Trying to fix hanging tests by relaxing useStrictTraceWrites (#9380)

Author: AlexeyKuznetsov-DD

dd-java-agent/instrumentation/java-concurrent/java-concurrent-21/build.gradle

@@ -46,11 +46,6 @@ tasks.named("check").configure {
 
 dependencies {
   testImplementation project(':dd-java-agent:instrumentation:trace-annotation')
-
-  // Using Spock 2.4-M6 because it contains fix for deadlock when blocking in mock response generators.
-  // See: https://github.com/spockframework/spock/pull/1910
-  testImplementation libs.spock24.core
-  testImplementation libs.spock24.junit4
 }
 
 // Set all compile tasks to use JDK21 but let instrumentation code targets 1.8 compatibility

dd-java-agent/instrumentation/java-concurrent/java-concurrent-21/src/previewTest/groovy/StructuredConcurrencyTest.groovy

@@ -9,6 +9,12 @@ import static datadog.trace.agent.test.utils.TraceUtils.runnableUnderTrace
 import static java.time.Instant.now
 
 class StructuredConcurrencyTest extends AgentTestRunner {
+  @Override
+  boolean useStrictTraceWrites() {
+    // TODO: Monitor in CI to validate fix effectiveness against freezes.
+    return false
+  }
+
   /**
    * Tests the structured task scope with a single task.
    */

dd-java-agent/instrumentation/lettuce-4/src/test/groovy/Lettuce4ClientTestBase.groovy

@@ -83,4 +83,10 @@ abstract class Lettuce4ClientTestBase extends VersionedNamingTestBase {
     redisClient.shutdown()
     redisServer.stop()
   }
+
+  @Override
+  boolean useStrictTraceWrites() {
+    // TODO: Monitor in CI to validate fix effectiveness against freezes.
+    return false
+  }
 }