Michigan State University

Apache Tomcat/7.0.52 (Ubuntu) - Error report

HTTP Status 500 - javax.servlet.ServletException: javax.servlet.jsp.JspException:


type Exception report

message javax.servlet.ServletException: javax.servlet.jsp.JspException:

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: javax.servlet.ServletException: javax.servlet.jsp.JspException: 
	SELECT
		keyterm
	FROM
		keyterm
	WHERE
		id = ?
	
: Communications link failure

The last packet successfully received from the server was 2,448,249 milliseconds ago.  The last packet sent successfully to the server was 0 milliseconds ago.
	org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:549)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:455)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:727)

root cause

javax.servlet.ServletException: javax.servlet.jsp.JspException: 
	SELECT
		keyterm
	FROM
		keyterm
	WHERE
		id = ?
	
: Communications link failure

The last packet successfully received from the server was 2,448,249 milliseconds ago.  The last packet sent successfully to the server was 0 milliseconds ago.
	org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:912)
	org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:845)
	org.apache.jsp.exhibits.sliker.keytermpieces_jsp._jspService(keytermpieces_jsp.java:683)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:727)

root cause

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 2,448,249 milliseconds ago.  The last packet sent successfully to the server was 0 milliseconds ago.
	sun.reflect.GeneratedConstructorAccessor56.newInstance(Unknown Source)
	sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	java.lang.reflect.Constructor.newInstance(Constructor.java:526)
	com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
	com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1129)
	com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3720)
	com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3609)
	com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4160)
	com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2617)
	com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2778)
	com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2825)
	com.mysql.jdbc.LoadBalancedMySQLConnection.execSQL(LoadBalancedMySQLConnection.java:158)
	com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2156)
	com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2313)
	org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:96)
	org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:96)
	org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.doEndTag(QueryTagSupport.java:224)
	org.apache.jsp.exhibits.sliker.keytermpieces_jsp._jspx_meth_sql_005fquery_005f0(keytermpieces_jsp.java:833)
	org.apache.jsp.exhibits.sliker.keytermpieces_jsp._jspService(keytermpieces_jsp.java:550)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:727)

root cause

java.io.EOFException: Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost.
	com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3166)
	com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3620)
	com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3609)
	com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4160)
	com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2617)
	com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2778)
	com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2825)
	com.mysql.jdbc.LoadBalancedMySQLConnection.execSQL(LoadBalancedMySQLConnection.java:158)
	com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2156)
	com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2313)
	org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:96)
	org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:96)
	org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.doEndTag(QueryTagSupport.java:224)
	org.apache.jsp.exhibits.sliker.keytermpieces_jsp._jspx_meth_sql_005fquery_005f0(keytermpieces_jsp.java:833)
	org.apache.jsp.exhibits.sliker.keytermpieces_jsp._jspService(keytermpieces_jsp.java:550)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:727)

note The full stack trace of the root cause is available in the Apache Tomcat/7.0.52 (Ubuntu) logs.


Apache Tomcat/7.0.52 (Ubuntu)