java.nio.file.Accessdeniedexception error while doing video thumbnail

Question

I’m trying to create a thumbnail of a video using Jcodec.jar. On my "localhost" machine, it works perfectly, but when trying to do the same process on the server. Obs: I am using a Debian server it gives error and returns me this log.
If anyone can help I’m grateful, I’m almost sure the problem is permission but I don’t know how to solve.

java.nio.file.AccessDeniedException: /usr/share/tomcat7/c6340371082696266598.mp4
        at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84)
        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
        at sun.nio.fs.UnixFileSystemProvider.newByteChannel(UnixFileSystemProvider.java:214)
        at java.nio.file.Files.newByteChannel(Files.java:317)
        at java.nio.file.Files.createFile(Files.java:588)
        at java.nio.file.TempFileHelper.create(TempFileHelper.java:138)
        at java.nio.file.TempFileHelper.createTempFile(TempFileHelper.java:161)
        at java.nio.file.Files.createTempFile(Files.java:805)
        at br.com.academia.bean.ExercicioBean.uploadVideo(ExercicioBean.java:505)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.el.parser.AstValue.invoke(AstValue.java:264)
        at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278)
        at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
        at org.primefaces.component.fileupload.FileUpload.broadcast(FileUpload.java:318)
        at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:755)
        at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:931)
        at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
        at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
        at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)

Answer 1

Probably this is a permission error in the file system.

Try to give permission to write and read to with the command below as root: chmod 766 /usr/share/tomcat7