[SOLVED] Can't run compiled JAR Java.nullpointerException [jMonkeyEngine SDK 3.1, JDK 8]

pspeed · February 10, 2019, 8:41am

This code is not helpful because it’s not where the problem is.

How are you building your application? SDK? Something else?

Where did you get your JME jars? Build them yourself? Download them from somewhere weird?

Does the basic game template run for you?

We need about 3465913746597346594365982456 more pieces of information than you’ve provided.

Edit: also, what version of Java are you trying to use?

Edit 2: basically, for some reason the JME jars in your dist folder are missing their versions.properties. This is where the exception happens:

github.com

jMonkeyEngine/jmonkeyengine/blob/master/jme3-core/src/main/java/com/jme3/system/JmeVersion.java#L51


* 
* @author Kirill Vainer
*/
public class JmeVersion {
   
   private static final Logger logger = Logger.getLogger(JmeVersion.class.getName());
   private static final Properties props = new Properties();
   
   static {
       try {
           props.load(JmeVersion.class.getResourceAsStream("version.properties"));
       } catch (IOException | NullPointerException ex) {
           logger.log(Level.WARNING, "Unable to read version info!", ex);
       }
   }
   
   public static final String BUILD_DATE       = props.getProperty("build.date", "1900-01-01");
   public static final String BRANCH_NAME      = props.getProperty("git.branch", "unknown");
   public static final String GIT_HASH         = props.getProperty("git.hash", "");
   public static final String GIT_SHORT_HASH   = props.getProperty("git.hash.short", "");
   public static final String GIT_TAG          = props.getProperty("git.tag", "");