From dfcb0fc45f4b3b59f123f14377f2cfe6635402d2 Mon Sep 17 00:00:00 2001
From: Gael Yvert <Gael.Yvert@ens-lyon.fr>
Date: Tue, 19 Jan 2021 11:30:11 +0100
Subject: [PATCH] plasmapper install doc: remind to install java if needed

---
 doc/install_plasmapper.md | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/doc/install_plasmapper.md b/doc/install_plasmapper.md
index 4c7b8df..76133ea 100755
--- a/doc/install_plasmapper.md
+++ b/doc/install_plasmapper.md
@@ -1,6 +1,10 @@
 # Instructions to install plasMapper on your server 
 
-On the targeted server type the following commands in a terminal :
+An installation step of plasmapper requires that you have java installed on your server (command jar). If this is not the case yet, type the following command (for Ubuntu):
+```sh
+sudo apt install default-jdk
+```
+Then, to install plasmapper on your server, type the following commands in a terminal :
 ```sh
    # extract PlasMapper source code
    cd opts/
-- 
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