Test: Fix DtoQueryPlanCaptureTest by draining plans

ebean-test/src/test/java/io/ebean/xtest/base/DtoQueryPlanCaptureTest.java

@@ -72,10 +72,22 @@ class DtoQueryPlanCaptureTest extends BaseTestCase {
       .findList();
   }
 
+  private void drainCapturedPlans() {
+    QueryPlanRequest drain = new QueryPlanRequest();
+    drain.maxCount(100_000);
+    drain.maxTimeMillis(30_000);
+    DB.getDefault().metaInfo().queryPlanCollectNow(drain);
+  }
+
   @Test
   void nativeDtoQuery_capturesQueryPlan() {
     ResetBasicData.reset();
 
+    // drain any query plans captured by earlier tests in the suite, otherwise the
+    // shared (process-global) capture map can exhaust the collect budget below before
+    // our plan is reached (order dependent, and slow to capture on Oracle).
+    drainCapturedPlans();
+
     // build the plans first (default threshold -> no capture yet)
     assertThat(runNative()).isNotEmpty();
     runOrmBacked();
@@ -118,6 +130,9 @@ class DtoQueryPlanCaptureTest extends BaseTestCase {
   void nativeDtoQuery_withProfileLocation_capturesQueryPlan() {
     ResetBasicData.reset();
 
+    // drain stale captures first (see nativeDtoQuery_capturesQueryPlan)
+    drainCapturedPlans();
+
     // build the plan first (default threshold -> no capture yet)
     assertThat(runNativeWithLocation()).isNotEmpty();