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Fix class not found exception on versions < 1.13

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This commit is contained in:
Dan Mulloy 2018-07-22 00:49:03 -04:00
parent 778031c105
commit e827a3dd1f
3 changed files with 46 additions and 29 deletions
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6
modules/API/src/main/java/com/comphenix/protocol/reflect/cloning/ImmutableDetector.java
View File

@ -96,9 +96,9 @@ public class ImmutableDetector implements Cloner {
}
}
if (MinecraftReflection.getBlockClass().isAssignableFrom(type)
|| MinecraftReflection.getMinecraftClass("Item").isAssignableFrom(type)
|| MinecraftReflection.getMinecraftClass("FluidType").isAssignableFrom(type)) {
if (MinecraftReflection.is(MinecraftReflection.getBlockClass(), type)
|| MinecraftReflection.is(MinecraftReflection.getItemClass(), type)
|| MinecraftReflection.is(MinecraftReflection.getFluidTypeClass(), type)) {
return true;
}

35
modules/API/src/main/java/com/comphenix/protocol/utility/CachedPackage.java
View File

@ -17,8 +17,8 @@
package com.comphenix.protocol.utility;
import java.util.Map;
import java.util.Optional;
import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import com.google.common.base.Strings;
import com.google.common.collect.Maps;
@ -51,7 +51,7 @@ class CachedPackage {
*/
public void setPackageClass(String className, Class<?> clazz) {
if (clazz != null) {
cache.put(className, Optional.<Class<?>> of(clazz));
cache.put(className, Optional.of(clazz));
} else {
cache.remove(className);
}
@ -63,32 +63,21 @@ class CachedPackage {
* @return Class object.
* @throws RuntimeException If we are unable to find the given class.
*/
public Class<?> getPackageClass(String className) {
public Optional<Class<?>> getPackageClass(String className) {
Preconditions.checkNotNull(className, "className cannot be null!");
// See if we've already looked it up
if (cache.containsKey(className)) {
Optional<Class<?>> result = cache.get(className);
if (!result.isPresent()) {
throw new RuntimeException("Cannot find class " + className);
Optional<Class<?>> result = cache.get(className);
if (result == null) {
try {
Class<?> clazz = source.loadClass(combine(packageName, className));
result = Optional.ofNullable(clazz);
cache.put(className, result);
} catch (ClassNotFoundException ex) {
cache.put(className, Optional.empty());
}
return result.get();
}
try {
// Try looking it up
Class<?> clazz = source.loadClass(combine(packageName, className));
if (clazz == null) {
throw new IllegalArgumentException("Source " + source + " returned null for " + className);
}
cache.put(className, Optional.<Class<?>> of(clazz));
return clazz;
} catch (ClassNotFoundException ex) {
cache.put(className, Optional.<Class<?>> absent());
throw new RuntimeException("Cannot find class " + className, ex);
}
return result;
}
/**

34
modules/API/src/main/java/com/comphenix/protocol/utility/MinecraftReflection.java
View File

@ -428,6 +428,17 @@ public class MinecraftReflection {
return clazz.isAssignableFrom(object.getClass());
}
/**
* Equivalent to {@link #is(Class, Object)} but we don't call getClass again
*/
public static boolean is(Class<?> clazz, Class<?> test) {
if (clazz == null || test == null) {
return false;
}
return clazz.isAssignableFrom(test);
}
/**
* Determine if a given object is a ChunkPosition.
* @param obj - the object to test.
@ -1137,6 +1148,14 @@ public class MinecraftReflection {
}
}
public static Class<?> getItemClass() {
return getNullableNMS("Item");
}
public static Class<?> getFluidTypeClass() {
return getNullableNMS("FluidType");
}
/**
* Retrieve the WorldType class.
* @return The WorldType class.
@ -1985,7 +2004,8 @@ public class MinecraftReflection {
public static Class<?> getCraftBukkitClass(String className) {
if (craftbukkitPackage == null)
craftbukkitPackage = new CachedPackage(getCraftBukkitPackage(), getClassSource());
return craftbukkitPackage.getPackageClass(className);
return craftbukkitPackage.getPackageClass(className)
.orElseThrow(() -> new RuntimeException("Failed to find CraftBukkit class: " + className));
}
/**
@ -1997,7 +2017,14 @@ public class MinecraftReflection {
public static Class<?> getMinecraftClass(String className) {
if (minecraftPackage == null)
minecraftPackage = new CachedPackage(getMinecraftPackage(), getClassSource());
return minecraftPackage.getPackageClass(className);
return minecraftPackage.getPackageClass(className)
.orElseThrow(() -> new RuntimeException("Failed to find NMS class: " + className));
}
private static Class<?> getNullableNMS(String className) {
if (minecraftPackage == null)
minecraftPackage = new CachedPackage(getMinecraftPackage(), getClassSource());
return minecraftPackage.getPackageClass(className).orElse(null);
}
/**
@ -2083,7 +2110,8 @@ public class MinecraftReflection {
public static Class<?> getMinecraftLibraryClass(String className) {
if (libraryPackage == null)
libraryPackage = new CachedPackage("", getClassSource());
return libraryPackage.getPackageClass(className);
return libraryPackage.getPackageClass(className)
.orElseThrow(() -> new RuntimeException("Failed to find class: " + className));
}
/**