Trivially allow some packages

Author: prdoyle

test/framework/src/main/java/org/elasticsearch/entitlement/runtime/policy/TestPolicyManager.java

@@ -85,6 +85,18 @@ boolean isTriviallyAllowed(Class<?> requestingClass) {
         if (isTestFrameworkClass(requestingClass)) {
             return true;
         }
+        if ("org.elasticsearch.jdk".equals(requestingClass.getPackageName())) {
+            // PluginsLoaderTests, PluginsServiceTests, PluginsUtilsTests
+            return true;
+        }
+        if ("org.elasticsearch.nativeaccess".equals(requestingClass.getPackageName())) {
+            // UberModuleClassLoaderTests
+            return true;
+        }
+        if (requestingClass.getPackageName().startsWith("org.elasticsearch.plugins")) {
+            // PluginsServiceTests, NamedComponentReaderTests
+            return true;
+        }
         if (isTriviallyAllowingTestCode && isTestCode(requestingClass)) {
             return true;
         }
@@ -133,6 +145,8 @@ private boolean isTestCode(Class<?> requestingClass) {
     private static final String[] TEST_FRAMEWORK_PACKAGE_PREFIXES = {
         "org.gradle",
 
+        "org.jcodings", // A library loaded with SPI that tries to create a CharsetProvider
+
         // We shouldn't really need the rest of these. They should be discovered on the testOnlyClasspath.
         "com.carrotsearch.randomizedtesting",
         "com.sun.tools.javac",