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agentic-patterns/output/14-structured-task-scope-preview.txt

@@ -0,0 +1,19 @@
+# JDK: openjdk version "25.0.5" 2026-10-20 LTS
+$ javac --release 25 ScopeProbe.java
+ScopeProbe.java:1: error: StructuredTaskScope is a preview API and is disabled by default.
+import java.util.concurrent.StructuredTaskScope;
+                           ^
+  (use --enable-preview to enable preview APIs)
+ScopeProbe.java:6: error: StructuredTaskScope is a preview API and is disabled by default.
+        try (var scope = StructuredTaskScope.open()) {
+                         ^
+  (use --enable-preview to enable preview APIs)
+2 errors
+$ javac --release 25 --enable-preview ScopeProbe.java
+Note: ScopeProbe.java uses preview features of Java SE 25.
+Note: Recompile with -Xlint:preview for details.
+$ java -cp preview-classes ScopeProbe
+Error: LinkageError occurred while loading main class ScopeProbe
+	java.lang.UnsupportedClassVersionError: Preview features are not enabled for ScopeProbe (class file version 69.65535). Try running with '--enable-preview'
+$ java --enable-preview -cp preview-classes ScopeProbe
+security: ok | performance: ok