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"nb-javac" is a patched version of OpenJDK "javac", i.e., the Java compiler. This has long been part of NetBeans, providing a highly tuned Java compiler specifically for the Java editor i.e., parsing and lexing for features such as syntax coloring, code completion.
/*
* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package nbjavac;
import java.lang.reflect.Method;
import java.nio.file.Path;
import java.util.Collections;
import java.util.Set;
public class ModuleWrapper {
private final Class clazz;
private ModuleWrapper(Class c) {
this.clazz = c;
}
public static ModuleWrapper getModule(Class clazz) {
return new ModuleWrapper(clazz);
}
public static ModuleWrapper getUnnamedModule(ClassLoader loader) {
return new ModuleWrapper(null);
}
public String getName() {
switch (clazz.getName()) {
case "jdk.javadoc.internal.api.JavadocTool": return "jdk.javadoc";
case "com.sun.tools.javac.api.JavacTool": return "jdk.compiler";
default: return "jdk.compiler"; //XXX
}
}
public boolean isNamed() {
return false;
}
public void addExports(String pack, ModuleWrapper to) {
}
public void addUses(Class service) {
if (this.clazz != null) {
ensureUses(this.clazz, service);
}
ensureUses(service);
}
static void ensureUses(Class clazz) {
// ServiceLoaderWrapper.class.getModule().addUses(aClass);
Class thisClass = ServiceLoaderWrapper.class;
ensureUses(thisClass, clazz);
}
private static void ensureUses(Class thisClass, Class clazz) {
try {
final Class Module = Class.forName("java.lang.Module");
final Method addUses = Module.getDeclaredMethod("addUses", Class.class);
final Method getModule = Class.class.getDeclaredMethod("getModule");
final Object thisClassModule = getModule.invoke(thisClass);
addUses.invoke(thisClassModule, clazz);
} catch (SecurityException | ReflectiveOperationException t) {
//ignore - might log?
}
}
public static class ModuleFinder {
public static ModuleFinder of(Path... paths) {
return new ModuleFinder();
}
}
public static class ModuleLayer {
public static ModuleLayer boot() {
return new ModuleLayer();
}
public Configuration configuration() {
return new Configuration();
}
public ModuleLayer defineModulesWithOneLoader(Configuration cf, ClassLoader systemClassLoader) {
return new ModuleLayer();
}
public Set modules() {
return Collections.emptySet();
}
}
public static class Configuration {
public Configuration resolveAndBind(ModuleFinder of, ModuleFinder finder, Set emptySet) {
return new Configuration();
}
}
public static class ModuleDescriptor {
public static class Version {
public static void parse(String v) {
//TODO: do validation
}
}
}
}