diff --git a/Jenkinsfile b/Jenkinsfile
index f0bdcc9..453a79f 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,4 +1,9 @@
 #!/usr/bin/env groovy
 
 /* `buildPlugin` step provided by: https://github.com/jenkins-infra/pipeline-library */
-buildPlugin()
\ No newline at end of file
+buildPlugin(
+        useContainerAgent: true,
+        configurations: [
+                [platform: 'linux', jdk: 21],
+                [platform: 'windows', jdk: 17],
+        ])
diff --git a/README.md b/README.md
index a118b9b..eb384ff 100644
--- a/README.md
+++ b/README.md
@@ -1,14 +1,21 @@
-ssh-plugin
-===========
+# ssh-plugin
 
-You can use the SSH Plugin to run shell commands on a remote machine via ssh.
+## About
+
+This is a Jenkins plugin that allows for you to run operations with SSH. (I.e. commands, file management etc)
+
+## Usage Documentation and Examples
 
 More documentation available on the Jenkins wiki:
 
 https://wiki.jenkins-ci.org/display/JENKINS/SSH+Plugin
 
-Contribute
-------------
+## Building this project
 
-Fork and send a pull request (or create an issue on GitHub or in JIRA)
+```shell
+mvn install
+```
 
+## Contribute
+
+Fork and send a pull request (or create an issue on GitHub or in JIRA)
diff --git a/pom.xml b/pom.xml
index 094c31b..c1a4d9c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,94 +1,107 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-	<modelVersion>4.0.0</modelVersion>
-	<description>Execute shell scripts on remote host
-using ssh (pre and post build).
-Based on the cool scp plugin.</description>
-	<parent>
-		<groupId>org.jenkins-ci.plugins</groupId>
-		<artifactId>plugin</artifactId>
-		<version>1.609.3</version>
-	</parent>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <description>Execute shell scripts on remote host
+        using ssh (pre and post build).
+        Based on the cool scp plugin.
+    </description>
+    <parent>
+        <groupId>org.jenkins-ci.plugins</groupId>
+        <artifactId>plugin</artifactId>
+        <version>4.86</version>
+        <relativePath />
+    </parent>
+    <properties>
+        <jenkins.version>2.426.3</jenkins.version>
+    </properties>
+    <artifactId>ssh</artifactId>
+    <name>Jenkins SSH plugin</name>
+    <version>2.7-SNAPSHOT</version>
+    <packaging>hpi</packaging>
+    <url>http://wiki.jenkins-ci.org/display/JENKINS/SSH+plugin</url>
 
-	<artifactId>ssh</artifactId>
-	<name>Jenkins SSH plugin</name>
-	<version>2.7-SNAPSHOT</version>
-	<packaging>hpi</packaging>
-	<url>http://wiki.jenkins-ci.org/display/JENKINS/SSH+plugin</url>
+    <developers>
+        <developer>
+            <id>edmund_wagner</id>
+            <name>Edmund Wagner</name>
+        </developer>
+        <developer>
+            <id>ljader</id>
+            <name>Lukasz Jader</name>
+        </developer>
+    </developers>
 
-	<developers>
-		<developer>
-			<id>edmund_wagner</id>
-			<name>Edmund Wagner</name>
-		</developer>
-		<developer>
-			<id>ljader</id>
-			<name>Lukasz Jader</name>
-		</developer>
-	</developers>
-
-	<dependencies>
-		<dependency>
-			<groupId>org.jenkins-ci.plugins</groupId>
-			<artifactId>jsch</artifactId>
-			<version>0.1.54.1</version>
-		</dependency>
+    <dependencies>
+        <dependency>
+            <groupId>org.jenkins-ci.plugins</groupId>
+            <artifactId>jsch</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.jenkins-ci.plugins</groupId>
             <artifactId>ssh-credentials</artifactId>
-            <version>1.12</version>
         </dependency>
-	</dependencies>
+    </dependencies>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>io.jenkins.tools.bom</groupId>
+                <artifactId>bom-2.426.x</artifactId>
+                <version>3208.vb_21177d4b_cd9</version>
+                <scope>import</scope>
+                <type>pom</type>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
 
-	<build>
-		<plugins>
-			<plugin>
-				<artifactId>maven-release-plugin</artifactId>
-				<configuration>
-					<goals>deploy</goals>
-				</configuration>
-			</plugin>
-			<plugin>
-				<groupId>org.jenkins-ci.tools</groupId>
-				<artifactId>maven-hpi-plugin</artifactId>
-				<extensions>true</extensions>
-				<configuration>
-					<compatibleSinceVersion>2.5</compatibleSinceVersion>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <plugins>
+            <plugin>
+                <artifactId>maven-release-plugin</artifactId>
+                <configuration>
+                    <goals>deploy</goals>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.jenkins-ci.tools</groupId>
+                <artifactId>maven-hpi-plugin</artifactId>
+                <extensions>true</extensions>
+                <configuration>
+                    <compatibleSinceVersion>2.5</compatibleSinceVersion>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 
-	<distributionManagement>
-		<repository>
-			<id>maven.jenkins-ci.org</id>
-			<url>https://repo.jenkins-ci.org/releases/</url>
-		</repository>
-		<snapshotRepository>
-			<id>maven.jenkins-ci.org</id>
-			<url>https://repo.jenkins-ci.org/snapshots/</url>
-		</snapshotRepository>
-	</distributionManagement>
+    <distributionManagement>
+        <repository>
+            <id>maven.jenkins-ci.org</id>
+            <url>https://repo.jenkins-ci.org/releases/</url>
+        </repository>
+        <snapshotRepository>
+            <id>maven.jenkins-ci.org</id>
+            <url>https://repo.jenkins-ci.org/snapshots/</url>
+        </snapshotRepository>
+    </distributionManagement>
 
-	<!-- get every artifact through maven.glassfish.org, which proxies all the 
-		artifacts that we need -->
-	<repositories>
-		<repository>
-			<id>repo.jenkins-ci.org</id>
-			<url>https://repo.jenkins-ci.org/public/</url>
-		</repository>
-	</repositories>
+    <repositories>
+        <repository>
+            <id>repo.jenkins-ci.org</id>
+            <url>https://repo.jenkins-ci.org/public/</url>
+        </repository>
+    </repositories>
 
-	<pluginRepositories>
-		<pluginRepository>
-			<id>repo.jenkins-ci.org</id>
-			<url>https://repo.jenkins-ci.org/public/</url>
-		</pluginRepository>
-	</pluginRepositories>
+    <pluginRepositories>
+        <pluginRepository>
+            <id>repo.jenkins-ci.org</id>
+            <url>https://repo.jenkins-ci.org/releases/</url>
+        </pluginRepository>
+    </pluginRepositories>
 
-	<scm>
-		<connection>scm:git:git@github.com:jenkinsci/ssh-plugin.git</connection>
-		<developerConnection>scm:git:git@github.com:jenkinsci/ssh-plugin.git</developerConnection>
-	  <tag>HEAD</tag>
-  </scm>
+    <scm>
+        <connection>scm:git:https://github.com/jenkinsci/ssh-plugin.git</connection>
+        <developerConnection>scm:git:git@github.com:jenkinsci/ssh-plugin.git</developerConnection>
+        <tag>HEAD</tag>
+    </scm>
 
 </project>
diff --git a/src/main/java/org/jvnet/hudson/plugins/SSHBuildWrapper.java b/src/main/java/org/jvnet/hudson/plugins/SSHBuildWrapper.java
index ea4bd99..bd5d506 100644
--- a/src/main/java/org/jvnet/hudson/plugins/SSHBuildWrapper.java
+++ b/src/main/java/org/jvnet/hudson/plugins/SSHBuildWrapper.java
@@ -45,6 +45,7 @@
 import com.cloudbees.plugins.credentials.CredentialsProvider;
 import com.cloudbees.plugins.credentials.common.StandardUsernameCredentials;
 import com.jcraft.jsch.JSchException;
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 
 public final class SSHBuildWrapper extends BuildWrapper {
 
@@ -211,6 +212,8 @@ public String getHelpFile() {
 		}
 
 		@Override
+                @SuppressFBWarnings(value = "NP_PARAMETER_MUST_BE_NONNULL_BUT_MARKED_AS_NULLABLE",
+                                    justification = "Javadoc promises req is always non-null")
 		public BuildWrapper newInstance(StaplerRequest req, JSONObject formData) {
 			return req.bindJSON(clazz, formData);
 		}
diff --git a/src/main/java/org/jvnet/hudson/plugins/VariableReplacerUtil.java b/src/main/java/org/jvnet/hudson/plugins/VariableReplacerUtil.java
index f70a652..2dc52ef 100644
--- a/src/main/java/org/jvnet/hudson/plugins/VariableReplacerUtil.java
+++ b/src/main/java/org/jvnet/hudson/plugins/VariableReplacerUtil.java
@@ -19,10 +19,10 @@ public static String preludeWithEnvVars(String originalCommand, Map<String, Stri
 		}
 		vars.remove("_"); //why _ as key for build tool?
 		StringBuilder sb = new StringBuilder();
-		for (String variable : vars.keySet()) {
+		for (Map.Entry<String, String> entry : vars.entrySet()) {
 			//TODO handle case sensitivity for command and each variable
-			if (originalCommand.contains(variable) ) {
-				sb.append(variable).append("=\"").append(vars.get(variable)).append("\"\n");
+			if (originalCommand.contains(entry.getKey()) ) {
+				sb.append(entry.getKey()).append("=\"").append(entry.getValue()).append("\"\n");
 			}
 		}
 		sb.append("\n");
@@ -36,9 +36,9 @@ public static String scrub(String command, Map<String, String> vars, Set<String>
 		}
 		vars.remove("_");
 		for (String sensitive : eyesOnlyVars) {
-			for (String variable : vars.keySet()) {
-				if (variable.equals(sensitive)) {
-					String value = vars.get(variable);
+			for (Map.Entry<String, String> entry : vars.entrySet()) {
+				if (entry.getKey().equals(sensitive)) {
+					String value = vars.get(entry.getKey());
 					//TODO handle case sensitivity for command and each value
 					if (command.contains(value)) {
 						if (command.contains("\"" + value + "\"")) {
diff --git a/src/main/resources/index.jelly b/src/main/resources/index.jelly
index 17230b5..094279d 100644
--- a/src/main/resources/index.jelly
+++ b/src/main/resources/index.jelly
@@ -1,3 +1,4 @@
+<?jelly escape-by-default='true'?>
 <div>
   This plugin executes shell commands remotely using SSH protocol.
 </div>
diff --git a/src/main/resources/org/jvnet/hudson/plugins/SSHBuildWrapper/config.jelly b/src/main/resources/org/jvnet/hudson/plugins/SSHBuildWrapper/config.jelly
index 2bd6b4c..4ef5a00 100644
--- a/src/main/resources/org/jvnet/hudson/plugins/SSHBuildWrapper/config.jelly
+++ b/src/main/resources/org/jvnet/hudson/plugins/SSHBuildWrapper/config.jelly
@@ -1,3 +1,4 @@
+<?jelly escape-by-default='true'?>
 <j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:d="jelly:define" xmlns:l="/lib/layout" xmlns:t="/lib/hudson" xmlns:f="/lib/form">
 
   	<j:set var="helpURL" value="/plugin/ssh" />
diff --git a/src/main/resources/org/jvnet/hudson/plugins/SSHBuildWrapper/global.jelly b/src/main/resources/org/jvnet/hudson/plugins/SSHBuildWrapper/global.jelly
index e4cdc3a..cbb7a47 100644
--- a/src/main/resources/org/jvnet/hudson/plugins/SSHBuildWrapper/global.jelly
+++ b/src/main/resources/org/jvnet/hudson/plugins/SSHBuildWrapper/global.jelly
@@ -1,3 +1,4 @@
+<?jelly escape-by-default='true'?>
 <j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:d="jelly:define" xmlns:l="/lib/layout" xmlns:t="/lib/hudson" xmlns:f="/lib/form" xmlns:c="/lib/credentials">
   <!-- nothing to configure -->
   <f:section title="${%SSH remote hosts}">
diff --git a/src/main/resources/org/jvnet/hudson/plugins/SSHBuilder/config.jelly b/src/main/resources/org/jvnet/hudson/plugins/SSHBuilder/config.jelly
index 2148173..aa6a2a8 100644
--- a/src/main/resources/org/jvnet/hudson/plugins/SSHBuilder/config.jelly
+++ b/src/main/resources/org/jvnet/hudson/plugins/SSHBuilder/config.jelly
@@ -1,3 +1,4 @@
+<?jelly escape-by-default='true'?>
 <j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:d="jelly:define" xmlns:l="/lib/layout" xmlns:t="/lib/hudson" xmlns:f="/lib/form">
 
     <f:entry title="${%SSH site}" field="siteName">
diff --git a/src/test/resources/org/jvnet/hudson/plugins/SSHBuildWrapperTest/credentialsForSameSiteAreMerged/config.xml b/src/test/resources/org/jvnet/hudson/plugins/SSHBuildWrapperTest/credentialsForSameSiteAreMerged/config.xml
index 34cebd0..efd840b 100644
--- a/src/test/resources/org/jvnet/hudson/plugins/SSHBuildWrapperTest/credentialsForSameSiteAreMerged/config.xml
+++ b/src/test/resources/org/jvnet/hudson/plugins/SSHBuildWrapperTest/credentialsForSameSiteAreMerged/config.xml
@@ -1,13 +1,10 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <hudson>
-  <version>1.609.3</version>
+  <version>2.320</version>
   <numExecutors>1</numExecutors>
   <mode>NORMAL</mode>
   <useSecurity>true</useSecurity>
-  <authorizationStrategy class="hudson.security.ProjectMatrixAuthorizationStrategy">
-    <permission>hudson.model.Hudson.Read:anonymous</permission>
-    <permission>hudson.model.Item.Read:anonymous</permission>
-  </authorizationStrategy>
+  <authorizationStrategy class="hudson.security.AuthorizationStrategy$Unsecured"/>
   <securityRealm class="hudson.security.LegacySecurityRealm"/>
   <jdks/>
   <slaves/>
diff --git a/src/test/resources/org/jvnet/hudson/plugins/SSHBuildWrapperTest/loadAllThreePossibleSiteConfigs/config.xml b/src/test/resources/org/jvnet/hudson/plugins/SSHBuildWrapperTest/loadAllThreePossibleSiteConfigs/config.xml
index 34cebd0..efd840b 100644
--- a/src/test/resources/org/jvnet/hudson/plugins/SSHBuildWrapperTest/loadAllThreePossibleSiteConfigs/config.xml
+++ b/src/test/resources/org/jvnet/hudson/plugins/SSHBuildWrapperTest/loadAllThreePossibleSiteConfigs/config.xml
@@ -1,13 +1,10 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <hudson>
-  <version>1.609.3</version>
+  <version>2.320</version>
   <numExecutors>1</numExecutors>
   <mode>NORMAL</mode>
   <useSecurity>true</useSecurity>
-  <authorizationStrategy class="hudson.security.ProjectMatrixAuthorizationStrategy">
-    <permission>hudson.model.Hudson.Read:anonymous</permission>
-    <permission>hudson.model.Item.Read:anonymous</permission>
-  </authorizationStrategy>
+  <authorizationStrategy class="hudson.security.AuthorizationStrategy$Unsecured"/>
   <securityRealm class="hudson.security.LegacySecurityRealm"/>
   <jdks/>
   <slaves/>
diff --git a/src/test/resources/org/jvnet/hudson/plugins/SSHBuildWrapperTest/loadConfigWorksFromOlder23Version/config.xml b/src/test/resources/org/jvnet/hudson/plugins/SSHBuildWrapperTest/loadConfigWorksFromOlder23Version/config.xml
index 34cebd0..efd840b 100644
--- a/src/test/resources/org/jvnet/hudson/plugins/SSHBuildWrapperTest/loadConfigWorksFromOlder23Version/config.xml
+++ b/src/test/resources/org/jvnet/hudson/plugins/SSHBuildWrapperTest/loadConfigWorksFromOlder23Version/config.xml
@@ -1,13 +1,10 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <hudson>
-  <version>1.609.3</version>
+  <version>2.320</version>
   <numExecutors>1</numExecutors>
   <mode>NORMAL</mode>
   <useSecurity>true</useSecurity>
-  <authorizationStrategy class="hudson.security.ProjectMatrixAuthorizationStrategy">
-    <permission>hudson.model.Hudson.Read:anonymous</permission>
-    <permission>hudson.model.Item.Read:anonymous</permission>
-  </authorizationStrategy>
+  <authorizationStrategy class="hudson.security.AuthorizationStrategy$Unsecured"/>
   <securityRealm class="hudson.security.LegacySecurityRealm"/>
   <jdks/>
   <slaves/>