JEP 361

GPTKB entity

Statements (555)

Predicate	Object
gptkbp:instance_of	gptkb:API gptkb:Java_Enhancement_Proposal
gptkbp:bfsLayer	4
gptkbp:bfsParent	gptkb:JEP_382 gptkb:JEP_33 gptkb:JDK_10 gptkb:JDK_14 gptkb:Java_10
gptkbp:abstract	This JEP proposes to allow the use of the local-variable syntax for lambda parameters.
gptkbp:addresses	user feedback on documentation memory allocation issues
gptkbp:affects	Java developers
gptkbp:aims_to	gptkb:Z_Garbage_Collector memory fragmentation documentation errors Simplify type checks Improve observability of Java applications. enhance the quality of JDK documentation improve observability predictable release cadence
gptkbp:approves	March 2018 March 2021 JDK Release Team JDK Release Team.
gptkbp:author	gptkb:Brian_Goetz gptkb:Maurizio_Cimadamore
gptkbp:benefits	gptkb:software IT professionals system administrators Code maintainability application developers Improves code readability and reduces boilerplate. Better performance monitoring. Enhanced diagnostics. Reduced overhead. Encourages a more declarative style of programming. Reduces verbosity.
gptkbp:challenges	Requires careful design to avoid complexity.
gptkbp:code	(var s) -> s.length()
gptkbp:collaborated_with	gptkb:Open_JDK_community academic institutions open-source projects Research institutions. Industry partners. Open source projects.
gptkbp:collaborations	multiple stakeholders Java developers Java community stakeholders
gptkbp:community_involvement	High.
gptkbp:contains	API changes Security updates Deprecations Removals Removed features
gptkbp:context	Lambda expressions.
gptkbp:contributed_to	Java observability tools Java observability.
gptkbp:contribution	Improves readability. Enhances lambda syntax.
gptkbp:created	2017-07-10
gptkbp:date	March 2018
gptkbp:developer	September 2018
gptkbp:discusses	https://openjdk.java.net/jeps/361
gptkbp:enables	event filtering real-time monitoring Real-time monitoring. Null-safe type checks
gptkbp:ends_at	March 2019 The proposal was accepted and implemented.
gptkbp:enhances	gptkb:language performance analysis developer experience Java Flight Recorder. API documentation readability the overall Java ecosystem. release predictability concurrent memory management
gptkbp:example	var stream = list.stream(); (var x) -> x + 1 switch (day) { case MONDAY: ... } var list = new Array List< String>(); var map = new Hash Map< String, List< String>>(); var optional = Optional.of Nullable(value); var result = compute(); switch (value) { case 1 -> ' One'; case 2 -> ' Two'; } String result = switch (day) { case MONDAY -> " Start of the week"; } Sealed interfaces can be used in pattern matching. (var a, var b) -> a + b switch (value) { case 1 -> ' One'; case 2 -> ' Two'; case 3 -> ' Three'; case 4 -> ' Four'; case 5 -> ' Five'; } switch (value) { case 1 -> ' One'; case 2 -> ' Two'; default -> ' Unknown'; } switch (value) { case 1 -> ' One'; case 2 -> ' Two'; case 3 -> ' Three'; case 4 -> ' Four'; case 5 -> ' Five'; case 6 -> ' Six'; case 7 -> ' Seven'; } switch (value) { case 1 -> ' One'; case 2 -> ' Two'; case 3 -> ' Three'; case 4 -> ' Four'; case 5 -> ' Five'; case 6 -> ' Six'; } switch (value) { case 1 -> ' One'; case 2 -> ' Two'; case 3 -> ' Three'; case 4 -> ' Four'; case 5 -> { /* action / yield ' Five'; } } switch (value) { case 1 -> { / action / yield ' One'; } case 2 -> { / action / yield ' Two'; } case 3 -> { / action / yield ' Three'; } } switch (value) { case 1: yield ' One'; case 2: yield ' Two'; } switch (value) { case 1 -> { / action / yield ' One'; } } switch (value) { case 1 -> ' One'; case 2 -> ' Two'; case 3 -> ' Three'; case 4 -> ' Four'; default -> ' Unknown'; } switch (value) { case 1 -> ' One'; case 2 -> ' Two'; case 3 -> ' Three'; case 4 -> { / action / yield ' Four'; } } switch (value) { case 1 -> ' One'; case 2 -> ' Two'; case 3 -> ' Three'; default -> ' Unknown'; } switch (value) { case 1 -> ' One'; case 2 -> ' Two'; case 3 -> ' Three'; case 4 -> ' Four'; case 5 -> ' Five'; default -> ' Unknown'; } switch (value) { case 1 -> { yield ' One'; } } switch (value) { case 1, 2: yield ' One or Two'; } switch (value) { case 1: yield ' One'; } switch (value) { case null: yield ' Null'; } switch (value) { default: yield ' Default'; } switch (value) { case 1 -> ' One'; case 2 -> ' Two'; default -> ' Other'; } switch (value) { case 1 -> ' One'; case 2 -> ' Two'; case 3 -> ' Three'; case 4 -> ' Four'; case 5 -> ' Five'; case 6 -> ' Six'; default -> ' Unknown'; } switch (value) { case 1 -> ' One'; case 2 -> ' Two'; case 3 -> ' Three'; } switch (value) { case 1 -> ' One'; case 2 -> ' Two'; case 3 -> ' Three'; case 4 -> ' Four'; case 5 -> ' Five'; case 6 -> { / action / yield ' Six'; } } switch (value) { case 1 -> { / code / yield ' One'; } } switch (value) { case 1 -> { / action / yield ' One'; } case 2 -> ' Two'; } switch (value) { case 1 -> ' One'; case 2 -> ' Two'; case 3 -> ' Three'; case 4 -> ' Four'; } switch (value) { case 1 -> ' One'; case 2 -> ' Two'; case 3 -> ' Three'; case 4 -> ' Four'; case 5 -> ' Five'; case 6 -> ' Six'; case 7 -> { / action / yield ' Seven'; } } switch (value) { case 1 -> ' One'; case 2 -> { / action / yield ' Two'; } } switch (value) { case 1 -> ' One'; case 2 -> ' Two'; case 3 -> ' Three'; case 4 -> ' Four'; case 5 -> ' Five'; case 6 -> ' Six'; case 7 -> ' Seven'; default -> ' Unknown'; } switch (value) { case 1 -> { / action / yield ' One'; } case 2 -> { / action */ yield ' Two'; } }
gptkbp:facilitates	Data analysis. data collection
gptkbp:features	Allows switch to return a value. Enables the use of yield statement. Supports multiple case labels. Type inference.
gptkbp:feedback	Positive. Positive reception from the Java community. Open discussion forums.
gptkbp:first_published	2020-03-17
gptkbp:focus	gptkb:Company
gptkbp:focuses_on	low-latency applications user-friendly documentation
gptkbp:formulation	Allows var in lambda parameters.
gptkbp:future_plans	Potential enhancements based on user feedback. No further work planned.
gptkbp:guidance_system	JDK 17 release planning
gptkbp:has_version	Introduced in Java 11.
https://www.w3.org/2000/01/rdf-schema#label	JEP 361
gptkbp:illustrator	JDK 17 feature timelines JDK 17 timeline
gptkbp:impact	No impact on existing code. Simplifies code by reducing verbosity. Improves code readability and reduces boilerplate. Improves type safety and maintainability. Affects existing switch statements.
gptkbp:improves	Code readability application responsiveness application performance monitoring documentation generation tools search functionality in documentation Application performance.
gptkbp:includes	Bug fixes New features Performance improvements release candidate support for HTM L5 improved navigation features feature freeze date memory management adjustments final release date ramp-down period
gptkbp:innovation	Java documentation standards
gptkbp:introduced	gptkb:JDK_17 gptkb:Java_11 gptkb:Java_16 gptkb:JDK_11 gptkb:JDK_12 new syntax for documentation comments
gptkbp:is_a	gptkb:Java_Enhancement_Proposal
gptkbp:is_a_document_that	release milestones JDK 17 release phases JDK 17 release process JDK 17 release stakeholders a roadmap for JDK 17 release schedule details release schedules in Java development
gptkbp:is_a_framework_for	Java documentation practices JDK development
gptkbp:is_a_resource_for	Available online.
gptkbp:is_adopted_by	gptkb:Non-profit_organizations gptkb:Java_frameworks gptkb:software gptkb:Educational_Institution gptkb:chess_match Financial institutions Healthcare organizations Research institutions Open-source projects Startups Software companies Media companies data analysis enterprise applications cloud environments real-time analytics software companies startups Freelancers Manufacturing companies Telecommunications companies Consulting firms Transportation companies Energy companies Startups. Government organizations Gaming companies Retail companies Cloud environments. Enterprise applications. Large enterprises. High among developers. Widely adopted in Java 11.
gptkbp:is_aimed_at	Java developers enhancing developer productivity large heap applications
gptkbp:is_aligned_with	modern software development practices Industry standards. Java community standards
gptkbp:is_analyzed_in	Research papers technical papers software architects Data scientists.
gptkbp:is_associated_with	gptkb:Java_SE_17
gptkbp:is_cited_in	Industry reports. Research articles. Java books
gptkbp:is_compatible_with	Java applications Microservices. Backward compatible with existing Java code. Backward compatible.
gptkbp:is_considered	Java 18 features future Java versions
gptkbp:is_described_as	gptkb:Pattern_Matching_for_instanceof Technical articles Java documentation Java tutorials Introduces the 'var' keyword for local variable type inference. JDK 15 Release Notes JDK 17 Release Notes Introduces switch expressions to enhance the switch statement. Enhances the switch statement to allow it to be used as an expression. Introduces sealed interfaces to the Java programming language. documentation improvements in JDK 11 Enhances Java Flight Recorder to support event streaming. JDK 17 Release Schedule
gptkbp:is_designed_for	Java applications
gptkbp:is_designed_to	support diverse user needs facilitate learning for new developers improve onboarding for new developers
gptkbp:is_discussed_in	gptkb:software_framework Developer conferences Java experts Java meetups Online communities. Conferences. Technical blogs technical blogs technical webinars Technical forums. Meetups. Java forums
gptkbp:is_documented_in	gptkb:Java_community Java SE documentation Java documentation Official JDK documentation Open JDK documentation Open JDK website JDK Enhancement-Proposal repository Open JDK documentation. Java Enhancement Proposal documents JEP 361 documentation
gptkbp:is_enhanced_by	community contributions Community contributions.
gptkbp:is_evaluated_by	industry experts real-world scenarios Software engineers performance benchmarks Code reviews Performance metrics. Performance benchmarks. Performance engineers. Benchmarks.
gptkbp:is_expected_to	improve throughput better community contributions future JDK documentation proposals increase documentation usage
gptkbp:is_explored_in	Java tutorials Java workshops Java courses
gptkbp:is_implemented_in	gptkb:language gptkb:video_game gptkb:JDK_11 gptkb:chess_match Java developers Implemented in the Java compiler. Part of the Java language specification. Completed. Java 11 and later versions Open JDK. Java Virtual Machine. JDK 11 release Open JDK 17 Compiler changes.
gptkbp:is_influenced_by	gptkb:JEP_290 Functional programming concepts community feedback user experience research Type inference previous JE Ps
gptkbp:is_integrated_with	gptkb:Java_frameworks gptkb:Cloud_Computing_Service Development environments. Java build tools Cloud platforms. Java monitoring solutions Monitoring tools.
gptkbp:is_linked_to	Java memory model JDK release process
gptkbp:is_motivated_by	To improve the expressiveness of the Java language. To provide more control over the inheritance of interfaces. To improve the readability and consistency of lambda expressions.
gptkbp:is_part_of	gptkb:Java_SE_11 gptkb:Java_SE_Platform gptkb:software gptkb:JDK_11 gptkb:Java_Enhancement_Proposal Java language evolution Java platform evolution Java runtime environment Java ecosystem. Java standard library Java 17 features Java performance improvements Java language enhancements Java's strategic goals Java SE Platform. Java's commitment to quality Java's ongoing improvement process Java performance optimization. JDK release planning Java SE release strategy Java development lifecycle. Java SE 16 features Java SE platform evolution Java SE 17 planning
gptkbp:is_promoted_by	gptkb:Database_Management_System gptkb:Java_conferences Webinars Workshops. Java community events Java user groups Newsletters. Social media. Webinars. Java blogs Java newsletters Java podcasts Java user groups.
gptkbp:is_recognized_by	Industry leaders. Java developers.
gptkbp:is_recognized_for	its innovative approach to documentation
gptkbp:is_referenced_in	Online tutorials Java developers Java specifications Java standards Technical documentation. Technical papers. Java books JDK release schedules
gptkbp:is_reflected_in	community priorities in Java development
gptkbp:is_related_to	gptkb:JEP_411 gptkb:JEP_330 gptkb:JEP_382 gptkb:JEP_384 gptkb:JEP_391 gptkb:JEP_394 gptkb:JEP_260 gptkb:JEP_305 gptkb:ZGC gptkb:Java_Enhancement_Proposal performance tuning Performance tuning. memory management strategies JDK 17 features JFR (Java Flight Recorder) Garbage Collection algorithms
gptkbp:is_reviewed_by	gptkb:software_framework Technical committees peer reviewers Peer reviewers. software engineering journals
gptkbp:is_standardized_by	JDK release cycles
gptkbp:is_supported_by	gptkb:Open_JDK_community gptkb:multiple_platforms gptkb:Java_community gptkb:Java_libraries Multiple platforms Community contributions Java developers IDE plugins Java runtime environment Java user groups Community forums. Technical support. Documentation. Java ID Es Java certification programs Java user community Java community. Various operating systems. User guides.
gptkbp:is_tested_for	Unit tests quality assurance teams production environments Quality assurance. Extensively tested. Load testing. Java testing frameworks Continuous integration.
gptkbp:is_used_for	performance tuning
gptkbp:is_used_in	Cloud services Web applications Mobile applications Enterprise applications production environments Production environments.
gptkbp:is_utilized_in	data scientists microservices architecture monitoring tools system monitoring high-performance applications large-scale applications cloud applications debugging purposes Software development projects Developers. Research projects. Academic research. application diagnostics system architects Application profiling. Debugging. System monitoring.
gptkbp:key	gptkb:Java_11 Improves type safety. Java performance optimization Allows multiple case labels to be grouped. Java SE 17 release Supports yield statement for returning values. Enables switch to be used in a more functional style. Supports pattern matching. JDK 11 features Allows interfaces to restrict which classes can implement them. Local-variable type inference. Allows null case handling.
gptkbp:keywords	var, type inference, local variable
gptkbp:language	Java programming language.
gptkbp:latest_version	gptkb:Java_11 gptkb:Java_SE_14 1.0 JEP 361 (2020)
gptkbp:managed_by	gptkb:Open_JDK_community gptkb:Open_JDK_Community
gptkbp:notable_achievement	Java's documentation evolution Java SE development
gptkbp:origin	more accessible documentation
gptkbp:performance	No significant impact.
gptkbp:plot_summary	Enhancements and changes in JDK 17. Sealed interfaces provide a way to control the implementation of interfaces. Local-variable syntax for lambda parameters improves Java's lambda expressions.
gptkbp:presented_by	gptkb:Java_conferences
gptkbp:proposed_by	gptkb:Database_Management_System gptkb:Brian_Goetz release timelines JDK community new documentation tools Java release management JDK release coordination JDK 17 release strategy JDK release consistency JDK release expectations JDK release transparency streamline JDK releases
gptkbp:provides	better performance event streaming capabilities better examples in documentation API for event streaming Real-time event streaming capabilities. timeline for JDK 17 Type-safe casting
gptkbp:provides_information_on	future JDK releases JDK 17 development process
gptkbp:published_by	September 2020 September 2021 September 2018. Java magazines.
gptkbp:reduces	pause times
gptkbp:related_concept	Java SE. Sealed classes.
gptkbp:related_jeps	gptkb:JEP_286 gptkb:JEP_394 gptkb:JDK_11 gptkb:JEP_12 gptkb:JEP_409
gptkbp:related_to	gptkb:JEP_330 gptkb:JEP_344 gptkb:Java_SE_17 gptkb:Java_Flight_Recorder gptkb:JEP_12 gptkb:JEP_290 gptkb:JEP_326 gptkb:Java_SE_15
gptkbp:release_date	September 2021
gptkbp:released	gptkb:JDK_17 gptkb:Java_SE_10
gptkbp:replaced_by	Traditional instanceof checks
gptkbp:requires	JDK 17 or later JDK 16 or later JDK 11 or later JDK 11 or later. Java Development Kit (JDK) 16 or later
gptkbp:resulted_in	community-driven initiatives
gptkbp:specifies	gptkb:Java_Flight_Recorder gptkb:Java_Language_Specification Java Language Specification.
gptkbp:status	gptkb:Final Standard Feature Targeted for JDK 17
gptkbp:strategic_importance	gptkb:Java_Enhancement_Proposal
gptkbp:supports	modern web standards Event-driven architectures. event consumers
gptkbp:target_audience	Java developers.
gptkbp:targets	gptkb:JDK_17 gptkb:JDK_11 gptkb:JDK_12 gptkb:JDK_15
gptkbp:title	gptkb:JFR:_Event_Streaming gptkb:JFR_Event_Streaming Java SE 9: Local-Variable Type Inference Local-Variable Syntax for Lambda Parameters Sealed Interfaces Switch Expressions (Standard Feature) ZGC: Concurrent Memory Management Adjustments Switch Expressions (Standard Feature Preview)
gptkbp:updates	2018-03-20
gptkbp:use_case	Frameworks and libraries that require strict type hierarchies.
gptkbp:user_manual	Available in Java documentation.
gptkbp:user_reviews	gptkb:Brian_Goetz gptkb:Venkat_Subramaniam gptkb:Mark_Reinhold Completed. Community review. Various members of the Java community.
gptkbp:uses	Used in Java programming.
gptkbp:was_a_response_to	growing complexity of Java AP Is the need for better documentation tools
gptkbp:year_created	2019-09-17