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javax.servlet.ServletException: java.lang.NoClassDefFoundError: com/mysql/jdbc/Driver

I am trying to run simple code to connect with mysql. I m using eclipse and tomcat.
I have added mysql-connector-java-8.0.1.9.jar in Libraries:
Libraries-->mysql-->mysql-connector-java-8.0.1.9.jar
I have been at it for several hours adding and removing mysql-connector-java-8.0.1.9.jar to build path cannot get it running. Please help. Do I need to add any thing in run configuration??
This is the error on eclipse browser:
HTTP Status 500 – Internal Server Error
Type Exception Report
Message javax.servlet.ServletException: java.lang.NoClassDefFoundError: com/mysql/jdbc/Driver
Description The server encountered an unexpected condition that prevented it from fulfilling the request.
Exception
org.apache.jasper.JasperException: javax.servlet.ServletException: java.lang.NoClassDefFoundError: com/mysql/jdbc/Driver
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:599)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:500)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
Root Cause
javax.servlet.ServletException: java.lang.NoClassDefFoundError: com/mysql/jdbc/Driver
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:917)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:846)
org.apache.jsp.regCheck_jsp._jspService(regCheck_jsp.java:129)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:477)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
Root Cause
java.lang.NoClassDefFoundError: com/mysql/jdbc/Driver
compute.DB.con(DB.java:21)
org.apache.jsp.regCheck_jsp._jspService(regCheck_jsp.java:100)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:477)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
Root Cause
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1951)
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1794)
compute.DB.con(DB.java:21)
org.apache.jsp.regCheck_jsp._jspService(regCheck_jsp.java:100)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:477)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
Note The full stack trace of the root cause is available in the server logs.
This is the output in console:
> Mar 16, 2020 4:57:27 PM org.apache.catalina.core.StandardContext reload
INFO: Reloading Context with name [/Mysql] has started
Mar 16, 2020 4:57:27 PM org.apache.catalina.core.StandardContext reload
INFO: Reloading Context with name [/Mysql] is completed
Mar 16, 2020 4:57:41 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [jsp] in context with path [/Mysql] threw exception [javax.servlet.ServletException: java.lang.NoClassDefFoundError: com/mysql/jdbc/Driver] with root cause
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1951)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1794)
at compute.DB.con(DB.java:21)
at org.apache.jsp.regCheck_jsp._jspService(regCheck_jsp.java:100)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:71)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:477)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:492)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:165)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:1025)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:452)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1195)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:654)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:319)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:834)
Try - 05 Trying to establish con in regCheck.jsp
Con method called Try 5A
Try 05a - Trying to connect
This is DB.java:
package compute;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;
import java.sql.*;
public class DB {
final static String DB_URL = "jdbc:mysql://localhost:3306/new";
final static String USER = "admin";
final static String PASS = "admin";
public static Connection con() {
System.out.println("Con method called Try 5A");
Connection con;
try {
System.out.println("Try 05a - Trying to connect");
DriverManager.registerDriver(new com.mysql.jdbc.Driver());
con = DriverManager.getConnection(DB_URL, USER, PASS);
System.out.println("Try 05a- con established ");
return con;
}catch(Exception e) {
System.out.println(e);
return null;
}
}
public static Statement st() {
Statement stmt;
try {
stmt=DB.con().createStatement();
return null;
}catch(Exception e) {
System.out.println(e);
return null;
}
}
}
This is regCheck.jsp:
<%#page import="java.sql.Connection" %>
<%#page import="compute.DB" %>
<%#page import="java.sql.PreparedStatement" %>
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<%
String user = request.getParameter("username");
System.out.println("Try - 05 Trying to establish con in regCheck.jsp");
Connection con = DB.con();
System.out.println("Preparing Statement in regCheck.jsp");
PreparedStatement p = con.prepareStatement("Insert into register(username)values(?)");
p.setString(1,user);
System.out.println("user::" +user);
int R = p.executeUpdate();
if(R!=0)
response.sendRedirect("index.html");
else
response.sendRedirect("register.jsp");
%>
</body>
</html>

The JDBC driver library is missing from your runtime CLASSPATH i.e. the CLASSPATH where Tomcat looks for the required classes in order to execute your compiled code.

I added mysql-connector-java-8.0.19.jar to Tomcat 7.0/Lib and now it's working find.
I removed it from Library and everywhere and it works.
I created new project with the same code and without adding mysql-connector-java-8.0.19.jar to any library or build path, it's running fine.
I found the instruction to add to tomcat somewhere on youtube.

Trying to access database with jboss esb and java

I have a problem to get connection to my database via java and jboss esb 4.2. I have build a .war package and deployed it on the jboss server. But i am gettin error while trying to connect to the database.
Java Method
Connection conn = null;
PreparedStatement stmt = null;
ResultSet rs = null;
try {
Context initContext = new InitialContext();
Context envContext = (Context) initContext.lookup("java:/comp/env");
DataSource ds = (DataSource) envContext.lookup("jdbc/VINService");
String sql = "SELECT ...";
conn = ds.getConnection();
stmt = conn.prepareStatement(sql);
...
jboss-web.xml
<resource-ref>
<res-ref-name>jdbc/VINService</res-ref-name>
<jndi-name>java:jdbc/VINService</jndi-name>
<res-type>javax.sql.DataSource</res-type>
</resource-ref>
web.xml
<resource-ref>
<description>VINService</description>
<res-ref-name>jdbc/VINService</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
VIN_Service-ds.xml
<?xml version="1.0" encoding="UTF-8"?>
<datasources>
<local-tx-datasource>
<jndi-name>jdbc/VINService</jndi-name>
<connection-url>jdbc:mysql://url/db?autoReconnect=true</connection-url>
<driver-class>com.mysql.jdbc.Driver</driver-class>
<user-name>name</user-name>
<password>password</password>
<min-pool-size>5</min-pool-size>
<max-pool-size>20</max-pool-size>
<idle-timeout-minutes>0</idle-timeout-minutes>
<exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter</exception-sorter-class-name>
<check-valid-connection-sql>SELECT 1 FROM vehiclecache limit 1</check-valid-connection-sql>
</local-tx-datasource>
</datasources>
What am i doing wrong? I am getting Nullpointer Error at
conn = ds.getConnection()
so it isn't finding the datasource.
Can anybody help me?

Datasource Connection with Standalone Java Application

I have been able to configure my datasource in a web app but am unable to replicate that in a stand alone app.
Datasource is configured as server.xml file in tomcat server in config folder. How can I load the datasource from this file in a stand alone Java application?
If I try with
Context initialContext = new InitialContext();
DataSource dataSource = (DataSource) csDBEnvContext.lookup(DATASOURCE_NAME);
Its gives the following exception:
javax.naming.NoInitialContextException: Need to specify class name in
environment or system property, or as an applet parameter, or in an
application resource file: java.naming.factory.initial
Same code when tried using web application is executed fine.
username, password are redacted since it is production environment.
Here is the jdbc.java :
public static void main(String[] args) throws Exception {
Context initContext = new InitialContext();
Context envContext = (Context) initContext.lookup("java:comp/env");
DataSource ds = (DataSource) envContext.lookup("jdbc/haryana");
//Connection conn = ds.getConnection();
try {
DatabaseMetaData dataSource = null;
conn = ds.getConnection();
} catch (Exception e) {
System.out.println("Exception while getting local JDBC Connection getLogsJdbcConnection(): " + e.getMessage());
}
Context.xml :
<Context crossContext="true">
<WatchedResource>WEB-INF/web.xml</WatchedResource>
<Resource name="jdbc/haryana" auth="Container"
type="javax.sql.DataSource"
maxActive="100" maxIdle="30" maxWait="10000"
username="postgres"
password="postgres"
driverClassName="org.postgresql.Driver"
url="jdbc:postgresql://localhost:5432/fps_ws_db_feb17"/>
</Context>
web.xml file :
<resource-ref>
<description>Database connection resource</description>
<res-ref-name>jdbc/haryana</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
can anyone please help me to rectify the this Exception.

Access encrypted database from H2 console

I want to store my H2 database as an encrypted file and access its web interface.
I configured H2 database so that I can access web interface to manipulate the database under console/db address.
When I do not use encryption everything works fine.
When I add CIPHER=AES to db.url I cannot log into the database and get below exception:
File corrupted while reading record: null. Possible solution: use the recovery tool [90030-191] 90030/90030 (Help)
org.h2.jdbc.JdbcSQLException: Uszkodzenie pliku podczas wczytywania rekordu: null
File corrupted while reading record: null. Possible solution: use the recovery tool [90030-191]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)
at org.h2.message.DbException.get(DbException.java:168)
at org.h2.mvstore.db.MVTableEngine$Store.convertIllegalStateException(MVTableEngine.java:195)
at org.h2.mvstore.db.MVTableEngine$Store.open(MVTableEngine.java:167)
at org.h2.mvstore.db.MVTableEngine.init(MVTableEngine.java:99)
at org.h2.engine.Database.getPageStore(Database.java:2460)
at org.h2.engine.Database.open(Database.java:692)
at org.h2.engine.Database.openDatabase(Database.java:270)
at org.h2.engine.Database.<init>(Database.java:264)
at org.h2.engine.Engine.openSession(Engine.java:65)
at org.h2.engine.Engine.openSession(Engine.java:175)
at org.h2.engine.Engine.createSessionAndValidate(Engine.java:153)
at org.h2.engine.Engine.createSession(Engine.java:136)
at org.h2.engine.Engine.createSession(Engine.java:28)
at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:349)
at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:107)
at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:91)
at org.h2.Driver.connect(Driver.java:72)
at org.h2.server.web.WebServer.getConnection(WebServer.java:735)
at org.h2.server.web.WebApp.login(WebApp.java:955)
at org.h2.server.web.WebApp.process(WebApp.java:211)
at org.h2.server.web.WebApp.processRequest(WebApp.java:170)
at org.h2.server.web.WebServlet.doGet(WebServlet.java:125)
at org.h2.server.web.WebServlet.doPost(WebServlet.java:162)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:522)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1095)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:672)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1502)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1458)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalStateException: Store header is corrupt: nio:/home/robak/db/adzfo.mv.db [1.4.191/6]
at org.h2.mvstore.DataUtils.newIllegalStateException(DataUtils.java:773)
at org.h2.mvstore.MVStore.readStoreHeader(MVStore.java:603)
at org.h2.mvstore.MVStore.<init>(MVStore.java:353)
at org.h2.mvstore.MVStore$Builder.open(MVStore.java:2888)
at org.h2.mvstore.db.MVTableEngine$Store.open(MVTableEngine.java:154)
... 47 more
Database Configuration
db.driver=org.h2.Driver
db.url=jdbc:h2:file:~/db/app_name;AUTO_SERVER=TRUE;CIPHER=AES
db.username=user
db.password=password
Servlet Context
private void configureDatabaseConsole(ServletContext servletContext) {
ServletRegistration.Dynamic h2Servlet = servletContext.addServlet("h2console", WebServlet.class);
h2Servlet.setLoadOnStartup(2);
h2Servlet.addMapping("/console/db/*");
}
Data source
#Bean
public DataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(getProperty(DRIVER));
dataSource.setUrl(getProperty(URL));
dataSource.setUsername(getProperty(USERNAME));
dataSource.setPassword(FILE_PASSWORD + " " + getProperty(PASSWORD));
return dataSource;
}
What should I do to have an encrypted database as a file on a hard drive and to access its console via web interface?

Are you sure you using the right password. Quoting from the H2 documentation File Encryption
The encryption algorithm is set in the database URL, and the file
password is specified in the password field, before the user
password. A single space separates the file password and the user
password; the file password itself may not contain spaces. File
passwords and user passwords are case sensitive. Here is an example
to connect to a password-encrypted database:
Class.forName("org.h2.Driver");
String url = "jdbc:h2:~/test;CIPHER=AES";
String user = "sa";
String pwds = "filepwd userpwd";
conn = DriverManager.
getConnection(url, user, pwds);
If you don't provide the correct password you won't get a connection.

Tomcat war deployed via IntelliJ IDEA 13 is returning error

I'm getting the following error deploying my first WAR file in IntelliJ. It is a local issue, supposedly, as this is just a WAR file we deploy to test our setup.
All 80 Maven tests are passing, but when I browse to the web app, I get this error:
java.lang.IllegalArgumentException: javax.naming.NameNotFoundException: Name [jdbc/ipam] is not bound in this Context. Unable to find [jdbc].
com.myapp1.ipam.rest.JaxRsApplication.<init>(JaxRsApplication.java:26)
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
java.lang.reflect.Constructor.newInstance(Constructor.java:526)
org.glassfish.hk2.utilities.reflection.ReflectionHelper.makeMe(ReflectionHelper.java:1104)
org.jvnet.hk2.internal.Utilities.justCreate(Utilities.java:902)
org.jvnet.hk2.internal.ServiceLocatorImpl.create(ServiceLocatorImpl.java:872)
org.jvnet.hk2.internal.ServiceLocatorImpl.createAndInitialize(ServiceLocatorImpl.java:964)
org.jvnet.hk2.internal.ServiceLocatorImpl.createAndInitialize(ServiceLocatorImpl.java:956)
org.glassfish.jersey.server.ApplicationHandler.createApplication(ApplicationHandler.java:336)
org.glassfish.jersey.server.ApplicationHandler.<init>(ApplicationHandler.java:315)
org.glassfish.jersey.server.ApplicationHandler.<init>(ApplicationHandler.java:285)
org.glassfish.jersey.servlet.WebComponent.<init>(WebComponent.java:310)
org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:170)
org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:358)
javax.servlet.GenericServlet.init(GenericServlet.java:158)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:745)
This seems to be where the problem lies:
public JaxRsApplication() {
DataSource datasource;
try {
Context initCtx = new InitialContext();
Context envCtx = (Context) initCtx.lookup("java:comp/env");
datasource = (DataSource) envCtx.lookup("jdbc/ipam");
} catch (NamingException e) {
throw new IllegalArgumentException(e);
}
this.init(new SystemConfiguration(datasource));
}
This is my first time using IntelliJ, and I am new to Java, so I'm not sure what to do here.
Here is context-fragment.xml
<?xml version='1.0' encoding='utf-8'?>
<Context>
<Resource name="jdbc/ipam"
factory="org.apache.tomcat.jdbc.pool.DataSourceFactory"
auth="Container"
type="javax.sql.DataSource"
initialSize="2"
maxActive="5"
maxIdle="5"
minIdle="1"
maxWait="10000"
removeAbandoned="true"
removeAbandonedTimeout="60"
logAbandoned="true"
defaultReadOnly="false"
username="**********"
password="**********"
driverClassName="org.postgresql.Driver"
validationQuery="select 1"
validationQueryTimeout="5"
logValidationErrors="true"
testOnBorrow="true"
testWhileIdle="true"
url="jdbc:postgresql://db1host/ipam_dev_table_here"/>
</Context>

Make sure that you have setup IntelliJ to deploy the context.xml file when it starts tomcat. You can do this by
Select "Project Structure" from the File menu
From there, select the "Facets" option. Make sure that you have a Web facet configured. If not, add one.
Once the web facet is added, select "Add Application Server specific descriptor..."
Select Tomcat Context Descriptor from the options and click OK.
By default IntelliJ will point to META-INF/context.xml. If this is not the location of your context file, you will need to edit the Path to the file.