1.1 --- a/src/share/vm/prims/jvm.cpp Wed Aug 06 11:57:31 2008 -0400
1.2 +++ b/src/share/vm/prims/jvm.cpp Thu Aug 21 23:36:31 2008 -0400
1.3 @@ -1,5 +1,5 @@
1.4 /*
1.5 - * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
1.6 + * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
1.7 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.8 *
1.9 * This code is free software; you can redistribute it and/or modify it
1.10 @@ -628,6 +628,30 @@
1.11 if (PrintJVMWarnings) warning("JVM_ResolveClass not implemented");
1.12 JVM_END
1.13
1.14 +// Rationale behind JVM_FindClassFromBootLoader
1.15 +// a> JVM_FindClassFromClassLoader was never exported in the export tables.
1.16 +// b> because of (a) java.dll has a direct dependecy on the unexported
1.17 +// private symbol "_JVM_FindClassFromClassLoader@20".
1.18 +// c> the launcher cannot use the private symbol as it dynamically opens
1.19 +// the entry point, so if something changes, the launcher will fail
1.20 +// unexpectedly at runtime, it is safest for the launcher to dlopen a
1.21 +// stable exported interface.
1.22 +// d> re-exporting JVM_FindClassFromClassLoader as public, will cause its
1.23 +// signature to change from _JVM_FindClassFromClassLoader@20 to
1.24 +// JVM_FindClassFromClassLoader and will not be backward compatible
1.25 +// with older JDKs.
1.26 +// Thus a public/stable exported entry point is the right solution,
1.27 +// public here means public in linker semantics, and is exported only
1.28 +// to the JDK, and is not intended to be a public API.
1.29 +
1.30 +JVM_ENTRY(jclass, JVM_FindClassFromBootLoader(JNIEnv* env,
1.31 + const char* name,
1.32 + jboolean throwError))
1.33 + JVMWrapper3("JVM_FindClassFromBootLoader %s throw %s", name,
1.34 + throwError ? "error" : "exception");
1.35 + return JVM_FindClassFromClassLoader(env, name, JNI_FALSE,
1.36 + (jobject)NULL, throwError);
1.37 +JVM_END
1.38
1.39 JVM_ENTRY(jclass, JVM_FindClassFromClassLoader(JNIEnv* env, const char* name,
1.40 jboolean init, jobject loader,
