GP-4122: Switching to JDK 21

Ghidra/application.properties

@@ -2,8 +2,8 @@ application.name=Ghidra
 application.version=11.2
 application.release.name=DEV
 application.layout.version=2
-application.gradle.min=7.3
+application.gradle.min=8.5
 application.gradle.max=
-application.java.min=17
+application.java.min=21
 application.java.max=
-application.java.compiler=17
+application.java.compiler=21

GhidraDocs/InstallationGuide.html

@@ -19,7 +19,7 @@
 
 <h1>Ghidra Installation Guide</h1>
 <p>
-The installation information provided is effective as of Ghidra 11.1 and is subject to change with
+The installation information provided is effective as of Ghidra 11.2 and is subject to change with
 future releases.
 </p>
 
@@ -84,16 +84,16 @@ Ghidra team if you have a specific need.</p></blockquote>
 </ul>
 <h3>Software</h3>
 <ul>
-  <li>Java 17 64-bit Runtime and Development Kit (JDK) (see <a href="#JavaNotes">Java Notes</a>)</li>
+  <li>Java 21 64-bit Runtime and Development Kit (JDK) (see <a href="#JavaNotes">Java Notes</a>)</li>
   <ul>
-    <li>Free long term support (LTS) versions of JDK 17 are provided by:</li>
+    <li>Free long term support (LTS) versions of JDK 21 are provided by:</li>
     <ul>
       <li>
         <a href="https://adoptium.net/temurin/releases">
         Adoptium Temurin</a>
       </li>
       <li>
-        <a href="https://docs.aws.amazon.com/corretto/latest/corretto-17-ug/downloads-list.html">
+        <a href="https://docs.aws.amazon.com/corretto/latest/corretto-21-ug/downloads-list.html">
         Amazon Corretto</a>
       </li>
     </ul>
@@ -335,7 +335,7 @@ In order to build native binaries for your platform, you will need the following
 system:</p>
 <ul>
   <li>A <a href="#Requirements">supported</a> version of a Java Development Kit</li>
-  <li><a href="https://gradle.org/releases/">Gradle 7.3+</a></li>
+  <li><a href="https://gradle.org/releases/">Gradle 8.5+</a></li>
   <li>Software C/C++ build tools and library packages</li>
   <ul>
   	<li>macOS: <I>Xcode</I> or the abbreviated <I>Command Line Tools for Xcode</I> will supply the 

README.md

@@ -29,7 +29,7 @@ of how you might be impacted.
 
 ## Install
 To install an official pre-built multi-platform Ghidra release:  
-* Install [JDK 17 64-bit][jdk17]
+* Install [JDK 21 64-bit][jdk]
 * Download a Ghidra [release file][releases]
   - **NOTE:** The official multi-platform release file is named 
     `ghidra_<version>_<release>_<date>.zip` which can be found under the "Assets" drop-down.
@@ -46,8 +46,8 @@ directory.
 To create the latest development build for your platform from this source repository:
 
 ##### Install build tools:
-* [JDK 17 64-bit][jdk17]
-* [Gradle 7.3+][gradle]
+* [JDK 21 64-bit][jdk]
+* [Gradle 8.5+][gradle]
 * [Python3][python3] (version 3.7 to 3.12) with bundled pip
 * make, gcc, and g++ (Linux/macOS-only)
 * [Microsoft Visual Studio][vs] 2017+ or [Microsoft C++ Build Tools][vcbuildtools] with the
@@ -127,7 +127,7 @@ source project.
 [known-issues]: DevGuide.md#known-issues
 [career]: https://www.intelligencecareers.gov/nsa
 [releases]: https://github.com/NationalSecurityAgency/ghidra/releases
-[jdk17]: https://adoptium.net/temurin/releases
+[jdk]: https://adoptium.net/temurin/releases
 [gradle]: https://gradle.org/releases/
 [python3]: https://www.python.org/downloads/
 [vs]: https://visualstudio.microsoft.com/vs/community/

build.gradle

@@ -21,9 +21,10 @@ apply from: "gradle/support/loadApplicationProperties.gradle"
 
 
 /***************************************************************************************
-* Print current Gradle version and make sure the correct version of gradle is being used
+* Print current Java and Gradle version and make sure the correct version of gradle is being used
 ***************************************************************************************/
 import org.gradle.util.GradleVersion;
+println "Java: " + JavaVersion.current()
 println "Gradle: " + GradleVersion.current().version
 checkGradleVersion()