java.lang.NullPointerException: This exception has no message.

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via Stack Overflow by Pier-Alexandre Bouchard
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This exception has no message.
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This exception has no message.
at org.apache.catalina.connector.Request.notifyAttributeAssigned(
at org.apache.catalina.connector.Request.access$000(
at org.apache.catalina.connector.Request$3.set(
at org.apache.catalina.connector.Request.setAttribute(
at org.apache.catalina.connector.RequestFacade.setAttribute(
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
at org.apache.catalina.core.ApplicationFilterChain.doFilter(
at org.apache.catalina.core.StandardWrapperValve.invoke(
at org.apache.catalina.core.StandardContextValve.invoke(
at com.avaya.acc.base.web.valves.StingerValve.invoke(
at org.apache.catalina.core.StandardHostValve.invoke(
at org.apache.catalina.valves.ErrorReportValve.invoke(
at com.avaya.acc.base.tomcat.MCPTomcatAccessLogValve.invoke(
at org.apache.coyote.http11.AbstractHttp11Processor.process(
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(
at java.util.concurrent.ThreadPoolExecutor.runWorker(

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