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8172514: Stop checking for duplicate packages in the JVM_DefineModule() package list

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Use GrowableArray append() instead of append_if_missing() to stop searching for duplicates

Reviewed-by: redestad, coleenp, dholmes, gtriantafill
This commit is contained in:
Harold Seigel 2017-03-10 08:04:17 -05:00
parent ade6d7cd18
commit 8a5f33bd16
3 changed files with 3 additions and 26 deletions
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17
hotspot/src/share/vm/classfile/modules.cpp
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@ -162,8 +162,7 @@ static void define_javabase_module(jobject module, jstring version,
}
// Check that the list of packages has no duplicates and that the
// packages are syntactically ok.
// Check that the packages are syntactically ok.
GrowableArray<Symbol*>* pkg_list = new GrowableArray<Symbol*>(num_packages);
for (int x = 0; x < num_packages; x++) {
const char *package_name = packages[x];
@ -172,12 +171,7 @@ static void define_javabase_module(jobject module, jstring version,
err_msg("Invalid package name: %s for module: " JAVA_BASE_NAME, package_name));
}
Symbol* pkg_symbol = SymbolTable::new_symbol(package_name, CHECK);
// append_if_missing() returns FALSE if entry already exists.
if (!pkg_list->append_if_missing(pkg_symbol)) {
THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
err_msg("Duplicate package name: %s for module " JAVA_BASE_NAME,
package_name));
}
pkg_list->append(pkg_symbol);
}
// Validate java_base's loader is the boot loader.
@ -340,12 +334,7 @@ void Modules::define_module(jobject module, jstring version,
}
Symbol* pkg_symbol = SymbolTable::new_symbol(package_name, CHECK);
// append_if_missing() returns FALSE if entry already exists.
if (!pkg_list->append_if_missing(pkg_symbol)) {
THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
err_msg("Duplicate package name: %s for module %s",
package_name, module_name));
}
pkg_list->append(pkg_symbol);
}
ModuleEntryTable* module_table = get_module_entry_table(h_loader, CHECK);