originalSdkRoot = System.getProperty(SDK_ROOT_PROP);
System.setProperty(SDK_ROOT_PROP, testConfig.getSdkRoot().getAbsolutePath());
String address = "127.0.0.1";
SdkInfo.includeTestingJarOnSharedPath(true);
server = new DevAppServerFactory().createDevAppServer(testConfig.getAppDir(),
testConfig.getWebXml(), testConfig.getAppEngineWebXml(), address, 0, true,
testConfig.installSecurityManager(), testConfig.getClasspath());
try {
server.start();
System.setProperty(testConfig.getPortSystemProperty(), Integer.toString(server.getPort()));