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(true, (task, opt, arg) -> { 231 for (Plugin plugin : plugins) { 232 if (plugin.getName().equals(arg)) { 233 pluginToMaps.remove(plugin); 234 return; 235 } 236 } 237 throw newBadArgs("err.no.such.plugin", arg); 238 }, 239 false, "--disable-plugin")); 240 mainOptions.add(new PluginOption(true, (task, opt, arg) -> { 241 Path path = Paths.get(arg); 242 if (!Files.exists(path) || !Files.isDirectory(path)) { 243 throw newBadArgs("err.image.must.exist", path); 244 } 245 existingImage = path.toAbsolutePath(); 246 }, true, "--post-process-path")); 247 mainOptions.add(new PluginOption(true, 248 (task, opt, arg) -> { 249 lastSorter = arg; 250 }, 251 true, "--resources-last-sorter")); 252 mainOptions.add(new PluginOption(false, 253 (task, opt, arg) -> { 254 listPlugins = true; 255 }, 256 false, "--list-plugins")); 257 } 258 259 private List<Map<String, String>> argListFor(Plugin plugin) { 260 List<Map<String, String>> mapList = pluginToMaps.get(plugin); 261 if (mapList == null) { 262 mapList = new ArrayList<>(); 263 pluginToMaps.put(plugin, mapList); 264 } 265 return mapList; 266 } 267 268 private void addEmptyArgumentMap(Plugin plugin) { 269 argListFor(plugin).add(Collections.emptyMap()); 270 } 271 272 private Map<String, String> addArgumentMap(Plugin plugin) { 273 Map<String, String> map = new HashMap<>(); 274 argListFor(plugin).add(map); 275 return map; 276 } 277 278 private void addOrderedPluginOptions(Plugin plugin, 279 Set<String> optionsSeen) throws BadArgs { 280 String option = plugin.getOption(); 281 if (option == null) { 282 return; 283 } 284 285 // make sure that more than one plugin does not use the same option! 286 if (optionsSeen.contains(option)) { 287 throw new BadArgs("err.plugin.mutiple.options", 288 option); 289 } 290 optionsSeen.add(option); 291 292 PluginOption plugOption 293 = new PluginOption(plugin.hasArguments(), 294 (task, opt, arg) -> { 295 if (!Utils.isFunctional(plugin)) { 296 throw newBadArgs("err.provider.not.functional", 297 option); 298 } 299 300 if (! plugin.hasArguments()) { 301 addEmptyArgumentMap(plugin); 302 return; 303 } 304 305 Map<String, String> m = addArgumentMap(plugin); 306 // handle one or more arguments 307 if (arg.indexOf(':') == -1) { 308 // single argument case 309 m.put(option, arg); 310 } else { 311 // This option can accept more than one arguments 312 // like --option_name=arg_value:arg2=value2:arg3=value3 313 314 // ":" followed by word char condition takes care of args that 315 // like Windows absolute paths "C:\foo", "C:/foo" [cygwin] etc. 316 // This enforces that key names start with a word character. 317 String[] args = arg.split(":(?=\\w)", -1); 318 String firstArg = args[0]; 319 if (firstArg.isEmpty()) { 320 throw newBadArgs("err.provider.additional.arg.error", 321 option, arg); 322 } 323 m.put(option, firstArg); 324 // process the additional arguments 325 for (int i = 1; i < args.length; i++) { 326 String addArg = args[i]; 327 int eqIdx = addArg.indexOf('='); 328 if (eqIdx == -1) { 329 throw newBadArgs("err.provider.additional.arg.error", 330 option, arg); 331 } 332 333 String addArgName = addArg.substring(0, eqIdx); 334 String addArgValue = addArg.substring(eqIdx+1); 335 if (addArgName.isEmpty() || addArgValue.isEmpty()) { 336 throw newBadArgs("err.provider.additional.arg.error", 337 option, arg); 338 } 339 m.put(addArgName, addArgValue); 340 } 341 } 342 }, 343 false, "--" + option); 344 pluginsOptions.add(plugOption); 345 346 if (Utils.isFunctional(plugin)) { 347 if (Utils.isAutoEnabled(plugin)) { 348 addEmptyArgumentMap(plugin); 349 } 350 351 if (plugin instanceof DefaultCompressPlugin) { 352 plugOption 353 = new PluginOption(false, 354 (task, opt, arg) -> { 355 Map<String, String> m = addArgumentMap(plugin); 356 m.put(DefaultCompressPlugin.NAME, DefaultCompressPlugin.LEVEL_2); 357 }, false, "--compress", "-c"); 358 mainOptions.add(plugOption); 359 } else if (plugin instanceof StripDebugPlugin) { 360 plugOption 361 = new PluginOption(false, 362 (task, opt, arg) -> { 363 addArgumentMap(plugin); 364 }, false, "--strip-debug", "-G"); 365 mainOptions.add(plugOption); 366 } else if (plugin instanceof ExcludeJmodSectionPlugin) { 367 plugOption = new PluginOption(false, (task, opt, arg) -> { 368 Map<String, String> m = addArgumentMap(plugin); 369 m.put(ExcludeJmodSectionPlugin.NAME, 370 ExcludeJmodSectionPlugin.MAN_PAGES); 371 }, false, "--no-man-pages"); 372 mainOptions.add(plugOption); 373 374 plugOption = new PluginOption(false, (task, opt, arg) -> { 375 Map<String, String> m = addArgumentMap(plugin); 376 m.put(ExcludeJmodSectionPlugin.NAME, 377 ExcludeJmodSectionPlugin.INCLUDE_HEADER_FILES); 378 }, false, "--no-header-files"); 379 mainOptions.add(plugOption); 380 } 381 } 382 } 383 384 private PluginOption getOption(String name) throws BadArgs { 385 for (PluginOption o : pluginsOptions) { 386 if (o.matches(name)) { 387 return o; 388 } 389 } 390 for (PluginOption o : mainOptions) { 391 if (o.matches(name)) { 392 return o; 393 } 394 } 395 return null; 396 } 397 398 private PluginsConfiguration getPluginsConfig(Path output, Map<String, String> launchers 399 ) throws IOException, BadArgs { 400 if (output != null) { 401 if (Files.exists(output)) { 402 throw new PluginException(PluginsResourceBundle. 403 getMessage("err.dir.already.exits", output)); 404 } 405 } 406 407 List<Plugin> pluginsList = new ArrayList<>(); 408 for (Entry<Plugin, List<Map<String, String>>> entry : pluginToMaps.entrySet()) { 409 Plugin plugin = entry.getKey(); 410 List<Map<String, String>> argsMaps = entry.getValue(); 411 412 // same plugin option may be used multiple times in command line. 413 // we call configure once for each occurrence. It is upto the plugin 414 // to 'merge' and/or 'override' arguments. 415 for (Map<String, String> map : argsMaps) { 416 try { 417 plugin.configure(Collections.unmodifiableMap(map)); 418 } catch (IllegalArgumentException e) { 419 if (JlinkTask.DEBUG) { 420 System.err.println("Plugin " + plugin.getName() + " threw exception with config: " + map); 421 e.printStackTrace(); 422 } 423 throw e; 424 } 425 } 426 427 if (!Utils.isDisabled(plugin)) { 428 pluginsList.add(plugin); 429 } 430 } 431 432 // recreate or postprocessing don't require an output directory. 433 ImageBuilder builder = null; 434 if (output != null) { 435 builder = new DefaultImageBuilder(output, launchers); 436 } 437 438 return new Jlink.PluginsConfiguration(pluginsList, 439 builder, lastSorter); 440 } 441 } 442 443 private static final class ResourceBundleHelper { 444 445 private final ResourceBundle bundle; 446 private final ResourceBundle pluginBundle; 447 448 ResourceBundleHelper(String path) { 449 Locale locale = Locale.getDefault(); 450 try { 451 bundle = ResourceBundle.getBundle(path, locale); 452 pluginBundle = ResourceBundle.getBundle("jdk.tools.jlink.resources.plugins", locale); 453 } catch (MissingResourceException e) { 454 throw new InternalError("Cannot find jlink resource bundle for locale " + locale); 455 } 456 } 457 458 String getMessage(String key, Object... args) { 459 String val; 460 try { 461 val = bundle.getString(key); 462 } catch (MissingResourceException e) { 463 // XXX OK, check in plugin bundle 464 val = pluginBundle.getString(key); 465 } 466 return MessageFormat.format(val, args); 467 } 468 469 } 470 471 public final class OptionsHelper<T> { 472 473 private final List<Option<T>> options; 474 private String[] command; 475 private String defaults; 476 477 OptionsHelper(List<Option<T>> options) { 478 this.options = options; 479 } 480 481 private boolean hasArgument(String optionName) throws BadArgs { 482 Option<?> opt = getOption(optionName); 483 if (opt == null) { 484 opt = pluginOptions.getOption(optionName); 485 if (opt == null) { 486 throw new BadArgs("err.unknown.option", optionName). 487 showUsage(true); 488 } 489 } 490 return opt.hasArg; 491 } 492 493 public boolean shouldListPlugins() { 494 return pluginOptions.listPlugins; 495 } 496 497 private String getPluginsPath(String[] args) throws BadArgs { 498 return null; 499 } 500 501 // used by jimage. Return unhandled arguments like "create", "describe". 502 public List<String> handleOptions(T task, String[] args) throws BadArgs { 503 return handleOptions(task, args, true); 504 } 505 506 // used by jlink. No unhandled arguments like "create", "describe". 507 void handleOptionsNoUnhandled(T task, String[] args) throws BadArgs { 508 handleOptions(task, args, false); 509 } 510 511 // shared code that handles options for both jlink and jimage. jimage uses arguments like 512 // "create", "describe" etc. as "task names". Those arguments are unhandled here and returned 513 // as "unhandled arguments list". jlink does not want such arguments. "collectUnhandled" flag 514 // tells whether to allow for unhandled arguments or not. 515 private List<String> handleOptions(T task, String[] args, boolean collectUnhandled) throws BadArgs { 516 // findbugs warning, copy instead of keeping a reference. 517 command = Arrays.copyOf(args, args.length); 518 519 // Must extract it prior to do any option analysis. 520 // Required to interpret custom plugin options. 521 // Unit tests can call Task multiple time in same JVM. 522 pluginOptions = new PluginsHelper(null); 523 524 List<String> rest = collectUnhandled? new ArrayList<>() : null; 525 // process options 526 for (int i = 0; i < args.length; i++) { 527 if (args[i].startsWith("-")) { 528 String name = args[i]; 529 PluginOption pluginOption = null; 530 Option<T> option = getOption(name); 531 if (option == null) { 532 pluginOption = pluginOptions.getOption(name); 533 if (pluginOption == null) { 534 535 throw new BadArgs("err.unknown.option", name). 536 showUsage(true); 537 } 538 } 539 Option<?> opt = pluginOption == null ? option : pluginOption; 540 String param = null; 541 if (opt.hasArg) { 542 if (name.startsWith("--") && name.indexOf('=') > 0) { 543 param = name.substring(name.indexOf('=') + 1, 544 name.length()); 545 } else if (i + 1 < args.length) { 546 param = args[++i]; 547 } 548 if (param == null || param.isEmpty() 549 || (param.length() >= 2 && param.charAt(0) == '-' 550 && param.charAt(1) == '-')) { 551 throw new BadArgs("err.missing.arg", name). 552 showUsage(true); 553 } 554 } 555 if (pluginOption != null) { 556 pluginOption.process(pluginOptions, name, param); 557 } else { 558 option.process(task, name, param); 559 } 560 if (opt.ignoreRest()) { 561 i = args.length; 562 } 563 } else { 564 if (collectUnhandled) { 565 rest.add(args[i]); 566 } else { 567 throw new BadArgs("err.orphan.argument", args[i]). 568 showUsage(true); 569 } 570 } 571 } 572 return rest; 573 } 574 575 private Option<T> getOption(String name) { 576 for (Option<T> o : options) { 577 if (o.matches(name)) { 578 return o; 579 } 580 } 581 return null; 582 } 583 584 public void showHelp(String progName) { 585 log.println(bundleHelper.getMessage("main.usage", progName)); 586 Stream.concat(options.stream(), pluginOptions.mainOptions.stream()) 587 .filter(option -> !option.isHidden()) 588 .sorted() 589 .forEach(option -> { 590 log.println(bundleHelper.getMessage(option.resourceName())); 591 }); 592 593 log.println(bundleHelper.getMessage("main.command.files")); 594 } 595 596 public void listPlugins() { 597 log.println("\n" + bundleHelper.getMessage("main.extended.help")); 598 List<Plugin> pluginList = PluginRepository. 599 getPlugins(pluginOptions.pluginsLayer); 600 601 for (Plugin plugin : Utils.getSortedPlugins(pluginList)) { 602 showPlugin(plugin, log); 603 } 604 605 log.println("\n" + bundleHelper.getMessage("main.extended.help.footer")); 606 } 607 608 private void showPlugin(Plugin plugin, PrintWriter log) { 609 if (showsPlugin(plugin)) { 610 log.println("\n" + bundleHelper.getMessage("main.plugin.name") 611 + ": " + plugin.getName()); 612 613 // print verbose details for non-builtin plugins 614 if (!Utils.isBuiltin(plugin)) { 615 log.println(bundleHelper.getMessage("main.plugin.class") 616 + ": " + plugin.getClass().getName()); 617 log.println(bundleHelper.getMessage("main.plugin.module") 618 + ": " + plugin.getClass().getModule().getName()); 619 Category category = plugin.getType(); 620 log.println(bundleHelper.getMessage("main.plugin.category") 621 + ": " + category.getName()); 622 log.println(bundleHelper.getMessage("main.plugin.state") 623 + ": " + plugin.getStateDescription()); 624 } 625 626 String option = plugin.getOption(); 627 if (option != null) { 628 log.println(bundleHelper.getMessage("main.plugin.option") 629 + ": --" + plugin.getOption() 630 + (plugin.hasArguments()? ("=" + plugin.getArgumentsDescription()) : "")); 631 } 632 633 // description can be long spanning more than one line and so 634 // print a newline after description label. 635 log.println(bundleHelper.getMessage("main.plugin.description") 636 + ": " + plugin.getDescription()); 637 } 638 } 639 640 String[] getInputCommand() { 641 return command; 642 } 643 644 String getDefaults() { 645 return defaults; 646 } 647 648 public Layer getPluginsLayer() { 649 return pluginOptions.pluginsLayer; 650 } 651 } 652 653 private PluginsHelper pluginOptions; 654 private PrintWriter log; 655 private final ResourceBundleHelper bundleHelper; 656 657 public TaskHelper(String path) { 658 if (!JLINK_BUNDLE.equals(path) && !JIMAGE_BUNDLE.equals(path)) { 659 throw new IllegalArgumentException("Invalid Bundle"); 660 } 661 this.bundleHelper = new ResourceBundleHelper(path); 662 } 663 664 public <T> OptionsHelper<T> newOptionsHelper(Class<T> clazz, 665 Option<?>[] options) { 666 List<Option<T>> optionsList = new ArrayList<>(); 667 for (Option<?> o : options) { 668 @SuppressWarnings("unchecked") 669 Option<T> opt = (Option<T>) o; 670 optionsList.add(opt); 671 } 672 return new OptionsHelper<>(optionsList); 673 } 674 675 public BadArgs newBadArgs(String key, Object... args) { 676 return new BadArgs(key, args); 677 } 678 679 public String getMessage(String key, Object... args) { 680 return bundleHelper.getMessage(key, args); 681 } 682 683 public void setLog(PrintWriter log) { 684 this.log = log; 685 } 686 687 public void reportError(String key, Object... args) { 688 log.println(bundleHelper.getMessage("error.prefix") + " " 689 + bundleHelper.getMessage(key, args)); 690 } 691 692 public void reportUnknownError(String message) { 693 log.println(bundleHelper.getMessage("error.prefix") + " " + message); 694 } 695 696 public void warning(String key, Object... args) { 697 log.println(bundleHelper.getMessage("warn.prefix") + " " 698 + bundleHelper.getMessage(key, args)); 699 } 700 701 public PluginsConfiguration getPluginsConfig(Path output, Map<String, String> launchers) 702 throws IOException, BadArgs { 703 return pluginOptions.getPluginsConfig(output, launchers); 704 } 705 706 public Path getExistingImage() { 707 return pluginOptions.existingImage; 708 } 709 710 public void showVersion(boolean full) { 711 log.println(version(full ? "full" : "release")); 712 } 713 714 public String version(String key) { 715 return System.getProperty("java.version"); 716 } 717 718 static Layer createPluginsLayer(List<Path> paths) { 719 720 Path[] dirs = paths.toArray(new Path[0]); 721 ModuleFinder finder = ModulePath.of(Runtime.version(), true, dirs); 722 Configuration bootConfiguration = Layer.boot().configuration(); 723 try { 724 Configuration cf = bootConfiguration 725 .resolveAndBind(ModuleFinder.of(), 726 finder, 727 Collections.emptySet()); 728 ClassLoader scl = ClassLoader.getSystemClassLoader(); 729 return Layer.boot().defineModulesWithOneLoader(cf, scl); 730 } catch (Exception ex) { 731 // Malformed plugin modules (e.g.: same package in multiple modules). 732 throw new PluginException("Invalid modules in the plugins path: " + ex); 733 } 734 } 735 736 // Display all plugins 737 private static boolean showsPlugin(Plugin plugin) { 738 return (!Utils.isDisabled(plugin) && plugin.getOption() != null); 739 } 740 }