Method public java.util.List com.highcom.cms.service.CMSTemplateEngine.documents(java.lang.String) threw an exception when invoked on com.highcom.cms.service.CMSTemplateEngine@b05283
The problematic instruction:
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==> list cms.documents("channel=${cms.getChannel().parent.getName()}_学科带头人,num=11") as doc [on line 34, column 1 in cgzs.htm]
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Java backtrace for programmers:
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freemarker.template.TemplateModelException: Method public java.util.List com.highcom.cms.service.CMSTemplateEngine.documents(java.lang.String) threw an exception when invoked on com.highcom.cms.service.CMSTemplateEngine@b05283
	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.highcom.cms.service.HTMLGenerator.generateHTML(HTMLGenerator.java:62)
	at com.highcom.cms.service.impl.PublishTaskServiceImpl.publishGeneral(PublishTaskServiceImpl.java:450)
	at sun.reflect.GeneratedMethodAccessor902.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	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 $Proxy34.publishGeneral(Unknown Source)
	at com.highcom.cms.service.PublishGeneralTask.execute(PublishGeneralTask.java:50)
	at com.highcom.edp.core.utils.threadpool.thread.WorkThread.run(WorkThread.java:77)
Caused by: java.lang.NullPointerException
	at com.highcom.cms.service.CMSTemplateEngine.documents(CMSTemplateEngine.java:136)
	at sun.reflect.GeneratedMethodAccessor903.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at freemarker.ext.beans.BeansWrapper.invokeMethod(BeansWrapper.java:880)
	at freemarker.ext.beans.OverloadedMethodModel.exec(OverloadedMethodModel.java:111)
	... 24 more