HTTP ERROR 500 java.lang.RuntimeException: org.apache.cxf.interceptor.Fault: Could not initialize class com.news.PageGenerator

URI:/
STATUS:500
MESSAGE:java.lang.RuntimeException: org.apache.cxf.interceptor.Fault: Could not initialize class com.news.PageGenerator
SERVLET:CXFServlet
CAUSED BY:java.lang.RuntimeException: org.apache.cxf.interceptor.Fault: Could not initialize class com.news.PageGenerator
CAUSED BY:org.apache.cxf.interceptor.Fault: Could not initialize class com.news.PageGenerator
CAUSED BY:java.lang.NoClassDefFoundError: Could not initialize class com.news.PageGenerator
CAUSED BY:java.lang.ExceptionInInitializerError: Exception java.lang.NullPointerException [in thread "pool-2-thread-1"]

Caused by:

java.lang.RuntimeException: org.apache.cxf.interceptor.Fault: Could not initialize class com.news.PageGenerator
	at org.apache.cxf.interceptor.AbstractFaultChainInitiatorObserver.onMessage(AbstractFaultChainInitiatorObserver.java:107)
	at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:323)
	at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:118)
	at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:208)
	at org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:223)
	at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:205)
	at org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:113)
	at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:184)
	at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doGet(AbstractHTTPServlet.java:112)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
	at org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:163)
	at org.eclipse.jetty.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1459)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799)
	at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1626)
	at com.service.filter.AbstractFilter.doFilter(AbstractFilter.java:37)
	at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
	at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
	at com.service.filter.WebFilter.doFilter(WebFilter.java:67)
	at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:201)
	at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:548)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:602)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1435)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1350)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:763)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
	at org.eclipse.jetty.server.Server.handle(Server.java:516)
	at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:388)
	at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:633)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:380)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
	at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129)
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:383)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:882)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1036)
	at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: org.apache.cxf.interceptor.Fault: Could not initialize class com.news.PageGenerator
	at org.apache.cxf.service.invoker.AbstractInvoker.createFault(AbstractInvoker.java:155)
	at org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:121)
	at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:164)
	at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:91)
	at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:58)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at org.apache.cxf.workqueue.SynchronousExecutor.execute(SynchronousExecutor.java:37)
	at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:106)
	at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:263)
	... 50 more
Caused by: java.lang.NoClassDefFoundError: Could not initialize class com.news.PageGenerator
	at com.movies.MoviePageGenerator.getMovieIndex(MoviePageGenerator.java:14)
	at com.movies.MoviePageGenerator.getMovieIndex(MoviePageGenerator.java:10)
	at com.service.RestRootWebService.getMovieIndex(RestRootWebService.java:171)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.apache.cxf.service.invoker.AbstractInvoker.performInvocation(AbstractInvoker.java:173)
	at org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:89)
	... 58 more
Caused by: java.lang.ExceptionInInitializerError: Exception java.lang.NullPointerException [in thread "pool-2-thread-1"]
	at com.news.Page.addNews(Page.java:51)
	at com.news.Page.genPage(Page.java:64)
	at com.news.PageGroup.refresh(PageGroup.java:55)
	at com.news.PageGroup.init(PageGroup.java:29)
	at com.news.PageGenerator.<clinit>(PageGenerator.java:34)
	at com.service.listener.SpecialListener$2.run(SpecialListener.java:65)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
	at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
	at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	... 1 more