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Cycles in Java classes cause infinite loop in ModelAttributeParameterExpander AGAIN #1622

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kimyoon21 opened this issue Jan 1, 2017 · 7 comments
Closed

Cycles in Java classes cause infinite loop in ModelAttributeParameterExpander AGAIN #1622

kimyoon21 opened this issue Jan 1, 2017 · 7 comments
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duplicate question
Milestone
2.7.0

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@kimyoon21
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kimyoon21 commented Jan 1, 2017 •
edited by dilipkrish

Hi I saw the bug : Cycles in Java classes cause infinite loop in ModelAttributeParameterExpander #621

Since 2.5.0 that bug should be fixed ,, but mine has same errors with 2.6.1 version.

this is console logs.

Logs and Stacktrace 

2017-01-01 19:42:49.973  INFO --- [on(2)-127.0.0.1] d.s.w.p.DocumentationPluginsBootstrapper [120] : Context refreshed
2017-01-01 19:42:50.033  INFO --- [on(2)-127.0.0.1] d.s.w.p.DocumentationPluginsBootstrapper [123] : Found 1 custom documentation plugin(s)
2017-01-01 19:42:50.085  INFO --- [on(2)-127.0.0.1] s.d.s.w.s.ApiListingReferenceScanner     [ 41] : Scanning for api listing references
2017-01-01 19:42:57.973  WARN --- [on(2)-127.0.0.1] o.s.w.c.s.XmlWebApplicationContext       [546] : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is com.google.common.util.concurrent.ExecutionError: java.lang.StackOverflowError
2017-01-01 19:42:57.999  INFO --- [on(2)-127.0.0.1] com.healing.beauty.service.PushService   [133] : destroy
2017-01-01 19:42:57.999  INFO --- [on(2)-127.0.0.1] com.healing.beauty.service.PushService   [135] : removeProvider : BC
2017-01-01 19:42:58.005  INFO --- [on(2)-127.0.0.1] o.s.c.ehcache.EhCacheManagerFactoryBean  [181] : Shutting down EhCache CacheManager
2017-01-01 19:42:58.013  INFO --- [on(2)-127.0.0.1] o.s.s.c.ThreadPoolTaskScheduler          [203] : Shutting down ExecutorService 'taskScheduler'
2017-01-01 19:42:58.014  INFO --- [on(2)-127.0.0.1] o.s.s.concurrent.ThreadPoolTaskExecutor  [203] : Shutting down ExecutorService 'taskExecutor'
2017-01-01 19:42:58.024 ERROR --- [on(2)-127.0.0.1] o.s.web.servlet.DispatcherServlet        [502] : Context initialization failed
org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is com.google.common.util.concurrent.ExecutionError: java.lang.StackOverflowError
	at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:176) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
	at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:51) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
	at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:346) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
	at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:149) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
	at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:112) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:852) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:668) ~[spring-webmvc-4.2.4.RELEASE.jar:4.2.4.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:634) ~[spring-webmvc-4.2.4.RELEASE.jar:4.2.4.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:682) ~[spring-webmvc-4.2.4.RELEASE.jar:4.2.4.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:553) ~[spring-webmvc-4.2.4.RELEASE.jar:4.2.4.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:494) ~[spring-webmvc-4.2.4.RELEASE.jar:4.2.4.RELEASE]
	at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136) [spring-webmvc-4.2.4.RELEASE.jar:4.2.4.RELEASE]
	at javax.servlet.GenericServlet.init(GenericServlet.java:158) [servlet-api.jar:3.1.FR]
	at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1231) [catalina.jar:8.0.30]
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1144) [catalina.jar:8.0.30]
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1031) [catalina.jar:8.0.30]
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4997) [catalina.jar:8.0.30]
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5289) [catalina.jar:8.0.30]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [catalina.jar:8.0.30]
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725) [catalina.jar:8.0.30]
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701) [catalina.jar:8.0.30]
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717) [catalina.jar:8.0.30]
	at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1675) [catalina.jar:8.0.30]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_65]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_65]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_65]
	at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_65]
	at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300) [tomcat-coyote.jar:8.0.30]
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_65]
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_65]
	at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:465) [catalina.jar:8.0.30]
	at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:415) [catalina.jar:8.0.30]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_65]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_65]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_65]
	at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_65]
	at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300) [tomcat-coyote.jar:8.0.30]
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_65]
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_65]
	at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1471) [na:1.8.0_65]
	at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) [na:1.8.0_65]
	at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1312) [na:1.8.0_65]
	at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1404) [na:1.8.0_65]
	at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:832) [na:1.8.0_65]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_65]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_65]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_65]
	at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_65]
	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:323) [na:1.8.0_65]
	at sun.rmi.transport.Transport$1.run(Transport.java:200) [na:1.8.0_65]
	at sun.rmi.transport.Transport$1.run(Transport.java:197) [na:1.8.0_65]
	at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_65]
	at sun.rmi.transport.Transport.serviceCall(Transport.java:196) [na:1.8.0_65]
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568) [na:1.8.0_65]
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826) [na:1.8.0_65]
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$256(TCPTransport.java:683) [na:1.8.0_65]
	at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_65]
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682) [na:1.8.0_65]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_65]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[na:1.8.0_65]
	at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_65]
Caused by: com.google.common.util.concurrent.ExecutionError: java.lang.StackOverflowError
	at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2205) ~[guava-19.0.jar:na]
	at com.google.common.cache.LocalCache.get(LocalCache.java:3953) ~[guava-19.0.jar:na]
	at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3957) ~[guava-19.0.jar:na]
	at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4875) ~[guava-19.0.jar:na]
	at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4881) ~[guava-19.0.jar:na]
	at springfox.documentation.spring.web.scanners.CachingOperationReader.read(CachingOperationReader.java:57) ~[springfox-spring-web-2.6.1.jar:2.6.1]
	at springfox.documentation.spring.web.scanners.ApiDescriptionReader.read(ApiDescriptionReader.java:66) ~[springfox-spring-web-2.6.1.jar:2.6.1]
	at springfox.documentation.spring.web.scanners.ApiListingScanner.scan(ApiListingScanner.java:89) ~[springfox-spring-web-2.6.1.jar:2.6.1]
	at springfox.documentation.spring.web.scanners.ApiDocumentationScanner.scan(ApiDocumentationScanner.java:70) ~[springfox-spring-web-2.6.1.jar:2.6.1]
	at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.scanDocumentation(DocumentationPluginsBootstrapper.java:85) ~[springfox-spring-web-2.6.1.jar:2.6.1]
	at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.start(DocumentationPluginsBootstrapper.java:127) ~[springfox-spring-web-2.6.1.jar:2.6.1]
	at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:173) ~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
	... 61 common frames omitted
Caused by: java.lang.StackOverflowError: null
	at java.util.regex.Pattern$BmpCharProperty.match(Pattern.java:3797) ~[na:1.8.0_65]
	at java.util.regex.Pattern$GroupHead.match(Pattern.java:4658) ~[na:1.8.0_65]
	at java.util.regex.Pattern$Branch.match(Pattern.java:4604) ~[na:1.8.0_65]
	at java.util.regex.Pattern$Branch.match(Pattern.java:4602) ~[na:1.8.0_65]
	at java.util.regex.Pattern$Branch.match(Pattern.java:4602) ~[na:1.8.0_65]
	at java.util.regex.Pattern$BranchConn.match(Pattern.java:4568) ~[na:1.8.0_65]
	at java.util.regex.Pattern$GroupTail.match(Pattern.java:4717) ~[na:1.8.0_65]
	at java.util.regex.Pattern$Curly.match0(Pattern.java:4279) ~[na:1.8.0_65]
	at java.util.regex.Pattern$Curly.match(Pattern.java:4234) ~[na:1.8.0_65]
	at java.util.regex.Pattern$GroupHead.match(Pattern.java:4658) ~[na:1.8.0_65]
	at java.util.regex.Pattern$Branch.match(Pattern.java:4604) ~[na:1.8.0_65]
	at java.util.regex.Pattern$Branch.match(Pattern.java:4602) ~[na:1.8.0_65]
	at java.util.regex.Pattern$BmpCharProperty.match(Pattern.java:3798) ~[na:1.8.0_65]
	at java.util.regex.Pattern$Start.match(Pattern.java:3461) ~[na:1.8.0_65]
	at java.util.regex.Matcher.search(Matcher.java:1248) ~[na:1.8.0_65]
	at java.util.regex.Matcher.find(Matcher.java:664) ~[na:1.8.0_65]
	at java.util.Formatter.parse(Formatter.java:2549) ~[na:1.8.0_65]
	at java.util.Formatter.format(Formatter.java:2501) ~[na:1.8.0_65]
	at java.util.Formatter.format(Formatter.java:2455) ~[na:1.8.0_65]
	at java.lang.String.format(String.java:2940) ~[na:1.8.0_65]
	at springfox.documentation.spring.web.readers.parameter.ExpandedParameterBuilder.apply(ExpandedParameterBuilder.java:64) ~[springfox-spring-web-2.6.1.jar:2.6.1]
	at springfox.documentation.spring.web.plugins.DocumentationPluginsManager.expandParameter(DocumentationPluginsManager.java:116) ~[springfox-spring-web-2.6.1.jar:2.6.1]
	at springfox.documentation.spring.web.readers.parameter.ModelAttributeParameterExpander.simpleFields(ModelAttributeParameterExpander.java:156) ~[springfox-spring-web-2.6.1.jar:2.6.1]
	at springfox.documentation.spring.web.readers.parameter.ModelAttributeParameterExpander.expand(ModelAttributeParameterExpander.java:119) ~[springfox-spring-web-2.6.1.jar:2.6.1]
	at springfox.documentation.spring.web.readers.parameter.ModelAttributeParameterExpander.expand(ModelAttributeParameterExpander.java:94) ~[springfox-spring-web-2.6.1.jar:2.6.1]
	at springfox.documentation.spring.web.readers.parameter.ModelAttributeParameterExpander.expand(ModelAttributeParameterExpander.java:94) ~[springfox-spring-web-2.6.1.jar:2.6.1]
	at springfox.documentation.spring.web.readers.parameter.ModelAttributeParameterExpander.expand(ModelAttributeParameterExpander.java:110) ~[springfox-spring-web-2.6.1.jar:2.6.1]
	at springfox.documentation.spring.web.readers.parameter.ModelAttributeParameterExpander.expand(ModelAttributeParameterExpander.java:110) ~[springfox-spring-web-2.6.1.jar:2.6.1]

and then last logs are repeated like 500times and it failed.

I assume it is same bugs that #621 issues.. but I don't know why it happens again. please help me out of this.

I am using spring-4.2.4 and in servlet-context.xml I put

	<!-- swagger  -->
	<beans:bean id="swagger2Config"
				class="springfox.documentation.swagger2.configuration.Swagger2DocumentationConfiguration"></beans:bean>

	<mvc:default-servlet-handler />
	<mvc:resources location="classpath:/META-INF/resources/" mapping="swagger-ui.html"></mvc:resources>
	<mvc:resources location="classpath:/META-INF/resources/webjars/"
			   mapping="/webjars/**"></mvc:resources>
@dilipkrish
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If you know which classes are giving you a recursive definition, you can remove a setter or two and fix the problem. The outstanding bug right now is that if you have the following definition (in pseudo code) it will cause a recursive loop.

class A {
   List<B> bees  {get;set;}
}

class B {
    List<A> as {get;set}
    //Or
   A {get;set}
}

@dilipkrish dilipkrish added this to the 2.7.0 milestone Jan 2, 2017
@kimyoon21
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kimyoon21 commented Jan 3, 2017 •
edited

Hello @dilipkrish Thanks for the answer.. but I think that kind of recursive thing are very common during the web server programming.. So I have thought SpringFox team is under fix this bug..is it wrong?
Because.. A has B , B has A case is too many in my codes to replace all of it.
Do I have to replace all code like above?

@dilipkrish
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In the near term, until we release 2.7, unfortunately the answer is yes.

@manosbatsis
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@kimyoon21 A workaround in my case was downgrading from springfox 2.6.1 to 2.5.0

@maisacaceres
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maisacaceres commented Aug 14, 2017 •
edited by dilipkrish

Hi,
I'm was reading some topics about this cycles in java classes and on release 2.7.0 this was supposed to be fixed, right?
But I'm using springfox 2.7.0 and still get this error and I don't know what I'm doing wrong:

Stack Trace 
org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is com.google.common.util.concurrent.ExecutionError: java.lang.StackOverflowError
	at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:178) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:50) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:348) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:151) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:114) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:879) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:144) ~[spring-boot-1.4.5.RELEASE.jar:1.4.5.RELEASE]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:545) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.4.5.RELEASE.jar:1.4.5.RELEASE]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:762) [spring-boot-1.4.5.RELEASE.jar:1.4.5.RELEASE]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:372) [spring-boot-1.4.5.RELEASE.jar:1.4.5.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) [spring-boot-1.4.5.RELEASE.jar:1.4.5.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1187) [spring-boot-1.4.5.RELEASE.jar:1.4.5.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1176) [spring-boot-1.4.5.RELEASE.jar:1.4.5.RELEASE]
	at br.com.digitalpages.swagger.App.main(App.java:18) [classes/:na]
Caused by: com.google.common.util.concurrent.ExecutionError: java.lang.StackOverflowError
	at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2201) ~[guava-18.0.jar:na]
	at com.google.common.cache.LocalCache.get(LocalCache.java:3937) ~[guava-18.0.jar:na]
	at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941) ~[guava-18.0.jar:na]
	at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824) ~[guava-18.0.jar:na]
	at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4830) ~[guava-18.0.jar:na]
	at springfox.documentation.spring.web.scanners.CachingOperationReader.read(CachingOperationReader.java:57) ~[springfox-spring-web-2.7.0.jar:2.7.0]
	at springfox.documentation.spring.web.scanners.ApiDescriptionReader.read(ApiDescriptionReader.java:66) ~[springfox-spring-web-2.7.0.jar:2.7.0]
	at springfox.documentation.spring.web.scanners.ApiListingScanner.scan(ApiListingScanner.java:89) ~[springfox-spring-web-2.7.0.jar:2.7.0]
	at springfox.documentation.spring.web.scanners.ApiDocumentationScanner.scan(ApiDocumentationScanner.java:71) ~[springfox-spring-web-2.7.0.jar:2.7.0]
	at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.scanDocumentation(DocumentationPluginsBootstrapper.java:95) ~[springfox-spring-web-2.7.0.jar:2.7.0]
	at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.start(DocumentationPluginsBootstrapper.java:154) ~[springfox-spring-web-2.7.0.jar:2.7.0]
	at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:175) ~[spring-context-4.3.7.RELEASE.jar:4.3.7.RELEASE]
	... 14 common frames omitted
Caused by: java.lang.StackOverflowError: null
	at com.fasterxml.classmate.util.ResolvedTypeCache$Key.equals(ResolvedTypeCache.java:153) ~[classmate-1.3.3.jar:1.3.3]
	at java.util.HashMap$TreeNode.find(HashMap.java:1859) ~[na:1.8.0_111]
	at java.util.HashMap$TreeNode.find(HashMap.java:1869) ~[na:1.8.0_111]
	at java.util.HashMap$TreeNode.getTreeNode(HashMap.java:1881) ~[na:1.8.0_111]
	at java.util.HashMap.getNode(HashMap.java:575) ~[na:1.8.0_111]
	at java.util.LinkedHashMap.get(LinkedHashMap.java:440) ~[na:1.8.0_111]
	at com.fasterxml.classmate.util.ResolvedTypeCache.find(ResolvedTypeCache.java:53) ~[classmate-1.3.3.jar:1.3.3]
	at com.fasterxml.classmate.TypeResolver._fromClass(TypeResolver.java:366) ~[classmate-1.3.3.jar:1.3.3]
	at com.fasterxml.classmate.TypeResolver._fromParamType(TypeResolver.java:470) ~[classmate-1.3.3.jar:1.3.3]
	at com.fasterxml.classmate.TypeResolver._fromAny(TypeResolver.java:315) ~[classmate-1.3.3.jar:1.3.3]
	at com.fasterxml.classmate.TypeResolver.resolve(TypeResolver.java:174) ~[classmate-1.3.3.jar:1.3.3]
	at com.fasterxml.classmate.ResolvedTypeWithMembers.resolveField(ResolvedTypeWithMembers.java:551) ~[classmate-1.3.3.jar:1.3.3]
	at com.fasterxml.classmate.ResolvedTypeWithMembers.resolveMemberFields(ResolvedTypeWithMembers.java:300) ~[classmate-1.3.3.jar:1.3.3]
	at com.fasterxml.classmate.ResolvedTypeWithMembers.getMemberFields(ResolvedTypeWithMembers.java:193) ~[classmate-1.3.3.jar:1.3.3]
	at springfox.documentation.schema.property.field.FieldProvider.in(FieldProvider.java:47) ~[springfox-schema-2.7.0.jar:2.7.0]
	at springfox.documentation.spring.web.readers.parameter.ModelAttributeParameterExpander.expand(ModelAttributeParameterExpander.java:77) ~[springfox-spring-web-2.7.0.jar:2.7.0]
	at springfox.documentation.spring.web.readers.parameter.ModelAttributeParameterExpander.expand(ModelAttributeParameterExpander.java:107) ~[springfox-spring-web-2.7.0.jar:2.7.0]
	at springfox.documentation.spring.web.readers.parameter.ModelAttributeParameterExpander.expand(ModelAttributeParameterExpander.java:107) ~[springfox-spring-web-2.7.0.jar:2.7.0]
	at springfox.documentation.spring.web.readers.parameter.ModelAttributeParameterExpander.expand(ModelAttributeParameterExpander.java:107) ~[springfox-spring-web-2.7.0.jar:2.7.0]
	at springfox.documentation.spring.web.readers.parameter.ModelAttributeParameterExpander.expand(ModelAttributeParameterExpander.java:107) ~[springfox-spring-web-2.7.0.jar:2.7.0]
	at springfox.documentation.spring.web.readers.parameter.ModelAttributeParameterExpander.expand(ModelAttributeParameterExpander.java:107) ~[springfox-spring-web-2.7.0.jar:2.7.0]
	at springfox.documentation.spring.web.readers.parameter.ModelAttributeParameterExpander.expand(ModelAttributeParameterExpander.java:107) ~[springfox-spring-web-2.7.0.jar:2.7.0]
	at springfox.documentation.spring.web.readers.parameter.ModelAttributeParameterExpander.expand(ModelAttributeParameterExpander.java:107) ~[springfox-spring-web-2.7.0.jar:2.7.0]
	at springfox.documentation.spring.web.readers.parameter.ModelAttributeParameterExpander.expand(ModelAttributeParameterExpander.java:107) ~[springfox-spring-web-2.7.0.jar:2.7.0]_

@dilipkrish
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@maisacaceres nothing that you're doing wrong it is a bug that is expected to be fixed.

@kopax
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kopax commented Nov 6, 2017 •
edited

I have the same error, is it related ? #2100

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