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java.sql.SQLRecoverableException: IO Error: Unknown Authentication, Encryption or Data Integrity algorithm

I have a spring boot application that uses java 11, oracle 19c, and ojdbc8:19.8.0.0. The app is deployed on cloud(konvoy). I got an exception (attached below) when the application starts. I google "java.sql.SQLRecoverableException: IO Error: Unknown Authentication, Encryption or Data Integrity algorithm" but doesn't get useful information. Did anyone experience the same issue before?
Below are portion of pom.xml and exception. The driver class is oracle.jdbc.oracleDriver
<dependency>
<groupId>com.oracle.database.jdbc</groupId>
<artifactId>ojdbc8</artifactId>
<version>19.8.0.0</version>
</dependency>
2022-12-02:15:39:33:687 [http-nio-8080-exec-2] DEBUG o.s.jdbc.datasource.DataSourceUtils[116] - Fetching JDBC Connection from DataSource
2022-12-02:15:39:33:693 [http-nio-8080-exec-2] INFO com.zaxxer.hikari.HikariDataSource[110] - HikariPool-1 - Starting...
2022-12-02:15:39:35:357 [http-nio-8080-exec-2] ERROR com.zaxxer.hikari.pool.HikariPool[594] - HikariPool-1 - Exception during pool initialization.
java.sql.SQLRecoverableException: IO Error: Unknown Authentication, Encryption or Data Integrity algorithm
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:458)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:546)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:236)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521)
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138)
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:364)
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206)
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:476)
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:561)
at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115)
at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112)
at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:159)
at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:117)
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:80)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:376)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:465)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:475)
at pax.tded.i94.util.HealthCheck.checkDbConnection(HealthCheck.java:69)
at pax.tded.i94.util.HealthCheck.health(HealthCheck.java:48)
at org.springframework.boot.actuate.health.HealthIndicator.getHealth(HealthIndicator.java:37)
at org.springframework.boot.actuate.health.HealthEndpointWebExtension.getHealth(HealthEndpointWebExtension.java:104)
at org.springframework.boot.actuate.health.HealthEndpointWebExtension.getHealth(HealthEndpointWebExtension.java:46)
at org.springframework.boot.actuate.health.HealthEndpointSupport.getLoggedHealth(HealthEndpointSupport.java:172)
at org.springframework.boot.actuate.health.HealthEndpointSupport.getContribution(HealthEndpointSupport.java:145)
at org.springframework.boot.actuate.health.HealthEndpointSupport.getAggregateContribution(HealthEndpointSupport.java:156)
at org.springframework.boot.actuate.health.HealthEndpointSupport.getContribution(HealthEndpointSupport.java:141)
at org.springframework.boot.actuate.health.HealthEndpointSupport.getHealth(HealthEndpointSupport.java:110)
at org.springframework.boot.actuate.health.HealthEndpointSupport.getHealth(HealthEndpointSupport.java:81)
at org.springframework.boot.actuate.health.HealthEndpointWebExtension.health(HealthEndpointWebExtension.java:90)
at org.springframework.boot.actuate.health.HealthEndpointWebExtension.health(HealthEndpointWebExtension.java:79)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:282)
at org.springframework.boot.actuate.endpoint.invoke.reflect.ReflectiveOperationInvoker.invoke(ReflectiveOperationInvoker.java:74)
at org.springframework.boot.actuate.endpoint.annotation.AbstractDiscoveredOperation.invoke(AbstractDiscoveredOperation.java:60)
at org.springframework.boot.actuate.endpoint.web.servlet.AbstractWebMvcEndpointHandlerMapping$ServletWebOperationAdapter.handle

The dreaded Java SpringBoot app not connecting to MySQL with Docker-compose java.net.ConnectException: Connection refused

I have been struggling with the following issue - the dreaded Java SpringBoot app not connecting to MySQL with docker compose exceptions:
com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
JDBCConnectionException: Unable to open JDBC Connection for DDL execution
java.net.ConnectException: Connection refused
The app works fine on its own, but it can't seem to connect to mysql once I get it in Docker. I think I have all parameters correct, what am I missing?
Platform:
MacOS Mojave 10.14.6
---
Docker version 19.03.13, build 4484c46d9d
docker-compose version 1.27.4, build 40524192
---
mysql Ver 8.0.21 for osx10.14 on x86_64 (Homebrew)
---
openjdk 11.0.8 2020-07-14
OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.8+10)
OpenJDK 64-Bit Server VM AdoptOpenJDK (build 11.0.8+10, mixed mode)
---
Spring CLI v2.3.4.RELEASE
---
Apache Maven 3.5.4 (1edded0938998edf8bf061f1ceb3cfdeccf443fe; 2018-06-17T21:33:14+03:00)
Maven home: /usr/local/Cellar/maven#3.5/3.5.4_1/libexec
Java version: 11.0.8, vendor: AdoptOpenJDK, runtime: /Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk/Contents/Home
Default locale: en_GB, platform encoding: UTF-8
OS name: "mac os x", version: "10.14.6", arch: "x86_64", family: "mac"
Here is the whole codebase: Codebase
Run with command:
docker-compose up --build --remove-orphans
My docker-compose.yml (The commented out stuff is things I tried):
version: "3.8"
services:
genesysmysql:
container_name: genesysmysql
# container_name: genesysmysql_container
image: "mysql:8.0.21"
restart: always
environment:
- MYSQL_ROOT_PASSWORD=root
- MYSQL_DATABASE=db_example
- MYSQL_USER=springuser
- MYSQL_PASSWORD=ThePassword
ports:
- 3306:3306
volumes:
- ./setup.sql:/docker-entrypoint-initdb.d/setup.sql:ro
healthcheck:
test: [ "CMD", "mysqladmin" ,"ping", "-h", "localhost" ]
timeout: 20s
retries: 20
genesys:
build: .
ports:
- 8080:8080
depends_on:
genesysmysql:
condition: service_healthy
environment:
- spring.datasource.jdbc-url=jdbc:genesysmysql://db_example:3306?useSSL=false&allowPublicKeyRetrieval=true&autoReconnect=true
# - spring.datasource.jdbc-url=jdbc:genesysmysql://db_example:3306?useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&autoReconnect=true
- spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
# - spring.datasource.username=root
# - spring.datasource.password=root
# - spring.datasource.username=springuser
# - spring.datasource.password=ThePassword
# - spring.jpa.hibernate.ddl-auto=create-drop
- spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
# - spring.data.jpa.repositories.enabled=true
# - spring.jpa.database-platform=org.hibernate.dialect.MySQL5Dialect
# - spring.jpa.generate-ddl=true
My setup.sql script:
CREATE DATABASE db_example;
CREATE USER 'springuser'#'%' IDENTIFIED BY 'ThePassword';
GRANT ALL ON db_example.* to 'springuser'#'%';
GRANT ALL ON db_example.* TO 'springuser'#'localhost';
GRANT ALL ON db_example.* TO 'springuser'#'genesysmysql_container';
GRANT ALL ON db_example.* TO 'springuser'#'genesysmysql';
My dockerfile:
FROM adoptopenjdk/openjdk11:alpine
MAINTAINER atkuzmanov <https://github.com/atkuzmanov>
RUN addgroup -S spring && adduser -S spring -G spring
USER spring:spring
ARG JAR_FILE=target/*.jar
COPY ${JAR_FILE} app.jar
EXPOSE 8080
ENTRYPOINT ["java","-jar","/app.jar"]
My application.properties file:
### Spring properties
spring.application.name=#project.name#
#spring.output.ansi.console-available=true
#server.port=8080
spring.output.ansi.enabled=ALWAYS
### Spring banner properties
#spring.banner.location=classpath:banner.txt
#spring.main.banner-mode=off
info.app.name=#project.name#
info.app.version=#project.version#
info.app.url=#project.url#
### Spring Actuator properties
## Do not expose or enable the 'shutdown' option in a public production application.
#management.endpoint.shutdown.enabled=true
management.endpoints.web.exposure.include=health,info,httptrace
### Spring Devtools properties
#spring.devtools.add-properties=false
#spring.devtools.restart.log-condition-evaluation-delta=false
#spring.devtools.restart.enabled=false
#spring.devtools.livereload.enabled=false
### Spring logging properties
## Change logging levels as appropriate when debugging
logging.level.=WARN
logging.level.customLogbackLevel=INFO
logging.level.org.springframework=WARN
logging.level.org.springframework.web.servlet.=ERROR
logging.level.org.hibernate=ERROR
logging.level.org.apache.catalina.core.ContainerBase.=WARN
### Spring Distributed Tracing properties
## Zipkin properties
spring.zipkin.enabled=true
spring.zipkin.base-url=http://127.0.0.1:9411/
## Sleuth properties
spring.sleuth.enabled=true
spring.sleuth.sampler.percentage=0.5
#spring.sleuth.web.skipPattern=(^cleanup.*|.+favicon.*)
### Spring Data properties
## These are just to get things started, should be changed afterwards.
#spring.jpa.hibernate.ddl-auto=none
spring.jpa.hibernate.ddl-auto=update
spring.datasource.url=jdbc:mysql://${MYSQL_HOST:localhost}:3306/db_example?useSSL=false&allowPublicKeyRetrieval=true
spring.datasource.username=springuser
spring.datasource.password=ThePassword
#spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5
### Spring Open Session properties
### Warning message by default:
## "spring.jpa.open-in-view is enabled by default.
## Therefore, database queries may be performed during view rendering.
## Explicitly configure spring.jpa.open-in-view to disable this warning"
## See:
## RE: spring.jpa.open-in-view Warning
## - <https://stackoverflow.com/questions/30549489/what-is-this-spring-jpa-open-in-view-true-property-in-spring-boot>
## - <https://www.baeldung.com/spring-open-session-in-view>
spring.jpa.open-in-view=true
### Spring Thymeleaf properties
spring.thymeleaf.cache=false
Here are the exception messages:
Exception 1:
Exception 1
Eception 2:
Exception 2
Exception 3:
Exception 3
Exception 4, which encapsulates all of them:
Exception 4
{
"app": "GeneSys",
"logMsgId": "f7b6c3cc-0dce-4eb6-b6c3-cc0dce1eb69c",
"#timestamp": "2020-11-11T11:20:31.822Z",
"#version": "1",
"logger": "org.springframework.boot.SpringApplication",
"level": "ERROR",
"thread": "main",
"stackTrace": "org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'timestampRepository' defined in com.atkuzmanov.genesys.dao.TimestampRepository defined in #EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Cannot resolve reference to bean 'jpaMappingContext' while setting bean property 'mappingContext'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to open JDBC Connection for DDL execution
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:342)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:113)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1697)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1442)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:624)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:612)
at org.springframework.data.repository.config.DeferredRepositoryInitializationListener.onApplicationEvent(DeferredRepositoryInitializationListener.java:51)
at org.springframework.data.repository.config.DeferredRepositoryInitializationListener.onApplicationEvent(DeferredRepositoryInitializationListener.java:36)
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:404)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:361)
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:898)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:554)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
at com.atkuzmanov.genesys.GenesysApplication.main(GenesysApplication.java:15)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49)
at org.springframework.boot.loader.Launcher.launch(Launcher.java:107)
at org.springframework.boot.loader.Launcher.launch(Launcher.java:58)
at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:88)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to open JDBC Connection for DDL execution
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1794)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:330)
... 36 common frames omitted
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to open JDBC Connection for DDL execution
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:403)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: org.hibernate.exception.JDBCConnectionException: Unable to open JDBC Connection for DDL execution
at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:112)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:113)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:99)
at org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl.getIsolatedConnection(DdlTransactionIsolatorNonJtaImpl.java:69)
at org.hibernate.tool.schema.internal.exec.ImprovedExtractionContextImpl.getJdbcConnection(ImprovedExtractionContextImpl.java:60)
at org.hibernate.tool.schema.internal.exec.ImprovedExtractionContextImpl.getJdbcDatabaseMetaData(ImprovedExtractionContextImpl.java:67)
at org.hibernate.tool.schema.extract.internal.InformationExtractorJdbcDatabaseMetaDataImpl.getTables(InformationExtractorJdbcDatabaseMetaDataImpl.java:333)
at org.hibernate.tool.schema.extract.internal.DatabaseInformationImpl.getTablesInformation(DatabaseInformationImpl.java:120)
at org.hibernate.tool.schema.internal.GroupedSchemaMigratorImpl.performTablesMigration(GroupedSchemaMigratorImpl.java:65)
at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.performMigration(AbstractSchemaMigrator.java:207)
at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.doMigration(AbstractSchemaMigrator.java:114)
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:184)
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:73)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:316)
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:469)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1259)
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58)
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:391)
... 4 common frames omitted
Caused by: com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836)
at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456)
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:197)
at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138)
at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:358)
at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206)
at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:477)
at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:560)
at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115)
at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112)
at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122)
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:180)
at org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl.getIsolatedConnection(DdlTransactionIsolatorNonJtaImpl.java:43)
... 19 common frames omitted
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:91)
at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826)
... 32 common frames omitted
Caused by: java.net.ConnectException: Connection refused (Connection refused)
at java.base/java.net.PlainSocketImpl.socketConnect(Native Method)
at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:399)
at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:242)
at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:224)
at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:403)
at java.base/java.net.Socket.connect(Socket.java:609)
at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:155)
at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:65)
... 35 common frames omitted
",
"message": "Application run failed",
"method": "reportFailure",
"class": "org.springframework.boot.SpringApplication"
}

To fix it you just need to change parameter spring.datasource.jdbc-url to spring.datasource.url and connection string to jdbc:mysql://genesysmysql:3306/db_example?useSSL=false&allowPublicKeyRetrieval=true&autoReconnect=true. Your connection string has an error.

How can I produce a kafka producer in Java

I'm trying to create a java instance of a Kafka producer which throws this error, but when I run the console producer it works.
I believe the error stems from as the imports
The error:
[main] INFO org.apache.kafka.common.utils.AppInfoParser - Kafka version: 2.6.0
[main] INFO org.apache.kafka.common.utils.AppInfoParser - Kafka commitId: 62abe01bee039651
[main] INFO org.apache.kafka.common.utils.AppInfoParser - Kafka startTimeMs: 1602094910199
[kafka-producer-network-thread | producer-1] ERROR org.apache.kafka.common.utils.KafkaThread - Uncaught exception in thread 'kafka-producer-network-thread | producer-1':
java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/JsonNode
at org.apache.kafka.common.requests.ApiVersionsRequest$Builder.<clinit>(ApiVersionsRequest.java:36)
at org.apache.kafka.clients.NetworkClient.handleConnections(NetworkClient.java:910)
at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:555)
at org.apache.kafka.clients.producer.internals.Sender.runOnce(Sender.java:325)
at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:240)
at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: java.lang.ClassNotFoundException: com.fasterxml.jackson.databind.JsonNode
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:602)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
... 6 more
[main] INFO org.apache.kafka.clients.producer.KafkaProducer - [Producer clientId=producer-1] Closing the Kafka producer with timeoutMillis = 9223372036854775807 ms.

If you're using just kafka-clients dependency as you can see in the documentation
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka-clients</artifactId>
<version>2.6.0</version>
</dependency>
You should notice that in it's pom.xml the dependency to jackson-databind is marked as provided, meaning - it expects/assumes that you'll be running your consumer inside a web container, which most likely has it's own implementation and does not want to interfere.
However, if you're running in a jvm that doesn't have jackson in classpath already - then just add whatever version you like in your own pom.xml
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.10.5</version> <!-- latest? -->
</dependency>
( Although it's quite likely that you might need more than that one )

Rabbitmq queue is not automatically created on server start

I get the following exception when starting my server on one of the environments. However, it works fine on the another environment.
Caused by: org.springframework.amqp.AmqpIllegalStateException: Fatal exception on listener startup
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer.doStart(SimpleMessageListenerContainer.java:342)
at org.springframework.amqp.rabbit.listener.AbstractMessageListenerContainer.start(AbstractMessageListenerContainer.java:363)
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:173)
... 54 more
Caused by: org.springframework.amqp.rabbit.listener.FatalListenerStartupException: Cannot prepare queue for listener. Either the queue doesn't exist or the broker will not allow us to use it.
Caused by: java.io.IOException
at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:106)
at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:102)
at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:124)
at com.rabbitmq.client.impl.ChannelN.queueDeclarePassive(ChannelN.java:790)
at com.rabbitmq.client.impl.ChannelN.queueDeclarePassive(ChannelN.java:61)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.amqp.rabbit.connection.CachingConnectionFactory$CachedChannelInvocationHandler.invoke(CachingConnectionFactory.java:348)
at com.sun.proxy.$Proxy89.queueDeclarePassive(Unknown Source)
at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.start(BlockingQueueConsumer.java:216)
Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; reason: {#method<channel.close>(reply-code=404, reply-text=NOT_FOUND - no queue 'blah.blah.queue' in vhost '/', class-id=50, method-id=10), null, ""}
at com.rabbitmq.client.impl.ChannelN.asyncShutdown(ChannelN.java:474)
at com.rabbitmq.client.impl.ChannelN.processAsync(ChannelN.java:315)
at com.rabbitmq.client.impl.AMQChannel.handleCompleteInboundCommand(AMQChannel.java:144)
at com.rabbitmq.client.impl.AMQChannel.handleFrame(AMQChannel.java:91)
at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:533)
Note: I have the RabbitAdmin defined in the spring xml definitions as follows:
<bean id="admin" class="org.springframework.amqp.rabbit.core.RabbitAdmin">
<constructor-arg ref="rabbitConnectionFactory"/>
</bean>
I am not sure why the queues will get autocreated on one environment and not with the other.Any help with this will be great.
<rabbit:queue name="blah.blah.queue">
<rabbit:queue-arguments>
<entry key="x-ha-policy" value="all"/>
</rabbit:queue-arguments>
</rabbit:queue>
<rabbit:direct-exchange name="blah.blah.exchange">
<rabbit:bindings>
<rabbit:binding queue="blah.blah.queue" key="blah.blah.routing.key"/>
</rabbit:bindings>
</rabbit:direct-exchange>
*Added the queue declaration
Here are some more error logs:
2018-01-04 17:57:46,782 [instance=01] [SimpleAsyncTaskExecutor-1] ERROR org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer (SimpleMessageListenerContainer.java:562) - Consumer received fatal exception on startup
org.springframework.amqp.rabbit.listener.FatalListenerStartupException: Cannot prepare queue for listener. Either the queue doesn't exist or the broker will not allow us to use it.
at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.start(BlockingQueueConsumer.java:231)
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:527)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException
at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:106)
at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:102)
at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:124)
at com.rabbitmq.client.impl.ChannelN.queueDeclarePassive(ChannelN.java:790)
at com.rabbitmq.client.impl.ChannelN.queueDeclarePassive(ChannelN.java:61)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.amqp.rabbit.connection.CachingConnectionFactory$CachedChannelInvocationHandler.invoke(CachingConnectionFactory.java:348)
at com.sun.proxy.$Proxy89.queueDeclarePassive(Unknown Source)
at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.start(BlockingQueueConsumer.java:216)
... 2 more
Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; reason: {#method<channel.close>(reply-code=404, reply-text=NOT_FOUND - no queue 'blah.blah.queue' in vhost '/', class-id=50, method-id=10), null, ""}
at com.rabbitmq.utility.ValueOrException.getValue(ValueOrException.java:67)
at com.rabbitmq.utility.BlockingValueOrException.uninterruptibleGetValue(BlockingValueOrException.java:33)
at com.rabbitmq.client.impl.AMQChannel$BlockingRpcContinuation.getReply(AMQChannel.java:343)
at com.rabbitmq.client.impl.AMQChannel.privateRpc(AMQChannel.java:216)
at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:118)
... 11 more
Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; reason: {#method<channel.close>(reply-code=404, reply-text=NOT_FOUND - no queue 'blah.blah.queue' in vhost '/', class-id=50, method-id=10), null, ""}
at com.rabbitmq.client.impl.ChannelN.asyncShutdown(ChannelN.java:474)
at com.rabbitmq.client.impl.ChannelN.processAsync(ChannelN.java:315)
at com.rabbitmq.client.impl.AMQChannel.handleCompleteInboundCommand(AMQChannel.java:144)
at com.rabbitmq.client.impl.AMQChannel.handleFrame(AMQChannel.java:91)
at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:533)
.Adding some debug logs.. I have not yet been able to figure out the issue.
2018-01-18 16:16:21,583 [instance=01] [SimpleAsyncTaskExecutor-1] DEBUG org.springframework.amqp.rabbit.connection.CachingConnectionFactory (CachingConnectionFactory.java:188) - Creating cached Rabbit Channel from AMQChannel(amqp://guest#10.221.57.217:5672/,1)
2018-01-18 16:16:21,596 [instance=01] [SimpleAsyncTaskExecutor-1] DEBUG org.springframework.amqp.rabbit.core.RabbitTemplate (RabbitTemplate.java:625) - Executing callback on RabbitMQ Channel: Cached Rabbit Channel: AMQChannel(amqp://guest#10.221.57.217:5672/,1)
2018-01-18 16:16:21,596 [instance=01] [SimpleAsyncTaskExecutor-1] DEBUG org.springframework.amqp.rabbit.core.RabbitAdmin (RabbitAdmin.java:387) - declaring Exchange 'blah.blah.exchange'
2018-01-18 16:16:22,439 [instance=01] [SimpleAsyncTaskExecutor-1] DEBUG org.springframework.amqp.rabbit.connection.CachingConnectionFactory (CachingConnectionFactory.java:354) - Detected closed channel on exception. Re-initializing: null
2018-01-18 16:16:22,652 [instance=01] [RMI TCP Connection(3)-127.0.0.1] DEBUG org.springframework.context.support.DefaultLifecycleProcessor (DefaultLifecycleProcessor.java:170) - Starting bean 'blahblahlistener' of type [class org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer]
2018-01-18 16:16:22,652 [instance=01] [RMI TCP Connection(3)-127.0.0.1] DEBUG org.springframework.aop.framework.JdkDynamicAopProxy (JdkDynamicAopProxy.java:117) - Creating JDK dynamic proxy: target source is SingletonTargetSource for target object [org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$1#45ecefcc]
2018-01-18 16:16:22,652 [instance=01] [RMI TCP Connection(3)-127.0.0.1] DEBUG org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer (AbstractMessageListenerContainer.java:361) - Starting Rabbit listener container.
2018-01-18 16:16:22,653 [instance=01] [SimpleAsyncTaskExecutor-1] DEBUG org.springframework.amqp.rabbit.listener.BlockingQueueConsumer (BlockingQueueConsumer.java:198) - Starting consumer Consumer: tag=[null], channel=null, acknowledgeMode=AUTO local queue size=0
2018-01-18 16:16:23,078 [instance=01] [SimpleAsyncTaskExecutor-1] DEBUG org.springframework.amqp.rabbit.connection.CachingConnectionFactory (CachingConnectionFactory.java:354) - Detected closed channel on exception. Re-initializing: null
2018-01-18 16:16:23,290 [instance=01] [SimpleAsyncTaskExecutor-1] WARN org.springframework.amqp.rabbit.listener.BlockingQueueConsumer (BlockingQueueConsumer.java:222) - Reconnect failed; retries left=2
java.io.IOException
at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:106)
at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:102)
at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:124)
at com.rabbitmq.client.impl.ChannelN.queueDeclarePassive(ChannelN.java:790)
at com.rabbitmq.client.impl.ChannelN.queueDeclarePassive(ChannelN.java:61)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.amqp.rabbit.connection.CachingConnectionFactory$CachedChannelInvocationHandler.invoke(CachingConnectionFactory.java:348)
at com.sun.proxy.$Proxy89.queueDeclarePassive(Unknown Source)
at org.springframework.amqp.rabbit.listener.BlockingQueueConsumer.start(BlockingQueueConsumer.java:216)
at org.springframework.amqp.rabbit.listener.SimpleMessageListenerContainer$AsyncMessageProcessingConsumer.run(SimpleMessageListenerContainer.java:527)
at java.lang.Thread.run(Thread.java:748)
Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; reason: {#method<channel.close>(reply-code=404, reply-text=NOT_FOUND - no queue 'blah.blah.queue' in vhost '/', class-id=50, method-id=10), null, ""}
at com.rabbitmq.utility.ValueOrException.getValue(ValueOrException.java:67)
at com.rabbitmq.utility.BlockingValueOrException.uninterruptibleGetValue(BlockingValueOrException.java:33)
at com.rabbitmq.client.impl.AMQChannel$BlockingRpcContinuation.getReply(AMQChannel.java:343)
at com.rabbitmq.client.impl.AMQChannel.privateRpc(AMQChannel.java:216)
at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:118)
... 11 more
.

I was finally able to figure this out. Posting the answer here just in case it helps others who come across a similar situation:
I figured out that the app was declaring another pre-existing queue. However, this pre-existing queue had a dead-letter-routing-key defined in one environment and not in the other... inconsistency across environments. The xml did not have this argument defined. So it worked in the other environment and not in the 1st one. So before going ahead to create any of the non-existing queues, the rabbit channel was getting closed because the arguments mismatched.

Error initializing SparkContext. java.util.concurrent.TimeoutException: Futures timed out after [10000 milliseconds]

I am trying to create SparkContext object in below code from my Windows 10 Desktop:
import org.apache.spark.SparkConf;
import org.apache.spark.SparkContext;
public class MyTest{
public static void main(String args[]) {
SparkConf conf = new SparkConf().setAppName("");
conf.setMaster("local");
SparkContext sc = new SparkContext(conf);
}
}
Using maven dependencies:
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-core_2.10</artifactId>
<version>1.6.0-cdh5.8.3</version>
</dependency>
I have also set HADOOP_HOME=C:\winutil where C:\winutil\bin\winutils.exe is present of 64-bits.
While running the above code getting below error message:
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/C:/Users/farooque/.m2/repository/org/slf4j/slf4j-log4j12/1.7.5/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/C:/Users/farooque/.m2/repository/org/apache/logging/log4j/log4j-slf4j-impl/2.4.1/log4j-slf4j-impl-2.4.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
17/12/01 10:44:01 INFO spark.SparkContext: Running Spark version 1.6.0
17/12/01 10:46:00 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
17/12/01 10:46:28 INFO spark.SecurityManager: Changing view acls to: farooque
17/12/01 10:46:28 INFO spark.SecurityManager: Changing modify acls to: farooque
17/12/01 10:46:28 INFO spark.SecurityManager: SecurityManager: authentication disabled; ui acls disabled; users with view permissions: Set(farooque); users with modify permissions: Set(farooque)
17/12/01 10:47:36 INFO util.Utils: Successfully started service 'sparkDriver' on port 52602.
17/12/01 10:48:46 INFO slf4j.Slf4jLogger: Slf4jLogger started
17/12/01 10:48:57 INFO Remoting: Starting remoting
17/12/01 10:49:06 ERROR Remoting: Remoting error: [Startup timed out] [
akka.remote.RemoteTransportException: Startup timed out
at akka.remote.Remoting.akka$remote$Remoting$$notifyError(Remoting.scala:129)
at akka.remote.Remoting.start(Remoting.scala:191)
at akka.remote.RemoteActorRefProvider.init(RemoteActorRefProvider.scala:184)
at akka.actor.ActorSystemImpl._start$lzycompute(ActorSystem.scala:579)
at akka.actor.ActorSystemImpl._start(ActorSystem.scala:577)
at akka.actor.ActorSystemImpl.start(ActorSystem.scala:588)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:111)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:104)
at org.apache.spark.util.AkkaUtils$.org$apache$spark$util$AkkaUtils$$doCreateActorSystem(AkkaUtils.scala:121)
at org.apache.spark.util.AkkaUtils$$anonfun$1.apply(AkkaUtils.scala:53)
at org.apache.spark.util.AkkaUtils$$anonfun$1.apply(AkkaUtils.scala:52)
at org.apache.spark.util.Utils$$anonfun$startServiceOnPort$1.apply$mcVI$sp(Utils.scala:1989)
at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:141)
at org.apache.spark.util.Utils$.startServiceOnPort(Utils.scala:1980)
at org.apache.spark.util.AkkaUtils$.createActorSystem(AkkaUtils.scala:55)
at org.apache.spark.SparkEnv$.create(SparkEnv.scala:266)
at org.apache.spark.SparkEnv$.createDriverEnv(SparkEnv.scala:193)
at org.apache.spark.SparkContext.createSparkEnv(SparkContext.scala:289)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:462)
at com.xyz.module.submodule.incoming.test.validator.MyTest.main(MyTest.java:11)
Caused by: java.util.concurrent.TimeoutException: Futures timed out after [10000 milliseconds]
at scala.concurrent.impl.Promise$DefaultPromise.ready(Promise.scala:219)
at scala.concurrent.impl.Promise$DefaultPromise.result(Promise.scala:223)
at scala.concurrent.Await$$anonfun$result$1.apply(package.scala:107)
at scala.concurrent.BlockContext$DefaultBlockContext$.blockOn(BlockContext.scala:53)
at scala.concurrent.Await$.result(package.scala:107)
at akka.remote.Remoting.start(Remoting.scala:173)
... 18 more
]
17/12/01 10:49:06 ERROR spark.SparkContext: Error initializing SparkContext.
java.util.concurrent.TimeoutException: Futures timed out after [10000 milliseconds]
at scala.concurrent.impl.Promise$DefaultPromise.ready(Promise.scala:219)
at scala.concurrent.impl.Promise$DefaultPromise.result(Promise.scala:223)
at scala.concurrent.Await$$anonfun$result$1.apply(package.scala:107)
at scala.concurrent.BlockContext$DefaultBlockContext$.blockOn(BlockContext.scala:53)
at scala.concurrent.Await$.result(package.scala:107)
at akka.remote.Remoting.start(Remoting.scala:173)
at akka.remote.RemoteActorRefProvider.init(RemoteActorRefProvider.scala:184)
at akka.actor.ActorSystemImpl._start$lzycompute(ActorSystem.scala:579)
at akka.actor.ActorSystemImpl._start(ActorSystem.scala:577)
at akka.actor.ActorSystemImpl.start(ActorSystem.scala:588)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:111)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:104)
at org.apache.spark.util.AkkaUtils$.org$apache$spark$util$AkkaUtils$$doCreateActorSystem(AkkaUtils.scala:121)
at org.apache.spark.util.AkkaUtils$$anonfun$1.apply(AkkaUtils.scala:53)
at org.apache.spark.util.AkkaUtils$$anonfun$1.apply(AkkaUtils.scala:52)
at org.apache.spark.util.Utils$$anonfun$startServiceOnPort$1.apply$mcVI$sp(Utils.scala:1989)
at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:141)
at org.apache.spark.util.Utils$.startServiceOnPort(Utils.scala:1980)
at org.apache.spark.util.AkkaUtils$.createActorSystem(AkkaUtils.scala:55)
at org.apache.spark.SparkEnv$.create(SparkEnv.scala:266)
at org.apache.spark.SparkEnv$.createDriverEnv(SparkEnv.scala:193)
at org.apache.spark.SparkContext.createSparkEnv(SparkContext.scala:289)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:462)
at com.xyz.module.submodule.incoming.test.validator.MyTest.main(MyTest.java:11)
17/12/01 10:49:08 INFO spark.SparkContext: Successfully stopped SparkContext
Exception in thread "main" java.util.concurrent.TimeoutException: Futures timed out after [10000 milliseconds]
at scala.concurrent.impl.Promise$DefaultPromise.ready(Promise.scala:219)
at scala.concurrent.impl.Promise$DefaultPromise.result(Promise.scala:223)
at scala.concurrent.Await$$anonfun$result$1.apply(package.scala:107)
at scala.concurrent.BlockContext$DefaultBlockContext$.blockOn(BlockContext.scala:53)
at scala.concurrent.Await$.result(package.scala:107)
at akka.remote.Remoting.start(Remoting.scala:173)
at akka.remote.RemoteActorRefProvider.init(RemoteActorRefProvider.scala:184)
at akka.actor.ActorSystemImpl._start$lzycompute(ActorSystem.scala:579)
at akka.actor.ActorSystemImpl._start(ActorSystem.scala:577)
at akka.actor.ActorSystemImpl.start(ActorSystem.scala:588)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:111)
at akka.actor.ActorSystem$.apply(ActorSystem.scala:104)
at org.apache.spark.util.AkkaUtils$.org$apache$spark$util$AkkaUtils$$doCreateActorSystem(AkkaUtils.scala:121)
at org.apache.spark.util.AkkaUtils$$anonfun$1.apply(AkkaUtils.scala:53)
at org.apache.spark.util.AkkaUtils$$anonfun$1.apply(AkkaUtils.scala:52)
at org.apache.spark.util.Utils$$anonfun$startServiceOnPort$1.apply$mcVI$sp(Utils.scala:1989)
at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:141)
at org.apache.spark.util.Utils$.startServiceOnPort(Utils.scala:1980)
at org.apache.spark.util.AkkaUtils$.createActorSystem(AkkaUtils.scala:55)
at org.apache.spark.SparkEnv$.create(SparkEnv.scala:266)
at org.apache.spark.SparkEnv$.createDriverEnv(SparkEnv.scala:193)
at org.apache.spark.SparkContext.createSparkEnv(SparkContext.scala:289)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:462)
at com.xyz.module.submodule.incoming.test.validator.MyTest.main(MyTest.java:11)
Not being able to create Spark context object. Error is thrown at SparkContext sc = new SparkContext(conf);. Looking for the help!!!

This issue got resolved!
Let me share the real cause and how it got resolved?
Initially the code was present in a network drive(say Z:\workspace\...) but execution of the code was happening locally on the machine. To create a SparkContext object by taking the code from network drive [Startup timed out] was happening, (assumption slow network speed)causes the issue.
Solution:
So I moved the code in local drive(say C:\Users\farooque\workspace\...) and ran the code again, now SparkContext got created successfully. Hence the issue got resolved!