From 42a0fe343b236dde86ffbfaa8a7f27a0d60050f5 Mon Sep 17 00:00:00 2001
From: Robin Smith <robin.smith@forgerock.com>
Date: Thu, 25 Feb 2021 13:35:08 +0000
Subject: [PATCH] Prevent NPE if Windows agent private key credential ID is not
 set

---
 .../plugins/computeengine/ComputeEngineWindowsLauncher.java     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/com/google/jenkins/plugins/computeengine/ComputeEngineWindowsLauncher.java b/src/main/java/com/google/jenkins/plugins/computeengine/ComputeEngineWindowsLauncher.java
index 6862067f..cd59e478 100644
--- a/src/main/java/com/google/jenkins/plugins/computeengine/ComputeEngineWindowsLauncher.java
+++ b/src/main/java/com/google/jenkins/plugins/computeengine/ComputeEngineWindowsLauncher.java
@@ -69,7 +69,7 @@ public static boolean authenticateSSH(
       TaskListener listener)
       throws Exception {
     boolean isAuthenticated;
-    if (!windowsConfig.getPrivateKeyCredentialsId().isEmpty()) {
+    if (windowsConfig.getPrivateKeyCredentialsId() && !windowsConfig.getPrivateKeyCredentialsId().isEmpty()) {
       isAuthenticated =
           SSHAuthenticator.newInstance(
                   sshConnection, windowsConfig.getPrivateKeyCredentials(), windowsUsername)