[ https://issues.apache.org/jira/browse/WW-5546?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Lukasz Lenart reassigned WW-5546: --------------------------------- Assignee: Lukasz Lenart > NPE in AbstractFileUploadInterceptor > ------------------------------------ > > Key: WW-5546 > URL: https://issues.apache.org/jira/browse/WW-5546 > Project: Struts 2 > Issue Type: Bug > Components: Core, Core Interceptors > Affects Versions: 6.7.4 > Reporter: Barta Tamás > Assignee: Lukasz Lenart > Priority: Major > Fix For: 6.8.0, 7.1.0 > > > I got the following exception: > > {code:java} > java.lang.NullPointerException: Cannot invoke "java.io.File.length()" because > "this.file" is null > at > deployment.deployment.ear//org.apache.struts2.dispatcher.multipart.StrutsUploadedFile.length(StrutsUploadedFile.java:52) > at > deployment.deployment.ear//org.apache.struts2.interceptor.AbstractFileUploadInterceptor.acceptFile(AbstractFileUploadInterceptor.java:133) > at > deployment.deployment.ear//org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:232) > at > deployment.deployment.ear//com.opensymphony.xwork2.interceptor.AbstractInterceptor.intercept(AbstractInterceptor.java:36) > at > deployment.deployment.ear//com.opensymphony.xwork2.DefaultActionInvocation.executeConditional(DefaultActionInvocation.java:303) > {code} > I think the bug is in AbstractFileUploadInterceptor: > > > {code:java} > if (file.getContent() == null) { > String errMsg = getTextMessage(action, > STRUTS_MESSAGES_ERROR_UPLOADING_KEY, new String[]{originalFilename}); > > errorMessages.add(errMsg); > LOG.warn(errMsg); > } > if (maximumSize != null && maximumSize < file.length()) { {code} > If file.getContent() is null (which means StrutsUploadedFile.file is null), > then warning is logged but there is no "return false" so execution continues > and file.length() will throw NPE as file is null in StrutsUploadedFile. > -- This message was sent by Atlassian Jira (v8.20.10#820010)