diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 3be5870de..a8aa897a3 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -14,7 +14,7 @@ kaml = { module = "com.charleskorn.kaml:kaml", version = "0.65.0" }
 junit = { module = "junit:junit", version = "4.13.2" }
 mockito = { module = "org.mockito:mockito-core", version = "4.11.0" }
 antlr = { module = "org.antlr:antlr4", version = "4.7.2" }
-eclipseJDT = { module = "org.eclipse.jdt:org.eclipse.jdt.core", version = "3.40.0" }
+eclipseJDT = { module = "org.eclipse.jdt:org.eclipse.jdt.core", version = "3.16.0" }
 classpathExplorer = { module = "com.google.classpath-explorer:classpath-explorer", version = "1.0" }
 netbeansSwing = { module = "org.netbeans.api:org-netbeans-swing-outline", version = "RELEASE210" }
 ant = { module = "org.apache.ant:ant", version = "1.10.14" }
diff --git a/java/src/processing/mode/java/RuntimePathBuilder.java b/java/src/processing/mode/java/RuntimePathBuilder.java
index 33e8f209c..f60471e0a 100644
--- a/java/src/processing/mode/java/RuntimePathBuilder.java
+++ b/java/src/processing/mode/java/RuntimePathBuilder.java
@@ -36,11 +36,7 @@ import java.util.stream.Stream;
 
 import com.google.classpath.ClassPathFactory;
 
-import processing.app.Library;
-import processing.app.Messages;
-import processing.app.Sketch;
-import processing.app.SketchException;
-import processing.app.Util;
+import processing.app.*;
 import processing.mode.java.preproc.ImportStatement;
 
 
@@ -576,7 +572,7 @@ public class RuntimePathBuilder {
    */
   protected String findFullyQualifiedJarName(String jarName) {
     StringJoiner joiner = new StringJoiner(File.separator);
-    joiner.add(System.getProperty("java.home"));
+    joiner.add(Platform.getJavaHome().getAbsolutePath());
     joiner.add("lib");
     joiner.add(jarName);
 
@@ -592,7 +588,7 @@ public class RuntimePathBuilder {
    */
   protected String buildForModule(String moduleName) {
     StringJoiner jmodPathJoiner = new StringJoiner(File.separator);
-    jmodPathJoiner.add(System.getProperty("java.home"));
+    jmodPathJoiner.add(Platform.getJavaHome().getAbsolutePath());
     jmodPathJoiner.add("jmods");
     jmodPathJoiner.add(moduleName);
     return jmodPathJoiner.toString();