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diff --git a/main/src/test/java/org/onap/policy/pdpx/main/CommonRest.java b/main/src/test/java/org/onap/policy/pdpx/main/CommonRest.java
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+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.pdpx.main;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.security.SecureRandom;
+import javax.net.ssl.SSLContext;
+import javax.ws.rs.client.Client;
+import javax.ws.rs.client.ClientBuilder;
+import javax.ws.rs.client.Invocation;
+import javax.ws.rs.client.WebTarget;
+import javax.ws.rs.core.MediaType;
+import org.glassfish.jersey.client.authentication.HttpAuthenticationFeature;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.onap.policy.common.utils.network.NetworkUtil;
+import org.onap.policy.common.utils.resources.ResourceUtils;
+import org.onap.policy.pdpx.main.rest.XacmlPdpStatisticsManager;
+import org.onap.policy.pdpx.main.startstop.Main;
+import org.onap.policy.pdpx.main.startstop.XacmlPdpActivator;
+import org.powermock.reflect.Whitebox;
+
+/**
+ * Common base class for REST service tests.
+ */
+public class CommonRest {
+    private static final String KEYSTORE = System.getProperty("user.dir") + "/src/test/resources/ssl/policy-keystore";
+
+    /**
+     * Full path to the config file.
+     */
+    public static final String CONFIG_FILE;
+
+    /**
+     * Path corresponding to {@link #CONFIG_FILE}.
+     */
+    private static final Path CONFIG_PATH;
+
+    /**
+     * Contents read from the "standard" config file, which still contains ${xxx}
+     * place-holders.
+     */
+    private static final String STD_CONFIG;
+
+    /**
+     * Port that was last allocated for the server.
+     */
+    protected static int port;
+
+    /**
+     * "Main" that was last started.
+     */
+    private static Main main;
+
+    /**
+     * Records the "alive" state of the activator while it's temporarily updated by
+     * various junit tests. The {@link #tearDown()} method restores the "alive" state back
+     * to this value.
+     */
+    private boolean activatorWasAlive;
+
+    static {
+        try {
+            File file = new File(ResourceUtils.getFilePath4Resource("parameters/XacmlPdpConfigParameters_Std.json"));
+            STD_CONFIG = new String(Files.readAllBytes(file.toPath()), StandardCharsets.UTF_8);
+
+            file = new File(file.getParentFile(), "Test_XacmlPdpConfigParameters.json");
+            file.deleteOnExit();
+
+            CONFIG_FILE = file.getAbsolutePath();
+            CONFIG_PATH = new File(CONFIG_FILE).toPath();
+
+        } catch (IOException e) {
+            throw new ExceptionInInitializerError(e);
+        }
+    }
+
+    /**
+     * Configures system properties and creates a JSON config file.
+     *
+     * @throws Exception if an error occurs
+     */
+    @BeforeClass
+    public static void setUpBeforeClass() throws Exception {
+        System.setProperty("javax.net.ssl.keyStore", KEYSTORE);
+        System.setProperty("javax.net.ssl.keyStorePassword", "Pol1cy_0nap");
+
+        System.setProperty("org.eclipse.jetty.util.log.class", "org.eclipse.jetty.util.log.StdErrLog");
+        System.setProperty("org.eclipse.jetty.LEVEL", "OFF");
+
+        writeJsonConfig();
+
+        final String[] xacmlPdpConfigParameters = {"-c", CommonRest.CONFIG_FILE, "-p", "parameters/topic.properties"};
+        main = new Main(xacmlPdpConfigParameters);
+
+        if (!NetworkUtil.isTcpPortOpen("localhost", port, 20, 1000L)) {
+            throw new IllegalStateException("server is not listening on port " + port);
+        }
+    }
+
+    /**
+     * Stops the "Main".
+     */
+    @AfterClass
+    public static void tearDownAfterClass() {
+        stopMain();
+    }
+
+    /**
+     * Resets the statistics.
+     */
+    @Before
+    public void setUp() {
+        activatorWasAlive = XacmlPdpActivator.getCurrent().isAlive();
+        XacmlPdpStatisticsManager.getCurrent().resetAllStatistics();
+    }
+
+    /**
+     * Restores the "alive" status of the activator.
+     */
+    @After
+    public void tearDown() {
+        markActivator(activatorWasAlive);
+    }
+
+    /**
+     * Stops the "main".
+     */
+    protected static void stopMain() {
+        main.shutdown();
+    }
+
+    /**
+     * Writes a JSON config file, substituting an allocated port number for occurrences of
+     * "${port}".
+     *
+     * @return the allocated server port
+     * @throws IOException if the config file cannot be created
+     */
+    public static int writeJsonConfig() throws IOException {
+        port = NetworkUtil.allocPort();
+
+        String config = STD_CONFIG.replace("${port}", String.valueOf(port));
+        Files.write(CONFIG_PATH, config.getBytes(StandardCharsets.UTF_8));
+
+        return port;
+    }
+
+    /**
+     * Sends an HTTPS request to an endpoint of the PDP's REST API.
+     *
+     * @param endpoint target endpoint
+     * @return a request builder
+     * @throws Exception if an error occurs
+     */
+    protected Invocation.Builder sendHttpsRequest(final String endpoint) throws Exception {
+        // always trust the certificate
+        final SSLContext sc = SSLContext.getInstance("TLSv1.2");
+        sc.init(null, NetworkUtil.getAlwaysTrustingManager(), new SecureRandom());
+
+        // always trust the host name
+        final ClientBuilder clientBuilder =
+                        ClientBuilder.newBuilder().sslContext(sc).hostnameVerifier((host, session) -> true);
+
+        final Client client = clientBuilder.build();
+        final HttpAuthenticationFeature feature = HttpAuthenticationFeature.basic("healthcheck", "zb!XztG34");
+        client.register(feature);
+
+        final WebTarget webTarget = client.target("https://localhost:" + port + "/policy/pdpx/v1/" + endpoint);
+
+        return webTarget.request(MediaType.APPLICATION_JSON);
+    }
+
+    /**
+     * Mark the activator as dead, but leave its REST server running.
+     */
+    protected void markActivatorDead() {
+        markActivator(false);
+    }
+
+    /**
+     * Changes the internal "alive" status of the activator to a new value.
+     *
+     * @param newAlive the new "alive" status
+     */
+    private void markActivator(boolean newAlive) {
+        Object manager = Whitebox.getInternalState(XacmlPdpActivator.getCurrent(), "serviceManager");
+        Whitebox.setInternalState(manager, "running", newAlive);
+    }
+}