First Java 19 version, barely tested.

Signed-off-by: Alexander Kriegisch <Alexander@Kriegisch.name>

org.aspectj.ajdt.core/src/main/java/org/aspectj/ajdt/internal/core/builder/AjBuildNotifier.java

 package org.aspectj.ajdt.internal.core.builder;
 
 import org.aspectj.bridge.IProgressListener;
-import org.eclipse.core.resources.IProject;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.aspectj.org.eclipse.jdt.internal.core.builder.BuildNotifier;
 
+import java.util.function.BooleanSupplier;
+
 /**
  * @author colyer
  *
 	 * @param monitor
 	 * @param project
 	 */
-	public AjBuildNotifier(IProgressMonitor monitor, IProject project) {
-		super(monitor, project);
+	public AjBuildNotifier(IProgressMonitor monitor, int buildKind, BooleanSupplier interruptSupplier) {
+		super(monitor, buildKind, interruptSupplier);
 	}
 
 	/* (non-Javadoc)

org.aspectj.ajdt.core/src/main/java/org/aspectj/ajdt/internal/core/builder/AspectJBuilder.java

 import java.util.Locale;
 import java.util.Map;
 import java.util.Properties;
+import java.util.function.BooleanSupplier;
 
 import org.aspectj.ajdt.core.AspectJCore;
 import org.aspectj.ajdt.internal.compiler.CompilerAdapter;
 	 * @see org.eclipse.jdt.internal.core.builder.JavaBuilder#createBuildNotifier(org.eclipse.core.runtime.IProgressMonitor,
 	 * org.eclipse.core.resources.IProject)
 	 */
-	protected BuildNotifier createBuildNotifier(IProgressMonitor monitor, IProject currentProject) {
-		return new AjBuildNotifier(monitor, currentProject);
+	protected BuildNotifier createBuildNotifier(IProgressMonitor monitor, int buildKind, BooleanSupplier interruptSupplier) {
+		return new AjBuildNotifier(monitor, buildKind, interruptSupplier);
 	}
 
 	private void initWorldAndWeaver(AjCompilerOptions options) {

pom.xml

 		<maven.javadoc.skip>true</maven.javadoc.skip>
 
 		<!-- Dependency versions -->
-		<jdt.core.version>1.9.9.1</jdt.core.version>
-		<asm.version>9.2</asm.version>
+		<jdt.core.version>1.9.10-SNAPSHOT</jdt.core.version>
+		<asm.version>9.3</asm.version>
 		<lib.ant.version>1.6.3</lib.ant.version>
 		<lib.ant.xerces.version>2.6.2</lib.ant.xerces.version>
 		<lib.regexp.version>1.2</lib.regexp.version>

taskdefs/src/main/java/org/aspectj/tools/ant/taskdefs/AjcTask.java

 
 	static final String[] TARGET_INPUTS = new String[] {
 		"1.1", "1.2", "1.3", "1.4", "1.5", "1.6", "1.7", "1.8", "1.9", "9",
-		"10", "11", "12", "13", "14", "15", "16", "17", "18"
+		"10", "11", "12", "13", "14", "15", "16", "17", "18", "19"
 	};
 	static final String[] SOURCE_INPUTS = new String[] {
 		"1.3", "1.4", "1.5", "1.6", "1.7", "1.8", "1.9", "9",
-		"10", "11", "12", "13", "14", "15", "16", "17", "18"
+		"10", "11", "12", "13", "14", "15", "16", "17", "18", "19"
 	};
 	static final String[] COMPLIANCE_INPUTS = new String[] {
 		"-1.3", "-1.4", "-1.5", "-1.6", "-1.7", "-1.8", "-1.9", "-9",
-		"-10", "-11", "-12", "-13", "-14", "-15", "-16", "-17", "-18"
+		"-10", "-11", "-12", "-13", "-14", "-15", "-16", "-17", "-18", "-19"
 	};
 
 	private static final ICommandEditor COMMAND_EDITOR;

util/src/main/java/org/aspectj/util/LangUtil.java

 		return 19 <= vmVersion;
 	}
 
+	public static boolean is20VMOrGreater() {
+		return 20 <= vmVersion;
+	}
+
 	/**
 	 * Shorthand for "if null, throw IllegalArgumentException"
 	 *