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https://issues.apache.org/jira/browse/GROOVY-12681?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Scott Murphy Heiberg updated GROOVY-12681:
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Affects Version/s: 5.1.3
(was: 7.0.0-alpha-1)
> withObjectInputStream(ClassLoader) and newObjectInputStream(ClassLoader) do
> not use the given class loader for the interfaces of a serialized Proxy
> ---------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: GROOVY-12681
> URL: https://issues.apache.org/jira/browse/GROOVY-12681
> Project: Groovy
> Issue Type: Bug
> Affects Versions: 4.0.33, 5.0.8, 5.1.3, 6.0.0
> Reporter: Scott Murphy Heiberg
> Priority: Major
>
> {code:groovy}
> import java.lang.reflect.Proxy
> def gcl = new GroovyClassLoader()
> def i = gcl.parseClass('interface Greeter { String greet() }')
> def h = gcl.parseClass('''class H implements
> java.lang.reflect.InvocationHandler, Serializable {
> Object invoke(Object p, java.lang.reflect.Method m, Object[] a) { 'hi' }
> }''')
> def proxy = Proxy.newProxyInstance(gcl, [i] as Class[],
> h.getDeclaredConstructor().newInstance())
> def bytes = new ByteArrayOutputStream()
> bytes.withObjectOutputStream { it.writeObject(proxy) }
> println new
> ByteArrayInputStream(bytes.toByteArray()).withObjectInputStream(gcl) {
> it.readObject().greet() }
> {code}
> *Actual:* {{java.lang.ClassNotFoundException: Greeter}}. A plain instance of
> {{H}} reads back fine through the same loader.
> *Expected:* prints {{hi}}; the proxy's interfaces resolve through the given
> class loader, like every other class in the stream.
> The stream returned by {{IOGroovyMethods.newObjectInputStream(InputStream,
> ClassLoader)}} overrides {{resolveClass}} but not {{resolveProxyClass}}. The
> JDK default resolves proxy interfaces through the latest user-defined loader
> on the call stack, which here is the script's loader. All class-loader
> variants on InputStream, File and Path go through this method. Related:
> GROOVY-12676.
> Verified on 4.0.33, 5.0.8, 6.0.0 and master.
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