Maven javadoc plugin-paquet n'existe pas

J'ai un petit problème avec le plugin maven javadoc. En fait, j'essaie de créer un javadoc, qui ne contient que deux de mes classes java. Mais quand j'essaie de construire, j'obtiens toujours une liste d'erreurs, par exemple une erreur 'le paquet n'existe pas', mais ce paquet est un paquet, que j'ai créé moi-même dans Eclipse.

Juste pour information: j'utilise Java 8, Eclipse Mars, m2eclipse. Je construis avec la commande par défaut "Maven install" de m2eclipse.

Voici mon pompon.XML fichier

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>de.sumafu</groupId>
  <artifactId>ChestBackpack</artifactId>
  <version>1.1.0</version>
  <repositories>
    <repository>
        <id>spigot-repo</id>
        <url>https://hub.spigotmc.org/nexus/content/groups/public/</url>
    </repository>
  </repositories>
  <build>
    <sourceDirectory>src</sourceDirectory>
    <resources>
      <resource>
        <directory>src</directory>
        <excludes>
          <exclude>**/*.java</exclude>
        </excludes>
      </resource>
      <resource>
            <directory>resources</directory>
            <filtering>false</filtering>
        </resource>
    </resources>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.3</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
      <plugin>
        <artifactId>maven-assembly-plugin</artifactId>
        <configuration>
          <descriptorRefs>
            <descriptorRef>jar-with-dependencies</descriptorRef>
          </descriptorRefs>
          <appendAssemblyId>false</appendAssemblyId>
          <archive>
            <manifest>
              <mainClass>org.sample.App</mainClass>
            </manifest>
          </archive>
        </configuration>
        <executions>
          <execution>
            <phase>package</phase>
            <goals>
              <goal>attached</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
      <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-source-plugin</artifactId>
          <executions>
            <execution>
              <id>attach-sources</id>
              <goals>
                <goal>jar</goal>
              </goals>
            </execution>
          </executions>
        </plugin>
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-javadoc-plugin</artifactId>
          <configuration>
            <sourceFileIncludes>
              <include>DataHandler.java</include>
              <include>ChestBackpackAPI.java</include>
            </sourceFileIncludes>
            <sourcepath>${basedir}/src/de/sumafu/ChestBackpack/Tools/;${basedir}/src/de/sumafu/ChestBackpack/Data/;${basedir}/src/de/sumafu/ChestBackpack/main/</sourcepath>
          </configuration>
          <executions>
            <execution>
              <id>attach-javadocs</id>
              <goals>
                <goal>jar</goal>
              </goals>
            </execution>
          </executions>
        </plugin>
    </plugins>
  </build>
  <dependencies>
    <dependency>
        <groupId>org.json</groupId>
        <artifactId>json</artifactId>
        <version>20150729</version>
    </dependency>
    <dependency>
        <groupId>Spigot</groupId>
        <artifactId>org.spigotmc</artifactId>
        <version>1.8.8</version>
        <scope>system</scope>
        <systemPath>${project.basedir}/spigot-1.8.8.jar</systemPath>
    </dependency>
  </dependencies>
</project>

Et le maven le sort (vous pouvez ignorer le premier avertissement, je le sais;))

[INFO] Scanning for projects...
[WARNING] 
[WARNING] Some problems were encountered while building the effective model for de.sumafu:ChestBackpack:jar:1.1.0
[WARNING] 'dependencies.dependency.systemPath' for Spigot:org.spigotmc:jar should not point at files within the project directory, ${project.basedir}/spigot-1.8.8.jar will be unresolvable by dependent projects @ line 101, column 18
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-source-plugin is missing. @ line 57, column 15
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-javadoc-plugin is missing. @ line 69, column 11
[WARNING] 
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING] 
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING] 
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building ChestBackpack 1.1.0
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ ChestBackpack ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 0 resource
[INFO] Copying 3 resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.3:compile (default-compile) @ ChestBackpack ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ ChestBackpack ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/test/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.3:testCompile (default-testCompile) @ ChestBackpack ---
[INFO] No sources to compile
[INFO] 
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ ChestBackpack ---
[INFO] 
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ ChestBackpack ---
[INFO] Building jar: /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/ChestBackpack-1.1.0.jar
[INFO] 
[INFO] --- maven-assembly-plugin:2.2-beta-5:attached (default) @ ChestBackpack ---
[INFO] META-INF/ already added, skipping
[INFO] META-INF/MANIFEST.MF already added, skipping
[INFO] org/ already added, skipping
[INFO] META-INF/maven/ already added, skipping
[INFO] META-INF/ already added, skipping
[INFO] META-INF/MANIFEST.MF already added, skipping
[INFO] org/ already added, skipping
[INFO] org/openrdf/ already added, skipping
[INFO] META-INF/maven/ already added, skipping
[INFO] META-INF/maven/org.openrdf.sesame/ already added, skipping
[INFO] META-INF/ already added, skipping
[INFO] META-INF/MANIFEST.MF already added, skipping
[INFO] org/ already added, skipping
[INFO] org/openrdf/ already added, skipping
[INFO] META-INF/maven/ already added, skipping
[INFO] META-INF/maven/org.openrdf.sesame/ already added, skipping
[INFO] META-INF/ already added, skipping
[INFO] META-INF/MANIFEST.MF already added, skipping
[INFO] org/ already added, skipping
[INFO] META-INF/maven/ already added, skipping
[INFO] Building jar: /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/ChestBackpack-1.1.0.jar
[INFO] META-INF/ already added, skipping
[INFO] META-INF/MANIFEST.MF already added, skipping
[INFO] org/ already added, skipping
[INFO] META-INF/maven/ already added, skipping
[INFO] META-INF/ already added, skipping
[INFO] META-INF/MANIFEST.MF already added, skipping
[INFO] org/ already added, skipping
[INFO] org/openrdf/ already added, skipping
[INFO] META-INF/maven/ already added, skipping
[INFO] META-INF/maven/org.openrdf.sesame/ already added, skipping
[INFO] META-INF/ already added, skipping
[INFO] META-INF/MANIFEST.MF already added, skipping
[INFO] org/ already added, skipping
[INFO] org/openrdf/ already added, skipping
[INFO] META-INF/maven/ already added, skipping
[INFO] META-INF/maven/org.openrdf.sesame/ already added, skipping
[INFO] META-INF/ already added, skipping
[INFO] META-INF/MANIFEST.MF already added, skipping
[INFO] org/ already added, skipping
[INFO] META-INF/maven/ already added, skipping
[WARNING] Configuration options: 'appendAssemblyId' is set to false, and 'classifier' is missing.
Instead of attaching the assembly file: /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/ChestBackpack-1.1.0.jar, it will become the file for main project artifact.
NOTE: If multiple descriptors or descriptor-formats are provided for this project, the value of this file will be non-deterministic!
[WARNING] Replacing pre-existing project main-artifact file: /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/ChestBackpack-1.1.0.jar
with assembly file: /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/ChestBackpack-1.1.0.jar
[INFO] 
[INFO] >>> maven-source-plugin:2.4:jar (attach-sources) > generate-sources @ ChestBackpack >>>
[INFO] 
[INFO] <<< maven-source-plugin:2.4:jar (attach-sources) < generate-sources @ ChestBackpack <<<
[INFO] 
[INFO] --- maven-source-plugin:2.4:jar (attach-sources) @ ChestBackpack ---
[INFO] Building jar: /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/ChestBackpack-1.1.0-sources.jar
[INFO] 
[INFO] --- maven-javadoc-plugin:2.10.3:jar (attach-javadocs) @ ChestBackpack ---
[WARNING] Source files encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] 
Loading source file /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/de/sumafu/ChestBackpack/Data/DataHandler.java...
Loading source file /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/de/sumafu/ChestBackpack/main/ChestBackpackAPI.java...
Constructing Javadoc information...
Standard Doclet version 1.8.0_20
Building tree for all the packages and classes...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/de/sumafu/ChestBackpack/Data/DataHandler.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/de/sumafu/ChestBackpack/main/ChestBackpackAPI.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/overview-frame.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/de/sumafu/ChestBackpack/Data/package-frame.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/de/sumafu/ChestBackpack/Data/package-summary.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/de/sumafu/ChestBackpack/Data/package-tree.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/de/sumafu/ChestBackpack/main/package-frame.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/de/sumafu/ChestBackpack/main/package-summary.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/de/sumafu/ChestBackpack/main/package-tree.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/constant-values.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/de/sumafu/ChestBackpack/Data/class-use/DataHandler.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/de/sumafu/ChestBackpack/main/class-use/ChestBackpackAPI.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/de/sumafu/ChestBackpack/Data/package-use.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/de/sumafu/ChestBackpack/main/package-use.html...
Building index for all the packages and classes...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/overview-tree.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/index-all.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/deprecated-list.html...
Building index for all classes...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/allclasses-frame.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/allclasses-noframe.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/index.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/overview-summary.html...
Generating /Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs/help-doc.html...
2 errors
13 warnings
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.084 s
[INFO] Finished at: 2015-11-23T20:45:36+01:00
[INFO] Final Memory: 20M/314M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-javadoc-plugin:2.10.3:jar (attach-javadocs) on project ChestBackpack: MavenReportException: Error while generating Javadoc:
[ERROR] Exit code: 1 - /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/de/sumafu/ChestBackpack/Data/DataHandler.java:13: error: package de.sumafu.ChestBackpack.Tools does not exist
[ERROR] import de.sumafu.ChestBackpack.Tools.InventoryStringDeSerializer;
[ERROR] ^
[ERROR] /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/de/sumafu/ChestBackpack/Data/DataHandler.java:14: error: cannot find symbol
[ERROR] import de.sumafu.ChestBackpack.main.ChestBackpack;
[ERROR] ^
[ERROR] symbol:   class ChestBackpack
[ERROR] location: package de.sumafu.ChestBackpack.main
[ERROR] /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/de/sumafu/ChestBackpack/Data/DataHandler.java:23: error: cannot find symbol
[ERROR] public DataHandler(ChestBackpack plugin){
[ERROR] ^
[ERROR] symbol:   class ChestBackpack
[ERROR] location: class DataHandler
[ERROR] /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/de/sumafu/ChestBackpack/Data/DataHandler.java:46: error: cannot find symbol
[ERROR] private ChestBackpack plugin;
[ERROR] ^
[ERROR] symbol:   class ChestBackpack
[ERROR] location: class DataHandler
[ERROR] /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/de/sumafu/ChestBackpack/Data/DataHandler.java:50: error: cannot find symbol
[ERROR] private DatabaseConnector connector = null;
[ERROR] ^
[ERROR] symbol:   class DatabaseConnector
[ERROR] location: class DataHandler
[ERROR] /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/de/sumafu/ChestBackpack/Data/DataHandler.java:51: error: cannot find symbol
[ERROR] private FlatfileHandler filehandler = null;
[ERROR] ^
[ERROR] symbol:   class FlatfileHandler
[ERROR] location: class DataHandler
[ERROR] /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/de/sumafu/ChestBackpack/main/ChestBackpackAPI.java:17: error: package de.sumafu.ChestBackpack.Tools does not exist
[ERROR] import de.sumafu.ChestBackpack.Tools.InventoryStringDeSerializer;
[ERROR] ^
[ERROR] /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/de/sumafu/ChestBackpack/main/ChestBackpackAPI.java:27: error: cannot find symbol
[ERROR] public ChestBackpackAPI(ChestBackpack plugin){
[ERROR] ^
[ERROR] symbol:   class ChestBackpack
[ERROR] location: class ChestBackpackAPI
[ERROR] /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/de/sumafu/ChestBackpack/main/ChestBackpackAPI.java:31: error: cannot find symbol
[ERROR] private ChestBackpack plugin = null;
[ERROR] ^
[ERROR] symbol:   class ChestBackpack
[ERROR] location: class ChestBackpackAPI
[ERROR] /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/de/sumafu/ChestBackpack/main/ChestBackpackAPI.java:51: error: cannot find symbol
[ERROR] public Inventory getInventory(UUID uuid) throws CannotLoadBackpackException{
[ERROR] ^
[ERROR] symbol:   class CannotLoadBackpackException
[ERROR] location: class ChestBackpackAPI
[ERROR] /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/de/sumafu/ChestBackpack/main/ChestBackpackAPI.java:95: error: cannot find symbol
[ERROR] public boolean openBackpack(UUID uuid) throws CannotLoadBackpackException{
[ERROR] ^
[ERROR] symbol:   class CannotLoadBackpackException
[ERROR] location: class ChestBackpackAPI
[ERROR] /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/de/sumafu/ChestBackpack/main/ChestBackpackAPI.java:151: error: cannot find symbol
[ERROR] public ItemStack addItemStack(UUID uuid, ItemStack itemstack) throws CannotLoadBackpackException{
[ERROR] ^
[ERROR] symbol:   class CannotLoadBackpackException
[ERROR] location: class ChestBackpackAPI
[ERROR] /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/de/sumafu/ChestBackpack/main/ChestBackpackAPI.java:193: error: cannot find symbol
[ERROR] public boolean containsItemStack(UUID uuid, ItemStack itemstack) throws CannotLoadBackpackException{
[ERROR] ^
[ERROR] symbol:   class CannotLoadBackpackException
[ERROR] location: class ChestBackpackAPI
[ERROR] /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/de/sumafu/ChestBackpack/Data/DataHandler.java:80: error: reference not found
[ERROR] * @param invString Backpack as serialized String, see {@link InventoryStringDeSerializer}
[ERROR] ^
[ERROR] /Users/user/Entwicklung/Bukkit/java/ChestBackpack/src/de/sumafu/ChestBackpack/main/ChestBackpackAPI.java:49: error: reference not found
[ERROR] * @throws CannotLoadBackpackException Throw if backpack cannot be loaded
[ERROR] ^
[ERROR] 
[ERROR] Command line was: /Library/Java/JavaVirtualMachines/jdk1.8.0_20.jdk/Contents/Home/jre/../bin/javadoc @options @argfile
[ERROR] 
[ERROR] Refer to the generated Javadoc files in '/Users/user/Entwicklung/Bukkit/java/ChestBackpack/target/apidocs' dir.
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

Mon code est open source et vous pouvez le trouver sur ma page BitBucket

J'espère que vous pouvez m'aider.