### Eclipse Workspace Patch 1.0
#P magnolia-module-mail
Index: src/main/java/info/magnolia/module/mail/MailTemplate.java
===================================================================
--- src/main/java/info/magnolia/module/mail/MailTemplate.java	(revision 32947)
+++ src/main/java/info/magnolia/module/mail/MailTemplate.java	(working copy)
@@ -111,19 +111,21 @@
     }
 
     public Map<String, String> getParameters() {
-        return parameters;
+        return new HashMap<String, String>(parameters);
     }
 
     public void setParameters(Map<String, String> parameters) {
-        this.parameters = parameters;
+        this.parameters.clear();
+        this.parameters.putAll(parameters);
     }
 
     public List<MailAttachment> getAttachments() {
-        return attachments;
+        return new ArrayList<MailAttachment>(attachments);
     }
 
     public void setAttachments(List<MailAttachment> attachments) {
-        this.attachments = attachments;
+        this.attachments.clear();
+        this.attachments.addAll(attachments);
     }
 
     public void addAttachment(MailAttachment attachment) {