Ernst Reissner created MDEP-878:
-----------------------------------
Summary: Unexpected failure in mappers: no empty replacement or
extension possible
Key: MDEP-878
URL: https://issues.apache.org/jira/browse/MDEP-878
Project: Maven Dependency Plugin
Issue Type: New Feature
Reporter: Ernst Reissner
I have the following configuration:
```
<artifactItem>
<groupId>eu.simuline.m2latex</groupId>
<artifactId>latex-maven-plugin</artifactId>
<version>${versionLatexPlugin}</version>
<type>jar</type>
<overWrite>true</overWrite>
<outputDirectory>src/main/resources</outputDirectory>
<includes>.latexmkrc.raw</includes>
<fileMappers>
<org.codehaus.plexus.components.io.filemappers.RegExpFileMapper>
<pattern>c.raw$</pattern>
<replacement>c</replacement>
</org.codehaus.plexus.components.io.filemappers.RegExpFileMapper>
</fileMappers>
</artifactItem>
```
As you can see, I tricked.
i wanted just to replace `.raw` by the empty string.
This was not possible and I think, an empty replacement is fully valid.
Also I would have used the `FileExtensionMapper`, but also this does not accept
an empty extension.
Analogously I think, this should be allowed.
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