[jira] [Updated] (VFS-294) NullPointerException in FtpFileObject.getChildFile()

2018-11-20 Thread Gary Gregory (JIRA) 


 [ 
https://issues.apache.org/jira/browse/VFS-294?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Gary Gregory updated VFS-294:
-
Summary: NullPointerException in FtpFileObject.getChildFile()  (was: 
NullPointerException in FtpFileObject.getChildFile)

> NullPointerException in FtpFileObject.getChildFile()
> 
>
> Key: VFS-294
> URL: https://issues.apache.org/jira/browse/VFS-294
> Project: Commons VFS
>  Issue Type: Bug
>Affects Versions: 1.0
>Reporter: Johannes Scharf
>Priority: Major
>
> During my efforts to find a solution for VFS-293 I've discovered another bug 
> regarding threadsafety.
> It seems that FtpFileObject is at least not fully threadsafe. When a 
> FtpFileObject is accessed by multiple threads from time to time closing the 
> OutputStream for a file fails with a NullPointerException.
> Stacktrace:
> {noformat}
>  org.apache.commons.vfs.FileSystemException: Could not close the output 
> stream for file 
> "ftp://localhost/spring-framework-2.5.5/dist/resources/spring-jms-2.5.xsd;.
>   at 
> org.apache.commons.vfs.provider.DefaultFileContent$FileContentOutputStream.close(DefaultFileContent.java:599)
>   at 
> at.js.jtransporter.transporter.VFSTransporter$VFSOutputStream.close(VFSTransporter.java:219)
>   at at.js.jtransporter.util.Utils.close(Utils.java:40)
>   at 
> at.js.jtransporter.worker.resource.ResourceWorker.createFile(ResourceWorker.java:108)
>   at 
> at.js.jtransporter.worker.resource.ResourceWorker.processJob(ResourceWorker.java:52)
>   at 
> at.js.jtransporter.worker.AbstractRunnableWorker.run(AbstractRunnableWorker.java:82)
>   at 
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
>   at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
>   at java.lang.Thread.run(Thread.java:619)
> Caused by: org.apache.commons.vfs.FileSystemException: Could not close the 
> output stream for file 
> "ftp://localhost/spring-framework-2.5.5/dist/resources/spring-jms-2.5.xsd;.
>   at 
> org.apache.commons.vfs.provider.DefaultFileContent$FileContentOutputStream.onClose(DefaultFileContent.java:620)
>   at 
> org.apache.commons.vfs.util.MonitorOutputStream.close(MonitorOutputStream.java:63)
>   at 
> org.apache.commons.vfs.provider.DefaultFileContent$FileContentOutputStream.close(DefaultFileContent.java:595)
>   ... 8 more
> Caused by: java.lang.NullPointerException
>   at 
> org.apache.commons.vfs.provider.ftp.FtpFileObject.getChildFile(FtpFileObject.java:106)
>   at 
> org.apache.commons.vfs.provider.ftp.FtpFileObject.getInfo(FtpFileObject.java:181)
>   at 
> org.apache.commons.vfs.provider.ftp.FtpFileObject.onChange(FtpFileObject.java:269)
>   at 
> org.apache.commons.vfs.provider.AbstractFileObject.endOutput(AbstractFileObject.java:1325)
>   at 
> org.apache.commons.vfs.provider.DefaultFileContent.endOutput(DefaultFileContent.java:459)
>   at 
> org.apache.commons.vfs.provider.DefaultFileContent.access$200(DefaultFileContent.java:44)
>   at 
> org.apache.commons.vfs.provider.DefaultFileContent$FileContentOutputStream.onClose(DefaultFileContent.java:616)
>   ... 10 more
> {noformat}



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[jira] [Updated] (VFS-294) NullPointerException in FtpFileObject.getChildFile

2018-11-20 Thread Gary Gregory (JIRA) 


 [ 
https://issues.apache.org/jira/browse/VFS-294?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Gary Gregory updated VFS-294:
-
Summary: NullPointerException in FtpFileObject.getChildFile  (was: 
FtpFileObject is not threadsafe)

> NullPointerException in FtpFileObject.getChildFile
> --
>
> Key: VFS-294
> URL: https://issues.apache.org/jira/browse/VFS-294
> Project: Commons VFS
>  Issue Type: Bug
>Affects Versions: 1.0
>Reporter: Johannes Scharf
>Priority: Major
>
> During my efforts to find a solution for VFS-293 I've discovered another bug 
> regarding threadsafety.
> It seems that FtpFileObject is at least not fully threadsafe. When a 
> FtpFileObject is accessed by multiple threads from time to time closing the 
> OutputStream for a file fails with a NullPointerException.
> Stacktrace:
> {noformat}
>  org.apache.commons.vfs.FileSystemException: Could not close the output 
> stream for file 
> "ftp://localhost/spring-framework-2.5.5/dist/resources/spring-jms-2.5.xsd;.
>   at 
> org.apache.commons.vfs.provider.DefaultFileContent$FileContentOutputStream.close(DefaultFileContent.java:599)
>   at 
> at.js.jtransporter.transporter.VFSTransporter$VFSOutputStream.close(VFSTransporter.java:219)
>   at at.js.jtransporter.util.Utils.close(Utils.java:40)
>   at 
> at.js.jtransporter.worker.resource.ResourceWorker.createFile(ResourceWorker.java:108)
>   at 
> at.js.jtransporter.worker.resource.ResourceWorker.processJob(ResourceWorker.java:52)
>   at 
> at.js.jtransporter.worker.AbstractRunnableWorker.run(AbstractRunnableWorker.java:82)
>   at 
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
>   at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
>   at java.lang.Thread.run(Thread.java:619)
> Caused by: org.apache.commons.vfs.FileSystemException: Could not close the 
> output stream for file 
> "ftp://localhost/spring-framework-2.5.5/dist/resources/spring-jms-2.5.xsd;.
>   at 
> org.apache.commons.vfs.provider.DefaultFileContent$FileContentOutputStream.onClose(DefaultFileContent.java:620)
>   at 
> org.apache.commons.vfs.util.MonitorOutputStream.close(MonitorOutputStream.java:63)
>   at 
> org.apache.commons.vfs.provider.DefaultFileContent$FileContentOutputStream.close(DefaultFileContent.java:595)
>   ... 8 more
> Caused by: java.lang.NullPointerException
>   at 
> org.apache.commons.vfs.provider.ftp.FtpFileObject.getChildFile(FtpFileObject.java:106)
>   at 
> org.apache.commons.vfs.provider.ftp.FtpFileObject.getInfo(FtpFileObject.java:181)
>   at 
> org.apache.commons.vfs.provider.ftp.FtpFileObject.onChange(FtpFileObject.java:269)
>   at 
> org.apache.commons.vfs.provider.AbstractFileObject.endOutput(AbstractFileObject.java:1325)
>   at 
> org.apache.commons.vfs.provider.DefaultFileContent.endOutput(DefaultFileContent.java:459)
>   at 
> org.apache.commons.vfs.provider.DefaultFileContent.access$200(DefaultFileContent.java:44)
>   at 
> org.apache.commons.vfs.provider.DefaultFileContent$FileContentOutputStream.onClose(DefaultFileContent.java:616)
>   ... 10 more
> {noformat}



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