diff --git a/ui/org.eclipse.pde.ui.tests/.classpath b/ui/org.eclipse.pde.ui.tests/.classpath
index 675a5e2962..1aa9eca95a 100644
--- a/ui/org.eclipse.pde.ui.tests/.classpath
+++ b/ui/org.eclipse.pde.ui.tests/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-17"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src">
 		<attributes>
diff --git a/ui/org.eclipse.pde.ui.tests/.settings/org.eclipse.jdt.core.prefs b/ui/org.eclipse.pde.ui.tests/.settings/org.eclipse.jdt.core.prefs
index 3ec081faa6..f2f46bcefb 100644
--- a/ui/org.eclipse.pde.ui.tests/.settings/org.eclipse.jdt.core.prefs
+++ b/ui/org.eclipse.pde.ui.tests/.settings/org.eclipse.jdt.core.prefs
@@ -18,9 +18,9 @@ org.eclipse.jdt.core.compiler.annotation.nullable.secondary=
 org.eclipse.jdt.core.compiler.annotation.nullanalysis=disabled
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
 org.eclipse.jdt.core.compiler.codegen.methodParameters=do not generate
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=17
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=21
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=17
+org.eclipse.jdt.core.compiler.compliance=21
 org.eclipse.jdt.core.compiler.debug.lineNumber=generate
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.debug.sourceFile=generate
@@ -135,7 +135,7 @@ org.eclipse.jdt.core.compiler.problem.unusedTypeParameter=ignore
 org.eclipse.jdt.core.compiler.problem.unusedWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.varargsArgumentNeedCast=warning
 org.eclipse.jdt.core.compiler.release=enabled
-org.eclipse.jdt.core.compiler.source=17
+org.eclipse.jdt.core.compiler.source=21
 org.eclipse.jdt.core.formatter.align_type_members_on_columns=false
 org.eclipse.jdt.core.formatter.alignment_for_additive_operator=16
 org.eclipse.jdt.core.formatter.alignment_for_arguments_in_allocation_expression=16
diff --git a/ui/org.eclipse.pde.ui.tests/META-INF/MANIFEST.MF b/ui/org.eclipse.pde.ui.tests/META-INF/MANIFEST.MF
index 101de69cdb..44a16d1ff4 100644
--- a/ui/org.eclipse.pde.ui.tests/META-INF/MANIFEST.MF
+++ b/ui/org.eclipse.pde.ui.tests/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: PDE JUnit Tests
 Bundle-SymbolicName: org.eclipse.pde.ui.tests; singleton:=true
-Bundle-Version: 3.12.700.qualifier
+Bundle-Version: 3.13.0.qualifier
 Bundle-ClassPath: tests.jar
 Bundle-Vendor: Eclipse.org
 Require-Bundle: org.eclipse.pde.ui,
@@ -67,7 +67,7 @@ Import-Package: jakarta.annotation;version="[2.1.0,3.0.0)",
  org.mockito,
  org.mockito.stubbing,
  org.osgi.service.event;version="[1.3.0,2.0.0)"
-Bundle-RequiredExecutionEnvironment: JavaSE-17
+Bundle-RequiredExecutionEnvironment: JavaSE-21
 Eclipse-BundleShape: dir
 Automatic-Module-Name: org.eclipse.pde.ui.tests
 Bundle-ActivationPolicy: lazy
diff --git a/ui/org.eclipse.pde.ui.tests/pom.xml b/ui/org.eclipse.pde.ui.tests/pom.xml
index 18e28ba179..1eadb9554c 100644
--- a/ui/org.eclipse.pde.ui.tests/pom.xml
+++ b/ui/org.eclipse.pde.ui.tests/pom.xml
@@ -18,7 +18,7 @@
     <relativePath>../../</relativePath>
   </parent>
   <artifactId>org.eclipse.pde.ui.tests</artifactId>
-  <version>3.12.700-SNAPSHOT</version>
+  <version>3.13.0-SNAPSHOT</version>
   <packaging>eclipse-test-plugin</packaging>
 
   <properties>
diff --git a/ui/org.eclipse.pde.ui.tests/src/org/eclipse/pde/ui/tests/runtime/TestUtils.java b/ui/org.eclipse.pde.ui.tests/src/org/eclipse/pde/ui/tests/runtime/TestUtils.java
index 0e138f06c9..42aa7a2132 100644
--- a/ui/org.eclipse.pde.ui.tests/src/org/eclipse/pde/ui/tests/runtime/TestUtils.java
+++ b/ui/org.eclipse.pde.ui.tests/src/org/eclipse/pde/ui/tests/runtime/TestUtils.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2008, 2021 IBM Corporation and others.
+ * Copyright (c) 2008, 2024 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -201,7 +201,7 @@ private static String dumpRunningOrWaitingJobs(List<Job> jobs) {
 			Thread thread = job.getThread();
 			if (thread != null) {
 				ThreadInfo[] threadInfos = ManagementFactory.getThreadMXBean()
-						.getThreadInfo(new long[] { thread.getId() }, true, true);
+						.getThreadInfo(new long[] { thread.threadId() }, true, true);
 				if (threadInfos[0] != null) {
 					sb.append("\nthread info: ").append(threadInfos[0]);
 				}