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SPIGOT-6749: Library Loader does not correctly isolate dependencies

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By: md_5 <git@md-5.net>
This commit is contained in:
Bukkit/Spigot
2021-10-13 08:12:16 +11:00
parent 6882afca7b
commit 5814757cc7
1 changed files with 6 additions and 1 deletions
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7
paper-api/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java
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@@ -101,7 +101,12 @@ final class PluginClassLoader extends URLClassLoader {
Class<?> loadClass0(@NotNull String name, boolean resolve, boolean checkGlobal, boolean checkLibraries) throws ClassNotFoundException {
try {
return super.loadClass(name, resolve);
Class<?> result = super.loadClass(name, resolve);
// SPIGOT-6749: Library classes will appear in the above, but we don't want to return them to other plugins
if (checkGlobal || result.getClassLoader() == this) {
return result;
}
} catch (ClassNotFoundException ex) {
}