diff --git a/README.md b/README.md
index 58ec8eb..f61b342 100755
--- a/README.md
+++ b/README.md
@@ -103,7 +103,7 @@ A quick is provided by the following files:
 
  * Install FPM
    ```
-   sudo apt-get install ruby-dev build-essential debhelper devscripts rpm
+   sudo apt-get install ruby-dev build-essential debhelper devscripts rpm xalan
    gem install fpm --user
    ```
  * Get the repo 
diff --git a/extension-files/agent-config/zabbix_linux_process_threads.conf b/extension-files/agent-config/zabbix_linux_process_threads.conf
new file mode 100644
index 0000000..fc5e8e7
--- /dev/null
+++ b/extension-files/agent-config/zabbix_linux_process_threads.conf
@@ -0,0 +1 @@
+UserParameter=custom.process_threads[*],ps -e -T | wc -l
diff --git a/zabbix_templates/3.4/documentation/custom-service-springboot.html b/zabbix_templates/3.4/documentation/custom-service-springboot.html
new file mode 100644
index 0000000..c0c6ea2
--- /dev/null
+++ b/zabbix_templates/3.4/documentation/custom-service-springboot.html
@@ -0,0 +1,132 @@
+<html>
+<head>
+<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
+</head>
+<style type="text/css">
+
+   p.desc{
+     white-space:nowrap;
+   }
+
+   table.pretty {
+    margin: 1em 1em 1em 2em;
+    background: whitesmoke;
+    border-collapse: collapse;
+   }
+
+   table.pretty th, table.pretty td {
+    border: 1px gainsboro solid;
+    padding: 0.2em;
+   }
+
+   table.pretty th {
+    background: gainsboro;
+    text-align: left;
+   }
+
+   table.pretty caption {
+    margin-left: inherit;
+    margin-right: inherit;
+    white-space:nowrap;
+   }
+  </style>
+<body>
+<h2>Macro Overview</h2>
+
+  The following macros can be overloaded on host level.
+  <table class="pretty">
+<tr>
+<th>Name</th><th>Default</th>
+</tr>
+<tr>
+<td>{$SPRINGBOOT_BASE_URI}</td><td>http://127.0.0.1:1234/actuator</td>
+</tr>
+</table>
+<h1>Static Elements</h1>
+<h2>Trigger Overview</h2>
+<table class="pretty">
+<tr>
+<th>Name</th><th>Description</th><th>Priority</th><th>Expression</th><th>Dependencies</th>
+</tr>
+</table>
+<h2>Graph Overview</h2>
+<table class="pretty">
+<tr>
+<th>Name</th><th>Elements</th>
+</tr>
+</table>
+<h2>Item Overview</h2>
+<table class="pretty">
+<tr>
+<th>Type</th><th>Name</th><th>Key</th><th>Description</th><th>Interval (sec)</th><th>History Days</th><th>Trend Days</th>
+</tr>
+</table>
+<h1>Discovery rule "Metric http.server.requests by uri"</h1>
+<table class="pretty">
+<tr>
+<th>Name</th><th>Value</th>
+</tr>
+<tr>
+<td>Name</td><td>Metric http.server.requests by uri</td>
+</tr>
+<tr>
+<td>Key</td><td>springboot.discovery[{$SPRINGBOOT_BASE_URI}/metrics/http.server.requests,uri]</td>
+</tr>
+<tr>
+<td>Type</td><td>
+<p class="desc">Zabbix Agent (active)</p>
+</td>
+</tr>
+<tr>
+<td>Delay</td><td>10m</td>
+</tr>
+</table>
+<h2>Trigger Overview</h2>
+<table class="pretty">
+<tr>
+<th>Name</th><th>Description</th><th>Priority</th><th>Expression</th><th>Dependencies</th>
+</tr>
+</table>
+<h2>Graph Overview</h2>
+<table class="pretty">
+<tr>
+<th>Name</th><th>Elements</th>
+</tr>
+<tr>
+<td>Performance HTTP {#URI}</td><td><tt>springboot.uri[{#URI},requests_per_second]<br>springboot.uri[{#URI},average_responsetime]<br>
+</tt></td>
+</tr>
+</table>
+<h2>Item Overview</h2>
+<table class="pretty">
+<tr>
+<th>Type</th><th>Name</th><th>Key</th><th>Description</th><th>Interval (sec)</th><th>History Days</th><th>Trend Days</th>
+</tr>
+<tr>
+<td>
+<p class="desc">Zabbix Agent (active)</p>
+</td><td>Performance HTTP {#URI} Data</td><td><tt>springboot.get[{$SPRINGBOOT_BASE_URI}/metrics/http.server.requests,tag=uri:{#URI}]</tt></td><td></td><td>3m</td><td>2h</td><td>0</td>
+</tr>
+<tr>
+<td>
+<p class="desc">Calculated</p>
+</td><td>{#URI} Average Request Time</td><td><tt>springboot.uri[{#URI},average_responsetime]</tt></td><td></td><td>1m</td><td>14d</td><td>90d</td>
+</tr>
+<tr>
+<td>
+<p class="desc">ERROR - Unknown</p>
+</td><td>{#URI} Requests</td><td><tt>springboot.uri[{#URI},requests]</tt></td><td></td><td>0</td><td>7d</td><td>90d</td>
+</tr>
+<tr>
+<td>
+<p class="desc">ERROR - Unknown</p>
+</td><td>{#URI} Requests/sec</td><td><tt>springboot.uri[{#URI},requests_per_second]</tt></td><td></td><td>0</td><td>7d</td><td>90d</td>
+</tr>
+<tr>
+<td>
+<p class="desc">ERROR - Unknown</p>
+</td><td>{#URI} Time</td><td><tt>springboot.uri[{#URI},time]</tt></td><td></td><td>0</td><td>7d</td><td>90d</td>
+</tr>
+</table>
+</body>
+</html>

Name	Value
Name	Metric http.server.requests by uri
Key	springboot.discovery[{$SPRINGBOOT_BASE_URI}/metrics/http.server.requests,uri]
Type	+ Zabbix Agent (active) +
Delay	10m
Type	Name	Key	Interval (sec)	History Days	Trend Days
+ Zabbix Agent (active) +	Performance HTTP {#URI} Data	`springboot.get[{$SPRINGBOOT_BASE_URI}/metrics/http.server.requests,tag=uri:{#URI}]`	3m	2h	0
+ Calculated +	{#URI} Average Request Time	`springboot.uri[{#URI},average_responsetime]`	1m	14d	90d
+ ERROR - Unknown +	{#URI} Requests	`springboot.uri[{#URI},requests]`	0	7d	90d
+ ERROR - Unknown +	{#URI} Requests/sec	`springboot.uri[{#URI},requests_per_second]`	0	7d	90d
+ ERROR - Unknown +	{#URI} Time	`springboot.uri[{#URI},time]`	0	7d	90d