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Spring context loading gets stuck after caching

See original GitHub issue

We’ve a spring boot app with ~1200 APIs in 160 Controllers, using Swagger2 for generating API docs, but we are facing a problem during context loading we see a lot of log lines

2016-12-29 12:23:25.309  INFO 6748 --- [           main] .d.s.w.r.o.CachingOperationNameGenerator : Generating unique operation named: testAPIXYZPOST_5
2016-12-29 12:23:25.327  INFO 6748 --- [           main] .d.s.w.r.o.CachingOperationNameGenerator : Generating unique operation named: testAPIXYZPOST_2
2016-12-29 12:23:25.336  INFO 6748 --- [           main] .d.s.w.r.o.CachingOperationNameGenerator : Generating unique operation named: testAPIXYZPOST_3
2016-12-29 12:23:29.460  INFO 6748 --- [           main] .d.s.w.r.o.CachingOperationNameGenerator : Generating unique operation named: testAPIXYZPOST_1
2016-12-29 12:23:29.468  INFO 6748 --- [           main] .d.s.w.r.o.CachingOperationNameGenerator : Generating unique operation named: testAPIXYZPOST_4
2016-12-29 12:23:29.475  INFO 6748 --- [           main] .d.s.w.r.o.CachingOperationNameGenerator : Generating unique operation named: testAPIXYZPOST_5
2016-12-29 12:23:29.505  INFO 6748 --- [           main] .d.s.w.r.o.CachingOperationNameGenerator : Generating unique operation named: testAPIXYZPOST_1

It stops here and the context loading doesn’t proceed, the configuration class is following

@EnableSwagger2
@Configuration
@Profile("internal")
public class SwaggerConfiguration {

    @Value("${info.app.name}")
    private String appName;

    @Value("${info.app.description}")
    private String appDescription;

    @Autowired
    private TypeResolver typeResolver;

    @Bean
    public Docket coreServiceApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .select()
                .apis(RequestHandlerSelectors.withClassAnnotation(Controller.class))
                .build();
    }

}

We tried with marking a few API @RestController and used .apis(RequestHandlerSelectors.withClassAnnotation(RestController.class)) it worked in the same project as there are only 4 Controller marked with @RestController. Any pointers on what can be going wrong?

I suspended the main thread when it was stuck and found the following

"main@1" prio=5 tid=0x1 nid=NA runnable
  java.lang.Thread.State: RUNNABLE
	  at java.util.AbstractList.<init>(AbstractList.java:77)
	  at java.util.ArrayList.<init>(ArrayList.java:176)
	  at com.google.common.collect.Lists.newArrayList(Lists.java:144)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:103)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromCollectionElementType(DefaultModelDependencyProvider.java:182)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:143)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromCollectionElementType(DefaultModelDependencyProvider.java:182)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:143)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromCollectionElementType(DefaultModelDependencyProvider.java:182)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:143)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromCollectionElementType(DefaultModelDependencyProvider.java:182)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:143)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromCollectionElementType(DefaultModelDependencyProvider.java:182)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:143)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromCollectionElementType(DefaultModelDependencyProvider.java:182)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:143)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromCollectionElementType(DefaultModelDependencyProvider.java:182)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:143)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromCollectionElementType(DefaultModelDependencyProvider.java:182)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:143)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromCollectionElementType(DefaultModelDependencyProvider.java:182)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:143)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromCollectionElementType(DefaultModelDependencyProvider.java:182)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:143)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.maybeFromRegularType(DefaultModelDependencyProvider.java:169)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedPropertiesAndFields(DefaultModelDependencyProvider.java:145)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:105)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedTypeParameters(DefaultModelDependencyProvider.java:127)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:103)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedTypeParameters(DefaultModelDependencyProvider.java:127)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.resolvedDependencies(DefaultModelDependencyProvider.java:103)
	  at springfox.documentation.schema.DefaultModelDependencyProvider.dependentModels(DefaultModelDependencyProvider.java:66)
	  at springfox.documentation.schema.CachingModelDependencyProvider$1.load(CachingModelDependencyProvider.java:50)
	  at springfox.documentation.schema.CachingModelDependencyProvider$1.load(CachingModelDependencyProvider.java:48)
	  at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3527)
	  at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2319)
	  at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2282)
	  - locked <0x4861> (a com.google.common.cache.LocalCache$StrongAccessWriteEntry)
	  at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2197)
	  at com.google.common.cache.LocalCache.get(LocalCache.java:3937)
	  at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941)
	  at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824)
	  at springfox.documentation.schema.CachingModelDependencyProvider.dependentModels(CachingModelDependencyProvider.java:58)
	  at springfox.documentation.schema.DefaultModelProvider.dependencies(DefaultModelProvider.java:113)
	  at springfox.documentation.schema.CachingModelProvider.dependencies(CachingModelProvider.java:68)
	  at springfox.documentation.spring.web.scanners.ApiModelReader.populateDependencies(ApiModelReader.java:133)
	  at springfox.documentation.spring.web.scanners.ApiModelReader.read(ApiModelReader.java:76)
	  at springfox.documentation.spring.web.scanners.ApiListingScanner.scan(ApiListingScanner.java:88)
	  at springfox.documentation.spring.web.scanners.ApiDocumentationScanner.scan(ApiDocumentationScanner.java:70)
	  at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.scanDocumentation(DocumentationPluginsBootstrapper.java:85)
	  at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.start(DocumentationPluginsBootstrapper.java:127)
	  at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:173)
	  at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:51)
	  at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:346)
	  at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:149)
	  at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:112)
	  at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:874)
	  at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:144)
	  at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:544)
	  - locked <0x4862> (a java.lang.Object)
	  at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
	  at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761)
	  at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371)
	  at org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
	  at org.springframework.boot.SpringApplication.run(SpringApplication.java:1186)
	  at org.springframework.boot.SpringApplication.run(SpringApplication.java:1175)

Issue Analytics

  • State:closed
  • Created 7 years ago
  • Comments:8 (5 by maintainers)

github_iconTop GitHub Comments

2reactions
cesarreyesacommented, Oct 13, 2018

Hi, I recently came across the same issue, but I was using Groovy.

It was caused by the MetaClass from Groovy.

This configuration did the trick docket.ignoredParameterTypes(groovy.lang.MetaClass.class)

Hope this helps someone else.

0reactions
dilipkrishcommented, Feb 24, 2017

Moving to complete, as I haven’t heard back. Feel free to re-open

Read more comments on GitHub >

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