1 /* 2 * Copyright (c) 2015, 2016, 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 23 * questions. 24 */ 25 package jdk.tools.jlink.internal; 26 27 import java.io.File; 28 import java.io.IOException; 29 import java.io.PrintWriter; 30 import java.lang.module.Configuration; 31 import java.lang.module.ModuleFinder; 32 import java.lang.reflect.Layer; 33 import java.nio.file.Files; 34 import java.nio.file.Path; 35 import java.nio.file.Paths; 36 import java.text.MessageFormat; 37 import java.util.ArrayList; 38 import java.util.Arrays; 39 import java.util.Collections; 40 import java.util.HashMap; 41 import java.util.HashSet; 42 import java.util.List; 43 import java.util.Locale; 44 import java.util.Map; 45 import java.util.Map.Entry; 46 import java.util.MissingResourceException; 47 import java.util.ResourceBundle; 48 import java.util.Set; 49 import java.util.stream.Stream; 50 51 import jdk.tools.jlink.internal.plugins.ExcludeJmodSectionPlugin; 52 import jdk.tools.jlink.plugin.Plugin; 53 import jdk.tools.jlink.plugin.Plugin.Category; 54 import jdk.tools.jlink.builder.DefaultImageBuilder; 55 import jdk.tools.jlink.builder.ImageBuilder; 56 import jdk.tools.jlink.plugin.PluginException; 57 import jdk.tools.jlink.internal.Jlink.PluginsConfiguration; 58 import jdk.tools.jlink.internal.plugins.PluginsResourceBundle; 59 import jdk.tools.jlink.internal.plugins.DefaultCompressPlugin; 60 import jdk.tools.jlink.internal.plugins.StripDebugPlugin; 61 import jdk.internal.module.ModulePath; 62 63 /** 64 * 65 * JLink and JImage tools shared helper. 66 */ 67 public final class TaskHelper { 68 69 public static final String JLINK_BUNDLE = "jdk.tools.jlink.resources.jlink"; 70 public static final String JIMAGE_BUNDLE = "jdk.tools.jimage.resources.jimage"; 71 72 private static final String DEFAULTS_PROPERTY = "jdk.jlink.defaults"; 73 74 public final class BadArgs extends Exception { 75 76 static final long serialVersionUID = 8765093759964640721L; 77 78 private BadArgs(String key, Object... args) { 79 super(bundleHelper.getMessage(key, args)); 80 this.key = key; 81 this.args = args; 82 } 83 84 public BadArgs showUsage(boolean b) { 85 showUsage = b; 86 return this; 87 } 88 public final String key; 89 public final Object[] args; 90 public boolean showUsage; 91 } 92 93 public static class Option<T> implements Comparable<T> { 94 public interface Processing<T> { 95 96 void process(T task, String opt, String arg) throws BadArgs; 97 } 98 99 final boolean hasArg; 100 final Processing<T> processing; 101 final boolean hidden; 102 final String name; 103 final String shortname; 104 105 public Option(boolean hasArg, Processing<T> processing, boolean hidden, String name, String shortname) { 106 if (!name.startsWith("--")) { 107 throw new RuntimeException("option name missing --, " + name); 108 } 109 if (!shortname.isEmpty() && !shortname.startsWith("-")) { 110 throw new RuntimeException("short name missing -, " + shortname); 111 } 112 113 this.hasArg = hasArg; 114 this.processing = processing; 115 this.hidden = hidden; 116 this.name = name; 117 this.shortname = shortname; 118 } 119 120 public Option(boolean hasArg, Processing<T> processing, String name, String shortname) { 121 this(hasArg, processing, false, name, shortname); 122 } 123 124 public Option(boolean hasArg, Processing<T> processing, boolean hidden, String name) { 125 this(hasArg, processing, hidden, name, ""); 126 } 127 128 public Option(boolean hasArg, Processing<T> processing, String name) { 129 this(hasArg, processing, false, name, ""); 130 } 131 132 public boolean isHidden() { 133 return hidden; 134 } 135 136 public boolean matches(String opt) { 137 return opt.equals(name) || 138 opt.equals(shortname) || 139 hasArg && opt.startsWith("--") && opt.startsWith(name + "="); 140 } 141 142 public boolean ignoreRest() { 143 return false; 144 } 145 146 void process(T task, String opt, String arg) throws BadArgs { 147 processing.process(task, opt, arg); 148 } 149 150 public String getName() { 151 return name; 152 } 153 154 public String resourceName() { 155 return resourcePrefix() + name.substring(2); 156 } 157 158 public String getShortname() { 159 return shortname; 160 } 161 162 public String resourcePrefix() { 163 return "main.opt."; 164 } 165 166 @Override 167 public int compareTo(Object object) { 168 if (!(object instanceof Option<?>)) { 169 throw new RuntimeException("comparing non-Option"); 170 } 171 172 Option<?> option = (Option<?>)object; 173 174 return name.compareTo(option.name); 175 } 176 177 } 178 179 private static class PluginOption extends Option<PluginsHelper> { 180 public PluginOption(boolean hasArg, 181 Processing<PluginsHelper> processing, boolean hidden, String name, String shortname) { 182 super(hasArg, processing, hidden, name, shortname); 183 } 184 185 public PluginOption(boolean hasArg, 186 Processing<PluginsHelper> processing, boolean hidden, String name) { 187 super(hasArg, processing, hidden, name, ""); 188 } 189 190 public String resourcePrefix() { 191 return "plugin.opt."; 192 } 193 } 194 195 private final class PluginsHelper { 196 197 private Layer pluginsLayer = Layer.boot(); 198 private final List<Plugin> plugins; 199 private String lastSorter; 200 private boolean listPlugins; 201 private Path existingImage; 202 203 // plugin to args maps. Each plugin may be used more than once in command line. 204 // Each such occurrence results in a Map of arguments. So, there could be multiple 205 // args maps per plugin instance. 206 private final Map<Plugin, List<Map<String, String>>> pluginToMaps = new HashMap<>(); 207 private final List<PluginOption> pluginsOptions = new ArrayList<>(); 208 private final List<PluginOption> mainOptions = new ArrayList<>(); 209 210 private PluginsHelper(String pp) throws BadArgs { 211 212 if (pp != null) { 213 String[] dirs = pp.split(File.pathSeparator); 214 List<Path> paths = new ArrayList<>(dirs.length); 215 for (String dir : dirs) { 216 paths.add(Paths.get(dir)); 217 } 218 219 pluginsLayer = createPluginsLayer(paths); 220 } 221 222 plugins = PluginRepository.getPlugins(pluginsLayer); 223 224 Set<String> optionsSeen = new HashSet<>(); 225 for (Plugin plugin : plugins) { 226 if (!Utils.isDisabled(plugin)) { 227 addOrderedPluginOptions(plugin, optionsSeen); 228 } 229 } 230 mainOptions.add(new PluginOption(false, 231 (task, opt, arg) -> { 232 // This option is handled prior 233 // to have the options parsed. 234 }, 235 false, "--plugin-module-path")); 236 mainOptions.add(new PluginOption(true, (task, opt, arg) -> { 237 for (Plugin plugin : plugins) { 238 if (plugin.getName().equals(arg)) { 239 pluginToMaps.remove(plugin); 240 return; 241 } 242 } 243 throw newBadArgs("err.no.such.plugin", arg); 244 }, 245 false, "--disable-plugin")); 246 mainOptions.add(new PluginOption(true, (task, opt, arg) -> { 247 Path path = Paths.get(arg); 248 if (!Files.exists(path) || !Files.isDirectory(path)) { 249 throw newBadArgs("err.image.must.exist", path); 250 } 251 existingImage = path.toAbsolutePath(); 252 }, true, "--post-process-path")); 253 mainOptions.add(new PluginOption(true, 254 (task, opt, arg) -> { 255 lastSorter = arg; 256 }, 257 true, "--resources-last-sorter")); 258 mainOptions.add(new PluginOption(false, 259 (task, opt, arg) -> { 260 listPlugins = true; 261 }, 262 false, "--list-plugins")); 263 } 264 265 private List<Map<String, String>> argListFor(Plugin plugin) { 266 List<Map<String, String>> mapList = pluginToMaps.get(plugin); 267 if (mapList == null) { 268 mapList = new ArrayList<>(); 269 pluginToMaps.put(plugin, mapList); 270 } 271 return mapList; 272 } 273 274 private void addEmptyArgumentMap(Plugin plugin) { 275 argListFor(plugin).add(Collections.emptyMap()); 276 } 277 278 private Map<String, String> addArgumentMap(Plugin plugin) { 279 Map<String, String> map = new HashMap<>(); 280 argListFor(plugin).add(map); 281 return map; 282 } 283 284 private void addOrderedPluginOptions(Plugin plugin, 285 Set<String> optionsSeen) throws BadArgs { 286 String option = plugin.getOption(); 287 if (option == null) { 288 return; 289 } 290 291 // make sure that more than one plugin does not use the same option! 292 if (optionsSeen.contains(option)) { 293 throw new BadArgs("err.plugin.mutiple.options", 294 option); 295 } 296 optionsSeen.add(option); 297 298 PluginOption plugOption 299 = new PluginOption(plugin.hasArguments(), 300 (task, opt, arg) -> { 301 if (!Utils.isFunctional(plugin)) { 302 throw newBadArgs("err.provider.not.functional", 303 option); 304 } 305 306 if (! plugin.hasArguments()) { 307 addEmptyArgumentMap(plugin); 308 return; 309 } 310 311 Map<String, String> m = addArgumentMap(plugin); 312 // handle one or more arguments 313 if (arg.indexOf(':') == -1) { 314 // single argument case 315 m.put(option, arg); 316 } else { 317 // This option can accept more than one arguments 318 // like --option_name=arg_value:arg2=value2:arg3=value3 319 320 // ":" followed by word char condition takes care of args that 321 // like Windows absolute paths "C:\foo", "C:/foo" [cygwin] etc. 322 // This enforces that key names start with a word character. 323 String[] args = arg.split(":(?=\\w)", -1); 324 String firstArg = args[0]; 325 if (firstArg.isEmpty()) { 326 throw newBadArgs("err.provider.additional.arg.error", 327 option, arg); 328 } 329 m.put(option, firstArg); 330 // process the additional arguments 331 for (int i = 1; i < args.length; i++) { 332 String addArg = args[i]; 333 int eqIdx = addArg.indexOf('='); 334 if (eqIdx == -1) { 335 throw newBadArgs("err.provider.additional.arg.error", 336 option, arg); 337 } 338 339 String addArgName = addArg.substring(0, eqIdx); 340 String addArgValue = addArg.substring(eqIdx+1); 341 if (addArgName.isEmpty() || addArgValue.isEmpty()) { 342 throw newBadArgs("err.provider.additional.arg.error", 343 option, arg); 344 } 345 m.put(addArgName, addArgValue); 346 } 347 } 348 }, 349 false, "--" + option); 350 pluginsOptions.add(plugOption); 351 352 if (Utils.isFunctional(plugin)) { 353 if (Utils.isAutoEnabled(plugin)) { 354 addEmptyArgumentMap(plugin); 355 } 356 357 if (plugin instanceof DefaultCompressPlugin) { 358 plugOption 359 = new PluginOption(false, 360 (task, opt, arg) -> { 361 Map<String, String> m = addArgumentMap(plugin); 362 m.put(DefaultCompressPlugin.NAME, DefaultCompressPlugin.LEVEL_2); 363 }, false, "--compress", "-c"); 364 mainOptions.add(plugOption); 365 } else if (plugin instanceof StripDebugPlugin) { 366 plugOption 367 = new PluginOption(false, 368 (task, opt, arg) -> { 369 addArgumentMap(plugin); 370 }, false, "--strip-debug", "-G"); 371 mainOptions.add(plugOption); 372 } else if (plugin instanceof ExcludeJmodSectionPlugin) { 373 plugOption = new PluginOption(false, (task, opt, arg) -> { 374 Map<String, String> m = addArgumentMap(plugin); 375 m.put(ExcludeJmodSectionPlugin.NAME, 376 ExcludeJmodSectionPlugin.MAN_PAGES); 377 }, false, "--no-man-pages"); 378 mainOptions.add(plugOption); 379 380 plugOption = new PluginOption(false, (task, opt, arg) -> { 381 Map<String, String> m = addArgumentMap(plugin); 382 m.put(ExcludeJmodSectionPlugin.NAME, 383 ExcludeJmodSectionPlugin.INCLUDE_HEADER_FILES); 384 }, false, "--no-header-files"); 385 mainOptions.add(plugOption); 386 } 387 } 388 } 389 390 private PluginOption getOption(String name) throws BadArgs { 391 for (PluginOption o : pluginsOptions) { 392 if (o.matches(name)) { 393 return o; 394 } 395 } 396 for (PluginOption o : mainOptions) { 397 if (o.matches(name)) { 398 return o; 399 } 400 } 401 return null; 402 } 403 404 private PluginsConfiguration getPluginsConfig(Path output, Map<String, String> launchers 405 ) throws IOException, BadArgs { 406 if (output != null) { 407 if (Files.exists(output)) { 408 throw new PluginException(PluginsResourceBundle. 409 getMessage("err.dir.already.exits", output)); 410 } 411 } 412 413 List<Plugin> pluginsList = new ArrayList<>(); 414 for (Entry<Plugin, List<Map<String, String>>> entry : pluginToMaps.entrySet()) { 415 Plugin plugin = entry.getKey(); 416 List<Map<String, String>> argsMaps = entry.getValue(); 417 418 // same plugin option may be used multiple times in command line. 419 // we call configure once for each occurrence. It is upto the plugin 420 // to 'merge' and/or 'override' arguments. 421 for (Map<String, String> map : argsMaps) { 422 try { 423 plugin.configure(Collections.unmodifiableMap(map)); 424 } catch (IllegalArgumentException e) { 425 if (JlinkTask.DEBUG) { 426 System.err.println("Plugin " + plugin.getName() + " threw exception with config: " + map); 427 e.printStackTrace(); 428 } 429 throw e; 430 } 431 } 432 433 if (!Utils.isDisabled(plugin)) { 434 pluginsList.add(plugin); 435 } 436 } 437 438 // recreate or postprocessing don't require an output directory. 439 ImageBuilder builder = null; 440 if (output != null) { 441 builder = new DefaultImageBuilder(output, launchers); 442 } 443 444 return new Jlink.PluginsConfiguration(pluginsList, 445 builder, lastSorter); 446 } 447 } 448 449 private static final class ResourceBundleHelper { 450 451 private final ResourceBundle bundle; 452 private final ResourceBundle pluginBundle; 453 454 ResourceBundleHelper(String path) { 455 Locale locale = Locale.getDefault(); 456 try { 457 bundle = ResourceBundle.getBundle(path, locale); 458 pluginBundle = ResourceBundle.getBundle("jdk.tools.jlink.resources.plugins", locale); 459 } catch (MissingResourceException e) { 460 throw new InternalError("Cannot find jlink resource bundle for locale " + locale); 461 } 462 } 463 464 String getMessage(String key, Object... args) { 465 String val; 466 try { 467 val = bundle.getString(key); 468 } catch (MissingResourceException e) { 469 // XXX OK, check in plugin bundle 470 val = pluginBundle.getString(key); 471 } 472 return MessageFormat.format(val, args); 473 } 474 475 } 476 477 public final class OptionsHelper<T> { 478 479 private final List<Option<T>> options; 480 private String[] command; 481 private String defaults; 482 483 OptionsHelper(List<Option<T>> options) { 484 this.options = options; 485 } 486 487 private boolean hasArgument(String optionName) throws BadArgs { 488 Option<?> opt = getOption(optionName); 489 if (opt == null) { 490 opt = pluginOptions.getOption(optionName); 491 if (opt == null) { 492 throw new BadArgs("err.unknown.option", optionName). 493 showUsage(true); 494 } 495 } 496 return opt.hasArg; 497 } 498 499 public boolean shouldListPlugins() { 500 return pluginOptions.listPlugins; 501 } 502 503 private String getPluginsPath(String[] args) throws BadArgs { 504 return null; 505 } 506 507 // used by jimage. Return unhandled arguments like "create", "describe". 508 public List<String> handleOptions(T task, String[] args) throws BadArgs { 509 return handleOptions(task, args, true); 510 } 511 512 // used by jlink. No unhandled arguments like "create", "describe". 513 void handleOptionsNoUnhandled(T task, String[] args) throws BadArgs { 514 handleOptions(task, args, false); 515 } 516 517 // shared code that handles options for both jlink and jimage. jimage uses arguments like 518 // "create", "describe" etc. as "task names". Those arguments are unhandled here and returned 519 // as "unhandled arguments list". jlink does not want such arguments. "collectUnhandled" flag 520 // tells whether to allow for unhandled arguments or not. 521 private List<String> handleOptions(T task, String[] args, boolean collectUnhandled) throws BadArgs { 522 // findbugs warning, copy instead of keeping a reference. 523 command = Arrays.copyOf(args, args.length); 524 525 // Must extract it prior to do any option analysis. 526 // Required to interpret custom plugin options. 527 // Unit tests can call Task multiple time in same JVM. 528 pluginOptions = new PluginsHelper(null); 529 530 List<String> rest = collectUnhandled? new ArrayList<>() : null; 531 // process options 532 for (int i = 0; i < args.length; i++) { 533 if (args[i].charAt(0) == '-') { 534 String name = args[i]; 535 PluginOption pluginOption = null; 536 Option<T> option = getOption(name); 537 if (option == null) { 538 pluginOption = pluginOptions.getOption(name); 539 if (pluginOption == null) { 540 541 throw new BadArgs("err.unknown.option", name). 542 showUsage(true); 543 } 544 } 545 Option<?> opt = pluginOption == null ? option : pluginOption; 546 String param = null; 547 if (opt.hasArg) { 548 if (name.startsWith("--") && name.indexOf('=') > 0) { 549 param = name.substring(name.indexOf('=') + 1, 550 name.length()); 551 } else if (i + 1 < args.length) { 552 param = args[++i]; 553 } 554 if (param == null || param.isEmpty() 555 || (param.length() >= 2 && param.charAt(0) == '-' 556 && param.charAt(1) == '-')) { 557 throw new BadArgs("err.missing.arg", name). 558 showUsage(true); 559 } 560 } 561 if (pluginOption != null) { 562 pluginOption.process(pluginOptions, name, param); 563 } else { 564 option.process(task, name, param); 565 } 566 if (opt.ignoreRest()) { 567 i = args.length; 568 } 569 } else { 570 if (collectUnhandled) { 571 rest.add(args[i]); 572 } else { 573 throw new BadArgs("err.orphan.argument", args[i]). 574 showUsage(true); 575 } 576 } 577 } 578 return rest; 579 } 580 581 private Option<T> getOption(String name) { 582 for (Option<T> o : options) { 583 if (o.matches(name)) { 584 return o; 585 } 586 } 587 return null; 588 } 589 590 public void showHelp(String progName) { 591 log.println(bundleHelper.getMessage("main.usage", progName)); 592 Stream.concat(options.stream(), pluginOptions.mainOptions.stream()) 593 .filter(option -> !option.isHidden()) 594 .sorted() 595 .forEach(option -> { 596 log.println(bundleHelper.getMessage(option.resourceName())); 597 }); 598 599 log.println(bundleHelper.getMessage("main.command.files")); 600 } 601 602 public void listPlugins() { 603 log.println("\n" + bundleHelper.getMessage("main.extended.help")); 604 List<Plugin> pluginList = PluginRepository. 605 getPlugins(pluginOptions.pluginsLayer); 606 607 for (Plugin plugin : Utils.getSortedPlugins(pluginList)) { 608 showPlugin(plugin, log); 609 } 610 611 log.println("\n" + bundleHelper.getMessage("main.extended.help.footer")); 612 } 613 614 private void showPlugin(Plugin plugin, PrintWriter log) { 615 if (showsPlugin(plugin)) { 616 log.println("\n" + bundleHelper.getMessage("main.plugin.name") 617 + ": " + plugin.getName()); 618 619 // print verbose details for non-builtin plugins 620 if (!Utils.isBuiltin(plugin)) { 621 log.println(bundleHelper.getMessage("main.plugin.class") 622 + ": " + plugin.getClass().getName()); 623 log.println(bundleHelper.getMessage("main.plugin.module") 624 + ": " + plugin.getClass().getModule().getName()); 625 Category category = plugin.getType(); 626 log.println(bundleHelper.getMessage("main.plugin.category") 627 + ": " + category.getName()); 628 log.println(bundleHelper.getMessage("main.plugin.state") 629 + ": " + plugin.getStateDescription()); 630 } 631 632 String option = plugin.getOption(); 633 if (option != null) { 634 log.println(bundleHelper.getMessage("main.plugin.option") 635 + ": --" + plugin.getOption() 636 + (plugin.hasArguments()? ("=" + plugin.getArgumentsDescription()) : "")); 637 } 638 639 // description can be long spanning more than one line and so 640 // print a newline after description label. 641 log.println(bundleHelper.getMessage("main.plugin.description") 642 + ": " + plugin.getDescription()); 643 } 644 } 645 646 String[] getInputCommand() { 647 return command; 648 } 649 650 String getDefaults() { 651 return defaults; 652 } 653 654 public Layer getPluginsLayer() { 655 return pluginOptions.pluginsLayer; 656 } 657 } 658 659 private PluginsHelper pluginOptions; 660 private PrintWriter log; 661 private final ResourceBundleHelper bundleHelper; 662 663 public TaskHelper(String path) { 664 if (!JLINK_BUNDLE.equals(path) && !JIMAGE_BUNDLE.equals(path)) { 665 throw new IllegalArgumentException("Invalid Bundle"); 666 } 667 this.bundleHelper = new ResourceBundleHelper(path); 668 } 669 670 public <T> OptionsHelper<T> newOptionsHelper(Class<T> clazz, 671 Option<?>[] options) { 672 List<Option<T>> optionsList = new ArrayList<>(); 673 for (Option<?> o : options) { 674 @SuppressWarnings("unchecked") 675 Option<T> opt = (Option<T>) o; 676 optionsList.add(opt); 677 } 678 return new OptionsHelper<>(optionsList); 679 } 680 681 public BadArgs newBadArgs(String key, Object... args) { 682 return new BadArgs(key, args); 683 } 684 685 public String getMessage(String key, Object... args) { 686 return bundleHelper.getMessage(key, args); 687 } 688 689 public void setLog(PrintWriter log) { 690 this.log = log; 691 } 692 693 public void reportError(String key, Object... args) { 694 log.println(bundleHelper.getMessage("error.prefix") + " " 695 + bundleHelper.getMessage(key, args)); 696 } 697 698 public void reportUnknownError(String message) { 699 log.println(bundleHelper.getMessage("error.prefix") + " " + message); 700 } 701 702 public void warning(String key, Object... args) { 703 log.println(bundleHelper.getMessage("warn.prefix") + " " 704 + bundleHelper.getMessage(key, args)); 705 } 706 707 public PluginsConfiguration getPluginsConfig(Path output, Map<String, String> launchers) 708 throws IOException, BadArgs { 709 return pluginOptions.getPluginsConfig(output, launchers); 710 } 711 712 public Path getExistingImage() { 713 return pluginOptions.existingImage; 714 } 715 716 public void showVersion(boolean full) { 717 log.println(version(full ? "full" : "release")); 718 } 719 720 public String version(String key) { 721 return System.getProperty("java.version"); 722 } 723 724 static Layer createPluginsLayer(List<Path> paths) { 725 726 Path[] dirs = paths.toArray(new Path[0]); 727 ModuleFinder finder = new ModulePath(Runtime.version(), true, dirs); 728 Configuration bootConfiguration = Layer.boot().configuration(); 729 try { 730 Configuration cf = bootConfiguration 731 .resolveRequiresAndUses(ModuleFinder.of(), 732 finder, 733 Collections.emptySet()); 734 ClassLoader scl = ClassLoader.getSystemClassLoader(); 735 return Layer.boot().defineModulesWithOneLoader(cf, scl); 736 } catch (Exception ex) { 737 // Malformed plugin modules (e.g.: same package in multiple modules). 738 throw new PluginException("Invalid modules in the plugins path: " + ex); 739 } 740 } 741 742 // Display all plugins 743 private static boolean showsPlugin(Plugin plugin) { 744 return (!Utils.isDisabled(plugin) && plugin.getOption() != null); 745 } 746 }