implement #12

src/main/java/org/to2mbn/authlibinjector/AuthlibInjector.java

@@ -62,7 +62,7 @@ public final class AuthlibInjector {
 				metadataResponse = asString(getURL(apiRoot));
 			} catch (IOException e) {
 				info("unable to fetch metadata: {0}", e);
-				return empty();
+				throw new UncheckedIOException(e);
 			}
 
 		} else {
@@ -73,7 +73,7 @@ public final class AuthlibInjector {
 				info("unable to decode metadata: {0}\n"
 						+ "metadata to decode:\n"
 						+ "{1}", e, prefetched);
-				return empty();
+				throw e;
 			}
 		}
 
@@ -87,7 +87,7 @@ public final class AuthlibInjector {
 					+ "metadata to parse:\n"
 					+ "{1}",
 					e, metadataResponse);
-			return empty();
+			throw e;
 		}
 		debug("parsed metadata: {0}", configuration);
 		return of(configuration);

src/main/java/org/to2mbn/authlibinjector/javaagent/AuthlibInjectorPremain.java

@@ -16,6 +16,8 @@ public class AuthlibInjectorPremain {
 		} catch (Throwable e) {
 			// prevent the exception being thrown to VM
 			e.printStackTrace();
+			info("an exception has been caught, exiting");
+			System.exit(1);
 		}
 	}