Method public java.util.List com.risingsun.cms.service.CMSTemplateEngine.documents(java.lang.String) threw an exception when invoked on com.risingsun.cms.service.CMSTemplateEngine@1ccb92d6 The problematic instruction: ---------- ==> list cms.documents("channel=铁力镇动态|双丰镇动态|朗乡镇动态|桃山镇动态|王扬乡动态|年丰乡动态|工农乡动态|神树镇动态|日月峡镇动态,num=12") as document [on line 164, column 73 in 新闻资讯20210107.htm] ---------- Java backtrace for programmers: ---------- freemarker.template.TemplateModelException: Method public java.util.List com.risingsun.cms.service.CMSTemplateEngine.documents(java.lang.String) threw an exception when invoked on com.risingsun.cms.service.CMSTemplateEngine@1ccb92d6 at freemarker.ext.beans.OverloadedMethodModel.exec(OverloadedMethodModel.java:134) at freemarker.core.MethodCall._getAsTemplateModel(MethodCall.java:93) at freemarker.core.Expression.getAsTemplateModel(Expression.java:89) at freemarker.core.IteratorBlock.accept(IteratorBlock.java:94) at freemarker.core.Environment.visit(Environment.java:208) at freemarker.core.MixedContent.accept(MixedContent.java:92) at freemarker.core.Environment.visit(Environment.java:208) at freemarker.core.Environment.process(Environment.java:188) at freemarker.template.Template.process(Template.java:232) at com.risingsun.cms.service.HTMLGenerator.generateHTML(HTMLGenerator.java:48) at com.risingsun.cms.service.impl.PublishTaskServiceImpl.publishGeneral(PublishTaskServiceImpl.java:512) at sun.reflect.GeneratedMethodAccessor774.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:301) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) at com.sun.proxy.$Proxy20.publishGeneral(Unknown Source) at com.risingsun.cms.service.PublishGeneralTask.execute(PublishGeneralTask.java:34) at com.risingsun.edp.core.utils.threadpool.thread.WorkThread.run(WorkThread.java:79) Caused by: java.lang.NullPointerException