Zhihua Deng created HIVE-27179:
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Summary: HS2 WebUI throws NPE when JspFactory loaded from
jetty-runner
Key: HIVE-27179
URL: https://issues.apache.org/jira/browse/HIVE-27179
Project: Hive
Issue Type: Bug
Components: HiveServer2
Reporter: Zhihua Deng
In HIVE-17088{*},{*} we resolved a NPE thrown from HS2 WebUI by introducing
javax.servlet.jsp-api. It works as expected when the javax.servlet.jsp-api jar
prevails jetty-runner jar, but things can be different in some environments, it
still throws NPE when opening the HS2 web:
{noformat}
java.lang.NullPointerException at
org.apache.hive.generated.hiveserver2.hiveserver2_jsp._jspService(hiveserver2_jsp.java:286)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71) at
javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at
org.eclipse.jetty.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1443)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:791) at
org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1626)
...{noformat}
The jetty-runner JspFactory.getDefaultFactory() just returns null.
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