than access modifiers to restrict class hierarchies. Improve the modeling of hierarchies. Enhance the expressiveness of the type system. Improve the expressiveness of the type system. Enhance the Java programming language with more control over class hierarchies. |
| gptkbp:is_optimized_for |
Large Heap Sizes
High-resolution displays. Apple silicon. |
| gptkbp:is_part_of |
gptkb:Java_SE_Platform
gptkb:Java_2_Platform gptkb:Java_SE_15 Java Ecosystem Java 15 Features Java SE 17. Java SE platform. Java language evolution. Java Development Lifecycle Java 14 release |
| gptkbp:is_practiced_in |
Use sealed classes for defining clear APIs.
|
| gptkbp:is_promoted_by |
gptkb:Java_User_Groups
gptkb:Oracle_Corporation influencers Java user groups Java advocates Java advocates. Java community. Java conferences. Java influencers Java Advocates Java influencers. Java newsletters. Java user groups. |
| gptkbp:is_promoted_through |
social media campaigns
webinars Java meetups |
| gptkbp:is_recognized_by |
industry standards
Java community leaders |
| gptkbp:is_referenced_in |
gptkb:Documentation
Research Papers API documentation developer guides Java specifications Java textbooks white papers Java blogs. Java documentation. Java forums. Java tutorials. other JEPs |
| gptkbp:is_related_to |
gptkb:JEP_411
gptkb:JEP_377 gptkb:JEP_384 gptkb:JEP_386 gptkb:JEP_387 gptkb:JEP_388 gptkb:JEP_389 gptkb:JEP_390 gptkb:JEP_391 gptkb:JEP_392 gptkb:JEP_393 gptkb:JEP_394 gptkb:JEP_395 gptkb:JEP_396 gptkb:JEP_397 gptkb:JEP_398 gptkb:JEP_399 gptkb:JEP_400 gptkb:JEP_401 gptkb:JEP_402 gptkb:JEP_403 gptkb:JEP_404 gptkb:JEP_405 gptkb:JEP_406 gptkb:JEP_407 gptkb:JEP_408 gptkb:JEP_409 gptkb:JEP_410 gptkb:JEP_412 gptkb:JEP_413 gptkb:JEP_414 gptkb:JEP_415 gptkb:JEP_416 gptkb:JEP_417 gptkb:JEP_418 gptkb:JEP_419 gptkb:JEP_420 gptkb:JEP_421 gptkb:JEP_422 gptkb:JEP_423 gptkb:JEP_424 gptkb:JEP_425 gptkb:JEP_426 gptkb:JEP_427 gptkb:JEP_428 gptkb:JEP_429 gptkb:JEP_430 gptkb:JEP_431 gptkb:JEP_432 gptkb:JEP_433 gptkb:JEP_434 gptkb:JEP_435 gptkb:JEP_436 gptkb:JEP_437 gptkb:JEP_438 gptkb:JEP_439 gptkb:JEP_440 gptkb:JEP_441 gptkb:JEP_442 gptkb:JEP_443 gptkb:JEP_444 gptkb:JEP_445 gptkb:JEP_446 gptkb:JEP_447 gptkb:JEP_448 gptkb:JEP_449 gptkb:JEP_450 gptkb:JEP_451 gptkb:JEP_452 gptkb:JEP_453 gptkb:JEP_454 gptkb:JEP_455 gptkb:JEP_456 gptkb:JEP_457 gptkb:JEP_458 gptkb:JEP_459 gptkb:JEP_460 gptkb:JEP_461 gptkb:JEP_462 gptkb:JEP_463 gptkb:JEP_464 gptkb:JEP_465 gptkb:JEP_466 gptkb:JEP_467 gptkb:JEP_468 gptkb:JEP_469 gptkb:JEP_470 gptkb:JEP_471 gptkb:JEP_472 gptkb:JEP_473 gptkb:JEP_474 gptkb:JEP_475 gptkb:JEP_476 gptkb:JEP_477 gptkb:JEP_478 gptkb:JEP_479 gptkb:JEP_480 gptkb:JEP_481 gptkb:JEP_482 gptkb:JEP_483 gptkb:JEP_484 gptkb:JEP_485 gptkb:JEP_486 gptkb:JEP_487 gptkb:JEP_488 gptkb:JEP_489 gptkb:JEP_490 gptkb:JEP_491 gptkb:JEP_492 gptkb:JEP_493 gptkb:JEP_494 gptkb:JEP_495 gptkb:JEP_496 gptkb:JEP_497 gptkb:JEP_498 gptkb:JEP_499 gptkb:JEP_500 Garbage Collection Tuning JEP 411: Deprecate the Security Manager. JEP 409: Sealed Interfaces. JEP 383. |
| gptkbp:is_reviewed_by |
gptkb:Open_JDK_community
gptkb:Java_Community_Process gptkb:Advisory_Services Approved Java Community Technical meetings. Java community. Java conferences. Open JDK mailing lists |
| gptkbp:is_supported_by |
gptkb:Java_Development_Kit_(JDK)
gptkb:Java_community gptkb:Open_JDK Community Contributions User Feedback community contributions community forums user documentation training materials Java IDEs Java user groups open-source libraries vendor support Java Development Kit (JDK). Java community. Java libraries. Java 15. Java tools. Java FX 17. Java 17 and later. Java IDEs. |
| gptkbp:is_targeted_at |
Java developers
|
| gptkbp:is_tested_for |
gptkb:Continuous_Integration
Java applications production environments load testing tools Java testing frameworks. Java Testing Frameworks QA environments Extensively tested in the JDK. Java FX applications. Metal framework. |
| gptkbp:is_updated_by |
subsequent JEPs
|
| gptkbp:is_used_in |
production systems
Enterprise applications. |
| gptkbp:is_utilized_by |
system administrators
Dev Ops teams |
| gptkbp:is_utilized_for |
root cause analysis
capacity planning performance tuning system diagnostics application performance management service level monitoring |
| gptkbp:is_utilized_in |
gptkb:Microservices
gptkb:cloud_computing Java applications cloud computing solutions Cross-platform applications. Graphics-intensive applications. |
| gptkbp:key_feature |
gptkb:Sealed_classes
Sealed classes and interfaces Sealed interfaces Permits subclasses to be defined in the same package or module. Allows for more expressive type hierarchies. Permits subclasses to be defined only in the same package or module. Enhances pattern matching. Permits and non-permits for subclasses Allows class authors to control the inheritance hierarchy. |
| gptkbp:language |
Type system enhancement.
|
| gptkbp:latest_version |
17.0.0
JDK 17 and later. 1.0 (Preview) |
| gptkbp:library |
Encourages library authors to use sealed types.
|
| gptkbp:link |
https://openjdk.java.net/jeps/360
|
| gptkbp:notable_production |
Streamlines class design.
|
| gptkbp:notable_release |
January 2021
|
| gptkbp:operates_in |
September 2029
|
| gptkbp:part_of |
gptkb:Java_SE_17
|
| gptkbp:performance |
Minimal impact on performance.
Minimal performance overhead. other monitoring solutions No significant impact. |
| gptkbp:presented_by |
gptkb:Java_conferences
|
| gptkbp:product_quality |
Improves code quality.
|
| gptkbp:project |
Java SE 17.
|
| gptkbp:proposed_by |
gptkb:JDK_17
gptkb:Pattern_Matching_for_instanceof gptkb:Oracle gptkb:Oracle_Corporation gptkb:James_Gosling gptkb:Apple gptkb:JDK_15 gptkb:JDK_16 gptkb:Javac_Team March 2020 JDK Enhancement-Proposal Committee streaming of Java Flight Recorder events |
| gptkbp:provides |
release notes
better performance enhanced language features API for event streaming Better integration with mac OS features. |
| gptkbp:published_by |
Open JDK mailing lists.
Java community newsletters. |
| gptkbp:published_in |
September 2020
|
| gptkbp:real_world_examples |
Used in enterprise applications.
|
| gptkbp:reduces |
boilerplate code
pause times |
| gptkbp:related_concept |
gptkb:Inheritance
Interfaces Polymorphism Pattern Matching Pattern matching Type safety Abstract classes Software maintainability API design principles Java Language Specification. Java SE specifications. Java language enhancements Java SE 17 features Code security |
| gptkbp:related_jeps |
gptkb:JEP_411
gptkb:JEP_384 gptkb:JEP_390 gptkb:JEP_394 gptkb:JEP_395 gptkb:JEP_396 gptkb:JEP_397 gptkb:JEP_398 gptkb:JEP_399 gptkb:JEP_181 gptkb:JEP_400 gptkb:JEP_401 gptkb:JEP_402 gptkb:JEP_403 gptkb:JEP_404 gptkb:JEP_405 gptkb:JEP_406 gptkb:JEP_407 gptkb:JEP_408 gptkb:JEP_409 JEP 1100 JEP 409. |
| gptkbp:related_to |
gptkb:JEP_382
gptkb:Java_SE_Platform gptkb:Java_Flight_Recorder gptkb:Garbage_Collection Pattern Matching Metal API instanceof operator |
| gptkbp:release_date |
September 2020
September 2021 Expected in JDK 17. |
| gptkbp:released |
gptkb:JDK_17
gptkb:Java_SE_17 |
| gptkbp:released_in |
Java 17 release notes.
Java 17 launch events. |
| gptkbp:replaces |
Existing Open GL pipeline
|
| gptkbp:requires |
mac OS 10.14 or later
JDK 14 or later JDK 15 or later |
| gptkbp:reviews |
gptkb:Brian_Goetz
gptkb:Venkat_Subramaniam gptkb:Shenandoah gptkb:Mark_Reinhold gptkb:Jesse_Glick Community review and feedback. JDK Committers Various members of the Java community Various members of the Open JDK community. Various members of the Java community. |
| gptkbp:security |
Enhances security by limiting subclassing.
|
| gptkbp:specification |
Java Language Specification.
Defines how sealed classes and interfaces behave. |
| gptkbp:status |
gptkb:Final
gptkb:Preview Standard Feature |
| gptkbp:success |
Documented use cases.
Community support and feedback. Community engagement and feedback. |
| gptkbp:success_rate |
Measured by adoption and usage.
Adoption rate and community feedback. |
| gptkbp:supports |
real-time event analysis
High-performance graphics applications. |
| gptkbp:target_jdk |
gptkb:JDK_17
gptkb:JDK_15 |
| gptkbp:title |
gptkb:Sealed_Classes
gptkb:New_mac_OS_Rendering_Pipeline Sealed Classes (Preview) Sealed Types Sealed Classes and Interfaces ZGC: Concurrent Memory Management Modifications Sealed Types (Preview) |
| gptkbp:trends |
Increased use of sealed types in Java.
|
| gptkbp:tutorials |
Available online.
|
| gptkbp:usage |
Used to define a restricted class hierarchy.
Used in defining APIs that require strict control over inheritance. |
| gptkbp:usage_restrictions |
Only permitted subclasses can extend sealed classes.
|
| gptkbp:use_case |
Frameworks and libraries.
Frameworks and libraries requiring strict type hierarchies. Frameworks requiring strict type hierarchies. |
| gptkbp:user_experience |
Improved user experience in type management.
|
| gptkbp:user_feedback |
Generally positive.
Collected from early adopters. |
| gptkbp:user_manual |
Comprehensive user guides available.
|
| gptkbp:user_resources |
Tutorials and documentation available.
|
| gptkbp:vision |
Integrate with future Java features.
|
| gptkbp:bfsParent |
gptkb:JEP_389
gptkb:JEP_33 gptkb:JDK_10 gptkb:JDK_14 gptkb:Java_10 |
| gptkbp:bfsLayer |
5
|