Fix Cassandra 5.0 compatibility: use JDK 11 and skip removed scripted UDF option

Cassandra 5.0 requires JDK 11+ (not 8) and removed
scripted_user_defined_functions_enabled (replaced by WASM UDFs).
Both caused the cluster to hang/fail during startup, resulting in
~15-minute timeouts per test module.

Co-authored-by: fruch <340979+fruch@users.noreply.github.com>

Author: Copilot

.github/workflows/integration-tests.yml

@@ -104,17 +104,16 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        java-version: [8]
         python-version: ["3.11"]
         event_loop_manager: ["libev", "asyncio"]
 
     steps:
     - uses: actions/checkout@v6
 
-    - name: Set up JDK ${{ matrix.java-version }}
+    - name: Set up JDK 11
       uses: actions/setup-java@v5
       with:
-        java-version: ${{ matrix.java-version }}
+        java-version: 11
         distribution: 'adopt'
 
     - name: Install libev

tests/integration/__init__.py

@@ -483,13 +483,16 @@ def use_cluster(cluster_name, nodes, ipformat=None, start=True, workloads=None,
                 CCM_CLUSTER = ccm_cluster_clz(path, cluster_name, **ccm_options)
                 CCM_CLUSTER.set_configuration_options({'start_native_transport': True})
             if Version(cassandra_version) >= Version('4.1'):
-                CCM_CLUSTER.set_configuration_options({
+                options = {
                     'user_defined_functions_enabled': True,
-                    'scripted_user_defined_functions_enabled': True,
                     'materialized_views_enabled': True,
                     'sasi_indexes_enabled': True,
                     'transient_replication_enabled': True,
-                })
+                }
+                # scripted (JavaScript) UDFs were removed in Cassandra 5.0 (replaced by WASM UDFs)
+                if Version(cassandra_version) < Version('5.0'):
+                    options['scripted_user_defined_functions_enabled'] = True
+                CCM_CLUSTER.set_configuration_options(options)
             elif Version(cassandra_version) >= Version('2.2'):
                 CCM_CLUSTER.set_configuration_options({'enable_user_defined_functions': True})
                 if Version(cassandra_version) >= Version('3.0'):