The avatar could not be saved

#!java

2018-01-05 13:12:22,332 ERROR [http-nio-7990-exec-5] theBLBDan @BXHRXUx792x23049x0 1rdo1o2 192.168.20.254 "POST /users/ann/avatar.png HTTP/1.1" c.a.s.i.w.HandlerExceptionResolverImpl Handler dispatch failed; nested exception is java.lang.NoClassDefFoundError: Could not initialize class sun.java2d.Disposer
org.springframework.web.util.NestedServletException: Handler dispatch failed; nested exception is java.lang.NoClassDefFoundError: Could not initialize class sun.java2d.Disposer
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:982)
        at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:24)
        at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:24)
        at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:24)
        at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:24)
        at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:24)
        at com.atlassian.stash.internal.spring.lifecycle.LifecycleJohnsonServletFilterModuleContainerFilter.doFilter(LifecycleJohnsonServletFilterModuleContainerFilter.java:42)
        at com.atlassian.stash.internal.spring.lifecycle.LifecycleJohnsonServletFilterModuleContainerFilter.doFilter(LifecycleJohnsonServletFilterModuleContainerFilter.java:42)
        at com.atlassian.stash.internal.spring.security.StashAuthenticationFilter.doFilter(StashAuthenticationFilter.java:88)
        at com.atlassian.stash.internal.web.auth.BeforeLoginPluginAuthenticationFilter.doInsideSpringSecurityChain(BeforeLoginPluginAuthenticationFilter.java:112)
        at com.atlassian.stash.internal.web.auth.BeforeLoginPluginAuthenticationFilter.doFilter(BeforeLoginPluginAuthenticationFilter.java:75)
        at com.atlassian.security.auth.trustedapps.filter.TrustedApplicationsFilter.doFilter(TrustedApplicationsFilter.java:94)
        at com.atlassian.oauth.serviceprovider.internal.servlet.OAuthFilter.doFilter(OAuthFilter.java:67)
        at com.atlassian.stash.internal.spring.lifecycle.LifecycleJohnsonServletFilterModuleContainerFilter.doFilter(LifecycleJohnsonServletFilterModuleContainerFilter.java:42)
        at com.atlassian.stash.internal.spring.lifecycle.LifecycleJohnsonServletFilterModuleContainerFilter.doFilter(LifecycleJohnsonServletFilterModuleContainerFilter.java:42)
        at com.atlassian.security.auth.trustedapps.filter.TrustedApplicationsFilter.doFilter(TrustedApplicationsFilter.java:94)
        at com.atlassian.oauth.serviceprovider.internal.servlet.OAuthFilter.doFilter(OAuthFilter.java:67)
        at com.atlassian.stash.internal.spring.lifecycle.LifecycleJohnsonServletFilterModuleContainerFilter.doFilter(LifecycleJohnsonServletFilterModuleContainerFilter.java:42)
        at com.atlassian.plugin.connect.plugin.auth.user.ThreeLeggedAuthFilter.doFilter(ThreeLeggedAuthFilter.java:109)
        at com.atlassian.jwt.internal.servlet.JwtAuthFilter.doFilter(JwtAuthFilter.java:32)
        at com.atlassian.analytics.client.filter.DefaultAnalyticsFilter.doFilter(DefaultAnalyticsFilter.java:38)
        at com.atlassian.analytics.client.filter.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:39)
        at com.atlassian.stash.internal.spring.lifecycle.LifecycleJohnsonServletFilterModuleContainerFilter.doFilter(LifecycleJohnsonServletFilterModuleContainerFilter.java:42)
        at com.atlassian.stash.internal.web.auth.BeforeLoginPluginAuthenticationFilter.doBeforeBeforeLoginFilters(BeforeLoginPluginAuthenticationFilter.java:90)
        at com.atlassian.stash.internal.web.auth.BeforeLoginPluginAuthenticationFilter.doFilter(BeforeLoginPluginAuthenticationFilter.java:73)
        at com.atlassian.stash.internal.request.DefaultRequestManager.doAsRequest(DefaultRequestManager.java:89)
        at com.atlassian.stash.internal.hazelcast.ConfigurableWebFilter.doFilter(ConfigurableWebFilter.java:38)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.lang.Thread.run(Thread.java:748)
        ... 257 frames trimmed
Caused by: java.lang.NoClassDefFoundError: Could not initialize class sun.java2d.Disposer
        at javax.imageio.stream.FileCacheImageInputStream.<init>(FileCacheImageInputStream.java:114)
        at com.sun.imageio.spi.InputStreamImageInputStreamSpi.createInputStreamInstance(InputStreamImageInputStreamSpi.java:69)
        at javax.imageio.ImageIO.createImageInputStream(ImageIO.java:357)
        at com.atlassian.stash.internal.avatar.DiskAvatarRepository.readAvatar(DiskAvatarRepository.java:390)
        at com.atlassian.stash.internal.avatar.DiskAvatarRepository.store(DiskAvatarRepository.java:269)
        at com.atlassian.stash.internal.avatar.ConfigurableAvatarService.saveForUser(ConfigurableAvatarService.java:289)
        at com.atlassian.stash.internal.user.DefaultUserService.doUpdateAvatar(DefaultUserService.java:634)
        at com.atlassian.stash.internal.user.DefaultUserService.updateAvatar(DefaultUserService.java:569)
        at com.atlassian.stash.internal.web.users.UserProfileController.uploadAvatar(UserProfileController.java:67)
        ... 29 common frames omitted