1 /*
2 * Copyright (c) 2017, 2018, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
40 import java.util.Set;
41 import java.util.StringJoiner;
42 import java.util.WeakHashMap;
43 import java.util.function.Supplier;
44 import java.util.stream.Collectors;
45 import static java.util.Collections.*;
46
47 import jdk.internal.access.JavaLangAccess;
48 import jdk.internal.access.SharedSecrets;
49
50 /**
51 * Supports logging of access to members of exported and concealed packages
52 * that are opened to code in unnamed modules for illegal access.
53 */
54
55 public final class IllegalAccessLogger {
56
57 /**
58 * Logger modes
59 */
60 public static enum Mode {
61 /**
62 * Prints a warning when an illegal access succeeds and then
63 * discards the logger so that there is no further output.
64 */
65 ONESHOT,
66 /**
67 * Print warnings when illegal access succeeds
68 */
69 WARN,
70 /**
71 * Prints warnings and a stack trace when illegal access succeeds
72 */
73 DEBUG,
74 }
75
76 /**
77 * A builder for IllegalAccessLogger objects.
78 */
79 public static class Builder {
80 private final Mode mode;
101 * Adding logging of reflective-access to any member of a type in
102 * otherwise concealed packages.
103 */
104 public Builder logAccessToConcealedPackages(Module m, Set<String> packages) {
105 ensureNotComplete();
106 moduleToConcealedPackages.put(m, unmodifiableSet(packages));
107 return this;
108 }
109
110 /**
111 * Adding logging of reflective-access to non-public members/types in
112 * otherwise exported (not open) packages.
113 */
114 public Builder logAccessToExportedPackages(Module m, Set<String> packages) {
115 ensureNotComplete();
116 moduleToExportedPackages.put(m, unmodifiableSet(packages));
117 return this;
118 }
119
120 /**
121 * Builds the IllegalAccessLogger and sets it as the system-wise logger.
122 */
123 public void complete() {
124 Map<Module, Set<String>> map1 = unmodifiableMap(moduleToConcealedPackages);
125 Map<Module, Set<String>> map2 = unmodifiableMap(moduleToExportedPackages);
126 logger = new IllegalAccessLogger(mode, warningStream, map1, map2);
127 complete = true;
128 }
129 }
130
131 // need access to java.lang.Module
132 private static final JavaLangAccess JLA = SharedSecrets.getJavaLangAccess();
133
134 // system-wide IllegalAccessLogger
135 private static volatile IllegalAccessLogger logger;
136
137 // logger mode
138 private final Mode mode;
139
140 // the print stream to send the warnings
141 private final PrintStream warningStream;
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1 /*
2 * Copyright (c) 2017, 2020, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
40 import java.util.Set;
41 import java.util.StringJoiner;
42 import java.util.WeakHashMap;
43 import java.util.function.Supplier;
44 import java.util.stream.Collectors;
45 import static java.util.Collections.*;
46
47 import jdk.internal.access.JavaLangAccess;
48 import jdk.internal.access.SharedSecrets;
49
50 /**
51 * Supports logging of access to members of exported and concealed packages
52 * that are opened to code in unnamed modules for illegal access.
53 */
54
55 public final class IllegalAccessLogger {
56
57 /**
58 * Logger modes
59 */
60 public enum Mode {
61 /**
62 * Prints a warning when an illegal access succeeds and then
63 * discards the logger so that there is no further output.
64 */
65 ONESHOT,
66 /**
67 * Print warnings when illegal access succeeds
68 */
69 WARN,
70 /**
71 * Prints warnings and a stack trace when illegal access succeeds
72 */
73 DEBUG,
74 }
75
76 /**
77 * A builder for IllegalAccessLogger objects.
78 */
79 public static class Builder {
80 private final Mode mode;
101 * Adding logging of reflective-access to any member of a type in
102 * otherwise concealed packages.
103 */
104 public Builder logAccessToConcealedPackages(Module m, Set<String> packages) {
105 ensureNotComplete();
106 moduleToConcealedPackages.put(m, unmodifiableSet(packages));
107 return this;
108 }
109
110 /**
111 * Adding logging of reflective-access to non-public members/types in
112 * otherwise exported (not open) packages.
113 */
114 public Builder logAccessToExportedPackages(Module m, Set<String> packages) {
115 ensureNotComplete();
116 moduleToExportedPackages.put(m, unmodifiableSet(packages));
117 return this;
118 }
119
120 /**
121 * Builds the IllegalAccessLogger and sets it as the system-wide logger.
122 */
123 public void complete() {
124 Map<Module, Set<String>> map1 = unmodifiableMap(moduleToConcealedPackages);
125 Map<Module, Set<String>> map2 = unmodifiableMap(moduleToExportedPackages);
126 logger = new IllegalAccessLogger(mode, warningStream, map1, map2);
127 complete = true;
128 }
129 }
130
131 // need access to java.lang.Module
132 private static final JavaLangAccess JLA = SharedSecrets.getJavaLangAccess();
133
134 // system-wide IllegalAccessLogger
135 private static volatile IllegalAccessLogger logger;
136
137 // logger mode
138 private final Mode mode;
139
140 // the print stream to send the warnings
141 private final PrintStream warningStream;
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