He-Pin commented on code in PR #2106:
URL: https://github.com/apache/pekko/pull/2106#discussion_r2311779996
##########
actor/src/main/java/org/apache/pekko/util/ClassContext.java:
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@@ -0,0 +1,18 @@
+package org.apache.pekko.util;
+
+import java.util.function.Function;
+import java.util.stream.Stream;
+
+public final class ClassContext {
+ private ClassContext() {
+ throw new UnsupportedOperationException("Cannot instantiate utility
class");
+ }
+
+ private static final Function<Stream<StackWalker.StackFrame>, Class<?>[]>
CLASS_STACK_WALKER =
+ frames ->
frames.map(StackWalker.StackFrame::getDeclaringClass).toArray(Class<?>[]::new);
+
+ public static Class<?>[] getClassStack() {
+ return StackWalker.getInstance(StackWalker.Option.RETAIN_CLASS_REFERENCE)
+ .walk(CLASS_STACK_WALKER);
+ }
Review Comment:
much easier to write it in Java, I have a problem when supporting Scala 2.12
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