Add JEP 261 workaround for DaCapo Chopin (#131)

docs/src/changelog.md

@@ -2,7 +2,7 @@
 ## Unreleased
 ### Added
 #### Base Configurations
-- DaCapo 23.11-Chopin
+- DaCapo 23.11-Chopin. Please use `dacapochopin_jep261` modifier when running this release with `callback` set due to JEP 261.
 - Temurin 21
 
 ### Changed
@@ -13,7 +13,6 @@
 - Deprecating Python 3.7 support for users. Python 3.7 was last released on June 6, 2023 (3.7.17), which was recent.
 
 ### Removed
-- Dropping Python 3.6 support for users. Last Python 3.6 release was on Sept. 4, 2021 (3.6.15), which was long ago.
 - Dropping Python 3.7 support for developers (NOT users). pytest 7.4+ requires at least Python 3.8 (still supported by Ubuntu 20.04 LTS).
 
 ### Fixed

src/running/config/base/dacapo.yml

@@ -128,3 +128,27 @@ suites:
         zxing: 215
     timing_iteration: 5
     timeout: 1800
+
+modifiers:
+  dacapochopin_jep261:
+    type: ModifierSet
+    val: dacapochopin_jep261_h2o21|dacapochopin_jep261_cassandra21|dacapochopin_jep261_trades21
+  dacapochopin_jep261_h2o21:
+    type: JVMArg
+    val: "-Dsys.ai.h2o.debug.allowJavaVersions=21 --add-opens java.base/java.lang=ALL-UNNAMED"
+    includes:
+      dacapochopin:
+        - h2o
+  dacapochopin_jep261_cassandra21:
+    type: JVMArg
+    val: "-Djava.security.manager=allow --add-exports java.base/sun.nio.ch=ALL-UNNAMED --add-opens java.base/java.io=ALL-UNNAMED --add-opens java.base/sun.nio.ch=ALL-UNNAMED"
+    includes:
+      dacapochopin:
+        - cassandra
+  dacapochopin_jep261_trades21:
+    type: JVMArg
+    val: "--add-opens java.base/java.util=ALL-UNNAMED"
+    includes:
+      dacapochopin:
+        - tradebeans
+        - tradesoap