Fix failures in testsuite-osgi-deps

- Make only netty-common depend on javassist at compile scope, and
  all others at test scope

common/pom.xml

@@ -30,6 +30,14 @@
   <name>Netty/Common</name>
 
   <dependencies>
+    <!-- Byte code generator - completely optional -->
+    <dependency>
+      <groupId>org.javassist</groupId>
+      <artifactId>javassist</artifactId>
+      <scope>compile</scope> <!-- override the 'test' scope defined at parent pom.xml -->
+      <optional>true</optional>
+    </dependency>
+
     <!-- Logging frameworks - completely optional -->
     <dependency>
       <groupId>org.slf4j</groupId>

pom.xml

@@ -106,6 +106,15 @@
 
   <dependencyManagement>
     <dependencies>
+      <!-- Byte code generator - completely optional -->
+      <dependency>
+        <groupId>org.javassist</groupId>
+        <artifactId>javassist</artifactId>
+        <version>3.17.1-GA</version>
+        <scope>compile</scope>
+        <optional>true</optional>
+      </dependency>
+
       <!-- JBoss Marshalling - completely optional -->
       <dependency>
         <groupId>org.jboss.marshalling</groupId>
@@ -211,13 +220,11 @@
   </dependencyManagement>
 
   <dependencies>
-    <!-- Byte code generator - completely optional -->
+    <!-- Enable Javassist support for all test runs -->
     <dependency>
       <groupId>org.javassist</groupId>
       <artifactId>javassist</artifactId>
-      <version>3.17.1-GA</version>
-      <scope>compile</scope>
-      <optional>true</optional>
+      <scope>test</scope>
     </dependency>
 
     <!-- Testing frameworks and related dependencies -->