1 /*
2 * Copyright (c) 2005, 2024, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
165
166 #ifndef PRODUCT
167 if (VerifySecondarySupers) {
168 bool linear_result = linear_search_secondary_supers(k);
169 if (linear_result != result) {
170 on_secondary_supers_verification_failure((Klass*)this, k, linear_result, result, "mismatch");
171 }
172 }
173 #endif // PRODUCT
174
175 return result;
176 }
177
178 // Returns true if this Klass needs to be addressable via narrow Klass ID.
179 inline bool Klass::needs_narrow_id() const {
180 // Classes that are never instantiated need no narrow Klass Id, since the
181 // only point of having a narrow id is to put it into an object header. Keeping
182 // never instantiated classes out of class space lessens the class space pressure.
183 // For more details, see JDK-8338526.
184 // Note: don't call this function before access flags are initialized.
185 return !is_abstract() && !is_interface();
186 }
187 #endif // SHARE_OOPS_KLASS_INLINE_HPP
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1 /*
2 * Copyright (c) 2005, 2025, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
165
166 #ifndef PRODUCT
167 if (VerifySecondarySupers) {
168 bool linear_result = linear_search_secondary_supers(k);
169 if (linear_result != result) {
170 on_secondary_supers_verification_failure((Klass*)this, k, linear_result, result, "mismatch");
171 }
172 }
173 #endif // PRODUCT
174
175 return result;
176 }
177
178 // Returns true if this Klass needs to be addressable via narrow Klass ID.
179 inline bool Klass::needs_narrow_id() const {
180 // Classes that are never instantiated need no narrow Klass Id, since the
181 // only point of having a narrow id is to put it into an object header. Keeping
182 // never instantiated classes out of class space lessens the class space pressure.
183 // For more details, see JDK-8338526.
184 // Note: don't call this function before access flags are initialized.
185 return UseClassMetaspaceForAllClasses || (!is_abstract() && !is_interface());
186 }
187 #endif // SHARE_OOPS_KLASS_INLINE_HPP
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