I got a problem with building my Mod.

 

 

 

warning: [options] bootstrap class path not set in conjunction with -source 1.6

***********\1.7.10\build\sources\java\crystalrevolut

ion\gameobjs\ItemSorter.java:11: error: diamond operator is not supported in -so

urce 1.6

        private Map<ItemStack, OreDictionaryPriority> oreDictPriorityCache = new

HashMap<>();

 

        ^

  (use -source 7 or higher to enable diamond operator)

 

 

 

the itemsorter class:

 

 

public class ItemSorter implements Comparator<ItemStack> {

private Map<ItemStack, OreDictionaryPriority> oreDictPriorityCache = new HashMap<>();

 

private OreDictionaryPriority getOreDictionaryPriority(ItemStack itemStack) {

OreDictionaryPriority priority = oreDictPriorityCache.get(itemStack);

if (priority != null) {

return priority;

}

 

priority = OreDictionaryPriority.NONE;

 

for (int oreID : OreDictionary.getOreIDs(itemStack)) {

String oreName = OreDictionary.getOreName(oreID);

 

if (oreName.startsWith("ore")) {

priority = OreDictionaryPriority.ORE;

break;

} else if (oreName.startsWith("ingot")) {

priority = OreDictionaryPriority.INGOT;

break;

} else if (oreName.startsWith("mana")) {

priority = OreDictionaryPriority.MANA;

break;

} else if (oreName.startsWith("magic")) {

priority = OreDictionaryPriority.MAGIC;

break;

} else if (oreName.startsWith("dust")) {

priority = OreDictionaryPriority.DUST;

break;

} else if (oreName.startsWith("gem")) {

priority = OreDictionaryPriority.GEM;

break;

} else if (oreName.startsWith("gear")) {

priority = OreDictionaryPriority.GEAR;

break;

}

}

 

oreDictPriorityCache.put(itemStack, priority);

 

return priority;

}

 

@Override

public int compare(ItemStack stack1, ItemStack stack2) {

OreDictionaryPriority priority1 = getOreDictionaryPriority(stack1), priority2 = getOreDictionaryPriority(stack2);

 

if (priority1 == priority2) { // Both stacks have the same priority, order them by their display names

String displayName1 = stack1.getDisplayName();

String displayName2 = stack2.getDisplayName();

 

return displayName1.compareToIgnoreCase(displayName2);

} else { // Stacks have different priorities, order them by priority instead

return priority1.compareTo(priority2);

}

}

 

public enum OreDictionaryPriority {

ORE,

INGOT,

DUST,

GEM,

GEAR,

MANA,

MAGIC,

NONE

 

}

}

 

 

You are compiling Java 7 code for Java 6.

 

Java 6 does not support the diamond operator HashMap<>

 

http://www.javaworld.com/article/2074080/core-java/jdk-7--the-diamond-operator.html

 

Either write the operator out long hand (see the link) or compile for Java 7....

 

-TGG

I knew there was something with Java 6 there, but I didn't catch the diamond operator usage.

OTOH, a google search turned up someone completely unrelated that simplified my own work.

(I use long-hand, rather than the diamond operator, as I do a lot of cross-language work and AS3 doesn't have it).

How can i compile my mod for Java 7 ? The only java i have installed is Java 7. http://puu.sh/gP0Jl/f2c13c4f13.png

Put this:

compileJava {
sourceCompatibility = 1.7
targetCompatibility = 1.7
}

...in build.gradle

 

P.s - you might also want to change Java in IDE, idk.