KB-1796 Tomcat fails to deploy Appian with "java.lang.ClassNotFoundException: com.mysql.jdbc.Driver" error

Jordan Horwat — Mon, 19 Nov 2018 21:11:43 GMT

Current Revision posted to Appian Knowledge Base by Jordan Horwat on 11/19/2018 9:11:43 PM

Symptoms

Tomcat fails with the following error in <APPIAN_HOME>/logs/tomcat-stdOut.log:

WARNING [localhost-startStop-1] org.apache.naming.NamingContext.lookup Unexpected exception resolving reference
java.sql.SQLException: Cannot load JDBC driver class 'com.mysql.jdbc.Driver'
at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createConnectionFactory(BasicDataSource.java:2203)
.
.
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

Cause

The database driver was not copied over to <TOMCAT_HOME>\tomcat\apache-tomcat\lib\.

Action

Copy the database driver to <TOMCAT_HOME>\tomcat\apache-tomcat\lib\ as discussed in this step of the Appian installation guide.

Affected Versions

This article applies to Appian 18.3 and later.

Last Reviewed: November 2018

Tags: Tomcat, database, installation, infrastructure

DRAFT KB-XXXX Tomcat fails to deploy Appian with "java.lang.ClassNotFoundException: com.mysql.jdbc.Driver" error

Tejas Kargutkar — Mon, 19 Nov 2018 19:27:30 GMT

Revision 1 posted to Appian Knowledge Base by Tejas Kargutkar on 11/19/2018 7:27:30 PM

Symptoms

Tomcat fails with the following error in <APPIAN_HOME>/logs/tomcat-stdOut.log:

WARNING [localhost-startStop-1] org.apache.naming.NamingContext.lookup Unexpected exception resolving reference
java.sql.SQLException: Cannot load JDBC driver class 'com.mysql.jdbc.Driver'
at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createConnectionFactory(BasicDataSource.java:2203)

Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

Cause

The database driver was not copied over to \tomcat\apache-tomcat\lib\ as discussed in this step of installing Appian.

Action

Copy the database driver to \tomcat\apache-tomcat\lib\ as discussed in this step of installing Appian.

Affected Versions

This article applies to Appian 18.3 and later.

Last Reviewed: November 2018

Tags: Tomcat, database, infrastructure

DRAFT KB-XXXX Tomcat fails to deploy Appian with "java.lang.ClassNotFoundException: com.mysql.jdbc.Driver" error

Jordan Horwat — Mon, 19 Nov 2018 15:41:35 GMT

Revision 5 posted to Appian Knowledge Base by Jordan Horwat on 11/19/2018 3:41:35 PM

Symptoms

Tomcat fails with the following error in <APPIAN_HOME>/logs/tomcat-stdOut.log:

WARNING [localhost-startStop-1] org.apache.naming.NamingContext.lookup Unexpected exception resolving reference
java.sql.SQLException: Cannot load JDBC driver class 'com.mysql.jdbc.Driver'
at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createConnectionFactory(BasicDataSource.java:2203)
.
.
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

Cause

The database driver was not copied over to <TOMCAT_HOME>\tomcat\apache-tomcat\lib\.

Action

Copy the database driver to <TOMCAT_HOME>\tomcat\apache-tomcat\lib\ as discussed in this step of the Appian installation guide.

Affected Versions

This article applies to Appian 18.3 and later.

Last Reviewed: November 2018

Tags: Tomcat, database, infrastructure

DRAFT KB-XXXX Tomcat fails to deploy Appian with "java.lang.ClassNotFoundException: com.mysql.jdbc.Driver" error

Tejas Kargutkar — Mon, 19 Nov 2018 14:53:49 GMT

Revision 4 posted to Appian Knowledge Base by Tejas Kargutkar on 11/19/2018 2:53:49 PM

Symptoms

Tomcat fails with the following error in <APPIAN_HOME>/logs/tomcat-stdOut.log:

WARNING [localhost-startStop-1] org.apache.naming.NamingContext.lookup Unexpected exception resolving reference
java.sql.SQLException: Cannot load JDBC driver class 'com.mysql.jdbc.Driver'
at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createConnectionFactory(BasicDataSource.java:2203)
.
.
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

Cause

The database driver was not copied over to <TOMCAT_HOME>\tomcat\apache-tomcat\lib\

Action

Copy the database driver to <TOMCAT_HOME>\tomcat\apache-tomcat\lib\ as discussed in this step of installing Appian.

Affected Versions

This article applies to Appian 18.3 and later.

Last Reviewed: November 2018

Tags: Tomcat, database, infrastructure

DRAFT KB-XXXX Tomcat fails to deploy Appian with "java.lang.ClassNotFoundException: com.mysql.jdbc.Driver" error

Tejas Kargutkar — Mon, 19 Nov 2018 14:53:34 GMT

Revision 3 posted to Appian Knowledge Base by Tejas Kargutkar on 11/19/2018 2:53:34 PM

Symptoms

Tomcat fails with the following error in <APPIAN_HOME>/logs/tomcat-stdOut.log:

WARNING [localhost-startStop-1] org.apache.naming.NamingContext.lookup Unexpected exception resolving reference
java.sql.SQLException: Cannot load JDBC driver class 'com.mysql.jdbc.Driver'
at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createConnectionFactory(BasicDataSource.java:2203)
.
.
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

Cause

The database driver was not copied over to <TOMCAT_HOME>\tomcat\apache-tomcat\lib\.

Action

Copy the database driver to <TOMCAT_HOME>\tomcat\apache-tomcat\lib\ as discussed in this step of installing Appian.

Affected Versions

This article applies to Appian 18.3 and later.

Last Reviewed: November 2018

Tags: Tomcat, database, infrastructure

DRAFT KB-XXXX Tomcat fails to deploy Appian with "java.lang.ClassNotFoundException: com.mysql.jdbc.Driver" error

Tejas Kargutkar — Mon, 19 Nov 2018 14:53:16 GMT

Revision 2 posted to Appian Knowledge Base by Tejas Kargutkar on 11/19/2018 2:53:16 PM

Symptoms

Tomcat fails with the following error in <APPIAN_HOME>/logs/tomcat-stdOut.log:

WARNING [localhost-startStop-1] org.apache.naming.NamingContext.lookup Unexpected exception resolving reference
 java.sql.SQLException: Cannot load JDBC driver class 'com.mysql.jdbc.Driver'
 at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createConnectionFactory(BasicDataSource.java:2203)
.
.
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver

Cause

The database driver was not copied over to <TOMCAT_HOME>\tomcat\apache-tomcat\lib\.

Action

Copy the database driver to <TOMCAT_HOME>\tomcat\apache-tomcat\lib\ as discussed in this step of installing Appian.

Affected Versions

This article applies to Appian 18.3 and later.

Last Reviewed: November 2018

Tags: Tomcat, database, infrastructure