Add annotation to disable thread group check

src/main/java/de/tum/in/test/api/DisableThreadGroupCheck.java

@@ -0,0 +1,26 @@
+package de.tum.in.test.api;
+
+import org.apiguardian.api.API;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.Inherited;
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import static java.lang.annotation.ElementType.*;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+/**
+ * Disables the Thread Group Check.
+ *
+ * @author Benjamin Schmitz
+ * @since 1.14.0
+ * @version 1.0.0
+ */
+@API(status = API.Status.EXPERIMENTAL)
+@Inherited
+@Documented
+@Retention(RUNTIME)
+@Target({ TYPE, METHOD, ANNOTATION_TYPE })
+public @interface DisableThreadGroupCheck {
+}

src/main/java/de/tum/in/test/api/internal/ConfigurationUtils.java

@@ -33,6 +33,7 @@ public static AresSecurityConfiguration generateConfiguration(TestContext contex
 		config.withPackageWhitelist(generatePackageWhiteList(context));
 		config.withTrustedPackages(getTrustedPackages(context));
 		config.withThreadTrustScope(getThreadTrustScope(context));
+		config.withIsThreadGroupCheckDisabled(isThreadGroupCheckDisabled(context));
 		configureAllowLocalPort(config, context);
 		return config.build();
 	}
@@ -109,4 +110,8 @@ private static TrustScope getThreadTrustScope(TestContext context) {
 		return TestContextUtils.findAnnotationIn(context, TrustedThreads.class).map(TrustedThreads::value)
 				.orElse(TrustScope.MINIMAL);
 	}
+
+	public static Boolean isThreadGroupCheckDisabled(TestContext context) {
+		return TestContextUtils.findAnnotationIn(context, DisableThreadGroupCheck.class).isPresent();
+	}
 }

src/main/java/de/tum/in/test/api/security/AresSecurityConfiguration.java

@@ -26,12 +26,14 @@ public final class AresSecurityConfiguration {
 	private final Set<PackageRule> whitelistedPackages;
 	private final Set<PackageRule> trustedPackages;
 	private final TrustScope threadTrustScope;
+	private final boolean isThreadGroupCheckDisabled;
 
 	AresSecurityConfiguration(Optional<Class<?>> testClass, Optional<Method> testMethod, Path executionPath, // NOSONAR
 			Collection<String> whitelistedClassNames, Optional<Collection<PathRule>> whitelistedPaths,
 			Collection<PathRule> blacklistedPaths, Set<Integer> allowedLocalPorts, OptionalInt allowLocalPortsAbove,
 			Set<Integer> excludedLocalPorts, OptionalInt allowedThreadCount, Set<PackageRule> blacklistedPackages,
-			Set<PackageRule> whitelistedPackages, Set<PackageRule> trustedPackages, TrustScope threadTrustScope) {
+			Set<PackageRule> whitelistedPackages, Set<PackageRule> trustedPackages, TrustScope threadTrustScope,
+			boolean isThreadGroupCheckDisabled) {
 		this.testClass = Objects.requireNonNull(testClass);
 		this.testMethod = Objects.requireNonNull(testMethod);
 		this.executionPath = executionPath.toAbsolutePath();
@@ -46,6 +48,7 @@ public final class AresSecurityConfiguration {
 		this.whitelistedPackages = Set.copyOf(whitelistedPackages);
 		this.trustedPackages = Set.copyOf(trustedPackages);
 		this.threadTrustScope = threadTrustScope;
+		this.isThreadGroupCheckDisabled = isThreadGroupCheckDisabled;
 	}
 
 	public Optional<Class<?>> testClass() {
@@ -104,6 +107,10 @@ public TrustScope threadTrustScope() {
 		return threadTrustScope;
 	}
 
+	public boolean isThreadGroupCheckDisabled() {
+		return isThreadGroupCheckDisabled;
+	}
+
 	@Override
 	public boolean equals(Object obj) {
 		if (this == obj)
@@ -122,24 +129,27 @@ public boolean equals(Object obj) {
 				&& Objects.equals(blacklistedPaths, other.blacklistedPaths)
 				&& Objects.equals(blacklistedPackages, other.blacklistedPackages)
 				&& Objects.equals(whitelistedPackages, other.whitelistedPackages)
-				&& Objects.equals(threadTrustScope, other.threadTrustScope);
+				&& Objects.equals(threadTrustScope, other.threadTrustScope)
+				&& Objects.equals(isThreadGroupCheckDisabled, other.isThreadGroupCheckDisabled);
 	}
 
 	@Override
 	public int hashCode() {
 		return Objects.hash(executionPath, testClass, testMethod, whitelistedClassNames, allowedThreadCount,
-				whitelistedPaths, blacklistedPaths, blacklistedPackages, whitelistedPackages, threadTrustScope);
+				whitelistedPaths, blacklistedPaths, blacklistedPackages, whitelistedPackages, threadTrustScope,
+				isThreadGroupCheckDisabled);
 	}
 
 	@Override
 	public String toString() {
 		return String.format("AresSecurityConfiguration [whitelistedClassNames=%s, executionPath=%s," //$NON-NLS-1$
 				+ " testClass=%s, testMethod=%s, whitelistedPaths=%s, blacklistedPaths=%s, allowedLocalPorts=%s," //$NON-NLS-1$
 				+ " allowLocalPortsAbove=%s, excludedLocalPorts=%s, allowedThreadCount=%s," //$NON-NLS-1$
-				+ " blacklistedPackages=%s, whitelistedPackages=%s, trustedPackages=%s, threadTrustScope=%s]", //$NON-NLS-1$
+				+ " blacklistedPackages=%s, whitelistedPackages=%s, trustedPackages=%s, threadTrustScope=%s," //$NON-NLS-1$
+				+ " isThreadGroupCheckDisabled=%b]", //$NON-NLS-1$
 				whitelistedClassNames, executionPath, testClass, testMethod, whitelistedPaths, blacklistedPaths,
 				allowedLocalPorts, allowLocalPortsAbove, excludedLocalPorts, allowedThreadCount, blacklistedPackages,
-				whitelistedPackages, trustedPackages, threadTrustScope);
+				whitelistedPackages, trustedPackages, threadTrustScope, isThreadGroupCheckDisabled);
 	}
 
 	public String shortDesc() {

src/main/java/de/tum/in/test/api/security/AresSecurityConfigurationBuilder.java

@@ -60,6 +60,7 @@ public final class AresSecurityConfigurationBuilder {
 	private OptionalInt allowedThreadCount;
 	private Set<PackageRule> trustedPackages;
 	private TrustScope threadTrustScope;
+	private boolean isThreadGroupCheckDisabled;
 
 	private AresSecurityConfigurationBuilder() {
 		testClass = Optional.empty();
@@ -74,6 +75,7 @@ private AresSecurityConfigurationBuilder() {
 		allowedThreadCount = OptionalInt.empty();
 		trustedPackages = Set.of();
 		threadTrustScope = TrustScope.MINIMAL;
+		isThreadGroupCheckDisabled = false;
 	}
 
 	public AresSecurityConfigurationBuilder withPath(Path executionPath) {
@@ -142,12 +144,17 @@ public AresSecurityConfigurationBuilder withThreadTrustScope(TrustScope threadTr
 		return this;
 	}
 
+	public AresSecurityConfigurationBuilder withIsThreadGroupCheckDisabled(boolean isThreadGroupCheckDisabled) {
+		this.isThreadGroupCheckDisabled = isThreadGroupCheckDisabled;
+		return this;
+	}
+
 	public AresSecurityConfiguration build() {
 		validate();
 		return new AresSecurityConfiguration(testClass, testMethod, executionPath, whitelistedClassNames,
 				Optional.ofNullable(whitelistedPaths), blacklistedPaths, allowedLocalPorts, allowLocalPortsAbove,
 				excludedLocalPorts, allowedThreadCount, blacklistedPackages, whitelistedPackages, trustedPackages,
-				threadTrustScope);
+				threadTrustScope, isThreadGroupCheckDisabled);
 	}
 
 	private void validate() {

src/main/java/de/tum/in/test/api/security/ArtemisSecurityManager.java

@@ -592,6 +592,11 @@ public ThreadGroup getThreadGroup() {
 	 */
 	@SuppressWarnings("deprecation")
 	private Thread[] checkThreadGroup() {
+		if (configuration.isThreadGroupCheckDisabled()) {
+			LOG.debug("Thread group check is disabled"); //$NON-NLS-1$
+			return new Thread[0];
+		}
+
 		blockThreadCreation = true;
 		int originalCount = testThreadGroup.activeCount();
 		if (originalCount == 0)