Maven clean install: Failed to execute goal org.apache.maven.plugins:maven-resources-plugin:3.2.0:resources

It might be a new bug coming with some latest release of Spring-boot (and then : Spring).

I had it. The workaround is to put in your pom.xml this corrected dependency :

<!-- Pour contourner un bug à la génération par Spring-boot 2.4.x : 
Failed to execute goal org.apache.maven.plugins:maven-resources-plugin:3.2.0:resources (default-resources) on project application-etude: Input length = 1 -->               
<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-resources-plugin</artifactId>
    <version>3.1.0</version>
</plugin>               

The root cause of the exception is that some resources contain resources which should not filtered (aka binary). The correct solution is to define an exclude for file extensions which should not filtered like the following:

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

I had the same problem and fixed it by adding in the pom.xml :

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

Here is the comment that help me solved the problem :
https://github.com/spring-projects/spring-boot/issues/24346#issuecomment-740345146

In my case, the error happened because I had properties files encoded with ANSI, while maven was trying to use UTF-8. I fixed it by converting my properties files to UTF-8, and then running mvn clean compile.