Error in validation of deployment with younger Java classes than source files

If you have one or more of the errors below during the validation phase of the deployment wizard in the Xpert.ivy Server, then you most possibly have extracted your Xpert.ivy project with a packer tool that has one flaw.

During validation the Xpert.ivy Server performs a check to ensure that the compiled Java classes are younger than the corresponding Java source files to make sure that the compiled classes are on par with the most current version of the source file.

Unfortunately, some packer tools like WinZip or the Windows internal packer do not respect the original file timestamps but overwrite them with the timestamp of the extraction. And then it may happen that Java source files are extracted later than the corresponding classes leading to the error. Please check out your favorite packer for correct handling of timestamps or use a packer that respects the modification timestamps like 7-zip.