ControlSystemStudio · shroffk · Jun 17, 2026 · Jun 17, 2026 · Jun 17, 2026 · Jun 17, 2026
diff --git a/README.md b/README.md
@@ -8,7 +8,7 @@ https://control-system-studio.readthedocs.io
 
 
 ## Requirements
- - [JDK21 or later, suggested is OpenJDK](https://adoptium.net/en-GB/temurin/releases?version=21).
+ - [JDK 25 or later, suggested is OpenJDK](https://adoptium.net/en-GB/temurin/releases?version=25).
  - [maven 3.x](https://maven.apache.org/) or [ant](http://ant.apache.org/)
 
 
@@ -27,7 +27,7 @@ mvn clean verify -f dependencies/pom.xml
 Define the JAVA_HOME environment variable to point to your Java installation directory. 
 Mac OS users should use something like:
 ```
-export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk-21.0.11+10/Contents/Home
+export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk-25/Contents/Home
 ```
 Verify through:
 ```
@@ -73,14 +73,14 @@ Download "Eclipse for Java Developers" from https://www.eclipse.org/downloads/pa
 
 Start Eclipse like this:
 
-    export JAVA_HOME=/path/to/your/jdk-21-or-later
+    export JAVA_HOME=/path/to/your/jdk-25-or-later
     export PATH="$JAVA_HOME/bin:$PATH"
     eclipse/eclipse -consoleLog
 
 Check Eclipse Preferences:
 
- * Java, Installed JREs: JDK 21-or-later should be the default
- * Java, Compiler: JDK Compliance should be "21" or higher
+ * Java, Installed JREs: JDK 25-or-later should be the default
+ * Java, Compiler: JDK Compliance should be "25" or higher
 
 
 ### Use plain Java configuration
@@ -112,7 +112,7 @@ In Help/Eclipse Marketplace, search for Maven Integration for Eclipse Luna or ne
 Use File/Import/Maven/Existing Maven Projects to import the phoebus source code.
 
 There can be a compiler error because the "JRE System Library" in the Package Explorer shows "[J2SE-1.4]".
-Right click on the affected projects (greeting-app, probe), Build Path, Configure Build Path, Libraries, Edit the JRE System Library to use the Workspace default (jdk-21).
+Right click on the affected projects (greeting-app, probe), Build Path, Configure Build Path, Libraries, Edit the JRE System Library to use the Workspace default (jdk-25).
 Restart Eclipse IDE.
 
 Can now start product/src/main/java/org.phoebus.product/Launcher.java.
@@ -126,14 +126,14 @@ To import the project:
 * Select the Phoebus directory
 * Import project from external model: Maven
 * Accept the default options and click Next twice
- * Ensure that the JDK is version 21 or above
+ * Ensure that the JDK is version 25 or above
 * Change the project name to Phoebus and click finish
 
 To run the Phoebus application:
 
 * Run | Edit Configurations...
 * Select + | Application
- * Module: Your JRE 21
+ * Module: Your JRE 25
 * Classpath `-cp`: select `product` from drop-down
 * Main class: `org.phoebus.product.Launcher`
 * Set the name to Phoebus
@@ -145,7 +145,7 @@ To run the Phoebus application:
 
 First download [NetBeans 9](https://netbeans.apache.org/download/nb90/nb90.html),
 then the target platform as described above. After running NetBeans, select
-**Tools** ➜ **Java Platforms** and make sure that a Java 9 or 10 platform is set as
+**Tools** ➜ **Java Platforms** and make sure that a Java 25 platform is set as
 the default one.
 
 To open the Maven project Select the **File** ➜ **Open Project…** and select the

diff --git a/app/queue-server/README.md b/app/queue-server/README.md
@@ -30,7 +30,7 @@ A JavaFX-based client for the [Bluesky QueueServer](https://blueskyproject.io/bl
 
 ### Prerequisites
 
-- **Java 21** or later
+- **Java 25** or later
 - **Maven** (for building from source)
 - **Bluesky Queue Server** running and accessible
 

diff --git a/phoebus-product/README.md b/phoebus-product/README.md
@@ -33,7 +33,7 @@ The following use cases have been verified:
 
  #### Prerequisites
 
- * A working Phoebus build environment, i.e. JDK 11 and Maven.
+ * A working Phoebus build environment, i.e. JDK 25 and Maven.
  * `jpackage` must be run on the same OS as the target OS, i.e. cross builds are not supported.
  * JDK 14 or newer. 
  * On Windows you also need to install the "WiX" tools, available here: https://wixtoolset.org/.
@@ -51,7 +51,7 @@ The following use cases have been verified:
  5. Determine a version for your application, in the following referred to as `app_version`.
  6. For Window installers determine a menu group in which the application will be placed. If the group does not
  exist, it will be created. 
- 7. Identify the path to the Java 11 SDK. In the following referred to as `<jdk_root>`. See below for additional
+ 7. Identify the path to the Java 25 SDK. In the following referred to as `<jdk_root>`. See below for additional
  information on the selecttion of target Java runtime.
 
  ##### `jpackage` build step 1
@@ -91,10 +91,9 @@ and MacOS at the European Spallation Source.
 
 ### Selection of target Java runtime
 During build (step 1) a target Java runtime is specified. If this option (`--runtime-image`) is omitted, `jpackage` will
-bundle the Java runtime containing the `jpackage` tool, i.e. Java 14+. Tests on Windows shows that the
-target runtime selection may impact the end result, i.e. the Phoebus application installed from the msi file. 
-For instance, while the Java runtime Adopt JDK 11.0.9 can be bundled into a working installation, 
-Adopt JDK 11.0.12 will not work when Phoebus is launched. On MacOS Adopt JDK 11.0.12 works fine.
+bundle the Java runtime containing the `jpackage` tool, i.e. Java 14+. Tests on Windows show that the
+target runtime selection may impact the end result, i.e. the Phoebus application installed from the msi file.
+When preparing installers, validate the exact JDK 25 runtime you plan to bundle on each supported OS.
 
 ### Application signing
 Starting from MacOS 13.2 (possibly from 13.0), installer packages must be signed for a hassle-free installation process.
@@ -112,4 +111,3 @@ Developer Program may request/create such certificates.
 
 `
 
-
diff --git a/pom.xml b/pom.xml
@@ -68,7 +68,7 @@
     <epics.version>7.0.11</epics.version>
     <epics.util.version>1.0.8</epics.util.version>
     <vtype.version>1.0.8</vtype.version>
-    <openjfx.version>21.0.7</openjfx.version>
+    <openjfx.version>25.0.3</openjfx.version>
     <jackson.version>2.12.3</jackson.version>
     <batik.version>1.17</batik.version>
     <mockito.version>2.23.4</mockito.version>
@@ -89,8 +89,8 @@
     <derby.version>10.16.1.1</derby.version>
     <jython.version>2.7.4b1</jython.version>
     <jgit.version>6.9.0.202403050737-r</jgit.version>
-    <maven.compiler.source>21</maven.compiler.source>
-    <maven.compiler.target>21</maven.compiler.target>
+    <maven.compiler.source>25</maven.compiler.source>
+    <maven.compiler.target>25</maven.compiler.target>
     <activemq.client.version>5.18.4</activemq.client.version>
     <commons.compress.version>1.26.1</commons.compress.version>
     <spring.framework.version>5.3.22</spring.framework.version>
@@ -100,7 +100,7 @@
     <plugins>
       <plugin>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.6.2</version>
+        <version>3.14.1</version>
         <configuration>
           <source>${maven.compiler.source}</source>
           <target>${maven.compiler.target}</target>
@@ -122,7 +122,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>3.0.0-M7</version>
+        <version>3.2.5</version>
         <configuration>
           <excludes>
             <exclude>**/*FXTest.java</exclude>
@@ -132,7 +132,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-failsafe-plugin</artifactId>
-        <version>2.22.0</version>
+        <version>3.2.5</version>
         <configuration>
           <skipITs>${skipITTests}</skipITs>
         </configuration>
@@ -288,7 +288,7 @@
           <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>3.0.0-M7</version>
+        <version>3.2.5</version>
             <configuration>
               <systemPropertyVariables>
                 <ignore_local_ipv6>true</ignore_local_ipv6>

diff --git a/services/alarm-config-logger/pom.xml b/services/alarm-config-logger/pom.xml
@@ -6,7 +6,7 @@
     <version>6.0.0-SNAPSHOT</version>
   </parent>
   <properties>
-    <java.version>21</java.version>
+    <java.version>25</java.version>
   </properties>
   <artifactId>service-alarm-config-logger</artifactId>
   <name>${project.groupId}:${project.artifactId}</name>

diff --git a/services/alarm-logger/Dockerfile b/services/alarm-logger/Dockerfile
@@ -1,4 +1,4 @@
-FROM eclipse-temurin:21-jre
+FROM eclipse-temurin:25-jre
 
 # deployment unit
 COPY target/service-alarm-logger-*.jar /alarmlogger/service-alarm-logger-*.jar

diff --git a/services/alarm-logger/pom.xml b/services/alarm-logger/pom.xml
@@ -6,7 +6,7 @@
     <version>6.0.0-SNAPSHOT</version>
   </parent>
   <properties>
-    <java.version>21</java.version>
+    <java.version>25</java.version>
     <elasticsearch.version>8.2.0</elasticsearch.version>
   </properties>
   <artifactId>service-alarm-logger</artifactId>

diff --git a/services/alarm-server/Dockerfile b/services/alarm-server/Dockerfile
@@ -1,4 +1,4 @@
-FROM eclipse-temurin:21-jre
+FROM eclipse-temurin:25-jre
 
 # deployment unit
 COPY target/service-alarm-server-*.jar /alarmserver/service-alarm-server-*.jar

diff --git a/services/save-and-restore/Dockerfile b/services/save-and-restore/Dockerfile
@@ -1,4 +1,4 @@
-FROM eclipse-temurin:21-jre
+FROM eclipse-temurin:25-jre
 
 # deployment unit
 COPY target/service-save-and-restore-*.jar /saveandrestore/service-save-and-restore-*.jar

diff --git a/services/save-and-restore/README.md b/services/save-and-restore/README.md
@@ -4,7 +4,7 @@ The save-and-restore service implements service as a collection
 of REST endpoints. These can be used by clients to manage configurations (aka save sets) and
 snapshots, to compare snapshots and to restore PV values from snapshots.
 
-The service is packaged as a self-contained Spring Boot jar file. External dependencies are limited to a JVM (Java 21+)
+The service is packaged as a self-contained Spring Boot jar file. External dependencies are limited to a JVM (Java 25+)
 and a running instance of Elasticsearch (8.x).
 
 # Build

diff --git a/services/save-and-restore/doc/index.rst b/services/save-and-restore/doc/index.rst
@@ -5,7 +5,7 @@ The save-and-restore service implements service as a collection
 of REST endpoints. These can be used by clients to manage configurations (aka save sets) and
 snapshots, to compare snapshots and to restore PV values from snapshots.
 
-The service is packaged as a self-contained Spring Boot jar file. External dependencies are limited to a JVM (Java 21+)
+The service is packaged as a self-contained Spring Boot jar file. External dependencies are limited to a JVM (Java 25+)
 and a running instance of Elasticsearch (8.x).
 
 Running the service

diff --git a/services/scan-server/Dockerfile b/services/scan-server/Dockerfile
@@ -1,4 +1,4 @@
-FROM eclipse-temurin:21-jre
+FROM eclipse-temurin:25-jre
 
 # deployment unit
 COPY target/service-scan-server-*.jar /scanserver/service-scan-server-*.jar