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He-Pin pushed a commit to branch add-future-lazy-vals
in repository https://gitbox.apache.org/repos/asf/pekko-persistence-dynamodb.git

commit 21c793d886df49dfc8302c5506f8c673ba1d47c0
Author: 虎鸣 <[email protected]>
AuthorDate: Sun Jun 14 18:25:49 2026 +0800

    feat: Add -Yfuture-lazy-vals for Scala 3.3.x builds
    
    Motivation:
    The Scala 3.3.8 compiler introduced the -Yfuture-lazy-vals flag to
    optionally use VarHandle instead of sun.misc.Unsafe for lazy val
    implementation. This prepares libraries for upcoming JDK releases
    that restrict sun.misc.Unsafe access.
    
    Modification:
    Add -Yfuture-lazy-vals to scalacOptions, conditionally applied only
    for Scala 3.3.x via CrossVersion.partialVersion or scalaBinaryVersion.
    
    Result:
    Scala 3.3.x build uses the future-proof VarHandle-based lazy val
    implementation, compatible with all JDK 9+ versions including future
    releases that restrict sun.misc.Unsafe.
    
    References:
    Refs scala/scala3-lts#637
    Refs apache/pekko#3059
---
 build.sbt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/build.sbt b/build.sbt
index deddaa5..e03276b 100644
--- a/build.sbt
+++ b/build.sbt
@@ -52,6 +52,10 @@ lazy val root = Project(
       "org.hdrhistogram" % "HdrHistogram" % "2.2.2" % Test,
       "com.dimafeng" %% "testcontainers-scala-scalatest" % 
testcontainersScalaVersion % Test),
     scalacOptions ++= Seq("-deprecation", "-feature"),
+    scalacOptions ++= {
+      if (scalaBinaryVersion.value == "3") Seq("-Yfuture-lazy-vals")
+      else Seq.empty
+    },
     Test / parallelExecution := false,
     // required by test-containers-scala
     Test / fork := true,


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