src/share/vm/prims/jvm.cpp
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*** old/src/share/vm/prims/jvm.cpp Fri Dec 12 15:33:26 2014
--- new/src/share/vm/prims/jvm.cpp Fri Dec 12 15:33:23 2014
*** 698,724 ****
--- 698,708 ----
JVM_END
// Returns a class loaded by the bootstrap class loader; or null
// if not found. ClassNotFoundException is not thrown.
//
// Rationale behind JVM_FindClassFromBootLoader
// a> JVM_FindClassFromClassLoader was never exported in the export tables.
// b> because of (a) java.dll has a direct dependecy on the unexported
// private symbol "_JVM_FindClassFromClassLoader@20".
// c> the launcher cannot use the private symbol as it dynamically opens
// the entry point, so if something changes, the launcher will fail
// unexpectedly at runtime, it is safest for the launcher to dlopen a
// stable exported interface.
// d> re-exporting JVM_FindClassFromClassLoader as public, will cause its
// signature to change from _JVM_FindClassFromClassLoader@20 to
// JVM_FindClassFromClassLoader and will not be backward compatible
// with older JDKs.
// Thus a public/stable exported entry point is the right solution,
// public here means public in linker semantics, and is exported only
// to the JDK, and is not intended to be a public API.
+ // FindClassFromBootLoader is exported to the launcher for windows.
JVM_ENTRY(jclass, JVM_FindClassFromBootLoader(JNIEnv* env,
const char* name))
JVMWrapper2("JVM_FindClassFromBootLoader %s", name);
// Java libraries should ensure that name is never null...
*** 738,774 ****
--- 722,731 ----
trace_class_resolution(k);
}
return (jclass) JNIHandles::make_local(env, k->java_mirror());
JVM_END
// Not used; JVM_FindClassFromCaller replaces this.
JVM_ENTRY(jclass, JVM_FindClassFromClassLoader(JNIEnv* env, const char* name,
jboolean init, jobject loader,
jboolean throwError))
JVMWrapper3("JVM_FindClassFromClassLoader %s throw %s", name,
throwError ? "error" : "exception");
// Java libraries should ensure that name is never null...
if (name == NULL || (int)strlen(name) > Symbol::max_length()) {
// It's impossible to create this class; the name cannot fit
// into the constant pool.
if (throwError) {
THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name);
} else {
THROW_MSG_0(vmSymbols::java_lang_ClassNotFoundException(), name);
}
}
TempNewSymbol h_name = SymbolTable::new_symbol(name, CHECK_NULL);
Handle h_loader(THREAD, JNIHandles::resolve(loader));
jclass result = find_class_from_class_loader(env, h_name, init, h_loader,
Handle(), throwError, THREAD);
if (TraceClassResolution && result != NULL) {
trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));
}
return result;
JVM_END
// Find a class with this name in this loader, using the caller's protection domain.
JVM_ENTRY(jclass, JVM_FindClassFromCaller(JNIEnv* env, const char* name,
jboolean init, jobject loader,
jclass caller))
JVMWrapper2("JVM_FindClassFromCaller %s throws ClassNotFoundException", name);
src/share/vm/prims/jvm.cpp
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