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Error: Diamond Operator Is Not Supported In -Source 1.6..l2Network Addapt


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Posted

hello to all members.

I am trying to addapt l2network in my vote system so i update my AutoVoteRewardHandler.java rev 1000
from here https://www.assembla.com/spaces/L2jFrozenInterlude/subversion/commits/1112
from 1000 rev to 1112 rev and add diffs to other 2 files in java i get this weird message

[echo] L2jFrozen Gameserver Revision: exported
compile:
    [javac] Compiling 1476 source files to C:\workspace\trunk\gameserver\build\classes
    [javac] warning: [options] bootstrap class path not set in conjunction with -source 1.6
    [javac] C:\workspace\trunk\gameserver\head-src\com\l2jfrozen\gameserver\handler\AutoVoteRewardHandler.java:112:
    error: diamond operator is not supported in -source 1.6
    [javac]                         _already_rewarded = new ArrayList<>();
    [javac]                                                           ^
    [javac]   (use -source 7 or higher to enable diamond operator)
    [javac] 1 error
    [javac] 1 warning

BUILD FAILED

 

Anyone can help???ty in advance...

4 answers to this question

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  • 0
Posted

You force L2JFrozen to use 1.6, therefore you can't use new ArrayList<>(), you have to add the type of ArrayList into <>.

 

You can also edit -source 1.6 for -source 7 and use java 7. The best being using directly java 8.

  • 0
Posted

You force L2JFrozen to use 1.6, therefore you can't use new ArrayList<>(), you have to add the type of ArrayList into <>.

 

You can also edit -source 1.6 for -source 7 and use java 7. The best being using directly java 8.

Tryskell ty for respont and you help,i made a little research about uptade the compiler and i found this guide can you or someone verify that is the right one?cuz am new in java enviroment and i dont want to make blind moves

here is the link  http://blog.ajduke.in/2013/04/28/setting-up-new-java-compiler-and-runtime-in-eclipse-ide/

ty in advance!!! ps if the guide is right i quess it will help and other people!!!

  • 0
Posted (edited)

Tryskell ty for respont and you help,i made a little research about uptade the compiler and i found this guide can you or someone verify that is the right one?cuz am new in java enviroment and i dont want to make blind moves

here is the link  http://blog.ajduke.in/2013/04/28/setting-up-new-java-compiler-and-runtime-in-eclipse-ide/

ty in advance!!! ps if the guide is right i quess it will help and other people!!!

Well, typically you would start by removing obsolete java installations. Java 6 and under is now deemed as critical security risk in both Oracle (incl. Open) and IBM JVMs (which together take up more than 90% of all JVM installations). If you have any project that uses java 6 or earlier, you should face the facts: it's not just dead. It's buried so deep down below, it would take a expert miner crew to recover anything useful out of it.

 

With that out of the way, eclipse can run itself on a JRE, so you can technically skip path and other env. setup and use the same old Window->Preferences->Java->Installed JREs method. As long as you know how to get to that dialog, everything else is self-explanatory. As it always was.

 

EDIT: Try has already specified the minimal Java version you will need. Just don't use Oracle/Open Java 7 JVM, it's a critical security risk. So if you want to stick with Oracle, you must go straight to Java 8. Which is a good choice in any case.

Edited by _dev_
  • 0
Posted

well i cannnot update cuz i cannot modify the build path, something wrong in .properties i quess, there is no "change build path" option.. and the compiler is 1.7 in my eclipse as in the guide as i see during the uptade try,,am in the middle of java ocean :( how i can edit the   ArrayList into <>.  somene give some details if can ...ty again

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