I created a project with Spring Initializr. I know the Spring annotation @ComponentScan is repeatable. I tried to add @ComponentScan ("*. *") to the SpringBook startup class (we do have such scenes), and my application failed to start properly.
- Code
@ComponentScan("*.*")
@SpringBootApplication
public class SpringBootMainApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootMainApplication.class, args);
}
}
- Starting result
org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: URL [jar:file:/Users/zhouchaoqun/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/1.5.10.RELEASE/spring-boot-autoconfigure-1.5.10.RELEASE.jar!/org/springframework/boot/autoconfigure/jdbc/DataSourceAutoConfiguration$EmbeddedDatabaseConfiguration.class]; nested exception is java.lang.IllegalStateException: Could not evaluate condition on org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$EmbeddedDatabaseConfiguration due to org/springframework/jdbc/datasource/embedded/EmbeddedDatabaseType not found. Make sure your own configuration does not rely on that class. This can also happen if you are @ComponentScanning a springframework package (e.g. if you put a @ComponentScan in the default package by mistake)
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:311) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:272) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ComponentScanAnnotationParser.parse(ComponentScanAnnotationParser.java:135) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:287) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:198) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:167) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:308) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:228) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:272) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:92) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:687) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:525) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at com.shermanzhou.SpringBootMainApplication.main(SpringBootMainApplication.java:22) [classes/:na]
Caused by: java.lang.IllegalStateException: Could not evaluate condition on org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$EmbeddedDatabaseConfiguration due to org/springframework/jdbc/datasource/embedded/EmbeddedDatabaseType not found. Make sure your own configuration does not rely on that class. This can also happen if you are @ComponentScanning a springframework package (e.g. if you put a @ComponentScan in the default package by mistake)
at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:55) ~[spring-boot-autoconfigure-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:102) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:81) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:64) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.isConditionMatch(ClassPathScanningCandidateComponentProvider.java:371) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.isCandidateComponent(ClassPathScanningCandidateComponentProvider.java:355) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:288) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
... 19 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/springframework/jdbc/datasource/embedded/EmbeddedDatabaseType
at org.springframework.boot.autoconfigure.jdbc.EmbeddedDatabaseConnection.<clinit>(EmbeddedDatabaseConnection.java:49) ~[spring-boot-autoconfigure-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$EmbeddedDatabaseCondition.getMatchOutcome(DataSourceAutoConfiguration.java:211) ~[spring-boot-autoconfigure-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47) ~[spring-boot-autoconfigure-1.5.10.RELEASE.jar:1.5.10.RELEASE]
I guess this is probably because I scanned a wide range including the autoconfig package, so that these AutoConfiguration classes could not loaded into the Spring container as the specified order. Is this a defect or well-designed feature?
Thanks.
Comment From: wilkinsona
There should be a warning message logged that states that your application is unlikely to start due to the packages that it has been configured to scan. Can you please share the full output?
Comment From: ZhouChaoqun
There should be a warning message logged that states that your application is unlikely to start due to the packages that it has been configured to scan. Can you please share the full output?
debug=true is set
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.5.10.RELEASE)
2019-03-01 15:32:42.211 INFO 12943 --- [ main] c.shermanzhou.SpringBootMainApplication : Starting SpringBootMainApplication on zcq-MacBook-Pro.local with PID 12943 (/Users/zhouchaoqun/Projects/java/spring-boot-01-helloworld/target/classes started by zhouchaoqun in /Users/zhouchaoqun/Projects/java/spring-boot-01-helloworld)
2019-03-01 15:32:42.211 INFO 12943 --- [ main] c.shermanzhou.SpringBootMainApplication : The following profiles are active: prod
2019-03-01 15:32:42.211 DEBUG 12943 --- [ main] o.s.boot.SpringApplication : Loading source class com.shermanzhou.SpringBootMainApplication
2019-03-01 15:32:42.256 DEBUG 12943 --- [ main] o.s.b.c.c.ConfigFileApplicationListener : Loaded config file 'file:/Users/zhouchaoqun/Projects/java/spring-boot-01-helloworld/target/classes/application.properties' (classpath:/application.properties)
2019-03-01 15:32:42.257 DEBUG 12943 --- [ main] o.s.b.c.c.ConfigFileApplicationListener : Activated profiles prod
2019-03-01 15:32:42.257 DEBUG 12943 --- [ main] o.s.b.c.c.ConfigFileApplicationListener : Loaded config file 'file:/Users/zhouchaoqun/Projects/java/spring-boot-01-helloworld/target/classes/application.yml' (classpath:/application.yml)
2019-03-01 15:32:42.257 DEBUG 12943 --- [ main] o.s.b.c.c.ConfigFileApplicationListener : Loaded config file 'file:/Users/zhouchaoqun/Projects/java/spring-boot-01-helloworld/target/classes/application-prod.properties' (classpath:/application-prod.properties)
2019-03-01 15:32:42.257 DEBUG 12943 --- [ main] o.s.b.c.c.ConfigFileApplicationListener : Skipped (empty) config file 'file:/Users/zhouchaoqun/Projects/java/spring-boot-01-helloworld/target/classes/application-prod.properties' (classpath:/application-prod.properties) for profile prod
2019-03-01 15:32:42.257 DEBUG 12943 --- [ main] o.s.b.c.c.ConfigFileApplicationListener : Skipped (empty) config file 'file:/Users/zhouchaoqun/Projects/java/spring-boot-01-helloworld/target/classes/application.properties' (classpath:/application.properties) for profile prod
2019-03-01 15:32:42.257 DEBUG 12943 --- [ main] o.s.b.c.c.ConfigFileApplicationListener : Loaded config file 'file:/Users/zhouchaoqun/Projects/java/spring-boot-01-helloworld/target/classes/application.yml' (classpath:/application.yml) for profile prod
2019-03-01 15:32:42.261 INFO 12943 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@3427b02d: startup date [Fri Mar 01 15:32:42 CST 2019]; root of context hierarchy
2019-03-01 15:32:42.262 DEBUG 12943 --- [ main] ationConfigEmbeddedWebApplicationContext : Bean factory for org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@3427b02d: org.springframework.beans.factory.support.DefaultListableBeanFactory@609cd4d8: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,springBootMainApplication]; root of factory hierarchy
2019-03-01 15:32:46.919 WARN 12943 --- [ main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: URL [jar:file:/Users/zhouchaoqun/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/1.5.10.RELEASE/spring-boot-autoconfigure-1.5.10.RELEASE.jar!/org/springframework/boot/autoconfigure/jdbc/DataSourceAutoConfiguration$EmbeddedDatabaseConfiguration.class]; nested exception is java.lang.IllegalStateException: Could not evaluate condition on org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$EmbeddedDatabaseConfiguration due to org/springframework/jdbc/datasource/embedded/EmbeddedDatabaseType not found. Make sure your own configuration does not rely on that class. This can also happen if you are @ComponentScanning a springframework package (e.g. if you put a @ComponentScan in the default package by mistake)
2019-03-01 15:32:46.922 DEBUG 12943 --- [ main] .b.l.ClasspathLoggingApplicationListener : Application failed to start with classpath: [file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/charsets.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/deploy.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/cldrdata.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/dnsns.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/jaccess.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/jfxrt.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/localedata.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/nashorn.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/sunec.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/sunjce_provider.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/sunpkcs11.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/zipfs.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/javaws.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/jce.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/jfr.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/jfxswt.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/jsse.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/management-agent.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/plugin.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/resources.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/rt.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/ant-javafx.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/dt.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/javafx-mx.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/jconsole.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/packager.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/sa-jdi.jar, file:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/tools.jar, file:/Users/zhouchaoqun/Projects/java/spring-boot-01-helloworld/target/classes/, file:/Users/zhouchaoqun/.m2/repository/org/springframework/boot/spring-boot-starter-web/1.5.10.RELEASE/spring-boot-starter-web-1.5.10.RELEASE.jar, file:/Users/zhouchaoqun/.m2/repository/org/springframework/boot/spring-boot-starter/1.5.10.RELEASE/spring-boot-starter-1.5.10.RELEASE.jar, file:/Users/zhouchaoqun/.m2/repository/org/springframework/boot/spring-boot/1.5.10.RELEASE/spring-boot-1.5.10.RELEASE.jar, file:/Users/zhouchaoqun/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/1.5.10.RELEASE/spring-boot-autoconfigure-1.5.10.RELEASE.jar, file:/Users/zhouchaoqun/.m2/repository/org/springframework/boot/spring-boot-starter-logging/1.5.10.RELEASE/spring-boot-starter-logging-1.5.10.RELEASE.jar, file:/Users/zhouchaoqun/.m2/repository/ch/qos/logback/logback-classic/1.1.11/logback-classic-1.1.11.jar, file:/Users/zhouchaoqun/.m2/repository/ch/qos/logback/logback-core/1.1.11/logback-core-1.1.11.jar, file:/Users/zhouchaoqun/.m2/repository/org/slf4j/jcl-over-slf4j/1.7.25/jcl-over-slf4j-1.7.25.jar, file:/Users/zhouchaoqun/.m2/repository/org/slf4j/jul-to-slf4j/1.7.25/jul-to-slf4j-1.7.25.jar, file:/Users/zhouchaoqun/.m2/repository/org/slf4j/log4j-over-slf4j/1.7.25/log4j-over-slf4j-1.7.25.jar, file:/Users/zhouchaoqun/.m2/repository/org/yaml/snakeyaml/1.17/snakeyaml-1.17.jar, file:/Users/zhouchaoqun/.m2/repository/org/springframework/boot/spring-boot-starter-tomcat/1.5.10.RELEASE/spring-boot-starter-tomcat-1.5.10.RELEASE.jar, file:/Users/zhouchaoqun/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/8.5.27/tomcat-embed-core-8.5.27.jar, file:/Users/zhouchaoqun/.m2/repository/org/apache/tomcat/tomcat-annotations-api/8.5.27/tomcat-annotations-api-8.5.27.jar, file:/Users/zhouchaoqun/.m2/repository/org/apache/tomcat/embed/tomcat-embed-el/8.5.27/tomcat-embed-el-8.5.27.jar, file:/Users/zhouchaoqun/.m2/repository/org/apache/tomcat/embed/tomcat-embed-websocket/8.5.27/tomcat-embed-websocket-8.5.27.jar, file:/Users/zhouchaoqun/.m2/repository/org/hibernate/hibernate-validator/5.3.6.Final/hibernate-validator-5.3.6.Final.jar, file:/Users/zhouchaoqun/.m2/repository/javax/validation/validation-api/1.1.0.Final/validation-api-1.1.0.Final.jar, file:/Users/zhouchaoqun/.m2/repository/org/jboss/logging/jboss-logging/3.3.1.Final/jboss-logging-3.3.1.Final.jar, file:/Users/zhouchaoqun/.m2/repository/com/fasterxml/classmate/1.3.4/classmate-1.3.4.jar, file:/Users/zhouchaoqun/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.8.10/jackson-databind-2.8.10.jar, file:/Users/zhouchaoqun/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.8.0/jackson-annotations-2.8.0.jar, file:/Users/zhouchaoqun/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.8.10/jackson-core-2.8.10.jar, file:/Users/zhouchaoqun/.m2/repository/org/springframework/spring-web/4.3.14.RELEASE/spring-web-4.3.14.RELEASE.jar, file:/Users/zhouchaoqun/.m2/repository/org/springframework/spring-aop/4.3.14.RELEASE/spring-aop-4.3.14.RELEASE.jar, file:/Users/zhouchaoqun/.m2/repository/org/springframework/spring-beans/4.3.14.RELEASE/spring-beans-4.3.14.RELEASE.jar, file:/Users/zhouchaoqun/.m2/repository/org/springframework/spring-context/4.3.14.RELEASE/spring-context-4.3.14.RELEASE.jar, file:/Users/zhouchaoqun/.m2/repository/org/springframework/spring-webmvc/4.3.14.RELEASE/spring-webmvc-4.3.14.RELEASE.jar, file:/Users/zhouchaoqun/.m2/repository/org/springframework/spring-expression/4.3.14.RELEASE/spring-expression-4.3.14.RELEASE.jar, file:/Users/zhouchaoqun/.m2/repository/org/springframework/boot/spring-boot-starter-test/1.5.10.RELEASE/spring-boot-starter-test-1.5.10.RELEASE.jar, file:/Users/zhouchaoqun/.m2/repository/org/springframework/boot/spring-boot-test/1.5.10.RELEASE/spring-boot-test-1.5.10.RELEASE.jar, file:/Users/zhouchaoqun/.m2/repository/org/springframework/boot/spring-boot-test-autoconfigure/1.5.10.RELEASE/spring-boot-test-autoconfigure-1.5.10.RELEASE.jar, file:/Users/zhouchaoqun/.m2/repository/com/jayway/jsonpath/json-path/2.2.0/json-path-2.2.0.jar, file:/Users/zhouchaoqun/.m2/repository/net/minidev/json-smart/2.2.1/json-smart-2.2.1.jar, file:/Users/zhouchaoqun/.m2/repository/net/minidev/accessors-smart/1.1/accessors-smart-1.1.jar, file:/Users/zhouchaoqun/.m2/repository/org/ow2/asm/asm/5.0.3/asm-5.0.3.jar, file:/Users/zhouchaoqun/.m2/repository/org/slf4j/slf4j-api/1.7.25/slf4j-api-1.7.25.jar, file:/Users/zhouchaoqun/.m2/repository/junit/junit/4.12/junit-4.12.jar, file:/Users/zhouchaoqun/.m2/repository/org/assertj/assertj-core/2.6.0/assertj-core-2.6.0.jar, file:/Users/zhouchaoqun/.m2/repository/org/mockito/mockito-core/1.10.19/mockito-core-1.10.19.jar, file:/Users/zhouchaoqun/.m2/repository/org/objenesis/objenesis/2.1/objenesis-2.1.jar, file:/Users/zhouchaoqun/.m2/repository/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar, file:/Users/zhouchaoqun/.m2/repository/org/hamcrest/hamcrest-library/1.3/hamcrest-library-1.3.jar, file:/Users/zhouchaoqun/.m2/repository/org/skyscreamer/jsonassert/1.4.0/jsonassert-1.4.0.jar, file:/Users/zhouchaoqun/.m2/repository/com/vaadin/external/google/android-json/0.0.20131108.vaadin1/android-json-0.0.20131108.vaadin1.jar, file:/Users/zhouchaoqun/.m2/repository/org/springframework/spring-core/4.3.14.RELEASE/spring-core-4.3.14.RELEASE.jar, file:/Users/zhouchaoqun/.m2/repository/org/springframework/spring-test/4.3.14.RELEASE/spring-test-4.3.14.RELEASE.jar]
2019-03-01 15:32:46.925 DEBUG 12943 --- [ main] utoConfigurationReportLoggingInitializer :
=========================
AUTO-CONFIGURATION REPORT
=========================
Positive matches:
-----------------
Negative matches:
-----------------
CouchbaseAutoConfiguration:
Did not match:
- @ConditionalOnClass did not find required classes 'com.couchbase.client.java.CouchbaseBucket', 'com.couchbase.client.java.Cluster' (OnClassCondition)
DataSourceAutoConfiguration:
Did not match:
- @ConditionalOnClass did not find required class 'org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType' (OnClassCondition)
DataSourceAutoConfiguration.PooledDataSourceConfiguration:
Did not match:
- AnyNestedCondition 0 matched 2 did not; NestedCondition on DataSourceAutoConfiguration.PooledDataSourceCondition.PooledDataSourceAvailable PooledDataSource did not find supported DataSource; NestedCondition on DataSourceAutoConfiguration.PooledDataSourceCondition.ExplicitType @ConditionalOnProperty (spring.datasource.type) did not find property 'type' (DataSourceAutoConfiguration.PooledDataSourceCondition)
- Ancestor org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration did not match (ConditionEvaluationReport.AncestorsMatchedCondition)
DataSourceAutoConfiguration.TomcatDataSourceJmxConfiguration:
Did not match:
- @ConditionalOnClass did not find required class 'org.apache.tomcat.jdbc.pool.DataSourceProxy' (OnClassCondition)
- Ancestor org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration did not match (ConditionEvaluationReport.AncestorsMatchedCondition)
DataSourcePoolMetadataProvidersConfiguration.CommonsDbcp2PoolDataSourceMetadataProviderConfiguration:
Did not match:
- @ConditionalOnClass did not find required class 'org.apache.commons.dbcp2.BasicDataSource' (OnClassCondition)
DataSourcePoolMetadataProvidersConfiguration.CommonsDbcpPoolDataSourceMetadataProviderConfiguration:
Did not match:
- @ConditionalOnClass did not find required class 'org.apache.commons.dbcp.BasicDataSource' (OnClassCondition)
DataSourcePoolMetadataProvidersConfiguration.HikariPoolDataSourceMetadataProviderConfiguration:
Did not match:
- @ConditionalOnClass did not find required class 'com.zaxxer.hikari.HikariDataSource' (OnClassCondition)
DataSourcePoolMetadataProvidersConfiguration.TomcatDataSourcePoolMetadataProviderConfiguration:
Did not match:
- @ConditionalOnClass did not find required class 'org.apache.tomcat.jdbc.pool.DataSource' (OnClassCondition)
DataSourceTransactionManagerAutoConfiguration:
Did not match:
- @ConditionalOnClass did not find required classes 'org.springframework.jdbc.core.JdbcTemplate', 'org.springframework.transaction.PlatformTransactionManager' (OnClassCondition)
JdbcTemplateAutoConfiguration:
Did not match:
- @ConditionalOnClass did not find required class 'org.springframework.jdbc.core.JdbcTemplate' (OnClassCondition)
JndiDataSourceAutoConfiguration:
Did not match:
- @ConditionalOnClass did not find required class 'org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType' (OnClassCondition)
ReactorAutoConfiguration:
Did not match:
- @ConditionalOnClass did not find required classes 'reactor.spring.context.config.EnableReactor', 'reactor.Environment' (OnClassCondition)
Exclusions:
-----------
None
Unconditional classes:
----------------------
None
2019-03-01 15:32:46.933 ERROR 12943 --- [ main] o.s.boot.SpringApplication : Application startup failed
org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: URL [jar:file:/Users/zhouchaoqun/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/1.5.10.RELEASE/spring-boot-autoconfigure-1.5.10.RELEASE.jar!/org/springframework/boot/autoconfigure/jdbc/DataSourceAutoConfiguration$EmbeddedDatabaseConfiguration.class]; nested exception is java.lang.IllegalStateException: Could not evaluate condition on org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$EmbeddedDatabaseConfiguration due to org/springframework/jdbc/datasource/embedded/EmbeddedDatabaseType not found. Make sure your own configuration does not rely on that class. This can also happen if you are @ComponentScanning a springframework package (e.g. if you put a @ComponentScan in the default package by mistake)
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:311) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:272) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ComponentScanAnnotationParser.parse(ComponentScanAnnotationParser.java:135) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:287) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:198) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:167) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:308) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:228) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:272) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:92) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:687) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:525) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at com.shermanzhou.SpringBootMainApplication.main(SpringBootMainApplication.java:22) [classes/:na]
Caused by: java.lang.IllegalStateException: Could not evaluate condition on org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$EmbeddedDatabaseConfiguration due to org/springframework/jdbc/datasource/embedded/EmbeddedDatabaseType not found. Make sure your own configuration does not rely on that class. This can also happen if you are @ComponentScanning a springframework package (e.g. if you put a @ComponentScan in the default package by mistake)
at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:55) ~[spring-boot-autoconfigure-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:102) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:81) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:64) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.isConditionMatch(ClassPathScanningCandidateComponentProvider.java:371) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.isCandidateComponent(ClassPathScanningCandidateComponentProvider.java:355) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:288) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
... 19 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/springframework/jdbc/datasource/embedded/EmbeddedDatabaseType
at org.springframework.boot.autoconfigure.jdbc.EmbeddedDatabaseConnection.<clinit>(EmbeddedDatabaseConnection.java:49) ~[spring-boot-autoconfigure-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$EmbeddedDatabaseCondition.getMatchOutcome(DataSourceAutoConfiguration.java:211) ~[spring-boot-autoconfigure-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47) ~[spring-boot-autoconfigure-1.5.10.RELEASE.jar:1.5.10.RELEASE]
... 25 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_131]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_131]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) ~[na:1.8.0_131]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_131]
... 28 common frames omitted
Process finished with exit code 1
Comment From: ZhouChaoqun
@wilkinsona Oh, sorry, I found it at the end of a warning message.
"This can also happen if you are @ComponentScanning a springframework package (e.g. if you put a @ComponentScan in the default package by mistake)"
2019-03-01 15:32:46.919 WARN 12943 --- [ main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: URL [jar:file:/Users/zhouchaoqun/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/1.5.10.RELEASE/spring-boot-autoconfigure-1.5.10.RELEASE.jar!/org/springframework/boot/autoconfigure/jdbc/DataSourceAutoConfiguration$EmbeddedDatabaseConfiguration.class]; nested exception is java.lang.IllegalStateException: Could not evaluate condition on org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration$EmbeddedDatabaseConfiguration due to org/springframework/jdbc/datasource/embedded/EmbeddedDatabaseType not found. Make sure your own configuration does not rely on that class.
This can also happen if you are @ComponentScanning a springframework package (e.g. if you put a @ComponentScan in the default package by mistake)
you mean I can't use the @ComponentScan annotation in the Spring Boot startup class？
Comment From: wilkinsona
you mean I can't use the
@ComponentScanannotation in the Spring Boot startup class?
No, that’s fine. @SpringBootApplication is annotated with @ComponentScan so you just need to ensure that your startup class is in a named package (rather than the default package). If you customise the scanned packages, either using @ComponentScan or the attributes on @SpringApplication, you should ensure that you do not scan anything other than your application’s own classes.
If you have any further questions, please take a look at the various mentions of @ComponentScan in the reference documentation. If anything remains unclear, please follow up on Gitter or Stack Overflow. As mentioned in the guidelines for contributing, we prefer to use GitHub issues only for bugs and enhancements.
Comment From: DrFertility
Thank you for the above wilkinsona! - you're right!