"Failed to parse multipart servlet request" when file uploading interrupted

Question

I'm using Spring Boot (1.5.7) and ng2-file-upload (1.2.1) for uploading files to the server.

So I have the next trouble, when file uploading starts and interrupts (on closing browser tab for example) Spring Boot logs next error (two times):

2018-10-10 14:45:57.054 ERROR 11540 --- [http-nio-8282-exec-6] o.a.c.c.C.[.[.[.[dispatcherServlet]      : line[182] - Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.web.multipart.MultipartException: Could not parse multipart servlet request; nested exception is java.io.IOException: org.apache.tomcat.util.http.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. Unexpected EOF read on the socket] with root cause
java.io.EOFException: Unexpected EOF read on the socket
    at org.apache.coyote.http11.InternalNioInputBuffer.fill(InternalNioInputBuffer.java:152) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.coyote.http11.InternalNioInputBuffer$SocketInputBuffer.doRead(InternalNioInputBuffer.java:177) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.coyote.http11.filters.IdentityInputFilter.doRead(IdentityInputFilter.java:110) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.coyote.http11.AbstractInputBuffer.doRead(AbstractInputBuffer.java:362) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.coyote.Request.doRead(Request.java:476) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.InputBuffer.realReadBytes(InputBuffer.java:344) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.tomcat.util.buf.ByteChunk.substract(ByteChunk.java:395) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.InputBuffer.read(InputBuffer.java:369) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:190) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at java.io.FilterInputStream.read(FilterInputStream.java:133) ~[?:1.8.0_161]
    at org.apache.tomcat.util.http.fileupload.util.LimitedInputStream.read(LimitedInputStream.java:132) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.tomcat.util.http.fileupload.MultipartStream$ItemInputStream.makeAvailable(MultipartStream.java:977) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.tomcat.util.http.fileupload.MultipartStream$ItemInputStream.read(MultipartStream.java:881) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at java.io.FilterInputStream.read(FilterInputStream.java:133) ~[?:1.8.0_161]
    at org.apache.tomcat.util.http.fileupload.util.LimitedInputStream.read(LimitedInputStream.java:132) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at java.io.FilterInputStream.read(FilterInputStream.java:107) ~[?:1.8.0_161]
    at org.apache.tomcat.util.http.fileupload.util.Streams.copy(Streams.java:98) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.tomcat.util.http.fileupload.util.Streams.copy(Streams.java:68) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.tomcat.util.http.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:293) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.Request.parseParts(Request.java:2803) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.Request.parseParameters(Request.java:3178) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.Request.getParameter(Request.java:1109) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.RequestFacade.getParameter(RequestFacade.java:380) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:75) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:106) ~[spring-boot-actuator-1.5.7.RELEASE.jar:1.5.7.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:94) [tomcat-embed-core-8.0.46.jar:8.0.46]
...

When I added @ExceptionHandler to @ControllerAdvice:

@ExceptionHandler(MultipartException.class)
protected ResponseData handleFileUploadingError(Exception e) {
    log.warn("Failed to upload attachment", e);
    return ResponseData.with(e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
}

And next property to application.properties:

spring.mvc.throw-exception-if-no-handler-found=true

Now when file uploading interrupted @ExceptionHandler logs error as it should (next snippet) but time to time after that Spring Boot still logs error from dispatcherServlet (like in first snippet)

2018-10-10 14:52:32.655 WARN 14392 --- [http-nio-8282-exec-9] c.c.i.c.a.ExceptionHandlerAdvice         : line[76] - Failed to upload attachment
org.springframework.web.multipart.MultipartException: Could not parse multipart servlet request; nested exception is java.io.IOException: org.apache.tomcat.util.http.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. Unexpected EOF read on the socket
    at org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.parseRequest(StandardMultipartHttpServletRequest.java:112) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.<init>(StandardMultipartHttpServletRequest.java:86) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.springframework.web.multipart.support.StandardServletMultipartResolver.resolveMultipart(StandardServletMultipartResolver.java:79) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.checkMultipart(DispatcherServlet.java:1104) [spring-webmvc-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:936) [spring-webmvc-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) [spring-webmvc-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) [spring-webmvc-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) [spring-webmvc-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:648) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) [spring-webmvc-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat-embed-websocket-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55) [spring-boot-1.5.7.RELEASE.jar:1.5.7.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:110) [spring-boot-actuator-1.5.7.RELEASE.jar:1.5.7.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:96) [spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.oauth2.provider.authentication.OAuth2AuthenticationProcessingFilter.doFilter(OAuth2AuthenticationProcessingFilter.java:176) [spring-security-oauth2-2.1.1.RELEASE.jar:?]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177) [spring-security-web-4.2.3.RELEASE.jar:4.2.3.RELEASE]
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) [spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) [spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108) [spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) [spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) [spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:106) [spring-boot-actuator-1.5.7.RELEASE.jar:1.5.7.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:94) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:502) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1132) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1539) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1495) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_161]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_161]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.0.46.jar:8.0.46]
    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_161]
Caused by: java.io.IOException: org.apache.tomcat.util.http.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. Unexpected EOF read on the socket
    at org.apache.catalina.connector.Request.parseParts(Request.java:2876) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.Request.parseParameters(Request.java:3178) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.Request.getParameter(Request.java:1109) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.RequestFacade.getParameter(RequestFacade.java:380) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:75) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    ... 27 more
Caused by: org.apache.tomcat.util.http.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. Unexpected EOF read on the socket
    at org.apache.tomcat.util.http.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:297) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.Request.parseParts(Request.java:2803) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.Request.parseParameters(Request.java:3178) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.Request.getParameter(Request.java:1109) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.RequestFacade.getParameter(RequestFacade.java:380) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:75) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    ... 27 more
Caused by: java.io.EOFException: Unexpected EOF read on the socket
    at org.apache.coyote.http11.InternalNioInputBuffer.fill(InternalNioInputBuffer.java:152) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.coyote.http11.InternalNioInputBuffer$SocketInputBuffer.doRead(InternalNioInputBuffer.java:177) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.coyote.http11.filters.IdentityInputFilter.doRead(IdentityInputFilter.java:110) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.coyote.http11.AbstractInputBuffer.doRead(AbstractInputBuffer.java:362) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.coyote.Request.doRead(Request.java:476) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.InputBuffer.realReadBytes(InputBuffer.java:344) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.tomcat.util.buf.ByteChunk.substract(ByteChunk.java:395) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.InputBuffer.read(InputBuffer.java:369) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:190) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at java.io.FilterInputStream.read(FilterInputStream.java:133) ~[?:1.8.0_161]
    at org.apache.tomcat.util.http.fileupload.util.LimitedInputStream.read(LimitedInputStream.java:132) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.tomcat.util.http.fileupload.MultipartStream$ItemInputStream.makeAvailable(MultipartStream.java:977) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.tomcat.util.http.fileupload.MultipartStream$ItemInputStream.read(MultipartStream.java:881) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at java.io.FilterInputStream.read(FilterInputStream.java:133) ~[?:1.8.0_161]
    at org.apache.tomcat.util.http.fileupload.util.LimitedInputStream.read(LimitedInputStream.java:132) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at java.io.FilterInputStream.read(FilterInputStream.java:107) ~[?:1.8.0_161]
    at org.apache.tomcat.util.http.fileupload.util.Streams.copy(Streams.java:98) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.tomcat.util.http.fileupload.util.Streams.copy(Streams.java:68) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.tomcat.util.http.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:293) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.Request.parseParts(Request.java:2803) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.Request.parseParameters(Request.java:3178) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.Request.getParameter(Request.java:1109) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.apache.catalina.connector.RequestFacade.getParameter(RequestFacade.java:380) ~[tomcat-embed-core-8.0.46.jar:8.0.46]
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:75) ~[spring-web-4.3.11.RELEASE.jar:4.3.11.RELEASE]
    ... 27 more

Here is part of code from frontend app which responding for file uploading:

this.uploader.onAfterAddingFile = (fileItem) => {
            this.setAuthTokenHeader();
            this.uploader.uploadItem(fileItem);
            this.uploadedFiles.push({
                id: null,
                originalName: fileItem.file.name,
                attachmentName: null
            });
            this.changedCallback(this.uploadedFiles);
            this.scrollToFilesUX();
        };

I have no idea what can be wrong. Thanks in advance.

PS: Also I noticed, if @ExceptionHandler method type is void and it do nothing but logging error everything works as it should

UPDATE

I thought it's doesn't matter, because controller even not called, as I know it happens because file uploads to the server at first (and exception throws on this step) and then controller executes. But here is my controller method (class annotated as @RestController):

@PostMapping(value = "/attachments")
    public ResponseData put(@RequestParam(value = "storeFile", required = false) MultipartFile multipartFile,
                            @RequestParam(required = false) List<DocumentType> documentTypes) throws IOException {
        try {
            return ResponseData.with(attachmentService.uploadTempFile(multipartFile, documentTypes));
        } catch (AttachmentValidationException e) {
            return ResponseData.with(e.getTempFileName(), e.getMessages(), HttpStatus.NOT_ACCEPTABLE);
        }
    }

UPDATE 2

Here is chaned @ExceptionHandler method. In that case Spring Boot doesn't log any error (that's good). But now, exception logs as WARN two times. If early it was my WARN log + Spring Boot duplicate ERROR log, now it's my WARN log which duplicates (with different time)

@ExceptionHandler(value = MultipartException.class)
    public void handleFileUploadingError(HttpServletResponse response, Exception exception) {
        log.warn("Failed to upload attachment", exception);
        try {
            response.sendError(Response.SC_INTERNAL_SERVER_ERROR, exception.getMessage());
        } catch (IOException e) {
            log.error("Failed to send error response", e);
        }
    }

Answer 1

I think this behaviour is correct, since you're still logging the exception here (the e param):

log.warn("Failed to upload attachment", e);

Notice that your exception changed from ERROR to WARN , as you did log as a warn in yout exception handler.

Answer 2

I have debugged your controller advice and found method is called twice so its logging warning twice so seems sendError again send response back to handle exception..(not sure)..

Here are two solutions I can see and works for me as checked..

Approach 1 return ResponseEntity

@ExceptionHandler(MultipartException.class)
    public ResponseEntity handleFileUploadingError(MultipartException exception) {
        log.warn("Failed to upload attachment", exception);
        return new ResponseEntity<>(exception.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);

    }

Approach 2 which similar but return String

    @ExceptionHandler(value = MultipartException.class)
    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
    @ResponseBody
    public String handleFileUploadingError(MultipartException exception) {
        logger.warn("Failed to upload attachment", exception);
        return exception.getMessage();
    }

Answer 3

After many tries, after many tears. I randomly found how to fix this error. All troubles was in response from server side. If response do not contains body - everything works fine, else everything works as in header of this topic. There is my ExceptionHandler which resolve topic case:

@ExceptionHandler(value = MultipartException.class)
public ResponseData handleFileUploadingError(Exception exception) {
    log.warn("Failed to upload attachment", exception);
    return ResponseData.with(HttpStatus.BAD_REQUEST);
}

Answer 4

Disable csrf in your WebSecurityConfigurerAdapter I am not sure what is this but one of my expert friend said disable it for sending multipart resources.

public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
    http.csrf().disable();
}

Answer 5

Check if your form has method="post" enctype="multipart/form-data". Also, check you have provided these settings in the ajax parameters.

type:'post',
processData : false,
contentType : false,
mimeType: 'multipart/form-data',