java.util.concurrent.CompletionException: java.lang.NullPointerException: Cannot invoke "org.eclipse.jdt.core.dom.CompilationUnit.getPosition(int, int)" because "cu" is null
	at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(Unknown Source)
	at java.base/java.util.concurrent.CompletableFuture.completeThrowable(Unknown Source)
	at java.base/java.util.concurrent.CompletableFuture$UniApply.tryFire(Unknown Source)
	at java.base/java.util.concurrent.CompletableFuture$Completion.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException: Cannot invoke "org.eclipse.jdt.core.dom.CompilationUnit.getPosition(int, int)" because "cu" is null
	at org.springframework.ide.vscode.boot.java.JavaDefinitionHandler.lambda$handle$0(JavaDefinitionHandler.java:60)
	at org.springframework.ide.vscode.boot.java.utils.CompilationUnitCache.withCompilationUnit(CompilationUnitCache.java:237)
	at org.springframework.ide.vscode.boot.java.JavaDefinitionHandler.handle(JavaDefinitionHandler.java:58)
	at org.springframework.ide.vscode.languageserver.starter.LanguageServerAutoConf.lambda$registerDefinitionHandler$2(LanguageServerAutoConf.java:97)
	at org.springframework.ide.vscode.commons.languageserver.util.SimpleTextDocumentService.lambda$definition$6(SimpleTextDocumentService.java:371)
	... 5 more