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[Help] Error or ?


Bobi
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any can help me to fix this problem ?

its happen when event need send announcement with top 3 killers

 

java.lang.NullPointerException
at javolution.util.FastMap.remove(Unknown Source)
at com.l2jarchid.gameserver.event.DM.selectTop(DM.java:118)
at com.l2jarchid.gameserver.event.DM.access$200(DM.java:27)
at com.l2jarchid.gameserver.event.DM$Core.run(DM.java:58)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:206)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)

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since we dont have any code to work with i can only tell you to:

 

at com.l2jarchid.gameserver.event.DM.selectTop(DM.java:118)

before remove to make a check if (whatIWantToRemove != null)

 

btw you are not trying to remove from a map inside a foreach loop, are you? if thats the problem use iterator.remove

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and what should do there the system?

 

109 		                for(int i = 0; i < 3; i++) 
110	 		                { 
111	 		                        L2PcInstance max; 
112	 		                        max = temp.head().getNext().getKey(); 
113	 		                        for (L2PcInstance player : temp.keySet()) 
114	 		                                if (temp.get(player)[2] > temp.get(max)[2]) 
115	 		                                        max = player; 
116	 		                         
117	 		                        top[i] = max; 
118	 		                        temp.remove(max); 
119	 		                         
120	 		                } 
121	 		                 
122	 		                 
123	 		        } 
124	 		         

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it would appear temp is a Map. It comes to this statement and tries to delete a record from it. However temp has not been initialized so it's equal to null. You need to make sure temp has been created using Map temp = new FastMap<key,value>();

 

Made a quick example:

Map<Integer,String> amap = new HashMap<Integer,String>();
Integer number1 = 1;
Integer number2 = null;
String astring = "Test";
amap.put(number1, astring);
amap.remove(number2);
System.out.println("Done!");

This works ok! number2 (max in your program) can be null and still passed to remove. However, if you don't initalize the Map:

Map<Integer,String> amap = null;
Integer number1 = 1;
Integer number2 = null;
String astring = "Test";
amap.put(number1, astring);
amap.remove(number2);
System.out.println("Done!");

You're gonna get a null pointer exception.

 

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