Program: 113034
Project: 113034
Buggy source:
@Override public void setup() throws Exception {
synchronized (GeoWaveIT.MUTEX) {
    if (jettyServer == null) {
      try {
        jettyServer=new Server();
        final SocketConnector conn=new SocketConnector();
        conn.setPort(JETTY_PORT);
        conn.setAcceptQueueSize(ACCEPT_QUEUE_SIZE);
        conn.setMaxIdleTime(MAX_IDLE_TIME);
        conn.setSoLingerTime(SO_LINGER_TIME);
        jettyServer.setConnectors(new Connector[]{conn});
        final WebAppContext gsWebapp=new WebAppContext();
        gsWebapp.setContextPath(GEOSERVER_CONTEXT_PATH);
        gsWebapp.setWar(GEOSERVER_WAR_DIR);
        final WebAppClassLoader classLoader=AccessController.doPrivileged(new PrivilegedAction<WebAppClassLoader>(){
          @Override public WebAppClassLoader run(){
            try {
              return new WebAppClassLoader(gsWebapp);
            }
 catch (            final IOException e) {
              LOGGER.error("String_Node_Str",e);
              return null;
            }
          }
        }
);
        if (classLoader == null) {
          throw new IOException("String_Node_Str");
        }
        classLoader.addClassPath(System.getProperty("String_Node_Str").replace("String_Node_Str","String_Node_Str"));
        gsWebapp.setClassLoader(classLoader);
        gsWebapp.setParentLoaderPriority(true);
        final File warDir=new File(GEOWAVE_WAR_DIR);
        ServicesTestUtils.writeConfigFile(new File(warDir,"String_Node_Str"));
        final WebAppContext gwWebapp=new WebAppContext();
        gwWebapp.setContextPath(GEOWAVE_CONTEXT_PATH);
        gwWebapp.setWar(warDir.getAbsolutePath());
        jettyServer.setHandlers(new WebAppContext[]{gsWebapp,gwWebapp});
        gsWebapp.setTempDirectory(TestUtils.TEMP_DIR);
        gsWebapp.getServletContext().getContextHandler().setMaxFormContentSize(MAX_FORM_CONTENT_SIZE);
        final String jettyConfigFile=System.getProperty("String_Node_Str");
        if (jettyConfigFile != null) {
          LOGGER.info("String_Node_Str" + jettyConfigFile);
          (new XmlConfiguration(new FileInputStream(jettyConfigFile))).configure(jettyServer);
        }
        jettyServer.start();
        while (!jettyServer.isRunning() && !jettyServer.isStarted()) {
          Thread.sleep(1000);
        }
      }
 catch (      final RuntimeException e) {
        throw e;
      }
catch (      final Exception e) {
        LOGGER.error("String_Node_Str" + e.getMessage(),e);
        if (jettyServer != null) {
          try {
            jettyServer.stop();
          }
 catch (          final Exception e1) {
            LOGGER.error("String_Node_Str",e1);
          }
        }
      }
    }
  }
}

Fixed version (ground truth):
@Override public void setup() throws Exception {
synchronized (GeoWaveITRunner.MUTEX) {
    if (jettyServer == null) {
      try {
        jettyServer=new Server();
        final SocketConnector conn=new SocketConnector();
        conn.setPort(JETTY_PORT);
        conn.setAcceptQueueSize(ACCEPT_QUEUE_SIZE);
        conn.setMaxIdleTime(MAX_IDLE_TIME);
        conn.setSoLingerTime(SO_LINGER_TIME);
        jettyServer.setConnectors(new Connector[]{conn});
        final WebAppContext gsWebapp=new WebAppContext();
        gsWebapp.setContextPath(GEOSERVER_CONTEXT_PATH);
        gsWebapp.setWar(GEOSERVER_WAR_DIR);
        final WebAppClassLoader classLoader=AccessController.doPrivileged(new PrivilegedAction<WebAppClassLoader>(){
          @Override public WebAppClassLoader run(){
            try {
              return new WebAppClassLoader(gsWebapp);
            }
 catch (            final IOException e) {
              LOGGER.error("String_Node_Str",e);
              return null;
            }
          }
        }
);
        if (classLoader == null) {
          throw new IOException("String_Node_Str");
        }
        classLoader.addClassPath(System.getProperty("String_Node_Str").replace("String_Node_Str","String_Node_Str"));
        gsWebapp.setClassLoader(classLoader);
        gsWebapp.setParentLoaderPriority(true);
        final File warDir=new File(GEOWAVE_WAR_DIR);
        ServicesTestUtils.writeConfigFile(new File(warDir,"String_Node_Str"));
        final WebAppContext gwWebapp=new WebAppContext();
        gwWebapp.setContextPath(GEOWAVE_CONTEXT_PATH);
        gwWebapp.setWar(warDir.getAbsolutePath());
        jettyServer.setHandlers(new WebAppContext[]{gsWebapp,gwWebapp});
        gsWebapp.setTempDirectory(TestUtils.TEMP_DIR);
        gsWebapp.getServletContext().getContextHandler().setMaxFormContentSize(MAX_FORM_CONTENT_SIZE);
        final String jettyConfigFile=System.getProperty("String_Node_Str");
        if (jettyConfigFile != null) {
          LOGGER.info("String_Node_Str" + jettyConfigFile);
          (new XmlConfiguration(new FileInputStream(jettyConfigFile))).configure(jettyServer);
        }
        jettyServer.start();
        while (!jettyServer.isRunning() && !jettyServer.isStarted()) {
          Thread.sleep(1000);
        }
      }
 catch (      final RuntimeException e) {
        throw e;
      }
catch (      final Exception e) {
        LOGGER.error("String_Node_Str" + e.getMessage(),e);
        if (jettyServer != null) {
          try {
            jettyServer.stop();
          }
 catch (          final Exception e1) {
            LOGGER.error("String_Node_Str",e1);
          }
        }
      }
    }
  }
}