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Investigate JEP draft: Lazy Constants

area:jdkIssues tied to artifacts published under a particular jdkIssues tied to artifacts published under a particular jdk

compat:java

compat:java:jepIssues corresponding to a JEP (JDK Enhancement Proposal)Issues corresponding to a JEP (JDK Enhancement Proposal)

compat:java:jep:unstableIssues corresponding to a JEP (JDK Enhancement Proposal) which is not stable yet.Issues corresponding to a JEP (JDK Enhancement Proposal) which is not stable yet.

itype:spikeWe need to spend time and investigate something, before we decide what to do next.We need to spend time and investigate something, before we decide what to do next.

Status: Open.

#24035 In scala/scala3;

· He-Pin opened on Sep 23, 2025

JEP 500: Prepare to Make Final Mean Final

area:jdkIssues tied to artifacts published under a particular jdkIssues tied to artifacts published under a particular jdk

compat:java:jepIssues corresponding to a JEP (JDK Enhancement Proposal)Issues corresponding to a JEP (JDK Enhancement Proposal)

compat:java:jep:unstableIssues corresponding to a JEP (JDK Enhancement Proposal) which is not stable yet.Issues corresponding to a JEP (JDK Enhancement Proposal) which is not stable yet.

itype:bug

itype:crash

itype:spikeWe need to spend time and investigate something, before we decide what to do next.We need to spend time and investigate something, before we decide what to do next.

Status: Open.

#23941 In scala/scala3;

· He-Pin opened on Sep 17, 2025

Investigate JEP 401: Value Classes and Objects (Preview)

area:jdkIssues tied to artifacts published under a particular jdkIssues tied to artifacts published under a particular jdk

compat:java

compat:java:jepIssues corresponding to a JEP (JDK Enhancement Proposal)Issues corresponding to a JEP (JDK Enhancement Proposal)

compat:java:jep:unstableIssues corresponding to a JEP (JDK Enhancement Proposal) which is not stable yet.Issues corresponding to a JEP (JDK Enhancement Proposal) which is not stable yet.

itype:spikeWe need to spend time and investigate something, before we decide what to do next.We need to spend time and investigate something, before we decide what to do next.

Status: Open.

#23892 In scala/scala3;

· He-Pin opened on Sep 10, 2025

JEP: Classifier API to Map Finite Sets to Indexes

area:jdkIssues tied to artifacts published under a particular jdkIssues tied to artifacts published under a particular jdk

compat:java:jepIssues corresponding to a JEP (JDK Enhancement Proposal)Issues corresponding to a JEP (JDK Enhancement Proposal)

compat:java:jep:unstableIssues corresponding to a JEP (JDK Enhancement Proposal) which is not stable yet.Issues corresponding to a JEP (JDK Enhancement Proposal) which is not stable yet.

itype:performance

itype:spikeWe need to spend time and investigate something, before we decide what to do next.We need to spend time and investigate something, before we decide what to do next.

Status: Open.

#23264 In scala/scala3;

· He-Pin opened on May 25, 2025

Generated code for lambda expressions has been changed in Java 24

area:jdkIssues tied to artifacts published under a particular jdkIssues tied to artifacts published under a particular jdk

compat:java:jepIssues corresponding to a JEP (JDK Enhancement Proposal)Issues corresponding to a JEP (JDK Enhancement Proposal)

compat:java:jep:stableIssues corresponding to a JEP which got already delivered as a stable feature in a JDK releaseIssues corresponding to a JEP which got already delivered as a stable feature in a JDK release

itype:enhancement

Status: Open.

#22455 In scala/scala3;

· He-Pin opened on Jan 24, 2025

Investigate JEP 455: Primitive Types in Patterns, instanceof, and switch

area:jdkIssues tied to artifacts published under a particular jdkIssues tied to artifacts published under a particular jdk

compat:java:jepIssues corresponding to a JEP (JDK Enhancement Proposal)Issues corresponding to a JEP (JDK Enhancement Proposal)

compat:java:jep:stableIssues corresponding to a JEP which got already delivered as a stable feature in a JDK releaseIssues corresponding to a JEP which got already delivered as a stable feature in a JDK release

itype:spikeWe need to spend time and investigate something, before we decide what to do next.We need to spend time and investigate something, before we decide what to do next.

Status: Open.

#22453 In scala/scala3;

· He-Pin opened on Jan 24, 2025

JEP 482: Flexible Constructor Bodies

area:jdkIssues tied to artifacts published under a particular jdkIssues tied to artifacts published under a particular jdk

compat:java:jepIssues corresponding to a JEP (JDK Enhancement Proposal)Issues corresponding to a JEP (JDK Enhancement Proposal)

compat:java:jep:stableIssues corresponding to a JEP which got already delivered as a stable feature in a JDK releaseIssues corresponding to a JEP which got already delivered as a stable feature in a JDK release

itype:spikeWe need to spend time and investigate something, before we decide what to do next.We need to spend time and investigate something, before we decide what to do next.

Status: Open.

#22406 In scala/scala3;

· He-Pin opened on Jan 19, 2025