Throw less generic exception

junit-platform-reporting/src/main/java/org/junit/platform/reporting/open/xml/OpenTestReportGeneratingListener.java

@@ -216,7 +216,7 @@ private static Process startProcess(String[] args) {
 			process = Runtime.getRuntime().exec(args);
 		}
 		catch (IOException e) {
-			throw new RuntimeException(e);
+			throw new UncheckedIOException("Failed to start process", e);
 		}
 		return process;
 	}