Assembly needs to go after the shader .jar is built.

pom.xml

@@ -355,24 +355,6 @@
         </configuration>
       </plugin>
 
-      <!-- Assembly builds .zip, etc. -->
-      <plugin>
-        <artifactId>maven-assembly-plugin</artifactId>
-        <version>2.2-beta-2</version>
-        <configuration>
-          <descriptor>${basedir}/src/main/assembly/default.xml</descriptor>
-        </configuration>
-        <executions>
-          <execution>
-            <id>release</id>
-            <phase>package</phase>
-            <goals>
-              <goal>single</goal>
-            </goals>
-          </execution>
-        </executions>
-      </plugin>
-
       <!-- Shades -->
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
@@ -396,6 +378,24 @@
         </executions>
       </plugin>
 
+      <!-- Assembly builds .zip, etc. -->
+      <plugin>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <version>2.2-beta-2</version>
+        <configuration>
+          <descriptor>${basedir}/src/main/assembly/default.xml</descriptor>
+        </configuration>
+        <executions>
+          <execution>
+            <id>release</id>
+            <phase>package</phase>
+            <goals>
+              <goal>single</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+
       <!-- Release plugin -->
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>