maven-war-plugin vs. "Unexpected end of ZLIB input stream"

Answer 1

Most likely what you have said is correct.

Maven is probably still building the war when jboss starts to deploy it, so as jboss is reading it, it sees an invalid zip format. You could try using the exploded option, or deploy separately after everything is built.

Answer 2

I made ant script for it that can be used in maven

<build>
 <plugins>
  <plugin>
   <artifactId>maven-antrun-plugin</artifactId>
   <executions>
    <execution>
     <phase>package</phase>
     <configuration>
      <tasks>
       <property name="packageName" value="${project.build.finalName}.${project.packaging}" />
       <property name="outputDir" value="c:/jboss-4.2.1.GA/server/default/deploy" />
       <property name="file" value="${project.build.directory}\${packageName}" />
       <property name="tofile" value="${outputDir}/${packageName}" />
       <echo message="Moving ${file} to ${tofile}" />
       <move file="${file}" tofile="${tofile}" />
      </tasks>
     </configuration>
     <goals>
      <goal>run</goal>
     </goals>
    </execution>
   </executions>
  </plugin>
 </plugins>
</build>