diff --git a/src/main/java/org/jenkinsci/plugins/workflow/job/views/GraphVizAction.java b/src/main/java/org/jenkinsci/plugins/workflow/job/views/GraphVizAction.java
index 20c40f8b..69e22fcd 100644
--- a/src/main/java/org/jenkinsci/plugins/workflow/job/views/GraphVizAction.java
+++ b/src/main/java/org/jenkinsci/plugins/workflow/job/views/GraphVizAction.java
@@ -24,6 +24,7 @@
 
 package org.jenkinsci.plugins.workflow.job.views;
 
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import hudson.Extension;
 import hudson.model.Action;
 import hudson.util.HttpResponses;
@@ -76,7 +77,7 @@ public HttpResponse doDot() throws IOException {
         return HttpResponses.plainText(sw.toString());
     }
 
-    @edu.umd.cs.findbugs.annotations.SuppressWarnings("DM_DEFAULT_ENCODING")
+    @SuppressFBWarnings("DM_DEFAULT_ENCODING")
     public void doIndex(StaplerResponse rsp) throws IOException {
         Process p = new ProcessBuilder("dot", "-Tpng").start();
         writeDot(new PrintWriter(p.getOutputStream()));
diff --git a/src/test/java/org/jenkinsci/plugins/workflow/job/WorkflowRunTest.java b/src/test/java/org/jenkinsci/plugins/workflow/job/WorkflowRunTest.java
index 02989e50..097e0d37 100644
--- a/src/test/java/org/jenkinsci/plugins/workflow/job/WorkflowRunTest.java
+++ b/src/test/java/org/jenkinsci/plugins/workflow/job/WorkflowRunTest.java
@@ -444,10 +444,10 @@ private void assertCulprits(WorkflowRun b, String... expectedIds) throws IOExcep
         WorkflowJob p = r.jenkins.createProject(WorkflowJob.class, "p");
         p.setDefinition(new CpsFlowDefinition("", true));
         // Control case:
-        QueueItemAuthenticatorConfiguration.get().getAuthenticators().add(new MockQueueItemAuthenticator(Collections.singletonMap("p", User.get("admin").impersonate())));
+        QueueItemAuthenticatorConfiguration.get().getAuthenticators().add(new MockQueueItemAuthenticator(Collections.singletonMap("p", User.getById("admin", true).impersonate())));
         r.buildAndAssertSuccess(p);
         // Test case: build is never scheduled, queue item hangs with “Waiting for next available executor on master”
-        QueueItemAuthenticatorConfiguration.get().getAuthenticators().replace(new MockQueueItemAuthenticator(Collections.singletonMap("p", User.get("dev").impersonate())));
+        QueueItemAuthenticatorConfiguration.get().getAuthenticators().replace(new MockQueueItemAuthenticator(Collections.singletonMap("p", User.getById("dev", true).impersonate())));
         r.buildAndAssertSuccess(p);
     }