/usr/share/doc/libcommons-lang3-java/api/org/apache/commons/lang3/reflect/ConstructorUtils.html is in libcommons-lang3-java-doc 3.5-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<!-- NewPage -->
<html>
<head>
<!-- Generated by javadoc -->
<title>ConstructorUtils (Apache Commons Lang 3.5 API)</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style">
<link rel="stylesheet" type="text/css" href="../../../../../jquery/jquery-ui.css" title="Style">
<script type="text/javascript" src="../../../../../script.js"></script>
<script type="text/javascript" src="../../../../../jquery/jszip/dist/jszip.min.js"></script>
<script type="text/javascript" src="../../../../../jquery/jszip-utils/dist/jszip-utils.min.js"></script>
<!--[if IE]>
<script type="text/javascript" src="../../../../../jquery/jszip-utils/dist/jszip-utils-ie.min.js"></script>
<![endif]-->
<script type="text/javascript" src="../../../../../jquery/jquery-1.10.2.js"></script>
<script type="text/javascript" src="../../../../../jquery/jquery-ui.js"></script>
</head>
<body>
<script type="text/javascript"><!--
try {
if (location.href.indexOf('is-external=true') == -1) {
parent.document.title="ConstructorUtils (Apache Commons Lang 3.5 API)";
}
}
catch(err) {
}
//-->
var methods = {"i0":9,"i1":9,"i2":9,"i3":9,"i4":9,"i5":9,"i6":9};
var tabs = {65535:["t0","All Methods"],1:["t1","Static Methods"],8:["t4","Concrete Methods"]};
var altColor = "altColor";
var rowColor = "rowColor";
var tableTab = "tableTab";
var activeTableTab = "activeTableTab";
var pathtoroot = "../../../../../";loadScripts(document, 'script');</script>
<noscript>
<div>JavaScript is disabled on your browser.</div>
</noscript>
<div class="fixedNav">
<!-- ========= START OF TOP NAVBAR ======= -->
<div class="topNav"><a name="navbar.top">
<!-- -->
</a>
<div class="skipNav"><a href="#skip.navbar.top" title="Skip navigation links">Skip navigation links</a></div>
<a name="navbar.top.firstrow">
<!-- -->
</a>
<ul class="navList" title="Navigation">
<li><a href="../../../../../overview-summary.html">Overview</a></li>
<li><a href="package-summary.html">Package</a></li>
<li class="navBarCell1Rev">Class</li>
<li><a href="class-use/ConstructorUtils.html">Use</a></li>
<li><a href="package-tree.html">Tree</a></li>
<li><a href="../../../../../deprecated-list.html">Deprecated</a></li>
<li><a href="../../../../../index-all.html">Index</a></li>
<li><a href="../../../../../help-doc.html">Help</a></li>
</ul>
</div>
<div class="subNav">
<ul class="navList">
<li>Prev Class</li>
<li><a href="../../../../../org/apache/commons/lang3/reflect/FieldUtils.html" title="class in org.apache.commons.lang3.reflect"><span class="typeNameLink">Next Class</span></a></li>
</ul>
<ul class="navList">
<li><a href="../../../../../index.html?org/apache/commons/lang3/reflect/ConstructorUtils.html" target="_top">Frames</a></li>
<li><a href="ConstructorUtils.html" target="_top">No Frames</a></li>
</ul>
<ul class="navList" id="allclasses_navbar_top">
<li><a href="../../../../../allclasses-noframe.html">All Classes</a></li>
</ul>
<ul class="navListSearch">
<li><label for="search">SEARCH:</label>
<input type="text" id="search" value="search" disabled="disabled">
<input type="reset" id="reset" value="reset" disabled="disabled">
</li>
</ul>
<div>
<script type="text/javascript"><!--
allClassesLink = document.getElementById("allclasses_navbar_top");
if(window==top) {
allClassesLink.style.display = "block";
}
else {
allClassesLink.style.display = "none";
}
//-->
</script>
<noscript>
<div>JavaScript is disabled on your browser.</div>
</noscript>
</div>
<div>
<ul class="subNavList">
<li>Summary: </li>
<li>Nested | </li>
<li>Field | </li>
<li><a href="#constructor.summary">Constr</a> | </li>
<li><a href="#method.summary">Method</a></li>
</ul>
<ul class="subNavList">
<li>Detail: </li>
<li>Field | </li>
<li><a href="#constructor.detail">Constr</a> | </li>
<li><a href="#method.detail">Method</a></li>
</ul>
</div>
<a name="skip.navbar.top">
<!-- -->
</a></div>
<!-- ========= END OF TOP NAVBAR ========= -->
</div>
<div class="navPadding"> </div>
<script type="text/javascript"><!--
$('.navPadding').css('padding-top', $('.fixedNav').css("height"));
//-->
</script>
<!-- ======== START OF CLASS DATA ======== -->
<div class="header">
<div class="subTitle"><span class="packageLabelInType">Package</span> <a href="../../../../../org/apache/commons/lang3/reflect/package-summary.html">org.apache.commons.lang3.reflect</a></div>
<h2 title="Class ConstructorUtils" class="title">Class ConstructorUtils</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">java.lang.Object</a></li>
<li>
<ul class="inheritance">
<li>org.apache.commons.lang3.reflect.ConstructorUtils</li>
</ul>
</li>
</ul>
<div class="description">
<ul class="blockList">
<li class="blockList">
<hr>
<pre>public class <span class="typeNameLabel">ConstructorUtils</span>
extends <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></pre>
<div class="block"><p> Utility reflection methods focused on constructors, modeled after
<a href="../../../../../org/apache/commons/lang3/reflect/MethodUtils.html" title="class in org.apache.commons.lang3.reflect"><code>MethodUtils</code></a>. </p>
<h3>Known Limitations</h3> <h4>Accessing Public Constructors In A Default
Access Superclass</h4> <p>There is an issue when invoking <code>public</code> constructors
contained in a default access superclass. Reflection correctly locates these
constructors and assigns them as <code>public</code>. However, an
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/IllegalAccessException.html?is-external=true" title="class or interface in java.lang" class="externalLink"><code>IllegalAccessException</code></a> is thrown if the constructor is
invoked.</p>
<p><a href="../../../../../org/apache/commons/lang3/reflect/ConstructorUtils.html" title="class in org.apache.commons.lang3.reflect"><code>ConstructorUtils</code></a> contains a workaround for this situation: it
will attempt to call <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/AccessibleObject.html?is-external=true#setAccessible-boolean-" title="class or interface in java.lang.reflect" class="externalLink"><code>AccessibleObject.setAccessible(boolean)</code></a> on this constructor. If this
call succeeds, then the method can be invoked as normal. This call will only
succeed when the application has sufficient security privileges. If this call
fails then a warning will be logged and the method may fail.</p></div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.5</dd>
</dl>
</li>
</ul>
</div>
<div class="summary">
<ul class="blockList">
<li class="blockList">
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<ul class="blockList">
<li class="blockList"><a name="constructor.summary">
<!-- -->
</a>
<h3>Constructor Summary</h3>
<table class="memberSummary" summary="Constructor Summary table, listing constructors, and an explanation">
<caption><span>Constructors</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colFirst" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="../../../../../org/apache/commons/lang3/reflect/ConstructorUtils.html#ConstructorUtils--">ConstructorUtils</a></span>()</code></th>
<td class="colLast">
<div class="block">ConstructorUtils instances should NOT be constructed in standard
programming.</div>
</td>
</tr>
</table>
</li>
</ul>
<!-- ========== METHOD SUMMARY =========== -->
<ul class="blockList">
<li class="blockList"><a name="method.summary">
<!-- -->
</a>
<h3>Method Summary</h3>
<table class="memberSummary" summary="Method Summary table, listing methods, and an explanation">
<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>static <T> <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/Constructor.html?is-external=true" title="class or interface in java.lang.reflect" class="externalLink">Constructor</a><T></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../org/apache/commons/lang3/reflect/ConstructorUtils.html#getAccessibleConstructor-java.lang.Class-java.lang.Class...-">getAccessibleConstructor</a></span>​(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><T> cls,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><?>... parameterTypes)</code></th>
<td class="colLast">
<div class="block">Finds a constructor given a class and signature, checking accessibility.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>static <T> <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/Constructor.html?is-external=true" title="class or interface in java.lang.reflect" class="externalLink">Constructor</a><T></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../org/apache/commons/lang3/reflect/ConstructorUtils.html#getAccessibleConstructor-java.lang.reflect.Constructor-">getAccessibleConstructor</a></span>​(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/Constructor.html?is-external=true" title="class or interface in java.lang.reflect" class="externalLink">Constructor</a><T> ctor)</code></th>
<td class="colLast">
<div class="block">Checks if the specified constructor is accessible.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>static <T> <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/Constructor.html?is-external=true" title="class or interface in java.lang.reflect" class="externalLink">Constructor</a><T></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../org/apache/commons/lang3/reflect/ConstructorUtils.html#getMatchingAccessibleConstructor-java.lang.Class-java.lang.Class...-">getMatchingAccessibleConstructor</a></span>​(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><T> cls,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><?>... parameterTypes)</code></th>
<td class="colLast">
<div class="block">Finds an accessible constructor with compatible parameters.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>static <T> T</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../org/apache/commons/lang3/reflect/ConstructorUtils.html#invokeConstructor-java.lang.Class-java.lang.Object...-">invokeConstructor</a></span>​(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><T> cls,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a>... args)</code></th>
<td class="colLast">
<div class="block">Returns a new instance of the specified class inferring the right constructor
from the types of the arguments.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>static <T> T</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../org/apache/commons/lang3/reflect/ConstructorUtils.html#invokeConstructor-java.lang.Class-java.lang.Object:A-java.lang.Class:A-">invokeConstructor</a></span>​(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><T> cls,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a>[] args,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><?>[] parameterTypes)</code></th>
<td class="colLast">
<div class="block">Returns a new instance of the specified class choosing the right constructor
from the list of parameter types.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>static <T> T</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../org/apache/commons/lang3/reflect/ConstructorUtils.html#invokeExactConstructor-java.lang.Class-java.lang.Object...-">invokeExactConstructor</a></span>​(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><T> cls,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a>... args)</code></th>
<td class="colLast">
<div class="block">Returns a new instance of the specified class inferring the right constructor
from the types of the arguments.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>static <T> T</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../org/apache/commons/lang3/reflect/ConstructorUtils.html#invokeExactConstructor-java.lang.Class-java.lang.Object:A-java.lang.Class:A-">invokeExactConstructor</a></span>​(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><T> cls,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a>[] args,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><?>[] parameterTypes)</code></th>
<td class="colLast">
<div class="block">Returns a new instance of the specified class choosing the right constructor
from the list of parameter types.</div>
</td>
</tr>
</table>
<ul class="blockList">
<li class="blockList"><a name="methods.inherited.from.class.java.lang.Object">
<!-- -->
</a>
<h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang" class="externalLink">clone</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang" class="externalLink">equals</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang" class="externalLink">hashCode</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang" class="externalLink">toString</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang" class="externalLink">wait</a></code></li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
<div class="details">
<ul class="blockList">
<li class="blockList">
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<ul class="blockList">
<li class="blockList"><a name="constructor.detail">
<!-- -->
</a>
<h3>Constructor Detail</h3>
<a name="ConstructorUtils--">
<!-- -->
</a>
<ul class="blockListLast">
<li class="blockList">
<h4>ConstructorUtils</h4>
<pre>public ConstructorUtils()</pre>
<div class="block"><p>ConstructorUtils instances should NOT be constructed in standard
programming. Instead, the class should be used as
<code>ConstructorUtils.invokeConstructor(cls, args)</code>.</p>
<p>This constructor is <code>public</code> to permit tools that require a JavaBean
instance to operate.</p></div>
</li>
</ul>
</li>
</ul>
<!-- ============ METHOD DETAIL ========== -->
<ul class="blockList">
<li class="blockList"><a name="method.detail">
<!-- -->
</a>
<h3>Method Detail</h3>
<a name="invokeConstructor-java.lang.Class-java.lang.Object...-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>invokeConstructor</h4>
<pre>public static <T> T invokeConstructor​(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><T> cls,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a>... args)
throws <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/NoSuchMethodException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NoSuchMethodException</a>,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/IllegalAccessException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalAccessException</a>,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/InvocationTargetException.html?is-external=true" title="class or interface in java.lang.reflect" class="externalLink">InvocationTargetException</a>,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/InstantiationException.html?is-external=true" title="class or interface in java.lang" class="externalLink">InstantiationException</a></pre>
<div class="block"><p>Returns a new instance of the specified class inferring the right constructor
from the types of the arguments.</p>
<p>This locates and calls a constructor.
The constructor signature must match the argument types by assignment compatibility.</p></div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - the type to be constructed</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>cls</code> - the class to be constructed, not <code>null</code></dd>
<dd><code>args</code> - the array of arguments, <code>null</code> treated as empty</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>new instance of <code>cls</code>, not <code>null</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NullPointerException</a></code> - if <code>cls</code> is <code>null</code></dd>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/NoSuchMethodException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NoSuchMethodException</a></code> - if a matching constructor cannot be found</dd>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/IllegalAccessException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalAccessException</a></code> - if invocation is not permitted by security</dd>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/InvocationTargetException.html?is-external=true" title="class or interface in java.lang.reflect" class="externalLink">InvocationTargetException</a></code> - if an error occurs on invocation</dd>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/InstantiationException.html?is-external=true" title="class or interface in java.lang" class="externalLink">InstantiationException</a></code> - if an error occurs on instantiation</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../org/apache/commons/lang3/reflect/ConstructorUtils.html#invokeConstructor-java.lang.Class-java.lang.Object:A-java.lang.Class:A-"><code>invokeConstructor(java.lang.Class, java.lang.Object[], java.lang.Class[])</code></a></dd>
</dl>
</li>
</ul>
<a name="invokeConstructor-java.lang.Class-java.lang.Object:A-java.lang.Class:A-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>invokeConstructor</h4>
<pre>public static <T> T invokeConstructor​(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><T> cls,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a>[] args,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><?>[] parameterTypes)
throws <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/NoSuchMethodException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NoSuchMethodException</a>,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/IllegalAccessException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalAccessException</a>,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/InvocationTargetException.html?is-external=true" title="class or interface in java.lang.reflect" class="externalLink">InvocationTargetException</a>,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/InstantiationException.html?is-external=true" title="class or interface in java.lang" class="externalLink">InstantiationException</a></pre>
<div class="block"><p>Returns a new instance of the specified class choosing the right constructor
from the list of parameter types.</p>
<p>This locates and calls a constructor.
The constructor signature must match the parameter types by assignment compatibility.</p></div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - the type to be constructed</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>cls</code> - the class to be constructed, not <code>null</code></dd>
<dd><code>args</code> - the array of arguments, <code>null</code> treated as empty</dd>
<dd><code>parameterTypes</code> - the array of parameter types, <code>null</code> treated as empty</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>new instance of <code>cls</code>, not <code>null</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NullPointerException</a></code> - if <code>cls</code> is <code>null</code></dd>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/NoSuchMethodException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NoSuchMethodException</a></code> - if a matching constructor cannot be found</dd>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/IllegalAccessException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalAccessException</a></code> - if invocation is not permitted by security</dd>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/InvocationTargetException.html?is-external=true" title="class or interface in java.lang.reflect" class="externalLink">InvocationTargetException</a></code> - if an error occurs on invocation</dd>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/InstantiationException.html?is-external=true" title="class or interface in java.lang" class="externalLink">InstantiationException</a></code> - if an error occurs on instantiation</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/Constructor.html?is-external=true#newInstance-java.lang.Object...-" title="class or interface in java.lang.reflect" class="externalLink"><code>Constructor.newInstance(java.lang.Object...)</code></a></dd>
</dl>
</li>
</ul>
<a name="invokeExactConstructor-java.lang.Class-java.lang.Object...-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>invokeExactConstructor</h4>
<pre>public static <T> T invokeExactConstructor​(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><T> cls,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a>... args)
throws <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/NoSuchMethodException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NoSuchMethodException</a>,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/IllegalAccessException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalAccessException</a>,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/InvocationTargetException.html?is-external=true" title="class or interface in java.lang.reflect" class="externalLink">InvocationTargetException</a>,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/InstantiationException.html?is-external=true" title="class or interface in java.lang" class="externalLink">InstantiationException</a></pre>
<div class="block"><p>Returns a new instance of the specified class inferring the right constructor
from the types of the arguments.</p>
<p>This locates and calls a constructor.
The constructor signature must match the argument types exactly.</p></div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - the type to be constructed</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>cls</code> - the class to be constructed, not <code>null</code></dd>
<dd><code>args</code> - the array of arguments, <code>null</code> treated as empty</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>new instance of <code>cls</code>, not <code>null</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NullPointerException</a></code> - if <code>cls</code> is <code>null</code></dd>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/NoSuchMethodException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NoSuchMethodException</a></code> - if a matching constructor cannot be found</dd>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/IllegalAccessException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalAccessException</a></code> - if invocation is not permitted by security</dd>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/InvocationTargetException.html?is-external=true" title="class or interface in java.lang.reflect" class="externalLink">InvocationTargetException</a></code> - if an error occurs on invocation</dd>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/InstantiationException.html?is-external=true" title="class or interface in java.lang" class="externalLink">InstantiationException</a></code> - if an error occurs on instantiation</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../org/apache/commons/lang3/reflect/ConstructorUtils.html#invokeExactConstructor-java.lang.Class-java.lang.Object:A-java.lang.Class:A-"><code>invokeExactConstructor(java.lang.Class, java.lang.Object[], java.lang.Class[])</code></a></dd>
</dl>
</li>
</ul>
<a name="invokeExactConstructor-java.lang.Class-java.lang.Object:A-java.lang.Class:A-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>invokeExactConstructor</h4>
<pre>public static <T> T invokeExactConstructor​(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><T> cls,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a>[] args,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><?>[] parameterTypes)
throws <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/NoSuchMethodException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NoSuchMethodException</a>,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/IllegalAccessException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalAccessException</a>,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/InvocationTargetException.html?is-external=true" title="class or interface in java.lang.reflect" class="externalLink">InvocationTargetException</a>,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/InstantiationException.html?is-external=true" title="class or interface in java.lang" class="externalLink">InstantiationException</a></pre>
<div class="block"><p>Returns a new instance of the specified class choosing the right constructor
from the list of parameter types.</p>
<p>This locates and calls a constructor.
The constructor signature must match the parameter types exactly.</p></div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - the type to be constructed</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>cls</code> - the class to be constructed, not <code>null</code></dd>
<dd><code>args</code> - the array of arguments, <code>null</code> treated as empty</dd>
<dd><code>parameterTypes</code> - the array of parameter types, <code>null</code> treated as empty</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>new instance of <code>cls</code>, not <code>null</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NullPointerException</a></code> - if <code>cls</code> is <code>null</code></dd>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/NoSuchMethodException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NoSuchMethodException</a></code> - if a matching constructor cannot be found</dd>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/IllegalAccessException.html?is-external=true" title="class or interface in java.lang" class="externalLink">IllegalAccessException</a></code> - if invocation is not permitted by security</dd>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/InvocationTargetException.html?is-external=true" title="class or interface in java.lang.reflect" class="externalLink">InvocationTargetException</a></code> - if an error occurs on invocation</dd>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/InstantiationException.html?is-external=true" title="class or interface in java.lang" class="externalLink">InstantiationException</a></code> - if an error occurs on instantiation</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/Constructor.html?is-external=true#newInstance-java.lang.Object...-" title="class or interface in java.lang.reflect" class="externalLink"><code>Constructor.newInstance(java.lang.Object...)</code></a></dd>
</dl>
</li>
</ul>
<a name="getAccessibleConstructor-java.lang.Class-java.lang.Class...-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getAccessibleConstructor</h4>
<pre>public static <T> <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/Constructor.html?is-external=true" title="class or interface in java.lang.reflect" class="externalLink">Constructor</a><T> getAccessibleConstructor​(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><T> cls,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><?>... parameterTypes)</pre>
<div class="block"><p>Finds a constructor given a class and signature, checking accessibility.</p>
<p>This finds the constructor and ensures that it is accessible.
The constructor signature must match the parameter types exactly.</p></div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - the constructor type</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>cls</code> - the class to find a constructor for, not <code>null</code></dd>
<dd><code>parameterTypes</code> - the array of parameter types, <code>null</code> treated as empty</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the constructor, <code>null</code> if no matching accessible constructor found</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NullPointerException</a></code> - if <code>cls</code> is <code>null</code></dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true#getConstructor-java.lang.Class...-" title="class or interface in java.lang" class="externalLink"><code>Class.getConstructor(java.lang.Class<?>...)</code></a>,
<a href="../../../../../org/apache/commons/lang3/reflect/ConstructorUtils.html#getAccessibleConstructor-java.lang.reflect.Constructor-"><code>getAccessibleConstructor(java.lang.reflect.Constructor)</code></a></dd>
</dl>
</li>
</ul>
<a name="getAccessibleConstructor-java.lang.reflect.Constructor-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getAccessibleConstructor</h4>
<pre>public static <T> <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/Constructor.html?is-external=true" title="class or interface in java.lang.reflect" class="externalLink">Constructor</a><T> getAccessibleConstructor​(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/Constructor.html?is-external=true" title="class or interface in java.lang.reflect" class="externalLink">Constructor</a><T> ctor)</pre>
<div class="block"><p>Checks if the specified constructor is accessible.</p>
<p>This simply ensures that the constructor is accessible.</p></div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - the constructor type</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ctor</code> - the prototype constructor object, not <code>null</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the constructor, <code>null</code> if no matching accessible constructor found</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NullPointerException</a></code> - if <code>ctor</code> is <code>null</code></dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/SecurityManager.html?is-external=true" title="class or interface in java.lang" class="externalLink"><code>SecurityManager</code></a></dd>
</dl>
</li>
</ul>
<a name="getMatchingAccessibleConstructor-java.lang.Class-java.lang.Class...-">
<!-- -->
</a>
<ul class="blockListLast">
<li class="blockList">
<h4>getMatchingAccessibleConstructor</h4>
<pre>public static <T> <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/reflect/Constructor.html?is-external=true" title="class or interface in java.lang.reflect" class="externalLink">Constructor</a><T> getMatchingAccessibleConstructor​(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><T> cls,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><?>... parameterTypes)</pre>
<div class="block"><p>Finds an accessible constructor with compatible parameters.</p>
<p>This checks all the constructor and finds one with compatible parameters
This requires that every parameter is assignable from the given parameter types.
This is a more flexible search than the normal exact matching algorithm.</p>
<p>First it checks if there is a constructor matching the exact signature.
If not then all the constructors of the class are checked to see if their
signatures are assignment-compatible with the parameter types.
The first assignment-compatible matching constructor is returned.</p></div>
<dl>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - the constructor type</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>cls</code> - the class to find a constructor for, not <code>null</code></dd>
<dd><code>parameterTypes</code> - find method with compatible parameters</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the constructor, null if no matching accessible constructor found</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang" class="externalLink">NullPointerException</a></code> - if <code>cls</code> is <code>null</code></dd>
</dl>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</div>
<!-- ========= END OF CLASS DATA ========= -->
<!-- ======= START OF BOTTOM NAVBAR ====== -->
<div class="bottomNav"><a name="navbar.bottom">
<!-- -->
</a>
<div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation links">Skip navigation links</a></div>
<a name="navbar.bottom.firstrow">
<!-- -->
</a>
<ul class="navList" title="Navigation">
<li><a href="../../../../../overview-summary.html">Overview</a></li>
<li><a href="package-summary.html">Package</a></li>
<li class="navBarCell1Rev">Class</li>
<li><a href="class-use/ConstructorUtils.html">Use</a></li>
<li><a href="package-tree.html">Tree</a></li>
<li><a href="../../../../../deprecated-list.html">Deprecated</a></li>
<li><a href="../../../../../index-all.html">Index</a></li>
<li><a href="../../../../../help-doc.html">Help</a></li>
</ul>
</div>
<div class="subNav">
<ul class="navList">
<li>Prev Class</li>
<li><a href="../../../../../org/apache/commons/lang3/reflect/FieldUtils.html" title="class in org.apache.commons.lang3.reflect"><span class="typeNameLink">Next Class</span></a></li>
</ul>
<ul class="navList">
<li><a href="../../../../../index.html?org/apache/commons/lang3/reflect/ConstructorUtils.html" target="_top">Frames</a></li>
<li><a href="ConstructorUtils.html" target="_top">No Frames</a></li>
</ul>
<ul class="navList" id="allclasses_navbar_bottom">
<li><a href="../../../../../allclasses-noframe.html">All Classes</a></li>
</ul>
<div>
<script type="text/javascript"><!--
allClassesLink = document.getElementById("allclasses_navbar_bottom");
if(window==top) {
allClassesLink.style.display = "block";
}
else {
allClassesLink.style.display = "none";
}
//-->
</script>
<noscript>
<div>JavaScript is disabled on your browser.</div>
</noscript>
</div>
<div>
<ul class="subNavList">
<li>Summary: </li>
<li>Nested | </li>
<li>Field | </li>
<li><a href="#constructor.summary">Constr</a> | </li>
<li><a href="#method.summary">Method</a></li>
</ul>
<ul class="subNavList">
<li>Detail: </li>
<li>Field | </li>
<li><a href="#constructor.detail">Constr</a> | </li>
<li><a href="#method.detail">Method</a></li>
</ul>
</div>
<a name="skip.navbar.bottom">
<!-- -->
</a></div>
<!-- ======== END OF BOTTOM NAVBAR ======= -->
<p class="legalCopy"><small>Copyright © 2001–2018. All rights reserved.</small></p>
</body>
</html>
|