Author: markt
Date: Thu Dec  1 15:30:52 2016
New Revision: 1772231

URL: http://svn.apache.org/viewvc?rev=1772231&view=rev
Log:
Fix https://bz.apache.org/bugzilla/show_bug.cgi?id=60431
Improve handling of varargs in UEL expressions.
Based on a patch by Ben.

Added:
    tomcat/tc8.0.x/trunk/test/webapp/bug6nnnn/bug60431.jsp
      - copied unchanged from r1772229, 
tomcat/trunk/test/webapp/bug6nnnn/bug60431.jsp
Modified:
    tomcat/tc8.0.x/trunk/   (props changed)
    tomcat/tc8.0.x/trunk/java/org/apache/el/parser/AstFunction.java
    tomcat/tc8.0.x/trunk/test/org/apache/el/TestELEvaluation.java
    tomcat/tc8.0.x/trunk/test/org/apache/el/TestELInJsp.java
    tomcat/tc8.0.x/trunk/test/org/apache/el/TesterFunctions.java
    tomcat/tc8.0.x/trunk/test/webapp/WEB-INF/test.tld
    tomcat/tc8.0.x/trunk/webapps/docs/changelog.xml

Propchange: tomcat/tc8.0.x/trunk/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Thu Dec  1 15:30:52 2016
@@ -1,2 +1,2 @@
 
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592,1657607,1657609,1657682,1657907,1658207,1658734,1658781,1658790,1658799,1658802,1658804,1658833,1658840,1658966,1659043,1659053,1659059,1659174,1659184,1659188-1659189,1659216,1659263,1659293,1659304,1659306-1659307,1659382,1659384,1659428,1659471,1659486,1659505,1659516,1659521,1659524,1659559,1659562,1659803,1659806,1659814,1659833,1659862,1659905,1659919,1659948,1659967,1659983-1659984,1660060,1660074,1660077,1660133,1660168,1660331-1660332,1660353,1660358,1660924,1661386,1661770,1661867,1661972,1661990,1662200,1662308-1662309,1662548,1662614,1662696,1662736,1662985,1662988-1662989,1663264,1663277,1663298,1663534,1663562,1663676,1663715,1663754,1663768,1663772,1663781,1663893,1663995,1664143,1664163,1664174,1664301,1664317,1664347,1664657,1664659,1664710,1664863-1664864,1664866,1665085,1665292,1665559,1665653,1665661,1665672,1665694,1665697,1665736,1665779,1665976-1665977,1665980-1665981,1665985-1665986,1665989,1665998,1666004,1666008,1666013,1666017,1666024,1666116,1666386-1
 
666387,1666494,1666496,1666552,1666569,1666579,1666637,1666649,1666757,1666966,1666972,1666985,1666995,1666997,1667292,1667402,1667406,1667546,1667615,1667630,1667636,1667688,1667764,1667871,1668026,1668135,1668193,1668593,1668596,1668630,1668639,1668843,1669353,1669370,1669451,1669800,1669838,1669876,1669882,1670394,1670433,1670591,1670598-1670600,1670610,1670631,1670719,1670724,1670726,1670730,1670940,1671112,1672272,1672284,1673754,1674294,1675461,1675486,1675594,1675830,1676231,1676250-1676251,1676364,1676381,1676393,1676479,1676525,1676552,1676615,1676630,1676634,1676721,1676926,1676943,1677140,1677802,1678011,1678162,1678174,1678339,1678426-1678427,1678694,1678701,1679534,1679708,1679710,1679716,1680034,1680246,1681056,1681123,1681138,1681280,1681283,1681286,1681450,1681697,1681699,1681701,1681729,1681770,1681779,1681793,1681807,1681837-1681838,1681854,1681862,1681958,1682028,1682033,1682311,1682315,1682317,1682320,1682324,1682330,1682842,1684172,1684366,1684383,1684526-168452
 
7,1684549-1684550,1685556,1685591,1685739,1685744,1685772,1685816,1685826,1685891,1687242,1687261,1687268,1687340,1687544,1687551,1688563,1688841,1688878,1688885,1688896,1688901,1689345-1689346,1689357,1689656,1689675-1689677,1689679,1689687,1689825,1689856,1689918,1690011,1690021,1690054,1690080,1690209,1691134,1691487,1691813,1692744-1692747,1692849,1692894,1692896,1693088,1693105,1693429,1693461,1694058,1694111,1694290,1694501,1694548,1694658,1694660,1694788,1694872,1694878,1695006,1695354,1695371,1695379,1695459,1695582,1695706,1695778,1696199,1696272,1696280,1696366-1696368,1696378,1696390,1696392,1696467,1698212,1698220,1700607,1700870,1700896,1700977,1701093,1701123,1701213,1701607,1701666,1701673,1701760-1701761,1701765,1701940,1702092,1702183,1702244,1702246,1702250,1702268,1702313,1702531,1702630-1702635,1702637-1702638,1702640,1702647,1702660,1702662,1702665-1702666,1702668,1702671-1702673,1702675-1702676,1702680,1702722,1702778,1702795,1702862,1702881,1702886,1702910,170
 
2923,1702971,1702984,1703024,1703040,1703044,1703049-1703050,1703143,1703146,1703151,1703160,1703164,1703167,1703174,1703192,1703287,1703290,1703358,1703408,1703486,1703509,1703523,1703542,1703545,1703554,1703584,1703673,1703676,1703678,1703680,1703763,1703784,1703821,1703842,1703849,1703851,1703853,1703856,1703860,1703865,1703890,1703948,1704149,1704151,1704251,1704278,1704289,1704302,1704305,1704307,1704318,1704331,1704647,1704658,1704689,1704702,1704706,1704711,1704730-1704733,1704735,1704739,1704741-1704742,1704744,1704786,1704867,1705231,1705630,1705635,1705639,1705647,1705650-1705652,1705842,1705848,1705865-1705866,1705942,1706017,1706744-1706745,1706853,1706915,1707052,1707088,1708500-1708501,1708504-1708505,1708570,1708649,1708687,1708745,1708957,1709120,1709266,1709295,1709375,1709663,1709895,1709960,1710070,1710134,1710341,1710346,1710441,1710445,1710489,1710517,1710523,1710571,1710577,1710632,1710676,1710689,1710753-1710754,1710779,1710924,1710930,1710933,1710945,1711006,
 
1711016,1711022,1711026,1712163,1712225,1712228,1712233,1712250,1712254,1712489,1712547-1712548,1712588,1712617,1712645,1712654,1712695,1712765-1712766,1712771,1712775,1712859,1712876,1712898,1712902,1712905,1712912,1712974,1713129,1713168,1713184,1713285,1713362,1713397,1713446,1713612,1713618,1713871,1713931,1713975,1713987,1713992,1713997,1714002,1714012,1714019,1714054,1714521,1714535,1714537,1715168,1715188,1715206,1715413,1715415,1715434,1715510-1715512,1715514-1715515,1715517-1715519,1715521,1715633,1715661,1715682,1715965,1716213-1716214,1716258,1716269,1716347,1716354,1716364,1716413,1716420,1716511,1716543,1716640,1716644,1716856,1716858,1716881-1716882,1716886,1716894,1717085,1717225,1717233,1717252,1717264,1717282,1717286,1717290,1717385,1717416,1717418,1717445,1717515,1717520,1717528,1717965,1717967-1717968,1717979,1718022,1718308,1718523,1718794,1718796,1718834,1718836-1718838,1719278,1719291,1719315,1719332,1719334,1719340,1719346,1719441,1719446,1719488,1719909-17199
 
10,1720200,1720234,1720394,1720439,1720445,1720448,1720462,1720506,1720652,1720654-1720655,1720711,1720752,1720769,1720776,1720804,1720815,1721303,1721307,1721311,1721314,1721447,1721528,1721539,1721812,1721817,1721830,1721860,1721866,1721881,1721887,1722205,1722292,1722399,1722453,1722455,1722522,1722526,1722532,1722548,1722574,1722583,1722585,1722799,1722807,1722824,1722828-1722829,1722831,1722859,1722902,1722905,1722923,1722939,1722945,1722996,1723068,1723127,1723155,1723250,1723316-1723318,1723368,1723371,1723375,1723377,1723380,1723410,1723414,1723437,1723484,1723486,1723493-1723494,1723500,1723552,1723554,1723683,1723707,1723736,1724012,1724232,1724252,1724325,1724427-1724428,1724433,1724673,1724788,1724863,1724900,1724997,1725113,1725126-1725127,1725150,1725165,1725183,1725199,1725202,1725204,1725207,1725263-1725264,1725266,1725278,1725282,1725405,1725599,1725601,1725635,1725646,1725649-1725652,1725694,1725696-1725697,1725816,1725851,1725906-1725907,1725910,1725914,1725920,17
 
25926,1726177,1726202,1726628,1726632,1726637,1726639,1726648,1726651,1726654,1726669,1726676,1726803,1726925-1726926,1726972-1726973,1726991,1727162,1727670,1727675,1727899,1727914,1727917,1728091,1728138,1728433,1728448,1728664,1728677,1729185,1729361,1729625,1729730,1730101-1730102,1730137,1730612,1730946-1730975,1731008,1731055,1731079,1731283,1731856,1731882,1731946-1731958,1731976-1731983,1732359,1732488,1732900-1733448,1733602,1733617-1733963,1733978,1734113,1734128,1734192,1734258,1734301,1734418-1734454,1734466-1734512,1734522,1734592,1734594,1734597,1735041,1735577,1736162,1736209,1736280,1736646,1736836,1737119,1737280,1737339,1737632,1737664,1737715,1737834,1737903,1737959,1738014-1738015,1738018,1738022,1738039,1738043,1738059-1738060,1738147,1738149,1738174-1738175,1738643,1738850,1738982,1738996,1739079-1739081,1739087,1739113,1739153,1739172,1739176,1739474,1739726,1739762,1739775,1739814,1739817-1739818,1739975,1740131,1740324,1740465,1740509,1740520,1740535,1740707
 
,1740803,1740810,1740980,1740991,1741015,1741147,1741173,1741181,1741190,1741202,1741208,1741213,1741221,1741225,1741232,1741409,1741677,1741892,1741896,1742071,1742090,1742093,1742101,1742105,1742111,1742146,1742166,1742181,1742184,1742187,1742246,1742248-1742251,1742263-1742264,1742268,1742276,1742369,1742387,1742448,1742919,1742975,1742984,1742986,1743117,1743124-1743125,1743134,1743425,1743554,1743679,1743696-1743697,1743700-1743701,1744058,1744064-1744065,1744125,1744194,1744229,1744270,1744323,1744432,1744684,1744697,1744705,1744760,1745227,1745337,1746306,1746427,1746473,1746620,1746649,1746724,1746939,1746989,1747536,1747924,1748001,1748547,1748629,1748715,1749287,1749328,1749665-1749666,1750015,1750056,1750899,1750975,1750995,1751061,1751097,1752212,1752737,1753078,1753080,1753358,1753363,1754111,1754140-1754141,1754281,1754310,1754445,1754467,1754494,1754496,1754528,1754532-1754533,1754613,1754714,1754874,1754941,1754944,1754950-1754951,1755214,1755224,1755230,1755646-1755
 
647,1755650,1755675,1755693,1755717,1755884,1755890,1755918-1755919,1755942,1756013,1756019,1756039,1756408,1756410,1756898,1756939,1757123-1757124,1757126,1757128,1757132-1757133,1757167-1757168,1757175,1757180,1757182,1757195,1757271,1757278,1757347,1757353-1757354,1757363,1757374,1757399,1757406,1757408,1757495,1757499,1757527,1757997,1758072-1758075,1758078-1758079,1758292,1758369,1758423,1758425-1758427,1758430,1758486-1758487,1758499,1758556,1758582,1758584,1758588,1758842,1759019,1759224,1759227,1759252,1759274,1759513-1759516,1759611,1760022,1760300,1760397,1760446,1760454,1760640,1760648,1761057,1761491,1761498,1761500-1761501,1761550,1761625-1761626,1761628,1761682,1761740,1762123,1762168,1762172,1762182,1762202,1762288,1762296,1762348,1762353,1762374,1762541,1762608,1762710,1762766,1762769,1762944,1762947,1762953,1763167,1763179,1763232,1763259,1763271-1763272,1763276,1763319,1763370,1763372,1763375,1763377,1763393,1763412,1763430,1763512,1763574,1763634-1763635,1763718,1
 
763786,1763798-1763799,1764083,1764659,1764682,1764897,1765299,1765358,1765439,1765571,1766276,1766514,1767328,1767362,1767368,1767429,1767471,1767505,1767641-1767644,1768651,1768762,1768922,1769263,1770140,1770180,1770258,1770656,1770666,1770718,1770762,1771087,1771139,1771386,1771711,1771718,1771723-1771724,1771743,1771963,1772174,1772223,1772229

Modified: tomcat/tc8.0.x/trunk/java/org/apache/el/parser/AstFunction.java
URL: 
http://svn.apache.org/viewvc/tomcat/tc8.0.x/trunk/java/org/apache/el/parser/AstFunction.java?rev=1772231&r1=1772230&r2=1772231&view=diff
==============================================================================
--- tomcat/tc8.0.x/trunk/java/org/apache/el/parser/AstFunction.java (original)
+++ tomcat/tc8.0.x/trunk/java/org/apache/el/parser/AstFunction.java Thu Dec  1 
15:30:52 2016
@@ -163,13 +163,18 @@ public final class AstFunction extends S
         Object result = null;
         int inputParameterCount = parameters.jjtGetNumChildren();
         int methodParameterCount = paramTypes.length;
-        if (inputParameterCount > 0) {
+        if (inputParameterCount == 0 && methodParameterCount == 1 && 
m.isVarArgs()) {
+            params = new Object[] { null };
+        } else if (inputParameterCount > 0) {
             params = new Object[methodParameterCount];
             try {
                 for (int i = 0; i < methodParameterCount; i++) {
                     if (m.isVarArgs() && i == methodParameterCount - 1) {
                         if (inputParameterCount < methodParameterCount) {
-                            params[i] = null;
+                            params[i] = new Object[] { null };
+                        } else if (inputParameterCount == methodParameterCount 
&&
+                                paramTypes[i].isArray()) {
+                            params[i] = 
parameters.jjtGetChild(i).getValue(ctx);
                         } else {
                             Object[] varargs =
                                     new Object[inputParameterCount - 
methodParameterCount + 1];
@@ -179,12 +184,11 @@ public final class AstFunction extends S
                                 varargs[j-i] = coerceToType(ctx, varargs[j-i], 
target);
                             }
                             params[i] = varargs;
-                            params[i] = coerceToType(ctx, params[i], 
paramTypes[i]);
                         }
                     } else {
                         params[i] = parameters.jjtGetChild(i).getValue(ctx);
-                        params[i] = coerceToType(ctx, params[i], 
paramTypes[i]);
                     }
+                    params[i] = coerceToType(ctx, params[i], paramTypes[i]);
                 }
             } catch (ELException ele) {
                 throw new ELException(MessageFactory.get("error.function", this

Modified: tomcat/tc8.0.x/trunk/test/org/apache/el/TestELEvaluation.java
URL: 
http://svn.apache.org/viewvc/tomcat/tc8.0.x/trunk/test/org/apache/el/TestELEvaluation.java?rev=1772231&r1=1772230&r2=1772231&view=diff
==============================================================================
--- tomcat/tc8.0.x/trunk/test/org/apache/el/TestELEvaluation.java (original)
+++ tomcat/tc8.0.x/trunk/test/org/apache/el/TestELEvaluation.java Thu Dec  1 
15:30:52 2016
@@ -231,6 +231,30 @@ public class TestELEvaluation {
         Assert.assertEquals("$2", evaluateExpression("$#{1+1}"));
     }
 
+    @Test
+    public void testBug60431a() {
+        Assert.assertEquals("OK", evaluateExpression("${fn:concat('O','K')}"));
+    }
+
+    @Test
+    public void testBug60431b() {
+        Assert.assertEquals("OK", 
evaluateExpression("${fn:concat(fn:toArray('O','K'))}"));
+    }
+
+    @Test
+    public void testBug60431c() {
+        Assert.assertEquals("", evaluateExpression("${fn:concat()}"));
+    }
+
+    @Test
+    public void testBug60431d() {
+        Assert.assertEquals("OK", evaluateExpression("${fn:concat2('OK')}"));
+    }
+
+    @Test
+    public void testBug60431e() {
+        Assert.assertEquals("RUOK", evaluateExpression("${fn:concat2('RU', 
fn:toArray('O','K'))}"));
+    }
 
     // ************************************************************************
 

Modified: tomcat/tc8.0.x/trunk/test/org/apache/el/TestELInJsp.java
URL: 
http://svn.apache.org/viewvc/tomcat/tc8.0.x/trunk/test/org/apache/el/TestELInJsp.java?rev=1772231&r1=1772230&r2=1772231&view=diff
==============================================================================
--- tomcat/tc8.0.x/trunk/test/org/apache/el/TestELInJsp.java (original)
+++ tomcat/tc8.0.x/trunk/test/org/apache/el/TestELInJsp.java Thu Dec  1 
15:30:52 2016
@@ -499,6 +499,17 @@ public class TestELInJsp extends TomcatB
     }
 
 
+    @Test
+    public void testBug60431() throws Exception {
+        getTomcatInstanceTestWebapp(false, true);
+
+        ByteChunk res = getUrl("http://localhost:"; + getPort() + 
"/test/bug6nnnn/bug60431.jsp");
+        String result = res.toString();
+        assertEcho(result, "01-OK");
+        assertEcho(result, "02-OK");
+    }
+
+
     // Assertion for text contained with <p></p>, e.g. printed by tags:echo
     private static void assertEcho(String result, String expected) {
         Assert.assertTrue(result, result.indexOf("<p>" + expected + "</p>") > 
0);

Modified: tomcat/tc8.0.x/trunk/test/org/apache/el/TesterFunctions.java
URL: 
http://svn.apache.org/viewvc/tomcat/tc8.0.x/trunk/test/org/apache/el/TesterFunctions.java?rev=1772231&r1=1772230&r2=1772231&view=diff
==============================================================================
--- tomcat/tc8.0.x/trunk/test/org/apache/el/TesterFunctions.java (original)
+++ tomcat/tc8.0.x/trunk/test/org/apache/el/TesterFunctions.java Thu Dec  1 
15:30:52 2016
@@ -37,6 +37,18 @@ public class TesterFunctions {
         return result.toString();
     }
 
+    public static String concat2(String prefix, String... inputs) {
+        StringBuilder result = new StringBuilder(prefix);
+        for (String input : inputs) {
+            result.append(input);
+        }
+        return result.toString();
+    }
+
+    public static String[] toArray(String a, String b) {
+        return new String[] { a, b };
+    }
+
 
     public static class Inner$Class {
 
@@ -58,6 +70,36 @@ public class TesterFunctions {
                     return m;
                 } catch (SecurityException e) {
                     // Ignore
+                } catch (NoSuchMethodException e) {
+                    // Ignore
+                }
+            } else if ("concat".equals(localName)) {
+                Method m;
+                try {
+                    m = TesterFunctions.class.getMethod("concat", 
String[].class);
+                    return m;
+                } catch (SecurityException e) {
+                    // Ignore
+                } catch (NoSuchMethodException e) {
+                    // Ignore
+                }
+            } else if ("concat2".equals(localName)) {
+                Method m;
+                try {
+                    m = TesterFunctions.class.getMethod("concat2", 
String.class, String[].class);
+                    return m;
+                } catch (SecurityException e) {
+                    // Ignore
+                } catch (NoSuchMethodException e) {
+                    // Ignore
+                }
+            } else if ("toArray".equals(localName)) {
+                Method m;
+                try {
+                    m = TesterFunctions.class.getMethod("toArray", 
String.class, String.class);
+                    return m;
+                } catch (SecurityException e) {
+                    // Ignore
                 } catch (NoSuchMethodException e) {
                     // Ignore
                 }

Modified: tomcat/tc8.0.x/trunk/test/webapp/WEB-INF/test.tld
URL: 
http://svn.apache.org/viewvc/tomcat/tc8.0.x/trunk/test/webapp/WEB-INF/test.tld?rev=1772231&r1=1772230&r2=1772231&view=diff
==============================================================================
--- tomcat/tc8.0.x/trunk/test/webapp/WEB-INF/test.tld (original)
+++ tomcat/tc8.0.x/trunk/test/webapp/WEB-INF/test.tld Thu Dec  1 15:30:52 2016
@@ -40,4 +40,12 @@
     </function-signature>
   </function>
 
+  <function>
+    <name>toArray</name>
+    <function-class>org.apache.el.TesterFunctions</function-class>
+    <function-signature>
+      java.lang.String toArray(java.lang.String,java.lang.String)
+    </function-signature>
+  </function>
+
 </taglib>
\ No newline at end of file

Modified: tomcat/tc8.0.x/trunk/webapps/docs/changelog.xml
URL: 
http://svn.apache.org/viewvc/tomcat/tc8.0.x/trunk/webapps/docs/changelog.xml?rev=1772231&r1=1772230&r2=1772231&view=diff
==============================================================================
--- tomcat/tc8.0.x/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/tc8.0.x/trunk/webapps/docs/changelog.xml Thu Dec  1 15:30:52 2016
@@ -115,6 +115,14 @@
       </fix>
     </changelog>
   </subsection>
+  <subsection name="Jasper">
+    <changelog>
+      <fix>
+        <bug>60431</bug>: Improve handling of varargs in UEL expressions. Based
+        on a patch by Ben. (markt)
+      </fix>
+    </changelog>
+  </subsection>
   <subsection name="Web applications">
     <changelog>
       <fix>



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