[FIX] `onMailetException` should catch jvm Error

`onMailetException` has had no impact upon `NoSuchMethodError`.
diff --git a/server/mailet/mailetcontainer-impl/src/main/java/org/apache/james/mailetcontainer/impl/ProcessorImpl.java b/server/mailet/mailetcontainer-impl/src/main/java/org/apache/james/mailetcontainer/impl/ProcessorImpl.java
index 617f61d..57c8fc1 100644
--- a/server/mailet/mailetcontainer-impl/src/main/java/org/apache/james/mailetcontainer/impl/ProcessorImpl.java
+++ b/server/mailet/mailetcontainer-impl/src/main/java/org/apache/james/mailetcontainer/impl/ProcessorImpl.java
@@ -79,7 +79,7 @@
                      .build()) {
             MailetPipelineLogging.logBeginOfMailetProcess(mailet, mail);
             mailet.service(mail);
-        } catch (Exception | NoClassDefFoundError me) {
+        } catch (Throwable me) {
             ex = me;
             String onMailetException = null;