diff --git a/briar-api/src/main/java/org/briarproject/briar/api/privategroup/invitation/GroupInvitationManager.java b/briar-api/src/main/java/org/briarproject/briar/api/privategroup/invitation/GroupInvitationManager.java
index 73a60db14..dcff16b56 100644
--- a/briar-api/src/main/java/org/briarproject/briar/api/privategroup/invitation/GroupInvitationManager.java
+++ b/briar-api/src/main/java/org/briarproject/briar/api/privategroup/invitation/GroupInvitationManager.java
@@ -85,7 +85,8 @@ public interface GroupInvitationManager extends ConversationClient {
 	 * This indicates whether the {@link PrivateGroup} can be shared
 	 * with the contact.
 	 *
-	 * @throws ProtocolStateException if {@link PrivateGroup} was already left.
+	 * @throws ProtocolStateException if {@link PrivateGroup}
+	 * was already dissolved.
 	 */
 	SharingStatus getSharingStatus(Contact c, GroupId g) throws DbException;
 }
diff --git a/briar-api/src/main/java/org/briarproject/briar/api/sharing/SharingManager.java b/briar-api/src/main/java/org/briarproject/briar/api/sharing/SharingManager.java
index 023419126..73f538160 100644
--- a/briar-api/src/main/java/org/briarproject/briar/api/sharing/SharingManager.java
+++ b/briar-api/src/main/java/org/briarproject/briar/api/sharing/SharingManager.java
@@ -116,7 +116,7 @@ public interface SharingManager<S extends Shareable>
 	 * This indicates whether the {@link Shareable} can be shared
 	 * with the contact.
 	 *
-	 * @throws ProtocolStateException if {@link Shareable} was already left.
+	 * @throws ProtocolStateException if we already left the {@link Shareable}.
 	 */
 	SharingStatus getSharingStatus(GroupId g, Contact c) throws DbException;
 
@@ -126,7 +126,7 @@ public interface SharingManager<S extends Shareable>
 	 * This indicates whether the {@link Shareable} can be shared
 	 * with the contact.
 	 *
-	 * @throws ProtocolStateException if {@link Shareable} was already left.
+	 * @throws ProtocolStateException if we already left the {@link Shareable}.
 	 */
 	SharingStatus getSharingStatus(Transaction txn, GroupId g, Contact c)
 			throws DbException;
diff --git a/briar-core/src/main/java/org/briarproject/briar/privategroup/invitation/GroupInvitationManagerImpl.java b/briar-core/src/main/java/org/briarproject/briar/privategroup/invitation/GroupInvitationManagerImpl.java
index 0373ad2da..cd78802a5 100644
--- a/briar-core/src/main/java/org/briarproject/briar/privategroup/invitation/GroupInvitationManagerImpl.java
+++ b/briar-core/src/main/java/org/briarproject/briar/privategroup/invitation/GroupInvitationManagerImpl.java
@@ -539,7 +539,8 @@ class GroupInvitationManagerImpl extends ConversationClientImpl
 			if (state == START) return SharingStatus.SHAREABLE;
 			if (state == INVITED) return SharingStatus.INVITE_RECEIVED;
 			if (state == JOINED) return SharingStatus.SHARING;
-			// The creator can also be a LEFT state, after re-adding a contact
+			// Apart from the common case that the contact LEFT the group,
+			// the creator can also be a LEFT state, after re-adding a contact
 			// and re-creating the session with #recreateSession()
 			if (state == CreatorState.LEFT) return SharingStatus.SHARING;
 			if (state == DISSOLVED) throw new ProtocolStateException();