only call System.exit if the return code is not zero, quickfix for #1795

src/core/lombok/core/Main.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009-2012 The Project Lombok Authors.
+ * Copyright (C) 2009-2018 The Project Lombok Authors.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -41,7 +41,9 @@ public class Main {
 		Thread.currentThread().setContextClassLoader(Main.class.getClassLoader());
 		int err = new Main(SpiLoadUtil.readAllFromIterator(
 				SpiLoadUtil.findServices(LombokApp.class)), Arrays.asList(args)).go();
-		System.exit(err);
+		if (err != 0) {
+			System.exit(err);
+		}
 	}
 	
 	@ProviderFor(LombokApp.class)
@@ -143,7 +145,7 @@ public class Main {
 			out.println("------------------------------");
 		}
 		out.println("projectlombok.org " + Version.getFullVersion());
-		out.println("Copyright (C) 2009-2015 The Project Lombok Authors.");
+		out.println("Copyright (C) 2009-2018 The Project Lombok Authors.");
 		out.println("Run 'lombok license' to see the lombok license agreement.");
 		out.println();
 		out.println("Run lombok without any parameters to start the graphical installer.");