34 lines
1.0 KiB
Java
34 lines
1.0 KiB
Java
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package net.seanomik.tamablefoxes.versions;
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import java.lang.invoke.MethodHandles;
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import java.lang.invoke.VarHandle;
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import java.lang.reflect.Field;
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import java.lang.reflect.Modifier;
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public final class FieldHelper {
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private static final VarHandle MODIFIERS;
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static {
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try {
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MethodHandles.Lookup lookup = MethodHandles.privateLookupIn(Field.class, MethodHandles.lookup());
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MODIFIERS = lookup.findVarHandle(Field.class, "modifiers", int.class);
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} catch (IllegalAccessException | NoSuchFieldException ex) {
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throw new RuntimeException(ex);
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}
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}
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public static void makeNonFinal(Field field) {
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int mods = field.getModifiers();
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if (Modifier.isFinal(mods)) {
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MODIFIERS.set(field, mods & ~Modifier.FINAL);
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}
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}
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public static void setField(Field field, Object obj, Object value) throws IllegalAccessException {
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makeNonFinal(field);
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field.setAccessible(true);
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field.set(obj, value);
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field.setAccessible(false);
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}
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}
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