Anyone know error reason?

 

Exception in thread "main" java.lang.NoSuchMethodError: java.nio.ByteBuffer.clear()Ljava/nio/ByteBuffer;
        at net.sf.l2j.gameserver.geoengine.geodata.BlockMultilayer.<init>(BlockMultilayer.java:89)
        at net.sf.l2j.gameserver.geoengine.GeoEngine.loadGeoBlocks(GeoEngine.java:279)
        at net.sf.l2j.gameserver.geoengine.GeoEngine.<init>(GeoEngine.java:92)
        at net.sf.l2j.gameserver.geoengine.GeoEngine$SingletonHolder.<clinit>(GeoEngine.java:1521)
        at net.sf.l2j.gameserver.geoengine.GeoEngine.getInstance(GeoEngine.java:1516)
        at net.sf.l2j.gameserver.GameServer.<init>(GameServer.java:215)
        at net.sf.l2j.gameserver.GameServer.main(GameServer.java:127)

 

Thank you for helping. 

47 minutes ago, bras1las said:

Anyone know error reason?

 

Exception in thread "main" java.lang.NoSuchMethodError: java.nio.ByteBuffer.clear()Ljava/nio/ByteBuffer;
        at net.sf.l2j.gameserver.geoengine.geodata.BlockMultilayer.<init>(BlockMultilayer.java:89)
        at net.sf.l2j.gameserver.geoengine.GeoEngine.loadGeoBlocks(GeoEngine.java:279)
        at net.sf.l2j.gameserver.geoengine.GeoEngine.<init>(GeoEngine.java:92)
        at net.sf.l2j.gameserver.geoengine.GeoEngine$SingletonHolder.<clinit>(GeoEngine.java:1521)
        at net.sf.l2j.gameserver.geoengine.GeoEngine.getInstance(GeoEngine.java:1516)
        at net.sf.l2j.gameserver.GameServer.<init>(GameServer.java:215)
        at net.sf.l2j.gameserver.GameServer.main(GameServer.java:127)

 

Thank you for helping. 

Java 9 introduces overridden methods with covariant return types for the following methods in java.nio.ByteBuffer that are used by the driver:

• position
• limit
• flip
• clear

In Java 9 they all now return ByteBuffer, whereas the methods they override return Buffer,
resulting in exceptions like this when executing on Java 8 and lower:

java.lang.NoSuchMethodError: java.nio.ByteBuffer.limit(I)Ljava/nio/ByteBuffer

This is because the generated byte code includes the static return type of the method, which is not found on Java 8 and lower because the overloaded methods with covariant return types don't exist.

The solution is to cast ByteBuffer instances to Buffer before calling the method.

https://jira.mongodb.org/browse/JAVA-2559

Edited January 13, 20206 yr by Reynald0

1. What the aCis revision you are uses?
2. What the JDK you are used for package compilation?
3. What the Java version you uses for server run?

8 java like before. And the same pack as i was using before windows reinstall. :D

So...?

up up up

Help! :D