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Fix PotionData NPE #6757

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merged 3 commits into from
Jun 6, 2024
Merged

Fix PotionData NPE #6757

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8e35bde
Rework PotionData Usage
APickledWalrus Jun 3, 2024
6c82129
Remove MethodHandle usage for AEC values
APickledWalrus Jun 3, 2024
50397d3
Merge branch 'dev/patch' into patch/missing-potion-data-npe
Moderocky Jun 3, 2024
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35 changes: 11 additions & 24 deletions src/main/java/ch/njol/skript/util/PotionEffectUtils.java
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Original file line number Diff line number Diff line change
Expand Up @@ -346,20 +346,7 @@ else if (HAS_SUSPICIOUS_META && meta instanceof SuspiciousStewMeta)
itemType.setItemMeta(meta);
}

@Nullable
private static final MethodHandle BASE_POTION_DATA_HANDLE;

static {
MethodHandle basePotionDataHandle = null;
if (Skript.methodExists(PotionMeta.class, "getBasePotionData")) {
try {
basePotionDataHandle = MethodHandles.lookup().findVirtual(PotionMeta.class, "getBasePotionData", MethodType.methodType(PotionData.class));
} catch (NoSuchMethodException | IllegalAccessException e) {
Skript.exception(e, "Failed to load legacy potion data support. Potions may not work as expected.");
}
}
BASE_POTION_DATA_HANDLE = basePotionDataHandle;
}
private static final boolean HAS_POTION_TYPE = Skript.methodExists(PotionMeta.class, "getBasePotionType");

/**
* Get all the PotionEffects of an ItemType
Expand All @@ -375,20 +362,20 @@ public static List<PotionEffect> getEffects(ItemType itemType) {
if (meta instanceof PotionMeta) {
PotionMeta potionMeta = ((PotionMeta) meta);
effects.addAll(potionMeta.getCustomEffects());
if (BASE_POTION_DATA_HANDLE != null) {
try {
effects.addAll(PotionDataUtils.getPotionEffects((PotionData) BASE_POTION_DATA_HANDLE.invoke(meta)));
} catch (Throwable e) {
throw Skript.exception(e, "An error occurred while trying to invoke legacy potion data support.");
if (HAS_POTION_TYPE) {
if (potionMeta.hasBasePotionType()) {
//noinspection ConstantConditions - checked via hasBasePotionType
effects.addAll(potionMeta.getBasePotionType().getPotionEffects());
}
} else { // use deprecated method
PotionData data = potionMeta.getBasePotionData();
if (data != null) {
effects.addAll(PotionDataUtils.getPotionEffects(data));
}
} else if (potionMeta.hasBasePotionType()) {
//noinspection ConstantConditions - checked via hasBasePotionType
effects.addAll(potionMeta.getBasePotionType().getPotionEffects());
}

} else if (HAS_SUSPICIOUS_META && meta instanceof SuspiciousStewMeta)
effects.addAll(((SuspiciousStewMeta) meta).getCustomEffects());
return effects;
}

}
3 changes: 3 additions & 0 deletions src/test/skript/tests/regressions/6756-potion missing base type causes npe.sk
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@@ -0,0 +1,3 @@
test "potion missing base type":

assert potion effects of (plain potion of mundane) is not set with "it should not have any effects"
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