NPE on upload of corupted avatar image

java.lang.NullPointerException
	at com.atlassian.jira.web.action.admin.AvatarPicker.clampSize(AvatarPicker.java:273)
	at com.atlassian.jira.web.action.admin.AvatarPicker.doUpload(AvatarPicker.java:181)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at webwork.util.InjectionUtils$DefaultInjectionImpl.invoke(InjectionUtils.java:70)
	at webwork.util.InjectionUtils.invoke(InjectionUtils.java:56)
	at webwork.action.ActionSupport.invokeCommand(ActionSupport.java:433)
	at webwork.action.ActionSupport.execute(ActionSupport.java:157)
	at com.atlassian.jira.action.JiraActionSupport.execute(JiraActionSupport.java:54)
	at webwork.dispatcher.GenericDispatcher.executeAction(GenericDispatcher.java:139)
	at com.atlassian.jira.web.dispatcher.JiraWebworkActionDispatcher.service(JiraWebworkActionDispatcher.java:168)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.atlassian.jira.web.filters.JiraLastFilter.doFilter(JiraLastFilter.java:69)