Maven: resource binary changes file size after build

Question

I am using the appengine-maven-plugin to build my Java Google App Engine project.

I include .p12 certificates in a WEB-INF sub-folder

When I build my application, the filesize of the certificate increases by a few KB. This renders it invalid. I have seen the same happen to .jks certificates too.

I have verified the validity of the certificate pre-build and used the same method to confirm the invalidity of the post-build certificate.

Can anyone tell me why the file size is changing and why it is not simply copied to the WAR?

Thanks for your help.

Answer 1

Another solution is to disable filtering of .p12 files throughout your project by adding the following config:

<build>   ...   <plugins>     <plugin>       <groupId>org.apache.maven.plugins</groupId>       <artifactId>maven-resources-plugin</artifactId>                       <configuration>         <nonFilteredFileExtensions>           <nonFilteredFileExtension>p12</nonFilteredFileExtension>         </nonFilteredFileExtensions>       </configuration>     </plugin>   </plugins> </build>