Mercurial > hg > truffle
view test/runtime/6626217/many_loader1.java.foo @ 3293:1f4413413144
7039089: G1: changeset for 7037276 broke heap verification, and related cleanups
Summary: In G1 heap verification, we no longer scan perm to G1-collected heap refs as part of process_strong_roots() but rather in a separate explicit oop iteration over the perm gen. This preserves the original perm card-marks. Added a new assertion in younger_refs_iterate() to catch a simple subcase where the user may have forgotten a prior save_marks() call, as happened in the case of G1's attempt to iterate perm to G1 refs when verifying the heap before exit. The assert was deliberately weakened for ParNew+CMS and will be fixed for that combination in a future CR. Also made some (non-G1) cleanups related to code and comments obsoleted by the migration of Symbols to the native heap.
Reviewed-by: iveresov, jmasa, tonyp
author | ysr |
---|---|
date | Tue, 26 Apr 2011 21:17:24 -0700 |
parents | 495caa35b1b5 |
children |
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// A simple class to extend an abstract class and get loaded with different // loaders. This class is loaded via LOADER1. A similar named class will // be loaded via LOADER2. public class many_loader extends bug_21227 { public You_Have_Been_P0wned _p0wnee; // I need to compile (hence call in a loop) a function which returns a value // loaded from classloader other than the system one. The point of this // call is to give me an abstract 'hook' into a function loaded with a // foreign loader. // The original 'make(boolean)' returns a bug_21227. The VM will inject a // synthetic method to up-cast the returned 'from_loader1' into a // 'bug_21227'. public many_loader[] make( IFace iface ) { // This function needs to return a value known to be loaded from LOADER2. // Since I need to use a yet different loader, I need to make an unknown // foreign call. In this case I'll be using an interface to make the // unknown call, with but a single implementor so the compiler can do the // upcast statically. return iface==null ? null : iface.gen(); } }