Java 启动spring引导应用程序时出现StackOverflower错误

在我的SpringBootMaven项目中，其中一个依赖项是提供

SpringDataCommons

。这会扫描我项目中的类并抛出StackOverflow错误。它不喜欢的课程如下：

class TreeNode<T> {
    private T someData = null;
    private List<TreeNode<T>> children = new ArrayList<>();
}

类树节点{
私有T someData=null；
private List children=new ArrayList（）；
}

我想它正在尝试一些字段上的反射机制，但由于一些不确定的循环而失败。 春季启动应用程序启动期间的日志

Caused by: java.lang.StackOverflowError
    at java.util.AbstractMap.hashCode(AbstractMap.java:528) ~[?:1.8.0_121]
    at org.springframework.util.ObjectUtils.nullSafeHashCode(ObjectUtils.java:396) ~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.core.ResolvableType.calculateHashCode(ResolvableType.java:865) ~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.core.ResolvableType.<init>(ResolvableType.java:140) ~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.core.ResolvableType.forType(ResolvableType.java:1349) ~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.core.ResolvableType.forType(ResolvableType.java:1320) ~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.core.GenericTypeResolver.resolveType(GenericTypeResolver.java:260) ~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.data.util.TypeDiscoverer.resolveType(TypeDiscoverer.java:186) ~[spring-data-commons-1.13.3.RELEASE.jar:?]
    at org.springframework.data.util.TypeDiscoverer.createInfo(TypeDiscoverer.java:128) ~[spring-data-commons-1.13.3.RELEASE.jar:?]
    at org.springframework.data.util.ParentTypeAwareTypeInformation.createInfo(ParentTypeAwareTypeInformation.java:73) ~[spring-data-commons-1.13.3.RELEASE.jar:?]
    at org.springframework.data.util.TypeDiscoverer.getPropertyInformation(TypeDiscoverer.java:246) ~[spring-data-commons-1.13.3.RELEASE.jar:?]
    at org.springframework.data.util.TypeDiscoverer.getProperty(TypeDiscoverer.java:221) ~[spring-data-commons-1.13.3.RELEASE.jar:?]
    at org.springframework.data.util.ParentTypeAwareTypeInformation.getProperty(ParentTypeAwareTypeInformation.java:28) ~[spring-data-commons-1.13.3.RELEASE.jar:?]
    at org.springframework.data.mapping.model.AbstractPersistentProperty.<init>(AbstractPersistentProperty.java:66) ~[spring-data-commons-1.13.3.RELEASE.jar:?]
    at org.springframework.data.mapping.model.AnnotationBasedPersistentProperty.<init>(AnnotationBasedPersistentProperty.java:68) ~[spring-data-commons-1.13.3.RELEASE.jar:?]
    at org.springframework.data.neo4j.mapping.Neo4jPersistentProperty.<init>(Neo4jPersistentProperty.java:74) ~[spring-data-neo4j-4.2.3.RELEASE.jar:?]
    at org.springframework.data.neo4j.mapping.Neo4jMappingContext.createPersistentProperty(Neo4jMappingContext.java:95) ~[spring-data-neo4j-4.2.3.RELEASE.jar:?]
    at org.springframework.data.neo4j.mapping.Neo4jMappingContext.createPersistentProperty(Neo4jMappingContext.java:42) ~[spring-data-neo4j-4.2.3.RELEASE.jar:?]
    at org.springframework.data.mapping.context.AbstractMappingContext$PersistentPropertyCreator.createAndRegisterProperty(AbstractMappingContext.java:487) ~[spring-data-commons-1.13.3.RELEASE.jar:?]
    at org.springframework.data.mapping.context.AbstractMappingContext$PersistentPropertyCreator.doWith(AbstractMappingContext.java:465) ~[spring-data-commons-1.13.3.RELEASE.jar:?]
    at org.springframework.util.ReflectionUtils.doWithFields(ReflectionUtils.java:693) ~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.data.mapping.context.AbstractMappingContext.addPersistentEntity(AbstractMappingContext.java:329) ~[spring-data-commons-1.13.3.RELEASE.jar:?]
    at org.springframework.data.mapping.context.AbstractMappingContext$PersistentPropertyCreator.createAndRegisterProperty(AbstractMappingContext.java:508) ~[spring-data-commons-1.13.3.RELEASE.jar:?]
    at org.springframework.data.mapping.context.AbstractMappingContext$PersistentPropertyCreator.doWith(AbstractMappingContext.java:465) ~[spring-data-commons-1.13.3.RELEASE.jar:?]
    at org.springframework.util.ReflectionUtils.doWithFields(ReflectionUtils.java:693) ~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
    at org.springframework.data.mapping.context.AbstractMappingContext.addPersistentEntity(AbstractMappingContext.java:329) ~[spring-data-commons-1.13.3.RELEASE.jar:?]
    at org.springframework.data.mapping.context.AbstractMappingContext$PersistentPropertyCreator.createAndRegisterProperty(AbstractMappingContext.java:508) ~[spring-data-commons-1.13.3.RELEASE.jar:?]
    at org.springframework.data.mapping.context.AbstractMappingContext$PersistentPropertyCreator.doWith(AbstractMappingContext.java:465) ~[spring-data-common]s-1.13.3.RELEASE.jar:?

原因：java.lang.StackOverflower错误
hashCode（AbstractMap.java:528）~[？：1.8.0_121]
在org.springframework.util.ObjectUtils.nullSafeHashCode（ObjectUtils.java:396）~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
在org.springframework.core.ResolvableType.calculateHashCode（ResolvableType.java:865）~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
在org.springframework.core.ResolvableType.（ResolvableType.java:140）~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
在org.springframework.core.ResolvableType.forType（ResolvableType.java:1349）~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
在org.springframework.core.ResolvableType.forType（ResolvableType.java:1320）~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
在org.springframework.core.GenericTypeResolver.resolveType（GenericTypeResolver.java:260）~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
在org.springframework.data.util.TypeDiscoverer.resolveType（TypeDiscoverer.java:186）~[spring-data-commons-1.13.3.RELEASE.jar:？]
在org.springframework.data.util.TypeDiscoverer.createInfo（TypeDiscoverer.java:128）~[spring-data-commons-1.13.3.RELEASE.jar:？]
在org.springframework.data.util.ParentTypeAwareTypeInformation.createInfo（ParentTypeAwareTypeInformation.java:73）~[spring-data-commons-1.13.3.RELEASE.jar:？]
在org.springframework.data.util.TypeDiscoverer.getPropertyInformation（TypeDiscoverer.java:246）~[spring-data-commons-1.13.3.RELEASE.jar:？]
在org.springframework.data.util.TypeDiscoverer.getProperty（TypeDiscoverer.java:221）~[spring-data-commons-1.13.3.RELEASE.jar:？]
在org.springframework.data.util.ParentTypeAwareTypeInformation.getProperty（ParentTypeAwareTypeInformation.java:28）~[spring-data-commons-1.13.3.RELEASE.jar:？]
位于org.springframework.data.mapping.model.AbstractPersistentProperty.（AbstractPersistentProperty.java:66）~[spring-data-commons-1.13.3.RELEASE.jar:？]
位于org.springframework.data.mapping.model.AnnotationBasedPersistentProperty.（AnnotationBasedPersistentProperty.java:68）~[spring-data-commons-1.13.3.RELEASE.jar:？]
在org.springframework.data.neo4j.mapping.Neo4jPersistentProperty.（Neo4jPersistentProperty.java:74）~[spring-data-neo4j-4.2.3.RELEASE.jar:？]
在org.springframework.data.neo4j.mapping.Neo4jMappingContext.createPersistentProperty（Neo4jMappingContext.java:95）~[spring-data-neo4j-4.2.3.RELEASE.jar:？]
在org.springframework.data.neo4j.mapping.Neo4jMappingContext.createPersistentProperty（Neo4jMappingContext.java:42）~[spring-data-neo4j-4.2.3.RELEASE.jar:？]
在org.springframework.data.mapping.context.AbstractMappingContext$PersistentPropertyCreator.CreateAndRegistrProperty（AbstractMappingContext.java:487）~[spring-data-commons-1.13.3.RELEASE.jar:？]
在org.springframework.data.mapping.context.AbstractMappingContext$PersistentPropertyCreator.doWith（AbstractMappingContext.java:465）~[spring-data-commons-1.13.3.RELEASE.jar:？]
在org.springframework.util.ReflectionUtils.doWithFields（ReflectionUtils.java:693）~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
在org.springframework.data.mapping.context.AbstractMappingContext.addPersistentEntity（AbstractMappingContext.java:329）~[spring-data-commons-1.13.3.RELEASE.jar:？]
在org.springframework.data.mapping.context.AbstractMappingContext$PersistentPropertyCreator.CreateAndRegistrProperty（AbstractMappingContext.java:508）~[spring-data-commons-1.13.3.RELEASE.jar:？]
在org.springframework.data.mapping.context.AbstractMappingContext$PersistentPropertyCreator.doWith（AbstractMappingContext.java:465）~[spring-data-commons-1.13.3.RELEASE.jar:？]
在org.springframework.util.ReflectionUtils.doWithFields（ReflectionUtils.java:693）~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE]
在org.springframework.data.mapping.context.AbstractMappingContext.addPersistentEntity（AbstractMappingContext.java:329）~[spring-data-commons-1.13.3.RELEASE.jar:？]
在org.springframework.data.mapping.context.AbstractMappingContext$PersistentPropertyCreator.CreateAndRegistrProperty（AbstractMappingContext.java:508）~[spring-data-commons-1.13.3.RELEASE.jar:？]
在org.springframework.data.mapping.context.AbstractMappingContext$PersistentPropertyCreator.doWith（AbstractMappingContext.java:465）~[spring数据公用]s-1.13.3.RELEASE.jar:？

我不想让它扫描这个类（或者任何类似的类）。我只是删除了

spring数据共用项

，但没有成功。在我的应用程序的其他部分中，它用于注入一些会话对象

有什么解决这个问题的建议吗

我不是spring数据方面的专家。但是已经使用spring很长一段时间了

---

干杯

这个错误非常适合这个网站，哈哈哈哈！！！这个

TreeNode

类属于您的项目，对吗？它是否在从Spring扫描的包中？如果您将它移动到另一个未从

Spring

获取的包中，这难道不能解决问题吗？@jmhostalet haha。真的@是的，这门课属于我的项目。我也试过了，从名为“dao”的包移动到“foo”只是为了验证。我想现在它正在到处扫描。我不知道如何配置它（SpringDataCommons）以排除特定目录。@brownfox

SpringBoot

默认情况下从

@SpringBootApplication

类所在的包及其所有子包中扫描。放置

树节点<