22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package jdk.internal.loader;
26
27 import java.io.IOException;
28 import java.io.InputStream;
29 import java.lang.module.ModuleReference;
30 import java.lang.reflect.Layer;
31 import java.lang.reflect.Module;
32 import java.net.MalformedURLException;
33 import java.net.URL;
34 import java.nio.file.Files;
35 import java.nio.file.Path;
36 import java.nio.file.Paths;
37 import java.security.AccessController;
38 import java.security.PrivilegedAction;
39 import java.util.Arrays;
40 import java.util.Enumeration;
41 import java.util.Optional;
42 import java.util.jar.JarInputStream;
43 import java.util.jar.Manifest;
44 import java.util.stream.Stream;
45
46 import jdk.internal.misc.JavaLangAccess;
47 import jdk.internal.misc.SharedSecrets;
48 import jdk.internal.module.ServicesCatalog;
49
50 /**
51 * Find resources and packages in modules defined to the boot class loader or
52 * resources and packages on the "boot class path" specified via -Xbootclasspath/a.
53 */
54
55 public class BootLoader {
56 private BootLoader() { }
57
58 // The unnamed module for the boot loader
59 private static final Module UNNAMED_MODULE;
60 private static final String JAVA_HOME = System.getProperty("java.home");
61
62 static {
63 UNNAMED_MODULE
64 = SharedSecrets.getJavaLangReflectModuleAccess().defineUnnamedModule(null);
65 setBootLoaderUnnamedModule0(UNNAMED_MODULE);
66 }
67
68 // ServiceCatalog for the boot class loader
69 private static final ServicesCatalog SERVICES_CATALOG = new ServicesCatalog();
70
71 /**
72 * Returns the unnamed module for the boot loader.
73 */
74 public static Module getUnnamedModule() {
75 return UNNAMED_MODULE;
76 }
77
78 /**
79 * Returns the ServiceCatalog for modules defined to the boot class loader.
80 */
81 public static ServicesCatalog getServicesCatalog() {
82 return SERVICES_CATALOG;
83 }
84
85 /**
86 * Register a module with this class loader so that its classes (and
87 * resources) become visible via this class loader.
88 */
89 public static void loadModule(ModuleReference mref) {
90 ClassLoaders.bootLoader().loadModule(mref);
91 }
92
93 /**
94 * Loads the Class object with the given name defined to the boot loader.
95 */
96 public static Class<?> loadClassOrNull(String name) {
97 return ClassLoaders.bootLoader().loadClassOrNull(name);
98 }
99
100 /**
101 * Returns a URL to a resource in a named module defined to the boot loader.
102 */
|
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package jdk.internal.loader;
26
27 import java.io.IOException;
28 import java.io.InputStream;
29 import java.lang.module.ModuleReference;
30 import java.lang.reflect.Layer;
31 import java.lang.reflect.Module;
32 import java.net.MalformedURLException;
33 import java.net.URL;
34 import java.nio.file.Files;
35 import java.nio.file.Path;
36 import java.nio.file.Paths;
37 import java.security.AccessController;
38 import java.security.PrivilegedAction;
39 import java.util.Arrays;
40 import java.util.Enumeration;
41 import java.util.Optional;
42 import java.util.concurrent.ConcurrentHashMap;
43 import java.util.jar.JarInputStream;
44 import java.util.jar.Manifest;
45 import java.util.stream.Stream;
46
47 import jdk.internal.misc.JavaLangAccess;
48 import jdk.internal.misc.SharedSecrets;
49 import jdk.internal.module.ServicesCatalog;
50
51 /**
52 * Find resources and packages in modules defined to the boot class loader or
53 * resources and packages on the "boot class path" specified via -Xbootclasspath/a.
54 */
55
56 public class BootLoader {
57 private BootLoader() { }
58
59 // The unnamed module for the boot loader
60 private static final Module UNNAMED_MODULE;
61 private static final String JAVA_HOME = System.getProperty("java.home");
62
63 static {
64 UNNAMED_MODULE
65 = SharedSecrets.getJavaLangReflectModuleAccess().defineUnnamedModule(null);
66 setBootLoaderUnnamedModule0(UNNAMED_MODULE);
67 }
68
69 // ServiceCatalog for the boot class loader
70 private static final ServicesCatalog SERVICES_CATALOG = new ServicesCatalog();
71
72 // ClassLoaderValue map for boot class loader
73 private static final ConcurrentHashMap<?, ?> CLASS_LOADER_VALUE_MAP =
74 new ConcurrentHashMap<>();
75
76 /**
77 * Returns the unnamed module for the boot loader.
78 */
79 public static Module getUnnamedModule() {
80 return UNNAMED_MODULE;
81 }
82
83 /**
84 * Returns the ServiceCatalog for modules defined to the boot class loader.
85 */
86 public static ServicesCatalog getServicesCatalog() {
87 return SERVICES_CATALOG;
88 }
89
90 /**
91 * Returns the ClassLoaderValue map for the boot class loader.
92 */
93 public static ConcurrentHashMap<?, ?> getClassLoaderValueMap() {
94 return CLASS_LOADER_VALUE_MAP;
95 }
96
97 /**
98 * Register a module with this class loader so that its classes (and
99 * resources) become visible via this class loader.
100 */
101 public static void loadModule(ModuleReference mref) {
102 ClassLoaders.bootLoader().loadModule(mref);
103 }
104
105 /**
106 * Loads the Class object with the given name defined to the boot loader.
107 */
108 public static Class<?> loadClassOrNull(String name) {
109 return ClassLoaders.bootLoader().loadClassOrNull(name);
110 }
111
112 /**
113 * Returns a URL to a resource in a named module defined to the boot loader.
114 */
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