I am trying to inject the MQQueueConnectionFactory defined as a JNDI resource into my spring configuration using #Resource. I am getting a ClassCastException while doing this.
I am really confused on how to solve this. I am using JDK7 and spring 4.1.6.RELEASE. The MQ client is installed in a standard way and exported to tomcat classpath.
[ERROR] [TokenId=] [2015-05-29 21:33:53.496] [DispatcherServlet] - [Context initialization failed]
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'messagingConfig': Injection of resource dependencies failed; nested exception is org.
springframework.beans.factory.BeanNotOfRequiredTypeException: Bean named 'java:comp/env/jms/SSAJMSQueueConnectionFactory' must be of type [javax.jms.ConnectionFactory], but
was actually of type [com.ibm.mq.jms.MQQueueConnectionFactory]
When you see a ClassCastException which doesn't make sense, where you know for example that MQQueueConnectionFactory is an extension of ConnectionFactory, then it usually points to a classloader problem.
In most cases MQQueueConnectionFactory has been loaded with a different classloader to ConnectionFactory - this will cause a ClassCastException if you attempt to cast one to another even though you'd expect it to work.
Related
I would like to add the retry feature for database connection certain number of times until the app acquires it. For the I have used the spring-retry on the DataSource but it is not working. It is throwing the following error
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'jdbcTemplate' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/JdbcTemplateConfiguration.class]: Unsatisfied dependency expressed through method 'jdbcTemplate' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]: Initialization of bean failed; nested exception is java.lang.IllegalArgumentException: ExistingValue must be an instance of com.zaxxer.hikari.HikariDataSource
I have seen the debug logs but those are not helpful. Here is the sample source code . kindly help
Note: the dependencies mentioned in build.gradle is required for my app. I have only extracted the retry part.
Your use-case is delaying the start of Spring Boot until your database is up. Spring actually ships with a component that does that. The DatabaseStartupValidator is that component and has existed since about Spring 1.x.
You can add it as a bean and it will wait for further bootstrapping until the database is up.
#Bean
public DatabaseStartupValidator databaseStartupValidator(DataSource dataSource) {
var dsv = new DatabaseStartupValidator();
dsv.setDataSource(dataSource);
return dsv;
}
For a more detailed explanation see this blog post of mine.
I am using a third-party package in my spring boot app. This one to be specific. This package has a method that creates a bean when the application starts. The bean is only created successfully if this package is able to talk to nats service. In most cases, this all works fine. The remote server is available, the bean is created, my spring boot apps boots up correctly.
But there are some edge cases when remote nats servers might not be up. This causes my spring boot app to fail to start as the above function throws BeanCreationException
How can I avoid this i.e avoid my spring app boot failure due to this exception when the nats server is not up?
Note: It is fine for my spring app/business logic to be up and running if this bean (connections to nats service) is not available.
Specific Exception :
org.springframework.beans.factory.BeanCreationException:
Error creating bean with name 'natsConnection' defined in class path resource [io/nats/spring/boot/autoconfigure/NatsAutoConfiguration.class]:
Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [io.nats.client.Connection]:
Factory method 'natsConnection' threw exception; nested exception is java.io.IOException: Unable to connect to NATS server.\n\tat org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:655)\n\tat org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:635)\n\tat org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1336)\n\tat org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1176)\n\tat org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:556)\n\tat org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516)\n\tat org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324)\n\tat org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)\n\tat org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322)\n\tat org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)\n\tat org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:897)\n\tat org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879)\n\tat
The bean natsConnection is created by auto-configuration and annotated with #ConditionalOnMissingBean. Such beans are instantiated after your own beans.
You can create your own bean of this type, io.nats.client.Connection, and register it as natsConnection. This bean should have no own logic. When called for the first time, it should create a worker instance via NatsAutoConfiguration.natsConnection(...) and then delegate all calls to it.
Because of #ConditionalOnMissingBean the default bean from the NATS library will not be instantiated and only your bean will be created.
I configured two data sources in my app following the guide of spring example:https://github.com/spring-cloud/spring-cloud-task/blob/master/spring-cloud-task-samples/multiple-datasources.
The spring boot version I use is :2.0.0.RELEASE
The spring.cloud.task.version I use is :1.2.2.RELEASE.
This application works fine in my local computer, But when deploy to the to AWS, I got the following error with the defination of class:CustomTaskConfigurer.java.
which defined the same as here:https://github.com/spring-cloud/spring-cloud-task/blob/master/spring-cloud-task-samples/multiple-datasources/src/main/java/io/spring/configuration/CustomTaskConfigurer.java
The error message is like below:
exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.cloud.task.configuration.SimpleTaskConfiguration': Invocation of init method failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'customTaskConfigurer' defined in file [/home/vcap/app/BOOT-INF/classes/com/xxx/configuration/CustomTaskConfigurer.class]: Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.xxx.configuration.CustomTaskConfigurer$$EnhancerBySpringCGLIB$$bc80cd46]: Constructor threw exception; nested exception is java.lang.IllegalStateException: Unable to create a TaskExecutionDao.
The root cause for this error is that when I developed the application locally I configure a local datasource bean for postgresql like below:
#Bean
#Primary
#ConfigurationProperties("spring.datasource")
public HikariDataSource sourceDataSource() {
return DataSourceBuilder.create().type(HikariDataSource.class).build();
}
This bean read the properties in the application.properties file which identify the username and password url for the local postgres.
When This application deloyed to cloud,It will connect to the cloud data base instead of the local databases, which means the url,username,and password are no longer correct.
After add the configuration for cloud, this error disppeared.
But this exception stack trace only tell you that it is unable to create taskExecutionDao, It is really hard for the user to fix the issue when see such a error message
If it is a multiple datasource issue, you can try marking it as #Primary. Providing a better stack trace is helpful.
When I build and deploy my spring based Application with
java version "1.8.0_112" it compiles and deploys fine.
Also, if i compile with java version "1.8.0_121", and deploy with
java version "1.8.0_112" that works too.
But when I compile and deploy the same Application with
java version "1.8.0_121"
it gives me an error for one service:
Error creating bean with name 'namesServiceImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private a.b.c.backend.services.account.PersonService a.b.c.backend.services.serviceimpl.NamesServiceImpl.personService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'CISExpressionHandler' defined in URL
[jar:file:/usr/local/tomcat7-7/webapps/ServicesApp/WEB-INF/lib/E2Services.jar!/META-INF/spring/applicationContext-security.xml]: Cannot resolve reference to bean 'CISPermissionEvaluator' while setting bean property 'permissionEvaluator'; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'CISPermissionEvaluator': Requested bean is currently in creation: Is there an unresolvable circular reference?
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private a.b.c.backend.services.ciscase.CaseService a.b.c.backend.services.security.permissionEvaluators.CaseOwnerPermission.caseService; nested exception is org.springframework.beans.factory.BeanCreationException
One explanation, I could find was:
The exception may or may not occur depends on the creation order of beans. We load them with config something like below in web.xml
(/usr/local/tomcat7-7/webapps/ServicesApp/WEB-INF/web.xml)
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:META-INF/spring/applicationContext*.xml</param-value>
</context-param>
The XML files will be loaded by XmlWebApplicationContext class and the loading order of files are not guaranteed.
It just loads files from the file system. The problem is here.
There's no problem if the class loads the application context file first, because your beans are already created when they are used for the construction injection of Spring Security. But, if it loads the Spring Security context file first, the circular reference problem occurs, because Spring tries to use your beans in the constructor injection before they had been created.
How to solve the problem?
Force the loading order of the xml files. loading the security context xml file at the end of the application context file by using
<import resource="applicationContext-security.xml">.
Now how this got introduced with JDK version change? I don't have an explanation for that
ref: Splitting applicationContext to multiple files
Q: How do i get the order of beans at deployment ?
I am working on an app that uses a mongodb, is built in grails, and is using oauth2 as an authentication service. I have the services and controller built out (I think) and am trying to run my server to manually test connectivity with google. I am running into an "Error creating bean with name transactionManagerPostProcessor..." that I can't solve. I know I need to either install a plug-in that takes care of the "transactions" for me, or create a bean in resources.groovy.
I have done a lot of researching and reading up on this, but I have been at a dead end for the last couple days trying to get this implemented. Can someone tell me how to solve this problem, create the correct bean, or install the correct plug-in? Partial stack trace below, with link to full stack trace:
|Loading Grails 2.3.4
|Configuring classpath
.
|Environment set to development
.................................
|Packaging Grails application
............................................
|Running Grails application
Configuring Spring Security Core ...
... finished configuring Spring Security Core
Error |
2014-01-16 09:30:52,840 [localhost-startStop-1] ERROR context.GrailsContextLoader - Error initializing the application: Error creating bean with name 'transactionManagerPostProcessor': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongoTransactionManager': Cannot resolve reference to bean 'mongoDatastore' while setting bean property 'datastore'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongoDatastore': Cannot resolve reference to bean 'mongoMappingContext' while setting bean property 'mappingContext'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongoMappingContext': FactoryBean threw exception on object creation; nested exception is java.lang.NoClassDefFoundError: org/springframework/format/datetime/DateFormatterRegistrar
Full stacktrace can be found at: http://pastebin.com/5mW5uwtu
I have tried adding
static transaction = 'mongo'
to the service that calls google to authenticate the user. This is a solution I found on a similiar question on stackoverflow. I have also fiddled with different plugins and dependencies in my build-config. Not sure what else there is to try.
Thank you!
To work around this issue with some plugins, I've added the following to the beans block in resources.groovy
// some plugins need a transaction manager,
// although the mongo one isn't properly transactional
// and could produce unexpected results in some cases.
springConfig.addAlias('transactionManager', 'mongoTransactionManager')
However, the specific error you're seeing relates to the Spring class DateFormatterRegistrar not being found. Are you using an up-to-date version of Grails (e.g. 2.3+) and the mongo plugin? Have you added the mongo plugin as a compile plugin dependency in BuildConfig?:
compile ":mongodb:1.3.3"