diff --git a/headless-services/spring-boot-language-server/pom.xml b/headless-services/spring-boot-language-server/pom.xml
index 503e853de..ff13c574e 100644
--- a/headless-services/spring-boot-language-server/pom.xml
+++ b/headless-services/spring-boot-language-server/pom.xml
@@ -92,12 +92,34 @@
 			<groupId>org.springframework.ide.vscode</groupId>
 			<artifactId>commons-language-server</artifactId>
 			<version>${dependencies.version}</version>
-		</dependency>
+		</dependency>		
 		<dependency>
 			<groupId>org.eclipse.jdt</groupId>
 			<artifactId>org.eclipse.jdt.core</artifactId>
-			<version>3.19.0</version>
+			<version>3.20.100-SNAPSHOT</version>
 		</dependency>
+
+		<dependency>
+			<groupId>org.eclipse.platform</groupId>
+			<artifactId>org.eclipse.core.runtime</artifactId>
+			<version>3.17.0</version>
+		</dependency>
+		<dependency>
+			<groupId>org.eclipse.platform</groupId>
+			<artifactId>org.eclipse.core.resources</artifactId>
+			<version>3.13.600</version>
+		</dependency>
+		<dependency>
+			<groupId>org.eclipse.platform</groupId>
+			<artifactId>org.eclipse.core.filesystem</artifactId>
+			<version>1.7.600</version>
+		</dependency>
+		<dependency>
+			<groupId>org.eclipse.platform</groupId>
+			<artifactId>org.eclipse.text</artifactId>
+			<version>3.10.0</version>
+		</dependency>
+		
 		<dependency>
 			<groupId>commons-io</groupId>
 			<artifactId>commons-io</artifactId>
diff --git a/headless-services/spring-boot-language-server/src/main/java/org/springframework/ide/vscode/boot/java/utils/CompilationUnitCache.java b/headless-services/spring-boot-language-server/src/main/java/org/springframework/ide/vscode/boot/java/utils/CompilationUnitCache.java
index 77ea785ef..fb72524f9 100644
--- a/headless-services/spring-boot-language-server/src/main/java/org/springframework/ide/vscode/boot/java/utils/CompilationUnitCache.java
+++ b/headless-services/spring-boot-language-server/src/main/java/org/springframework/ide/vscode/boot/java/utils/CompilationUnitCache.java
@@ -295,6 +295,9 @@ public final class CompilationUnitCache implements DocumentContentProvider {
 		}
 		
 		CompilationUnit cu = CUResolver.convert(unit, source, AST.JLS11, options, needToResolveBindings, DefaultWorkingCopyOwner.PRIMARY, flags);
+		
+//		classpaths.forEach(e -> e.reset());
+		environment.cleanup();
 
 		return cu;
 	}