Suppress Thread Leak warning on BouncyCastle daemon

Signed-off-by: Daniel Widdis <[email protected]>

Author: dbwiddis

distribution/tools/plugin-cli/src/test/java/org/opensearch/plugins/InstallPluginCommandTests.java

@@ -33,6 +33,7 @@
 package org.opensearch.plugins;
 
 import com.carrotsearch.randomizedtesting.annotations.ParametersFactory;
+import com.carrotsearch.randomizedtesting.annotations.ThreadLeakFilters;
 
 import com.google.common.jimfs.Configuration;
 import com.google.common.jimfs.Jimfs;
@@ -71,6 +72,7 @@
 import org.opensearch.env.Environment;
 import org.opensearch.env.TestEnvironment;
 import org.opensearch.semver.SemverRange;
+import org.opensearch.test.BouncyCastleThreadFilter;
 import org.opensearch.test.OpenSearchTestCase;
 import org.opensearch.test.PosixPermissionsResetter;
 import org.opensearch.test.VersionUtils;
@@ -134,6 +136,7 @@
 import static org.hamcrest.Matchers.startsWith;
 
 @LuceneTestCase.SuppressFileSystems("*")
+@ThreadLeakFilters(filters = BouncyCastleThreadFilter.class)
 public class InstallPluginCommandTests extends OpenSearchTestCase {
 
     private InstallPluginCommand skipJarHellCommand;

test/framework/src/main/java/org/opensearch/test/BouncyCastleThreadFilter.java

@@ -0,0 +1,23 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
+ */
+
+package org.opensearch.test;
+
+import com.carrotsearch.randomizedtesting.ThreadFilter;
+
+/**
+ * ThreadFilter to exclude ThreadLeak checks for BC’s global background threads
+ */
+public class BouncyCastleThreadFilter implements ThreadFilter {
+    @Override
+    public boolean reject(Thread t) {
+        String n = t.getName();
+        // Ignore BC’s global background threads
+        return "BC Disposal Daemon".equals(n) || "BC Cleanup Executor".equals(n);
+    }
+}