116 * the boot class loader. It is not used for class loading.
117 */
118 private static class BootClassLoader extends BuiltinClassLoader {
119 BootClassLoader(URLClassPath bcp) {
120 super(null, bcp);
121 }
122
123 @Override
124 protected Class<?> loadClassOrNull(String cn) {
125 return JLA.findBootstrapClassOrNull(this, cn);
126 }
127 };
128
129 /**
130 * The extension class loader, a unique type to make it easier to distinguish
131 * from the application class loader.
132 */
133 private static class ExtClassLoader extends BuiltinClassLoader {
134 static {
135 if (!ClassLoader.registerAsParallelCapable())
136 throw new InternalError();
137 }
138
139 ExtClassLoader(BootClassLoader parent) {
140 super(parent, null);
141 }
142
143 /**
144 * Called by the VM to support define package for AppCDS.
145 *
146 * Shared classes are returned in ClassLoader::findLoadedClass
147 * that bypass the defineClass call.
148 */
149 private Package definePackage(String pn, Module module) {
150 return JLA.definePackage(this, pn, module);
151 }
152 }
153
154 /**
155 * The application class loader that is a {@code BuiltinClassLoader} with
156 * customizations to be compatible with long standing behavior.
157 */
158 private static class AppClassLoader extends BuiltinClassLoader {
159 static {
160 if (!ClassLoader.registerAsParallelCapable())
161 throw new InternalError();
162 }
163
164 final URLClassPath ucp;
165
166 AppClassLoader(ExtClassLoader parent, URLClassPath ucp) {
167 super(parent, ucp);
168 this.ucp = ucp;
169 }
170
171 @Override
172 protected Class<?> loadClass(String cn, boolean resolve)
173 throws ClassNotFoundException
174 {
175 // for compatibility reasons, say where restricted package list has
176 // been updated to list API packages in the unnamed module.
177 SecurityManager sm = System.getSecurityManager();
178 if (sm != null) {
179 int i = cn.lastIndexOf('.');
180 if (i != -1) {
181 sm.checkPackageAccess(cn.substring(0, i));
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116 * the boot class loader. It is not used for class loading.
117 */
118 private static class BootClassLoader extends BuiltinClassLoader {
119 BootClassLoader(URLClassPath bcp) {
120 super(null, bcp);
121 }
122
123 @Override
124 protected Class<?> loadClassOrNull(String cn) {
125 return JLA.findBootstrapClassOrNull(this, cn);
126 }
127 };
128
129 /**
130 * The extension class loader, a unique type to make it easier to distinguish
131 * from the application class loader.
132 */
133 private static class ExtClassLoader extends BuiltinClassLoader {
134 static {
135 if (!ClassLoader.registerAsParallelCapable())
136 throw new InternalError("Classloader is not registered" +
137 " as parallel capable.");
138 }
139
140 ExtClassLoader(BootClassLoader parent) {
141 super(parent, null);
142 }
143
144 /**
145 * Called by the VM to support define package for AppCDS.
146 *
147 * Shared classes are returned in ClassLoader::findLoadedClass
148 * that bypass the defineClass call.
149 */
150 private Package definePackage(String pn, Module module) {
151 return JLA.definePackage(this, pn, module);
152 }
153 }
154
155 /**
156 * The application class loader that is a {@code BuiltinClassLoader} with
157 * customizations to be compatible with long standing behavior.
158 */
159 private static class AppClassLoader extends BuiltinClassLoader {
160 static {
161 if (!ClassLoader.registerAsParallelCapable())
162 throw new InternalError("Classloader is not registered" +
163 " as parallel capable.");
164 }
165
166 final URLClassPath ucp;
167
168 AppClassLoader(ExtClassLoader parent, URLClassPath ucp) {
169 super(parent, ucp);
170 this.ucp = ucp;
171 }
172
173 @Override
174 protected Class<?> loadClass(String cn, boolean resolve)
175 throws ClassNotFoundException
176 {
177 // for compatibility reasons, say where restricted package list has
178 // been updated to list API packages in the unnamed module.
179 SecurityManager sm = System.getSecurityManager();
180 if (sm != null) {
181 int i = cn.lastIndexOf('.');
182 if (i != -1) {
183 sm.checkPackageAccess(cn.substring(0, i));
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