Statements (645)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:API
gptkb:Java_Enhancement_Proposal |
| gptkbp:addresses |
performance bottlenecks
pattern matching issues |
| gptkbp:adds |
New warnings
new command-line options |
| gptkbp:affects |
Java Developers
Java developers |
| gptkbp:aims_to |
gptkb:benchmark
gptkb:language visual quality enhance type hierarchies Simplify code with pattern matching simplify the command-line tools control the inheritance of classes |
| gptkbp:allows |
control over which classes can implement an interface
classes to specify which classes can extend them |
| gptkbp:amended_by |
Syntax rules
|
| gptkbp:applies_to |
gptkb:software_framework
|
| gptkbp:approves |
March 2021
September 2021 JDK Project Lead JDK Release Team |
| gptkbp:author |
gptkb:Brian_Goetz
|
| gptkbp:benefits |
Improves overall system performance.
Improves code organization. mac OS developers Improved code clarity. Improved performance on mac OS. Enhances code readability. Improved type safety. Improves maintainability of code. Provides better control over the API surface. Reduces the risk of unintended subclassing. Allows for more predictable behavior. Encourages better design practices. Encourages the use of abstract classes. Encourages the use of agile methodologies. Encourages the use of automated testing. Encourages the use of best practices. Encourages the use of clean code principles. Encourages the use of continuous integration. Encourages the use of design by contract. Encourages the use of design patterns. Encourages the use of documentation. Encourages the use of interfaces. Encourages the use of metrics. Encourages the use of microservices. Encourages the use of modular programming. Encourages the use of open-source libraries. Encourages the use of sealed hierarchies. Encourages the use of user feedback. Enhances maintainability of code. Facilitates better code reuse. Facilitates better code reviews. Facilitates better collaboration among developers. Facilitates better error handling. Facilitates better knowledge sharing. Facilitates better resource management. Facilitates better risk management. Facilitates better user experience. Facilitates clearer API contracts. Facilitates code reviews. Improves documentation clarity. Improves maintainability of legacy code. Improves overall developer productivity. Improves overall project success. Improves overall project visibility. Improves overall software architecture. Improves overall software quality. Improves performance in certain scenarios. Promotes better encapsulation. Promotes the use of composition over inheritance. Promotes the use of final classes. Simplifies reasoning about code. Supports better cloud integration. Supports better code analysis. Supports better code generation. Supports better community engagement. Supports better compliance. Supports better data management. Supports better debugging. Supports better performance optimization. Supports better project management. Supports better scalability. Supports better stakeholder engagement. Supports better testing practices. Supports better tooling. Supports better training and onboarding. Supports better versioning of AP Is. Supports more expressive type systems. Encourages the use of functional programming principles. Facilitates better integration with other languages. Improved API design. Improves control over class hierarchies. |
| gptkbp:challenges |
Ensuring backward compatibility.
|
| gptkbp:class |
non-sealed class Rectangle implements Shape {}
|
| gptkbp:code |
sealed interface Shape {}
|
| gptkbp:collaborated_with |
gptkb:Open_JDK_contributors
Open source projects Java community projects Java open-source initiatives |
| gptkbp:collaborations |
multiple stakeholders
various contributors Java community members |
| gptkbp:community |
Error reporting
|
| gptkbp:community_engagement |
Active discussions on forums.
Active discussions in forums. |
| gptkbp:community_events |
Conferences discussing JEP 409.
|
| gptkbp:community_impact |
Encourages cleaner code.
|
| gptkbp:community_involvement |
Engaged with Java user groups.
|
| gptkbp:community_support |
Strong community support.
Strong support from the Java community. Strong support from Java user groups. |
| gptkbp:contributed_to |
Java language evolution
Java graphics stack |
| gptkbp:contribution |
Significant.
Community contributions. Enhances language expressiveness. Enhances the expressiveness of the language. Improves code maintainability. Promotes better software design. Contributes to the evolution of the Java programming language. Part of Project Loom. |
| gptkbp:created |
2021-06-08
|
| gptkbp:design |
Simplicity and clarity.
Encapsulation and control. Encapsulation of type hierarchies. |
| gptkbp:developer |
Completed in 2021.
|
| gptkbp:discusses |
Open JDK mailing list
Open JDK mailing list. https://openjdk.java.net/jeps/409 |
| gptkbp:education |
Rapid.
|
| gptkbp:end_date |
2021-09-14
|
| gptkbp:ends_at |
March 2022
JDK 17 release Accepted as a standard feature. Sealed classes are a valuable addition to the Java language. |
| gptkbp:enhances |
gptkb:language
user experience type checking type safety developer experience graphics rendering code maintainability Type inference pattern matching capabilities Potential for more sealed types. tool compatibility |
| gptkbp:example |
Sealed interfaces can restrict implementations.
Used in enterprise applications. Code examples available. Example of sealed interface implementation. Used in frameworks and libraries. Used in frameworks to limit extensibility. class Cat extends Animal. class Dog extends Animal. class Shape permits Circle, Square. final class Cat extends Animal. final class Square extends Shape. non-sealed class Circle extends Shape. non-sealed class Dog extends Animal. sealed class Vehicle permits Car, Truck. sealed interface Animal permits Dog, Cat. sealed interface Shape permits Circle, Square. Allows defining a restricted hierarchy of types. final class Circle implements Shape {} |
| gptkbp:exemplifies |
object destructuring
|
| gptkbp:features |
gptkb:JDK_18
Pattern Matching Sealed classes. Support for high-resolution displays. |
| gptkbp:feedback |
Positive reception.
Positive feedback from the community. Constructive. Open JDK mailing list. Open JDK mailing lists. Positive feedback from developers. Positive from the Java community. Increased clarity in code. Developers appreciate the feature. |
| gptkbp:first_appearance |
gptkb:JDK_17
|
| gptkbp:focuses_on |
Compiler improvements
|
| gptkbp:future_plans |
Further optimizations planned.
Potential enhancements to sealed types. Exploration of sealed types. Further enhancements to type system. |
| gptkbp:has_documentation |
Comprehensive documentation provided.
Detailed in official Java documentation. |
| gptkbp:has_version |
Introduced in JDK 17.
Evolved from earlier proposals. |
| gptkbp:historical_impact |
May require refactoring.
|
| https://www.w3.org/2000/01/rdf-schema#label |
JEP 409
|
| gptkbp:impact |
Improves type safety.
Java applications on mac OS. Enhances the expressiveness of the type system. Improves maintainability and readability of code. Improves type safety and maintainability. Facilitates better API design. Enhances the Java type system. Enhances type safety and maintainability. |
| gptkbp:improves |
code readability
Type checking rendering speed GPU utilization tool usability |
| gptkbp:includes |
gptkb:New_Features
Bug Fixes Enhancements New language features documentation updates examples of sealed interfaces |
| gptkbp:influenced_by |
Scala's sealed traits
|
| gptkbp:innovation |
Java tooling
Sealed interfaces. |
| gptkbp:introduced |
gptkb:JDK_17
gptkb:JDK_15 gptkb:JDK_18 gptkb:Java_17 new syntax |
| gptkbp:is_a_framework_for |
future Java versions
Encourages better design. Frameworks can utilize sealed interfaces. Frameworks can leverage sealed interfaces. Java frameworks for better type safety. |
| gptkbp:is_a_resource_for |
Available online.
Documentation and tutorials. Documentation available on Open JDK. Blogs and articles discussing sealed interfaces. Documentation on Open JDK. |
| gptkbp:is_adopted_by |
gptkb:chess_match
open-source projects Java applications Open source projects Enterprise applications Java developers Widely adopted in modern Java applications. High among Java developers. Increasing among Java developers. Learning curve for new users. Learning curve for developers. Widely adopted in Java SE 17. High adoption in the Java community. Widely adopted in Java FX applications. |
| gptkbp:is_aimed_at |
gptkb:Java_SE_platform
gptkb:software Enterprise Applications Mobile Applications Web Applications Java developers Cloud Applications improving user experience modernizing Java improving developer productivity |
| gptkbp:is_aligned_with |
Java's long-term goals
mac OS development trends |
| gptkbp:is_analyzed_in |
Static analysis tools
Code review tools technical papers Java research papers |
| gptkbp:is_associated_with |
Java language features
Java tooling improvements |
| gptkbp:is_celebrated_in |
Java meetups
Java anniversaries |
| gptkbp:is_challenged_by |
Legacy code
Backward compatibility issues |
| gptkbp:is_cited_in |
Java documentation
Java enhancement discussions Java language specifications |
| gptkbp:is_compared_to |
Similar to sealed classes.
|
| gptkbp:is_compatible_with |
gptkb:Java_17
mac OS 10.14 and later. Backward compatible with existing interfaces. Backward compatible with existing code. |
| gptkbp:is_considered |
a significant enhancement
|
| gptkbp:is_described_as |
gptkb:Record_Patterns
Java documentation Java tutorials Sealed Interfaces Introduces a new rendering pipeline for mac OS. Java blogs Introduces sealed classes and interfaces to restrict which classes can extend or implement them. Java enhancement proposal documents Allows interfaces to be declared as sealed. Introduces sealed interfaces to restrict which classes can implement them. JDK 17 Release Schedule JDK 18 Language Enhancements JDK 17 Compiler Changes |
| gptkbp:is_designed_to |
September 2021
enhance performance |
| gptkbp:is_discussed_in |
gptkb:Java_User_Groups
gptkb:Java_conferences gptkb:software_framework Java Conferences Developer conferences Java user groups Java Enhancement Proposal Meetings Java Forums Java forums Java mailing lists Java newsletters Java podcasts Open JDK Mailing Lists Open JDK mailing lists |
| gptkbp:is_documented_in |
gptkb:API
gptkb:Java_Enhancement_Proposal gptkb:chess_match JDK 18 Release Notes JEP Index Java API Documentation Java API documentation Java SE Documentation Java SE Release Notes Java Tutorials Java specifications JDK 17 Release Notes Official JDK documentation Open JDK documentation official JEP index Java SE Best Practices Guide Java SE Compatibility Guide Java SE Features Overview Java SE Migration Guide Java SE Performance Guide Java SE Security Guide Java SE Troubleshooting Guide Java SE Upgrade Guide Java SEFAQ JEP 409 Specification |
| gptkbp:is_evaluated_by |
gptkb:academic_research
Java developers Java experts Java analysts Java educators Usage statistics available. |
| gptkbp:is_expected_to |
enhance developer experience
increase productivity improve resource management reduce CPU usage improve developer productivity improve frame rates reduce boilerplate code enhance community engagement. Enhance developer experience enhance visual fidelity support modern development practices enhance application responsiveness improve overall system stability enable better animations enhance cross-platform compatibility facilitate modern UI development improve compatibility with third-party libraries provide better debugging tools reduce memory consumption support advanced graphics features support future mac OS versions support high-performance graphics applications support new hardware capabilities support new rendering techniques fewer tool-related issues |
| gptkbp:is_explored_in |
Java tutorials
|
| gptkbp:is_implemented_in |
gptkb:Java_SE_17
gptkb:software gptkb:language gptkb:JDK_18 gptkb:JDK_18_Compiler gptkb:Java_Enhancement_Proposal gptkb:chess_match Completed Implemented in the Java compiler. Implemented in the Java language. Java. Widely accepted. Completed. Ensuring backward compatibility. Part of the Java language. Complexity in compiler design. Code samples available. Part of JDK 17. Examples available in the JDK. Requires careful design consideration. Java FX team JDK 17 Compiler |
| gptkbp:is_influenced_by |
User feedback
developer feedback functional programming principles Previous JE Ps previous JE Ps |
| gptkbp:is_influential_in |
software development practices
Java development practices |
| gptkbp:is_integrated_with |
gptkb:Java_frameworks
|
| gptkbp:is_motivated_by |
To provide more control over which classes can implement an interface.
Improve the modeling of hierarchies. Enhance the expressiveness of the type system. To provide more control over the class hierarchy. |
| gptkbp:is_part_of |
gptkb:Java_SE_17
gptkb:Java_SE_18 gptkb:Java_SE_Platform gptkb:Java_SE_Development_Kit gptkb:Java_Language_Specification gptkb:Java_Enhancement_Proposal Java language evolution Java platform evolution JDK Enhancement-Proposal process Java Development Process Java SE 17 features Java programming language evolution Java 18 release cloud-native Java development Java 17 Release Notes |
| gptkbp:is_promoted_by |
gptkb:Database_Management_System
Java community events Java advocacy groups Java advocates Java influencers Java marketing campaigns Java marketing materials |
| gptkbp:is_recognized_by |
gptkb:Database_Management_System
Java awards Java organizations |
| gptkbp:is_referenced_in |
Technical papers
Java textbooks Java books Subsequent JE Ps subsequent JE Ps Java SE 18 features |
| gptkbp:is_reflected_in |
current industry trends
|
| gptkbp:is_related_to |
gptkb:JEP_411
gptkb:JEP_360 gptkb:JEP_382 gptkb:JEP_383 gptkb:JEP_110 gptkb:JEP_406 gptkb:JEP_407 gptkb:JEP_410 gptkb:JEP_418 |
| gptkbp:is_reviewed_by |
gptkb:software_framework
gptkb:Java_community Peer reviewers JDK Review Board Java experts Java Community Process. Java SE review board |
| gptkbp:is_standardized_by |
Standardized in JDK 17.
|
| gptkbp:is_supported_by |
gptkb:Open_JDK_community
gptkb:software gptkb:Java_community gptkb:JVM gptkb:Apple's_Metal_framework Multiple platforms Java Community Java user groups Java ID Es Java 17 and later versions Java training programs |
| gptkbp:is_tasked_with |
refine Java tools
|
| gptkbp:is_tested_for |
Integration tests
Java development environments Extensively tested. J Unit tests JDK 18 builds Java QA teams Java beta releases Automated tests Java test suites Extensive testing on mac OS. Extensively tested in JDK. |
| gptkbp:is_utilized_in |
gptkb:Java_frameworks
enterprise applications Java applications Java enterprise applications Java startups Java applications on mac OS |
| gptkbp:issues |
JDK-8251234
|
| gptkbp:key |
Java's future direction
Enhances pattern matching capabilities. Java's modernization strategy Sealed interfaces improve type safety. Sealed classes allow control over class inheritance. Provides a way to define a restricted class hierarchy. Sealed interfaces restrict implementations. Allows interfaces to be sealed. Sealed interfaces enhance type safety. Sealed interfaces allow control over which classes can implement them. Sealed interfaces provide better control over type hierarchies. |
| gptkbp:key_issues |
Understand the implications of sealing.
|
| gptkbp:keywords |
Sealed interfaces enhance expressiveness.
Sealed interfaces provide better control. |
| gptkbp:language |
Type system enhancement.
Sealed types. |
| gptkbp:latest_version |
gptkb:JDK_17
gptkb:Java_SE_17 gptkb:JEP_409 Java 17. Java SE 17. Sets a precedent for future enhancements. JDK 17+ |
| gptkbp:library |
Encourages better design patterns.
Libraries can leverage sealed interfaces. Libraries utilizing sealed interfaces. Java standard library. |
| gptkbp:notable_achievement |
Java's evolution
|
| gptkbp:notable_for |
Java toolchain
|
| gptkbp:notable_production |
Facilitates better design.
|
| gptkbp:notable_recipients |
Java language design
|
| gptkbp:origin |
Java ecosystem.
better integration of tools more expressive Java syntax |
| gptkbp:outcome |
Enhanced expressiveness.
|
| gptkbp:part_of |
modernize Java tools
|
| gptkbp:performance |
Minimal impact.
Negligible. Enhanced graphics performance. Minimal performance impact. |
| gptkbp:performed_by |
Use sealed interfaces for better API design.
Use sealed interfaces for API design. |
| gptkbp:plot_summary |
Introduces sealed interfaces to the Java programming language.
|
| gptkbp:population_trend |
Adoption of sealed types.
Increased use of sealed types. |
| gptkbp:products |
Improves maintainability.
|
| gptkbp:project |
Open JDK projects.
Open JDK. Open-source projects utilizing sealed interfaces. |
| gptkbp:proposed_by |
gptkb:Database_Management_System
gptkb:JDK_17 gptkb:Pattern_Matching_for_instanceof gptkb:Record_Patterns gptkb:Sealed_Classes gptkb:Brian_Goetz gptkb:chess_match JDK Enhancement-Proposal Team tool enhancements Java language improvement language enhancement JDK 17 Tool Changes |
| gptkbp:provides |
Release Notes
better error messages Improved diagnostics More concise syntax better API design better integration with mac OS features a way to define a restricted class hierarchy |
| gptkbp:provides_information_on |
Guidelines for implementing sealed interfaces.
|
| gptkbp:published_by |
gptkb:Java_Magazine
2021-07-14 JDK team |
| gptkbp:regulatory_compliance |
Conforms to Java language specifications.
Conforms to the Java Language Specification. Conforms to the principles of object-oriented design. |
| gptkbp:related_concept |
gptkb:Sealed_classes
Java Language Specification. Java SE specifications. Java SE Platform. Type hierarchies. |
| gptkbp:related_jeps |
gptkb:JEP_411
gptkb:JEP_360 gptkb:JEP_15 gptkb:JEP_110 gptkb:JEP_406 JEP 1100 JEP 409. JEP 360, JEP 181. |
| gptkbp:related_to |
gptkb:JEP_360
gptkb:Sealed_Classes gptkb:JEP_15 gptkb:Java_Enhancement_Proposal Pattern Matching Graphics Rendering |
| gptkbp:release_date |
2021-09-14
September 2021 |
| gptkbp:released |
gptkb:JDK_17
gptkb:Java_SE_17 gptkb:JDK_18 gptkb:Java_17 Included in JDK 17 release. |
| gptkbp:replaced_by |
Deprecated features
Old rendering pipeline. Existing mac OS rendering pipeline deprecated tools |
| gptkbp:requires |
Metal API
JDK 17 or later mac OS 10.15 or later JDK 15 or later for sealed classes. |
| gptkbp:resulted_in |
community feedback
extensive research |
| gptkbp:security_features |
No new security risks.
Enhances security by limiting implementations. |
| gptkbp:significance |
Java 17 features
|
| gptkbp:specifies |
gptkb:Java_Language_Specification
a new feature in Java Defines the syntax and semantics of sealed interfaces. Defines how sealed interfaces work. Defines a new modifier 'sealed' for interfaces. |
| gptkbp:sponsor |
Java community.
Java developers. |
| gptkbp:status |
gptkb:Final
Standard Feature Targeted for JDK 17 |
| gptkbp:strategic_importance |
enhanced developer productivity
|
| gptkbp:succeeded_by |
Adoption rate and community feedback.
|
| gptkbp:supports |
modern development practices
High-DPI displays data-oriented programming |
| gptkbp:sustainability_initiatives |
streamline Java development
reduce complexity in Java tools |
| gptkbp:targets |
gptkb:JDK_17
desktop applications |
| gptkbp:technology |
gptkb:software
gptkb:video_game gptkb:Java_Enhancement_Proposal Java SE. Java Virtual Machine. |
| gptkbp:title |
gptkb:Sealed_Classes
gptkb:New_mac_OS_Rendering_Pipeline Sealed Interfaces New mac OS rendering pipeline |
| gptkbp:training |
Importance of community feedback.
|
| gptkbp:tutorials |
Available tutorials for developers.
Tutorials available for learning sealed interfaces. |
| gptkbp:type |
Strengthens the type system.
|
| gptkbp:updates |
2021-09-15
|
| gptkbp:use_case |
Frameworks and libraries.
API design. API design with controlled extensibility. |
| gptkbp:user_base |
Java developers.
|
| gptkbp:user_reviews |
gptkb:Gilad_Bracha
gptkb:Brian_Goetz gptkb:Venkat_Subramaniam gptkb:Mark_Reinhold gptkb:Jesse_Glick March 2021 2021-07-15 JDK Reviewers |
| gptkbp:uses |
Metal API
Used to control the inheritance of interfaces. |
| gptkbp:was_a_response_to |
community needs
developer challenges |
| gptkbp:bfsParent |
gptkb:JEP_411
gptkb:JEP_384 gptkb:JEP_395 gptkb:JEP_17 gptkb:JEP_33 gptkb:JDK_15 gptkb:JEP_488 |
| gptkbp:bfsLayer |
4
|