Clover instrumented code fails to connect application database

I have a web application deployed as war in tomcat in instrumented jars in it. Strangely I observe that the instrumented code throwing exception that connection to db fails.

I followed the link https://answers.atlassian.com/questions/129283

Is this because there is degreadation in performance of the instrumented code? Anybody else has seen this behavior especially with hsqldb?

2 answers

0 vote

Could you paste a stack trace?

Here is the stacktrace:

WARN: HHH000342: Could not obtain connection to query metadata : java.net.ConnectException: Connection refused: connect
Nov 28, 2014 09:23:03 PM org.hibernate.tool.hbm2ddl.SchemaUpdate execute():201 
ERROR: HHH000319: Could not get database metadata
java.sql.SQLTransientConnectionException: java.net.ConnectException: Connection refused: connect
    at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source) ~[hsqldb-2.3.0.jar:2.3.0]
    at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source) ~[hsqldb-2.3.0.jar:2.3.0]
    at org.hsqldb.jdbc.JDBCConnection.<init>(Unknown Source) ~[hsqldb-2.3.0.jar:2.3.0]
    at org.hsqldb.jdbc.JDBCDriver.getConnection(Unknown Source) ~[hsqldb-2.3.0.jar:2.3.0]
    at org.hsqldb.jdbc.JDBCDriver.connect(Unknown Source) ~[hsqldb-2.3.0.jar:2.3.0]
    at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:119) ~[c3p0-0.9.1.2.jar:0.9.1.2]
  
  at 
com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:143)
 ~[c3p0-0.9.1.2.jar:0.9.1.2]
    at 
com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:132)
 ~[c3p0-0.9.1.2.jar:0.9.1.2]
    at 
com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.initializeAutomaticTestTable(C3P0PooledConnectionPoolManager.java:772)
 ~[c3p0-0.9.1.2.jar:0.9.1.2]
    at 
com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.createPooledConnectionPool(C3P0PooledConnectionPoolManager.java:696)
 ~[c3p0-0.9.1.2.jar:0.9.1.2]
    at 
com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.getPool(C3P0PooledConnectionPoolManager.java:257)
 ~[c3p0-0.9.1.2.jar:0.9.1.2]
    at 
com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.getPool(C3P0PooledConnectionPoolManager.java:271)
 ~[c3p0-0.9.1.2.jar:0.9.1.2]
    at 
com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128)
 ~[c3p0-0.9.1.2.jar:0.9.1.2]
    at 
org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:70)
 ~[hibernate-entitymanager-4.1.2.jar:4.1.2]
    at 
org.hibernate.tool.hbm2ddl.SuppliedConnectionProviderConnectionHelper.prepare(SuppliedConnectionProviderConnectionHelper.java:51)
 ~[hibernate-core-4.1.2.jar:4.1.2]
    at org.hibernate.tool.hbm2ddl.SchemaUpdate.execute(SchemaUpdate.java:194) ~[hibernate-core-4.1.2.jar:4.1.2]
    at org.hibernate.tool.hbm2ddl.SchemaUpdate.execute(SchemaUpdate.java:178) ~[hibernate-core-4.1.2.jar:4.1.2]
    at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:495) ~[hibernate-core-4.1.2.jar:4.1.2]
    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1741) ~[hibernate-core-4.1.2.jar:4.1.2]
  
  at 
org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:93)
 ~[hibernate-entitymanager-4.1.2.jar:4.1.2]
    at 
org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:905)
 [hibernate-entitymanager-4.1.2.jar:4.1.2]
    at 
org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:890)
 [hibernate-entitymanager-4.1.2.jar:4.1.2]
    at 
org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:74)
 [hibernate-entitymanager-4.1.2.jar:4.1.2]
    at 
org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:225)
 [spring-orm-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:308)
 [spring-orm-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findDefaultEntityManagerFactory(PersistenceAnnotationBeanPostProcessor.java:529)
 [spring-orm-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findEntityManagerFactory(PersistenceAnnotationBeanPostProcessor.java:495)
 [spring-orm-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor$PersistenceElement.resolveEntityManager(PersistenceAnnotationBeanPostProcessor.java:656)
 [spring-orm-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor$PersistenceElement.getResourceToInject(PersistenceAnnotationBeanPostProcessor.java:629)
 [spring-orm-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:147)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessPropertyValues(PersistenceAnnotationBeanPostProcessor.java:338)
 [spring-orm-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1074)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:844)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:786)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:703)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:474)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:282)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1074)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:844)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:786)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:703)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:474)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:282)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1074)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580)
 [spring-beans-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
 [spring-context-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
 [spring-context-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)
 [spring-web-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197)
 [spring-web-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at 
org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
 [spring-web-3.0.5.RELEASE.jar:3.0.5.RELEASE]
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4887) [catalina.jar:7.0.41]
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5381) [catalina.jar:7.0.41]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [catalina.jar:7.0.41]
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) [catalina.jar:7.0.41]
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) [catalina.jar:7.0.41]
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633) [catalina.jar:7.0.41]
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:976) [catalina.jar:7.0.41]
    at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1653) [catalina.jar:7.0.41]
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [na:1.7.0_45]
    at java.util.concurrent.FutureTask.run(Unknown Source) [na:1.7.0_45]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na:1.7.0_45]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.7.0_45]
    at java.lang.Thread.run(Unknown Source) [na:1.7.0_45]
Caused by: org.hsqldb.HsqlException: java.net.ConnectException: Connection refused: connect
    at org.hsqldb.ClientConnection.openConnection(Unknown Source) ~[hsqldb-2.3.0.jar:2.3.0]
    at org.hsqldb.ClientConnection.initConnection(Unknown Source) ~[hsqldb-2.3.0.jar:2.3.0]
    at org.hsqldb.ClientConnection.<init>(Unknown Source) ~[hsqldb-2.3.0.jar:2.3.0]
    ... 90 common frames omitted
Caused by: java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.connect0(Native Method) ~[na:1.7.0_45]
    at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source) ~[na:1.7.0_45]
    at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source) ~[na:1.7.0_45]
    at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source) ~[na:1.7.0_45]
    at java.net.AbstractPlainSocketImpl.connect(Unknown Source) ~[na:1.7.0_45]
    at java.net.PlainSocketImpl.connect(Unknown Source) ~[na:1.7.0_45]
    at java.net.SocksSocketImpl.connect(Unknown Source) ~[na:1.7.0_45]
    at java.net.Socket.connect(Unknown Source) ~[na:1.7.0_45]
    at java.net.Socket.connect(Unknown Source) ~[na:1.7.0_45]
    at java.net.Socket.<init>(Unknown Source) ~[na:1.7.0_45]
    at java.net.Socket.<init>(Unknown Source) ~[na:1.7.0_45]
    at org.hsqldb.server.HsqlSocketFactory.createSocket(Unknown Source) ~[hsqldb-2.3.0.jar:2.3.0]
    ... 93 common frames omitted

I see nothing related with Clover in this stack trace. Are you trying to connect to HSQLDB running on a localhost? Is HSQLB running at the moment when this error occurs? For me, it looks like socket connection just failed because no service was running on specified port...

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