added system exits in exceptions for building plugins from spec

src/java/main/gov/noaa/messageapi/parsers/plugins/ContainerPluginParser.java

@@ -22,13 +22,14 @@ public class ContainerPluginParser extends BasePluginParser implements IPluginPa
             Object[] args = {getConstructor()};
             return (IContainer) constructPlugin(Class.forName(getPlugin()), ctrClasses, args);
         } catch (Exception e) {
+            System.err.println("Exception thrown while building the container plugin from spec: " + e.getMessage());
+            System.exit(1);
             return null;
         }
     }
 
     protected Set<String> getRequiredConstructorKeys() {
         Set<String> set = new HashSet<String>();
-        //set.add("metadata");
         set.add("collections");
         return set;
     }

src/java/main/gov/noaa/messageapi/parsers/plugins/ProtocolPluginParser.java

@@ -22,13 +22,14 @@ public class ProtocolPluginParser extends BasePluginParser implements IPluginPar
             Object[] args = {getConstructor()};
             return (IProtocol) constructPlugin(Class.forName(getPlugin()), ctrClasses, args);
         } catch (Exception e) {
+            System.err.println("Exception thrown while building the protocol plugin from spec: " + e.getMessage());
+            System.exit(1);
             return null;
         }
     }
 
     protected Set<String> getRequiredConstructorKeys() {
         Set<String> set = new HashSet<String>();
-        //set.add("metadata");
         set.add("endpoints");
         return set;
     }

src/java/main/gov/noaa/messageapi/parsers/plugins/SchemaPluginParser.java

@@ -28,7 +28,6 @@ public class SchemaPluginParser extends BasePluginParser implements IPluginParse
 
     protected Set<String> getRequiredConstructorKeys() {
         Set<String> set = new HashSet<String>();
-        //set.add("metadata");
         set.add("fields");
         return set;
     }

src/java/main/gov/noaa/messageapi/parsers/plugins/SessionPluginParser.java

@@ -31,6 +31,8 @@ public class SessionPluginParser extends BasePluginParser implements IPluginPars
             Object[] args = {container, protocol, schema};
             return (ISession) constructPlugin(Class.forName(getPlugin()), ctrClasses, args);
         } catch (Exception e) {
+            System.err.println("Exception thrown while building the session plugin from spec: " + e.getMessage());
+            System.exit(1);
             return null;
         }
     }