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Tomcat v 9.0 - Public Key Retrieval is not allowed

I am building web application using Spring and Hibernate. I am using Tomcat version 9.0 and mysql-connector-java-8.0.12.jar
I am trying to run my program using Tomcat, I am getting this error.
Any help would be appreciated. I tried all the solutions but none worked for me.
May 12, 2019 6:01:22 PM com.mchange.v2.resourcepool.BasicResourcePool
WARNING: Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool#37045b48 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
May 12, 2019 6:02:54 PM com.mchange.v2.resourcepool.BasicResourcePool
WARNING: com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask#46e75b5c -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception:
java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:832)
at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456)
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240)
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:207)
at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:175)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:206)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:203)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125)
at com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44)
at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)
May 12, 2019 6:02:54 PM com.mchange.v2.resourcepool.BasicResourcePool
WARNING: Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool#37045b48 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
May 12, 2019 6:02:54 PM com.mchange.v2.resourcepool.BasicResourcePool
WARNING: com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask#158da6c2 -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception:
java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:832)
at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456)
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240)
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:207)
at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:175)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:206)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:203)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125)
at com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44)
at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)
May 12, 2019 6:02:54 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
WARN: SQL Error: 0, SQLState: null
May 12, 2019 6:02:54 PM com.mchange.v2.resourcepool.BasicResourcePool
WARNING: Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool#37045b48 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
May 12, 2019 6:02:54 PM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
ERROR: Connections could not be acquired from the underlying database!
May 12, 2019 6:02:54 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [dispatcher] in context with path [/web-customer-tracker] threw exception [Request processing failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Unable to acquire JDBC Connection] with root cause
java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:832)
at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456)
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240)
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:207)
at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:175)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:206)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:203)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125)
at com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44)
at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)
May 12, 2019 6:02:54 PM com.mchange.v2.resourcepool.BasicResourcePool
WARNING: com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask#701a20b -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception:
java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:832)
at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456)
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240)
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:207)
at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:175)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:206)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:203)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125)
at com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44)
at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)
May 12, 2019 6:02:54 PM com.mchange.v2.resourcepool.BasicResourcePool
WARNING: com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask#47b1f8e4 -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception:
java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:832)
at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456)
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240)
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:207)
at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:175)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:206)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:203)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125)
at com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44)
at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)
May 12, 2019 6:02:54 PM com.mchange.v2.resourcepool.BasicResourcePool
WARNING: Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool#37045b48 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
May 12, 2019 6:02:54 PM com.mchange.v2.resourcepool.BasicResourcePool
WARNING: Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool#37045b48 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
May 12, 2019 6:02:54 PM com.mchange.v2.resourcepool.BasicResourcePool
WARNING: com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask#48ada644 -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception:
java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110)
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:832)
at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456)
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240)
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:207)
at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:175)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:206)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:203)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125)
at com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44)
at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696)
May 12, 2019 6:02:54 PM com.mchange.v2.resourcepool.BasicResourcePool
WARNING: Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool#37045b48 is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.
This is my database connection manager file
package com.luv2code.testdb;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.sql.*;
/**
* Servlet implementation class TestDbServlet
*/
#WebServlet("/TestDbServlet")
public class TestDbServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* #see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// setup connection variables
String user = "springstudent";
String pass = "springstudent";
String jdbcUrl = "jdbc:mysql://localhost:3306/web_customer_tracker?allowPublicKeyRetrieval=true&useSSL=false&serverTimezone=UTC";
String driver = "com.mysql.cj.jdbc.Driver";
// get connection to the database
try {
PrintWriter out = response.getWriter();
out.println("Connecting to Database: " + jdbcUrl);
Class.forName(driver);
Connection myConn = DriverManager.getConnection(jdbcUrl, user, pass);
out.println("SUCCESS!!");
myConn.close();
}
catch (Exception exc) {
exc.printStackTrace();
throw new ServletException(exc);
}
}
}
This is my spring-mvc.xml file
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- Add support for component scanning -->
<context:component-scan base-package="com.luv2code.springdemo" />
<!-- Add support for conversion, formatting and validation support -->
<mvc:annotation-driven/>
<!-- Define Spring MVC view resolver -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/view/" />
<property name="suffix" value=".jsp" />
</bean>
<!-- Step 1: Define Database DataSource / connection pool -->
<bean id="myDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="com.mysql.cj.jdbc.Driver" />
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/web_customer_tracker?useSSL=false&serverTimezone=UTC" />
<property name="user" value="springstudent" />
<property name="password" value="springstudent" />
<!-- these are connection pool properties for C3P0 -->
<property name="minPoolSize" value="5" />
<property name="maxPoolSize" value="20" />
<property name="maxIdleTime" value="30000" />
</bean>
<!-- Step 2: Setup Hibernate session factory -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
<property name="dataSource" ref="myDataSource" />
<property name="packagesToScan" value="com.luv2code.springdemo.entity" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<!-- Step 3: Setup Hibernate transaction manager -->
<bean id="myTransactionManager"
class="org.springframework.orm.hibernate5.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
<!-- Step 4: Enable configuration of transactional behavior based on annotations -->
<tx:annotation-driven transaction-manager="myTransactionManager" />
<mvc:resources location="/resources/" mapping="/resources/**" ></mvc:resources>
</beans>

I had similar problem. Changing jdbc.url to
jdbc.url=jdbc:mysql://localhost:3306/web_customer_tracker?allowPublicKeyRetrieval=true&useSSL=false&serverTimezone=UTC
worked for me.

url="jdbc:mysql://localhost:3306/web_student_tracker?useSSL=true
I had a similar problem when I was doing the project, but its very simple just update mysql connector jar file (mysql-connector-java-8.0.12) to (mysql-connector-java-8.0.12) and it's working fine.

I had the same problem when I was doing the same course on Udemy, I fixed it just updating my mysql connector, now I am using (mysql-connector-java-8.0.16.jar) instead of (mysql-connector-java-8.0.12.jar)

Spring and Tomcat: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set

I have an application that uses the Spring Repository framework and a MySQL database. I currently have it deployed on Tomcat 7.
Once I deploy and attempt to log into the application (the first call to the database) I receive the following exception:
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in URL [file:/opt/apache-tomcat-7.0.62/webapps/waypoint/WEB-INF/classes/repository-context.xml]: Invocation of init method failed; nested exception is org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set
I have enabled query logging on the database and can confirm that a query is being made to the database for a user object. However, on the login page itself, I see the following message:
Your login attempt was not successful, try again.
Reason: could not extract ResultSet; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not extract ResultSet
To make things a bit more confusing, this only happens when I try deploying on a remote server. When I start a local instance of MySQL and run an instance of Tomcat on localhost, everything works as expected.
Below is my repository-context.xml:
<beans:bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<beans:property name="driverClassName" value="com.mysql.jdbc.Driver" />
<beans:property name="url"
value="jdbc:mysql://localhost:3306/waypoint_dev" />
<beans:property name="username" value="root" />
</beans:bean>
<beans:bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<beans:property name="dataSource" ref="dataSource" />
<beans:property name="jpaVendorAdapter">
<beans:bean
class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
</beans:property>
<!-- spring based scanning for entity classes> -->
<beans:property name="packagesToScan"
value="com.cigna.waypoint.repository, com.cigna.waypoint.core" />
</beans:bean>
<beans:bean id="transactionManager"
class="org.springframework.orm.jpa.JpaTransactionManager">
<beans:property name="entityManagerFactory" ref="entityManagerFactory" />
</beans:bean>
Does anyone have any ideas what could be causing the problem? Is there a configuration that is needed with Tomcat that I am not aware of, or have forgotten?
Thanks for your help.
=== UPDATE 1 ====
After specifying the dialect, I am receiving the following stack trace:
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet successfully received from the server was 161,752 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_45]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[na:1.8.0_45]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[na:1.8.0_45]
at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[na:1.8.0_45]
at com.mysql.jdbc.Util.handleNewInstance(Util.java:377) ~[mysql-connector-java-5.1.33.jar:5.1.33]
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1036) ~[mysql-connector-java-5.1.33.jar:5.1.33]
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3427) ~[mysql-connector-java-5.1.33.jar:5.1.33]
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3327) ~[mysql-connector-java-5.1.33.jar:5.1.33]
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3814) ~[mysql-connector-java-5.1.33.jar:5.1.33]
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2435) ~[mysql-connector-java-5.1.33.jar:5.1.33]
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2582) ~[mysql-connector-java-5.1.33.jar:5.1.33]
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2530) ~[mysql-connector-java-5.1.33.jar:5.1.33]
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1907) ~[mysql-connector-java-5.1.33.jar:5.1.33]
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2030) ~[mysql-connector-java-5.1.33.jar:5.1.33]
at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:96) ~[commons-dbcp-1.4.jar:1.4]
at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:96) ~[commons-dbcp-1.4.jar:1.4]
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:82) ~[hibernate-core-4.3.6.Final.jar:4.3.6.Final]
... 80 common frames omitted
Caused by: java.io.EOFException: Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost.
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2914) ~[mysql-connector-java-5.1.33.jar:5.1.33]
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3337) ~[mysql-connector-java-5.1.33.jar:5.1.33]
... 90 common frames omitted
20:48:32.455 [http-bio-8080-exec-34] DEBUG o.s.s.w.a.UsernamePasswordAuthenticationFilter - Authentication request failed: org.springframework.security.authentication.InternalAuthenticationServiceException: could not extract ResultSet; nested exception is org.hibernate.exception.JDBCConnectionException: could not extract ResultSet

Hibernate needs to know the dialect so that it can connect to the underlying database. You need to set the dialect as org.hibernate.dialect.MySQL5Dialect for MySQL along with the Datasource definition.
Here is a link which says why you need dialect.

I was able to resolve this issue by working through the steps listed in #Soheil 's answer found here:
Solving a "communications link failure" with JDBC and MySQL
It turns out that all I needed was add the hibernate dialect, as #Dhanush Gopinath suggested, and add the following to my my.cnf file:
interactive_timeout=180
wait_timeout=180
connect_timeout=180
max_connect_errors=9999
skip-name-resolve

Is it possible to connect to oracle 12c pluggable database using Hibernate?

I have created a test application in Hibernate and using Oracle 12c as database. I was able to connect to "sys" user of main database. I am able to create, insert, update the tables in this DB. But I am unable to connect to pluggable database. Is there any way to connect to PDB using hibernate. Test is my main DB and pdborcl is my PDB. I also tried google for this, but there is no post on Hibernate and Oracle 12c, but nothing specific to PDB. There is this article which says there is no support for 12c. https://github.com/denimgroup/threadfix/issues/488 Is this true?
As far as my understanding of Oracle 12c goes, CDB is only for administration purposes and PDB will be the database used for application purposes.
hibernate.cfg.xml
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="connection.url">jdbc:oracle:thin:#localhost:1521:test</property>
<property name="connection.username">sys as sysdba</property>
<property name="connection.password">sys</property>
<property name="connection.driver_class">oracle.jdbc.OracleDriver</property>
<property name="dialect">org.hibernate.dialect.Oracle10gDialect</property>
<property name="show_sql">true</property>
<property name="format_sql">true</property>
<property name="hbm2ddl.auto">create</property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>
<property name="current_session_context_class">thread</property>
<mapping class="com.test.domain.Employee" />
<mapping class="com.test.domain.Department" />
</session-factory>
</hibernate-configuration>
When I try to connect to PDB by changing test to pdborcl it gives me below exception. I am able to ping both test and pdborcl from my system. I am also able to connect to both DBs using sqlplus from terminal.
I get below exception when I try to connect to PDB.
Jan 15, 2015 10:30:22 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000402: Using Hibernate built-in connection pool (not for production use!)
Jan 15, 2015 10:30:22 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000401: using driver [oracle.jdbc.OracleDriver] at URL [jdbc:oracle:thin:#localhost:1521:pdborcl]
Jan 15, 2015 10:30:22 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000046: Connection properties: {user=sys as sysdba, password=****}
Jan 15, 2015 10:30:22 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH000006: Autocommit mode: false
Jan 15, 2015 10:30:22 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
INFO: HHH000115: Hibernate connection pool size: 1 (min=1)
Initial SessionFactory creation failed.org.hibernate.exception.JDBCConnectionException: Error calling Driver#connect
Exception in thread "main" java.lang.ExceptionInInitializerError
at com.test.util.HibernateUtil.buildSessionFactory(HibernateUtil.java:17)
at com.test.util.HibernateUtil.<clinit>(HibernateUtil.java:8)
at com.test.hibernate.HibernateTest.main(HibernateTest.java:15)
Caused by: org.hibernate.exception.JDBCConnectionException: Error calling Driver#connect
at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator$1$1.convert(BasicConnectionCreator.java:122)
at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator.convertSqlException(BasicConnectionCreator.java:140)
at org.hibernate.engine.jdbc.connections.internal.DriverConnectionCreator.makeConnection(DriverConnectionCreator.java:58)
at org.hibernate.engine.jdbc.connections.internal.BasicConnectionCreator.createConnection(BasicConnectionCreator.java:75)
at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure(DriverManagerConnectionProviderImpl.java:106)
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:89)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:206)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:178)
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.buildJdbcConnectionAccess(JdbcServicesImpl.java:260)
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:94)
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:89)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:206)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:178)
at org.hibernate.cfg.Configuration.buildTypeRegistrations(Configuration.java:1885)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1843)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1928)
at com.test.util.HibernateUtil.buildSessionFactory(HibernateUtil.java:13)
... 2 more
Caused by: java.sql.SQLException: Listener refused the connection with the following error:
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:70)
at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:133)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:199)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:480)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:413)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:508)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:203)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:33)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:510)
at org.hibernate.engine.jdbc.connections.internal.DriverConnectionCreator.makeConnection(DriverConnectionCreator.java:55)
... 16 more
Caused by: oracle.net.ns.NetException: Listener refused the connection with the following error:
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
at oracle.net.ns.NSProtocol.connect(NSProtocol.java:361)
at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:966)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:292)
... 21 more

Your syntax is slightly wrong. Make sure you use the /SERVICE_NAME not the :SID.
For jdbc to connect to a pluggable database, :SID can no longer be used. (well, it can but don't go there)
Accessing an Oracle Database by service_name is the correct approach since Oracle 8i. And that is 100 it-years ago!
jdbc:oracle:thin:#localhost:1521/my_pdb_service_name
You will find available services by asking the listener
lsnrctl service
The sys account is a special account. Sys has the same meaning for the database as the root user has for the OS. You can do harm with these users! Instead create an application account/user.
create user mysuperapp identified by "Neverloginassys";
grant create session to mysuperapp;
Mr. Hall explains all 12c connection scenarios here
Best of luck,
Bjarte

Sometimes Hibernate can not get connection by C3P0

I have a project use Struts2+hibernate3(c3p0),
Following is my C3P0 configuration
<property name="hibernate.connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</property>
<property name="hibernate.c3p0.acquire_increment">2</property>
<property name="hibernate.c3p0.idle_test_period">15</property>
<property name="hibernate.c3p0.max_idle_time">10</property>
<property name="hibernate.c3p0.max_size">50</property>
<property name="hibernate.c3p0.max_statements">100</property>
<property name="hibernate.c3p0.min_size">20</property>
<property name="hibernate.c3p0.timeout">10</property>
<property name="hibernate.c3p0.validate">true</property>
<property name="hibernate.c3p0.preferredTestQuery">select 1 from dual</property>
<property name="automaticTestTable">Test</property>
<!-- <property name="hibernate.c3p0.testConnectionOnCheckout">true</property> -->
<property name="hibernate.connection.autoReconnect">true</property>
<property name="hibernate.connection.autoReconnectForPools">true</property>
<property name="hibernate.connection.is-connection-validation-required">true</property>
My database is mysql and I can not config it (in cloud)
My problem is some time I got following message
Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection
at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:126)
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:114)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)
at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)
at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:142)
at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:85)
at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1354)
at com.rh.ws.getAllMessageAction.getAllMessage(getAllMessageAction.java:42)
... 86 more
Caused by: java.sql.SQLException: Connections could not be acquired from the underlying database!
at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:118)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:690)
at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:140)
at org.hibernate.connection.C3P0ConnectionProvider.getConnection(C3P0ConnectionProvider.java:78)
at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)
... 91 more
Caused by: com.mchange.v2.resourcepool.CannotAcquireResourceException: A ResourcePool could not acquire a resource from its primary factory or source.
at com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1422)
at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:606)
at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:526)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutAndMarkConnectionInUse(C3P0PooledConnectionPool.java:756)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:683)
The wait_timeout is 30s in my database(mysql) and it's can not change.
I try to set the max_idle_time to 20 and I discover it doesn't work.
Do I need close the connection every time? or just close the session is fine?

When you close a Session it will automatically close the underlying connection. You should also commit the Hibernate Transaction on success and rollback on failure. This will ensure that the database transaction is properly terminated.
If you don't close teh Hibernate Session, then the JDBC connection won't be released. So when all hibernate.c3p0.max_size are being in use, you'll soon get the connection acquire connection exception.
One other cause might be due to very long running queries. Check your queries as well.
Make sure:
<prop key="hibernate.c3p0.checkoutTimeout">30</prop>
has an enough connection acquire timeout value.

File Polling and Filtering Issues with SFTP Spring Integration

I am trying to pull remote files through SFTP Spring Integration and dump into my local drive, and kick-off a Spring Batch Job (Step-1 to read, process & write), followed by Step-2 where a Tasklet archives the local file downloaded to another location locally and deletes the downloaded file.
Assuming the files being downloaded is "data.service", "data.maintenance" and "data.transaction". I am only processing "data.service" but all 3 are archived and deleted.
I want the above steps to happen at a specific interval assuming that a new set of files will be overwritten at the remote location.
Bean def
<bean id="acceptAllFileListFilter" class="org.springframework.integration.file.filters.AcceptAllFileListFilter"/>
<bean id="acceptOnceFileListFilter" class="org.springframework.integration.file.filters.AcceptOnceFileListFilter"/>
conf
<int-sftp:inbound-channel-adapter id="sftpInbondAdapter"
channel="inboundFileChannel"
session-factory="sftpSessionFactory"
local-directory="file:${inbound.local.directory}"
remote-directory="${inbound.remote.directory}"
auto-create-local-directory="true"
delete-remote-files="false"
preserve-timestamp="true"
filename-pattern="*.*"
local-filter="acceptAllFileListFilter" >
<int:poller max-messages-per-poll="-1" fixed-rate="60000" />
</int-sftp:inbound-channel-adapter>
What is happening now is...
The above triggers this sequence and runs in an unending loop, without fetching the new files from remote. Details as below:
I start with an empty local folder, and remote server has all 3 files
[Start the program]
Spring Integration program downloads all 3 files to local location
Spring Batch Job Step-1 gets triggered Tasklet (Step-2) archives the
local files Tasklet (Step-2) deletes the local files Spring
Integration program downloads all 3 files to local location (why???)
program keeps running Step-1 to Step-5 in an unending loop
New file dropped on the remote server, same (1) to (5) no job triggered
Tried replacing as below, but the program just runs once, i.e., from (1) to (5) and nothing happens
local-filter="acceptOnceFileListFilter" >
Expected
Spring Integration program downloads all 3 files to local location
Spring Batch Job Step-1 gets triggered
Tasklet (Step-2) archives the local files
Tasklet (Step-2) deletes the local files
Spring Integration program waits for new files to be dropped in the remote location (polls every 60000 ms)
New file dropped on the remote server
Start with (1) through (6)
Per suggestion on a different post I have a unique job parameter as below:
#Transformer
public JobLaunchRequest toRequest(Message<File> message) {
JobParametersBuilder jobParametersBuilder = new JobParametersBuilder();
jobParametersBuilder.addString(fileParameterName, message.getPayload().getAbsolutePath());
jobParametersBuilder.addLong("currentTime", new Long(System.currentTimeMillis()));
return new JobLaunchRequest(job, jobParametersBuilder.toJobParameters());
}
Tried with different combinations of filter, none served my purpose. Any sample would be of great help, struggling with this since last week.
Here's my change per the suggestions:
Adding a composite filter as below, but what would be the argument that will be passed to SftpPersistentAcceptOnceFileListFilter? I could not see any samples in the internet.
<bean id="compositeFilter" class="org.springframework.integration.file.filters.CompositeFileListFilter">
<constructor-arg>
<list>
<bean class="org.springframework.integration.file.filters.FileSystemPersistentAcceptOnceFileListFilter"/>
<bean class="org.springframework.integration.sftp.filters.SftpPersistentAcceptOnceFileListFilter">
</bean>
</list>
</constructor-arg>
</bean>
Including in the adapter as below:
<int-sftp:inbound-channel-adapter id="sftpInbondAdapter"
channel="inboundFileChannel"
session-factory="sftpSessionFactory"
local-directory="file:${inbound.local.directory}"
remote-directory="${inbound.remote.directory}"
auto-create-local-directory="true"
delete-remote-files="false"
filter="compositeFilter">
<int:poller max-messages-per-poll="-1" fixed-rate="600000" />
</int-sftp:inbound-channel-adapter>
Update - Changes after adding persistent filter:
<int-sftp:inbound-channel-adapter id="sftpInbondAdapter"
channel="inboundFileChannel"
session-factory="sftpSessionFactory"
local-directory="file:${inbound.local.directory}"
remote-directory="file:${inbound.remote.directory}"
auto-create-local-directory="false"
delete-remote-files="false"
filter="compositeFilter"
>
<int:poller max-messages-per-poll="-1" fixed-rate="60000" />
</int-sftp:inbound-channel-adapter>
<bean id="compositeFilter" class="org.springframework.integration.file.filters.CompositeFileListFilter">
<constructor-arg>
<list>
<bean class="org.springframework.integration.file.filters.FileSystemPersistentAcceptOnceFileListFilter">
<constructor-arg name="store" ref="metadataStore"/>
<constructor-arg value="*.*"/>
</bean>
<bean class="org.springframework.integration.sftp.filters.SftpPersistentAcceptOnceFileListFilter">
<constructor-arg name="store" ref="metadataStore"/>
<constructor-arg value="*.*"/>
</bean>
</list>
</constructor-arg>
</bean>
<bean id="redisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">
<property name="port" value="7379"/>
</bean>
<bean name="metadataStore" class="org.springframework.integration.redis.metadata.RedisMetadataStore">
<constructor-arg name="connectionFactory" ref="redisConnectionFactory"/>
</bean>
This gives me the exception as below. I tried the suggestions in the Spring forum, but I don't have a connection issues.
2014-07-17 22:27:14,139 [task-scheduler-1] INFO com.jcraft.jsch -
Authentication succeeded (keyboard-interactive). 2014-07-17
22:27:14,192 [task-scheduler-1] INFO com.jcraft.jsch - Disconnecting
from localhost port 22 2014-07-17 22:27:14,195 [task-scheduler-1]
DEBUG
org.springframework.beans.factory.support.DefaultListableBeanFactory -
Returning cached instance of singleton bean 'errorChannel' 2014-07-17
22:27:14,197 [task-scheduler-1] DEBUG
org.springframework.integration.channel.PublishSubscribeChannel -
preSend on channel 'errorChannel', message: [Payload
MessagingException
content=org.springframework.messaging.MessagingException: Problem
occurred while synchronizing remote to local
directory][Headers={id=84cccecf-20ec-f67b-3f74-a938bf9abf3d,
timestamp=1405661234197}] 2014-07-17 22:27:14,197 [task-scheduler-1]
DEBUG org.springframework.integration.handler.LoggingHandler - (inner
bean)#22 received message: [Payload MessagingException
content=org.springframework.messaging.MessagingException: Problem
occurred while synchronizing remote to local
directory][Headers={id=84cccecf-20ec-f67b-3f74-a938bf9abf3d,
timestamp=1405661234197}] 2014-07-17 22:27:14,199 [task-scheduler-1]
ERROR org.springframework.integration.handler.LoggingHandler -
org.springframework.messaging.MessagingException: Problem occurred
while synchronizing remote to local directory at
org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizer.synchronizeToLocalDirectory(AbstractInboundFileSynchronizer.java:193)
at
org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizingMessageSource.receive(AbstractInboundFileSynchronizingMessageSource.java:167)
at
org.springframework.integration.endpoint.SourcePollingChannelAdapter.receiveMessage(SourcePollingChannelAdapter.java:124)
at
org.springframework.integration.endpoint.AbstractPollingEndpoint.doPoll(AbstractPollingEndpoint.java:187)
at
org.springframework.integration.endpoint.AbstractPollingEndpoint.access$000(AbstractPollingEndpoint.java:52)
at
org.springframework.integration.endpoint.AbstractPollingEndpoint$1.call(AbstractPollingEndpoint.java:146)
at
org.springframework.integration.endpoint.AbstractPollingEndpoint$1.call(AbstractPollingEndpoint.java:143)
at
org.springframework.integration.endpoint.AbstractPollingEndpoint$Poller$1.run(AbstractPollingEndpoint.java:278)
at
org.springframework.integration.util.ErrorHandlingTaskExecutor$1.run(ErrorHandlingTaskExecutor.java:52)
at
org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:50)
at
org.springframework.integration.util.ErrorHandlingTaskExecutor.execute(ErrorHandlingTaskExecutor.java:49)
at
org.springframework.integration.endpoint.AbstractPollingEndpoint$Poller.run(AbstractPollingEndpoint.java:272)
at
org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
at
org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:81)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138) at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:206)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:695) Caused by:
org.springframework.messaging.MessagingException: Failed to execute on
session at
org.springframework.integration.file.remote.RemoteFileTemplate.execute(RemoteFileTemplate.java:311)
at
org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizer.synchronizeToLocalDirectory(AbstractInboundFileSynchronizer.java:167)
... 21 more Caused by: java.lang.ClassCastException:
com.jcraft.jsch.ChannelSftp$LsEntry cannot be cast to java.io.File at
org.springframework.integration.file.filters.FileSystemPersistentAcceptOnceFileListFilter.fileName(FileSystemPersistentAcceptOnceFileListFilter.java:28)
at
org.springframework.integration.file.filters.AbstractPersistentAcceptOnceFileListFilter.buildKey(AbstractPersistentAcceptOnceFileListFilter.java:88)
at
org.springframework.integration.file.filters.AbstractPersistentAcceptOnceFileListFilter.accept(AbstractPersistentAcceptOnceFileListFilter.java:48)
at
org.springframework.integration.file.filters.AbstractFileListFilter.filterFiles(AbstractFileListFilter.java:40)
at
org.springframework.integration.file.filters.CompositeFileListFilter.filterFiles(CompositeFileListFilter.java:97)
at
org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizer.filterFiles(AbstractInboundFileSynchronizer.java:157)
at
org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizer$1.doInSession(AbstractInboundFileSynchronizer.java:173)
at
org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizer$1.doInSession(AbstractInboundFileSynchronizer.java:167)
at
org.springframework.integration.file.remote.RemoteFileTemplate.execute(RemoteFileTemplate.java:302)
... 22 more
2014-07-17 22:27:14,199 [task-scheduler-1] DEBUG
org.springframework.integration.channel.PublishSubscribeChannel -
postSend (sent=true) on channel 'errorChannel', message: [Payload
MessagingException
content=org.springframework.messaging.MessagingException: Problem
occurred while synchronizing remote to local
directory][Headers={id=84cccecf-20ec-f67b-3f74-a938bf9abf3d,
timestamp=1405661234197}]
Update post removing FileSystemPersistentAcceptOnceFileListFilter filter leaving the 'SftpPersistentAcceptOnceFileListFilter'
2014-07-18 09:29:21,942 [task-scheduler-3] INFO com.jcraft.jsch -
Authentications that can continue:
publickey,keyboard-interactive,password 2014-07-18 09:29:21,942
[task-scheduler-3] INFO com.jcraft.jsch - Next authentication method:
publickey 2014-07-18 09:29:21,942 [task-scheduler-3] INFO
com.jcraft.jsch - Authentications that can continue:
keyboard-interactive,password 2014-07-18 09:29:21,942
[task-scheduler-3] INFO com.jcraft.jsch - Next authentication method:
keyboard-interactive 2014-07-18 09:29:22,022 [task-scheduler-3] INFO
com.jcraft.jsch - Authentication succeeded (keyboard-interactive).
2014-07-18 09:29:22,067 [task-scheduler-3] DEBUG
org.springframework.data.redis.core.RedisConnectionUtils - Opening
RedisConnection 2014-07-18 09:29:22,068 [task-scheduler-3] INFO
com.jcraft.jsch - Disconnecting from localhost port 22 2014-07-18
09:29:22,068 [task-scheduler-3] DEBUG
org.springframework.integration.channel.PublishSubscribeChannel -
preSend on channel 'errorChannel', message: [Payload
MessagingException
content=org.springframework.messaging.MessagingException: Problem
occurred while synchronizing remote to local
directory][Headers={id=55304e38-6f82-8350-e763-0f5bcb507788,
timestamp=1405700962068}] 2014-07-18 09:29:22,068 [Connect thread
localhost session] INFO com.jcraft.jsch - Caught an exception,
leaving main loop due to Socket closed 2014-07-18 09:29:22,068
[task-scheduler-3] DEBUG
org.springframework.integration.handler.LoggingHandler - (inner
bean)#22 received message: [Payload MessagingException
content=org.springframework.messaging.MessagingException: Problem
occurred while synchronizing remote to local
directory][Headers={id=55304e38-6f82-8350-e763-0f5bcb507788,
timestamp=1405700962068}] 2014-07-18 09:29:22,069 [task-scheduler-3]
ERROR org.springframework.integration.handler.LoggingHandler -
org.springframework.messaging.MessagingException: Problem occurred
while synchronizing remote to local directory at
org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizer.synchronizeToLocalDirectory(AbstractInboundFileSynchronizer.java:193)
at
org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizingMessageSource.receive(AbstractInboundFileSynchronizingMessageSource.java:167)
at
org.springframework.integration.endpoint.SourcePollingChannelAdapter.receiveMessage(SourcePollingChannelAdapter.java:124)
at
org.springframework.integration.endpoint.AbstractPollingEndpoint.doPoll(AbstractPollingEndpoint.java:187)
at
org.springframework.integration.endpoint.AbstractPollingEndpoint.access$000(AbstractPollingEndpoint.java:52)
at
org.springframework.integration.endpoint.AbstractPollingEndpoint$1.call(AbstractPollingEndpoint.java:146)
at
org.springframework.integration.endpoint.AbstractPollingEndpoint$1.call(AbstractPollingEndpoint.java:143)
at
org.springframework.integration.endpoint.AbstractPollingEndpoint$Poller$1.run(AbstractPollingEndpoint.java:278)
at
org.springframework.integration.util.ErrorHandlingTaskExecutor$1.run(ErrorHandlingTaskExecutor.java:52)
at
org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:50)
at
org.springframework.integration.util.ErrorHandlingTaskExecutor.execute(ErrorHandlingTaskExecutor.java:49)
at
org.springframework.integration.endpoint.AbstractPollingEndpoint$Poller.run(AbstractPollingEndpoint.java:272)
at
org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
at
org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:81)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138) at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:206)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:695) Caused by:
org.springframework.messaging.MessagingException: Failed to execute on
session at
org.springframework.integration.file.remote.RemoteFileTemplate.execute(RemoteFileTemplate.java:311)
at
org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizer.synchronizeToLocalDirectory(AbstractInboundFileSynchronizer.java:167)
... 21 more Caused by:
org.springframework.data.redis.RedisConnectionFailureException: Cannot
get Jedis connection; nested exception is
redis.clients.jedis.exceptions.JedisConnectionException: Could not get
a resource from the pool at
org.springframework.data.redis.connection.jedis.JedisConnectionFactory.fetchJedisConnector(JedisConnectionFactory.java:97)
at
org.springframework.data.redis.connection.jedis.JedisConnectionFactory.getConnection(JedisConnectionFactory.java:143)
at
org.springframework.data.redis.connection.jedis.JedisConnectionFactory.getConnection(JedisConnectionFactory.java:41)
at
org.springframework.data.redis.core.RedisConnectionUtils.doGetConnection(RedisConnectionUtils.java:128)
at
org.springframework.data.redis.core.RedisConnectionUtils.getConnection(RedisConnectionUtils.java:91)
at
org.springframework.data.redis.core.RedisConnectionUtils.getConnection(RedisConnectionUtils.java:78)
at
org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:177)
at
org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:152)
at
org.springframework.data.redis.core.AbstractOperations.execute(AbstractOperations.java:84)
at
org.springframework.data.redis.core.DefaultHashOperations.putIfAbsent(DefaultHashOperations.java:179)
at
org.springframework.data.redis.core.DefaultBoundHashOperations.putIfAbsent(DefaultBoundHashOperations.java:91)
at
org.springframework.data.redis.support.collections.RedisProperties.putIfAbsent(RedisProperties.java:228)
at
org.springframework.integration.redis.metadata.RedisMetadataStore.putIfAbsent(RedisMetadataStore.java:139)
at
org.springframework.integration.file.filters.AbstractPersistentAcceptOnceFileListFilter.accept(AbstractPersistentAcceptOnceFileListFilter.java:51)
at
org.springframework.integration.file.filters.AbstractFileListFilter.filterFiles(AbstractFileListFilter.java:40)
at
org.springframework.integration.file.filters.CompositeFileListFilter.filterFiles(CompositeFileListFilter.java:97)
at
org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizer.filterFiles(AbstractInboundFileSynchronizer.java:157)
at
org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizer$1.doInSession(AbstractInboundFileSynchronizer.java:173)
at
org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizer$1.doInSession(AbstractInboundFileSynchronizer.java:167)
at
org.springframework.integration.file.remote.RemoteFileTemplate.execute(RemoteFileTemplate.java:302)
... 22 more Caused by:
redis.clients.jedis.exceptions.JedisConnectionException: Could not get
a resource from the pool at
redis.clients.util.Pool.getResource(Pool.java:42) at
redis.clients.jedis.JedisPool.getResource(JedisPool.java:84) at
redis.clients.jedis.JedisPool.getResource(JedisPool.java:10) at
org.springframework.data.redis.connection.jedis.JedisConnectionFactory.fetchJedisConnector(JedisConnectionFactory.java:90)
... 41 more Caused by:
redis.clients.jedis.exceptions.JedisConnectionException:
java.net.ConnectException: Connection refused at
redis.clients.jedis.Connection.connect(Connection.java:150) at
redis.clients.jedis.BinaryClient.connect(BinaryClient.java:71) at
redis.clients.jedis.BinaryJedis.connect(BinaryJedis.java:1783) at
redis.clients.jedis.JedisFactory.makeObject(JedisFactory.java:65) at
org.apache.commons.pool2.impl.GenericObjectPool.create(GenericObjectPool.java:819)
at
org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:429)
at
org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:360)
at redis.clients.util.Pool.getResource(Pool.java:40) ... 44 more
Caused by: java.net.ConnectException: Connection refused at
java.net.PlainSocketImpl.socketConnect(Native Method) at
java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:382) at
java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:241)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:228) at
java.net.SocksSocketImpl.connect(SocksSocketImpl.java:431) at
java.net.Socket.connect(Socket.java:527) at
redis.clients.jedis.Connection.connect(Connection.java:144) ... 51
more
2014-07-18 09:29:22,069 [task-scheduler-3] DEBUG
org.springframework.integration.channel.PublishSubscribeChannel -
postSend (sent=true) on channel 'errorChannel', message: [Payload
MessagingException
content=org.springframework.messaging.MessagingException: Problem
occurred while synchronizing remote to local
directory][Headers={id=55304e38-6f82-8350-e763-0f5bcb507788,
timestamp=1405700962068}]

Gist Here
Hopefully self-explanatory; it just prints the file name on the console, then deletes it.

It could be the case that if the new files dropped on the server has same name(which are downloaded in the first iteration) then spring integration will not attempt to download the files again. "acceptOnceFileListFilter" seems like something that would restrict sftp integration component to download the same file again.
Update: Here is some sample code which polls a remote directory every 10 secs without introducing any filters(I am not sure why you need them, as you want to download the files regardless). Given that you dont want to change the file names, the only thing that you will have to make sure is that your downloaded local needs to deleted when the next file is dropped on the remote server. I verified it and worked fine for me.
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:int="http://www.springframework.org/schema/integration"
xmlns:int-ftp="http://www.springframework.org/schema/integration/ftp"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/integration http://www.springframework.org/schema/integration/spring-integration.xsd
http://www.springframework.org/schema/integration/ftp http://www.springframework.org/schema/integration/ftp/spring-integration-ftp.xsd">
<int:channel id="incomingChannel"/>
<bean id="ftpClientFactory" class="org.springframework.integration.ftp.session.DefaultFtpSessionFactory">
<property name="host" value="host"/>
<property name="username" value="username"/>
<property name="password" value="password"/>
</bean>
<!-- poll every 10 secs without worrying about file names-->
<int-ftp:inbound-channel-adapter id="triggerFtpInBound"
channel="incomingChannel"
auto-create-local-directory="true"
local-directory="C:\home\temp\ftp"
remote-directory="/export/home/rbaljinder/ftp-test"
filename-pattern="*.*"
session-factory="ftpClientFactory">
<int:poller cron="1/10 * * * * *" max-messages-per-poll="1"/>
</int-ftp:inbound-channel-adapter>
UPDATE: seems working now.Added local-filter="acceptAllFileListFilter".
<int-ftp:inbound-channel-adapter id="triggerFtpInBound"
channel="incomingChannel"
auto-create-local-directory="true"
local-directory="C:\home\temp\ftp"
remote-directory="/export/home/cwk2/ftp-test"
filename-pattern="*.*"
session-factory="ftpClientFactory"
local-filter="acceptAllFileListFilter">
<int:poller cron="1/10 * * * * *" max-messages-per-poll="1"/>
</int-ftp:inbound-channel-adapter>
<bean id="acceptAllFileListFilter"
class="org.springframework.integration.file.filters.AcceptAllFileListFilter"/>
<int:service-activator id="jobServiceActivator"
input-channel="incomingChannel"
ref="triggerJobLauncher"
method="launch"/>
#Component("triggerJobLauncher")
public static class TriggerJobLauncher {
#Autowired
JobLauncher jobLauncher;
public void launch(File file) throws Exception {
System.out.println("test:" + file);
}
}