fix: NPE during click into empty workspace, not existent directory

haas-spim-benchmark/src/main/java/cz/it4i/fiji/haas_spim_benchmark/commands/ManageSPIMBenchmark.java

@@ -4,6 +4,7 @@ import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
 import java.io.File;
 import java.io.IOException;
+import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 
@@ -61,7 +62,9 @@ public class ManageSPIMBenchmark implements Command {
 	public void run() {
 		try {
 			Path workingDirPath = Paths.get(workingDirectory.getPath());
-			
+			if (!Files.isDirectory(workingDirPath)) {
+				Files.createDirectories(workingDirPath);
+			}
 			FileLock fl = new FileLock(workingDirPath.resolve(LOCK_FILE_NAME));
 			if(!fl.tryLock()) {
 				uiService.showDialog("Working directory is already used by someone else", MessageType.ERROR_MESSAGE);

haas-spim-benchmark/src/main/java/cz/it4i/fiji/haas_spim_benchmark/ui/BenchmarkSPIMControl.java

@@ -143,7 +143,7 @@ public class BenchmarkSPIMControl extends BorderPane implements CloseableControl
 				job -> JavaFXRoutines.notNullValue(job,
 						j -> !j.isUseDemoData()
 								&& !EnumSet.of(JobState.Running, JobState.Disposed).contains(j.getState())),
-				job -> job.getUploadProgress().isWorking());
+				job -> job != null && job.getUploadProgress().isWorking());
 		menu.addItem("Download result",
 				job -> executeWSCallAsync("Downloading data", p -> job.getValue().startDownload()),
 				job -> executeWSCallAsync("Stop downloading data", p -> job.getValue().stopDownload()),
@@ -151,7 +151,7 @@ public class BenchmarkSPIMControl extends BorderPane implements CloseableControl
 						.notNullValue(job,
 								j -> EnumSet.of(JobState.Failed, JobState.Finished, JobState.Canceled)
 										.contains(j.getState()) && j.canBeDownloaded()),
-				job -> job.getDownloadProgress().isWorking());
+				job -> job != null && job.getDownloadProgress().isWorking());
 
 		menu.addItem("Download statistics",
 				job -> executeWSCallAsync("Downloading data", p -> job.getValue().downloadStatistics(p)),