Ensure code minings are rendered when editor is initially opened

Add a null check for the `support` field in the
`AbstractInlinedAnnotation` class to prevent `NullPointerException` when
the `isInVisibleLines` method is called. This issue occurs because
`support` may not be initialized when the editor is first opened,
causing code minings to not render initially.

Author: tobias-melcher

bundles/org.eclipse.jface.text/src/org/eclipse/jface/internal/text/codemining/CodeMiningManager.java

@@ -145,12 +145,17 @@ private void updateCodeMinings() {
 		IProgressMonitor monitor= fMonitor;
 		// Collect the code minings for the viewer
 		getCodeMinings(fViewer, fCodeMiningProviders, monitor).thenAccept(symbols -> {
-			// check if request was canceled.
-			monitor.isCanceled();
-			// then group code minings by lines position
-			Map<Position, List<ICodeMining>> groups= groupByLines(symbols, fCodeMiningProviders);
-			// resolve and render code minings
-			renderCodeMinings(groups, fViewer, monitor);
+			try {
+				// check if request was canceled.
+				monitor.isCanceled();
+				// then group code minings by lines position
+				Map<Position, List<ICodeMining>> groups= groupByLines(symbols, fCodeMiningProviders);
+				// resolve and render code minings
+				renderCodeMinings(groups, fViewer, monitor);
+			} catch (Throwable e) {
+				logCodeMiningProviderException(e);
+				throw e;
+			}
 		});
 	}
 

bundles/org.eclipse.jface.text/src/org/eclipse/jface/text/source/inlined/AbstractInlinedAnnotation.java

@@ -93,6 +93,7 @@ protected AbstractInlinedAnnotation(Position position, ISourceViewer viewer) {
 	protected AbstractInlinedAnnotation(Position position, ISourceViewer viewer, Consumer<MouseEvent> onMouseHover, Consumer<MouseEvent> onMouseOut, Consumer<MouseEvent> onMouseMove) {
 		super(TYPE, false, ""); //$NON-NLS-1$
 		this.position= position;
+		this.fViewer= viewer;
 		this.onMouseHover= onMouseHover;
 		this.onMouseOut= onMouseOut;
 		this.onMouseMove= onMouseMove;
@@ -248,6 +249,9 @@ void setSupport(InlinedAnnotationSupport support) {
 	 *         otherwise.
 	 */
 	protected boolean isInVisibleLines() {
+		if (support == null) {
+			return true; // support not yet available, we have to be optimistic
+		}
 		return support.isInVisibleLines(getPosition().getOffset());
 	}
 
@@ -272,6 +276,9 @@ boolean isFirstVisibleOffset(int widgetOffset, ITextViewer viewer) {
 	 *         otherwise.
 	 */
 	protected boolean isInVisibleLines(int offset) {
+		if (support == null) {
+			return true; // support not yet available, we have to be optimistic
+		}
 		return support.isInVisibleLines(offset);
 	}