Use default memory lock setting in testing (#40730)

Today we are running our internal tests with bootstrap.memory_lock
enabled. This is not out default setting, and not the recommended
value. This commit switches to use the default value, which is to not
enable bootstrap.memory_lock.

test/framework/src/main/java/org/elasticsearch/bootstrap/BootstrapForTesting.java

@@ -20,9 +20,8 @@
 package org.elasticsearch.bootstrap;
 
 import com.carrotsearch.randomizedtesting.RandomizedRunner;
-
-import org.apache.logging.log4j.Logger;
 import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 import org.apache.lucene.util.LuceneTestCase;
 import org.elasticsearch.common.Booleans;
 import org.elasticsearch.common.Strings;
@@ -30,6 +29,7 @@ import org.elasticsearch.common.SuppressForbidden;
 import org.elasticsearch.common.io.FileSystemUtils;
 import org.elasticsearch.common.io.PathUtils;
 import org.elasticsearch.common.network.IfConfig;
+import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.plugins.PluginInfo;
 import org.elasticsearch.secure_sm.SecureSM;
 import org.junit.Assert;
@@ -79,8 +79,10 @@ public class BootstrapForTesting {
         }
 
         // just like bootstrap, initialize natives, then SM
+        final boolean memoryLock =
+                BootstrapSettings.MEMORY_LOCK_SETTING.get(Settings.EMPTY); // use the default bootstrap.memory_lock setting
         final boolean systemCallFilter = Booleans.parseBoolean(System.getProperty("tests.system_call_filter", "true"));
-        Bootstrap.initializeNatives(javaTmpDir, true, systemCallFilter, true);
+        Bootstrap.initializeNatives(javaTmpDir, memoryLock, systemCallFilter, true);
 
         // initialize probes
         Bootstrap.initializeProbes();