Pom that breaks p2-maven-plugin with ZipException

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
    <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/maven-v4_0_0.xsd">
        <modelVersion>4.0.0</modelVersion>

        <groupId>org.reficio.rcp</groupId>
        <artifactId>test-p2-site</artifactId>
        <packaging>pom</packaging>
        <version>2.0.7</version>

        <build>
            <plugins>
                <plugin>
                    <groupId>org.reficio</groupId>
                    <artifactId>p2-maven-plugin</artifactId>
                    <version>1.0.0</version>
                    <executions>
                        <execution>
                            <id>default-cli</id>
                            <configuration>
                                <artifacts>

                                    <artifact><id>com.google.guava:guava:14.0.1</id></artifact>
                                    
                                    <artifact>
                                      <id>net.sf.trove4j:trove4j:3.0.3</id>
                                      <override>true</override>
                                      <instructions>                                      
                                        <Bundle-Name>Trove: High Performance Collections for Java</Bundle-Name>                                      
                                      </instructions>
                                    </artifact>
                                    
 
                                    <artifact>
                                      <id>org.apache.commons:commons-lang3:3.1</id>
                                      <override>true</override>
                                      <instructions>
                                        <Bundle-Name>Lang3: Apache Commons Lang for Java</Bundle-Name>                                      
                                        <Bundle-SymbolicName>org.apache.commons.lang3</Bundle-SymbolicName>
                                      </instructions>
                                    </artifact>
 
                                     <artifact>
                                      <id>commons-io:commons-io:2.4</id>
                                      <override>true</override>
                                      <instructions>
                                        <Bundle-Name>IO: Apache Commons IO for Java</Bundle-Name>                                      
                                        <Bundle-SymbolicName>org.apache.commons.io</Bundle-SymbolicName>
                                      </instructions>
                                    </artifact>

                                    <artifact>
                                      <id>org.antlr:antlr-runtime:3.5</id>
                                      <override>true</override>
                                      <instructions>
                                        <Bundle-Name>ANTLR: ANother Tool for Language Recognition for Java</Bundle-Name>                                      
                                        <Bundle-SymbolicName>org.antlr.runtime</Bundle-SymbolicName>
                                      </instructions>
                                    </artifact>
 
                                    <artifact>
                                      <id>org.mockito:mockito-core:1.9.5</id>
                                      <override>true</override>
                                      <instructions>
                                        <Bundle-Name>Mockito: Simpler and Better Mocking for Java</Bundle-Name>                                      
                                        <Bundle-SymbolicName>org.mockito</Bundle-SymbolicName>
                                      </instructions>
                                    </artifact>
 
                                    <artifact>
                                      <id>org.javassist:javassist:3.15.0-GA</id>
                                    </artifact>
 
 
                                    <artifact>
                                      <id>javax.transaction:jta:1.1</id>
                                      <override>true</override>
                                      <instructions>
                                        <Bundle-SymbolicName>javax.transaction</Bundle-SymbolicName>
                                      </instructions>
                                    </artifact>

                                     <artifact>
                                      <id>xerces:xercesImpl:2.11.0</id>
                                      <override>true</override>
                                      <instructions>
                                        <Bundle-Name>Xerces: Apache XML Parser for Java</Bundle-Name>                                      
                                        <Bundle-SymbolicName>org.apache.xerces</Bundle-SymbolicName>
                                      </instructions>
                                    </artifact>

                                    <artifact>
                                      <id>asm:asm-tree:3.3.1</id>
                                      <override>true</override>
                                      <instructions>
                                        <Bundle-SymbolicName>org.objectweb.asm.tree</Bundle-SymbolicName>
                                      </instructions>
                                    </artifact>

                                    <artifact>
                                      <id>asm:asm:3.3.1</id>
                                      <override>true</override>
                                      <instructions>
                                        <Bundle-SymbolicName>org.objectweb.asm</Bundle-SymbolicName>
                                      </instructions>
                                    </artifact>
                                    
                              </artifacts>
                            </configuration>
                        </execution>
                    </executions>
                </plugin>

                <plugin>
                    <groupId>org.mortbay.jetty</groupId>
                    <artifactId>jetty-maven-plugin</artifactId>
                    <version>8.1.5.v20120716</version>
                    <configuration>
                        <scanIntervalSeconds>10</scanIntervalSeconds>
                        <webAppSourceDirectory>${basedir}/target/repository/</webAppSourceDirectory>
                        <webApp>
                            <contextPath>/site</contextPath>
                        </webApp>
                       <stopPort>9966</stopPort>
                       <stopKey>kdm</stopKey>
                   </configuration>
                </plugin>
            </plugins>
        </build>

        <pluginRepositories>
            <pluginRepository>
                <id>reficio</id>
                <url>http://repo.reficio.org/maven/</url>
            </pluginRepository>
        </pluginRepositories>

    </project>