Author: markt
Date: Fri Dec 8 13:11:10 2017
New Revision: 1817495
URL: http://svn.apache.org/viewvc?rev=1817495&view=rev
Log:
Improve the handling of methods with varargs in EL expressions. In particular,
the calling of a varargs method with no parameters now works correctly.
Based on a patch by Nitkalya (Ing) Wiriyanuparb.
Modified:
tomcat/trunk/java/javax/el/Util.java
tomcat/trunk/java/org/apache/el/util/ReflectionUtil.java
tomcat/trunk/test/javax/el/TestBeanELResolver.java
tomcat/trunk/test/javax/el/TesterBean.java
tomcat/trunk/test/org/apache/el/TestMethodExpressionImpl.java
tomcat/trunk/webapps/docs/changelog.xml
Modified: tomcat/trunk/java/javax/el/Util.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/java/javax/el/Util.java?rev=1817495&r1=1817494&r2=1817495&view=diff
==============================================================================
--- tomcat/trunk/java/javax/el/Util.java (original)
+++ tomcat/trunk/java/javax/el/Util.java Fri Dec 8 13:11:10 2017
@@ -38,6 +38,7 @@ import java.util.concurrent.locks.Reentr
class Util {
private static final Class<?>[] EMPTY_CLASS_ARRAY = new Class<?>[0];
+ private static final Object[] EMPTY_OBJECT_ARRAY = new Object[0];
/**
* Checks whether the supplied Throwable is one that needs to be
@@ -237,11 +238,29 @@ class Util {
}
// Check the number of parameters
- if (!(paramCount == mParamCount ||
- (w.isVarArgs() && paramCount >= mParamCount))) {
+ // Multiple tests to improve readability
+ if (!w.isVarArgs() && paramCount != mParamCount) {
// Method has wrong number of parameters
continue;
}
+ if (w.isVarArgs() && paramCount < mParamCount -1) {
+ // Method has wrong number of parameters
+ continue;
+ }
+ if (w.isVarArgs() && paramCount == mParamCount && paramValues !=
null &&
+ paramValues.length > paramCount && !paramTypes[mParamCount
-1].isArray()) {
+ // Method arguments don't match
+ continue;
+ }
+ if (w.isVarArgs() && paramCount > mParamCount && paramValues !=
null &&
+ paramValues.length != paramCount) {
+ // Number of parameter types and values do not agree
+ throw new IllegalArgumentException();
+ }
+ if (!w.isVarArgs() && paramValues != null && paramCount !=
paramValues.length) {
+ // Number of parameter types and values do not agree
+ throw new IllegalArgumentException();
+ }
// Check the parameters match
int exactMatch = 0;
@@ -250,9 +269,12 @@ class Util {
boolean noMatch = false;
for (int i = 0; i < mParamCount; i++) {
// Can't be null
- if (mParamTypes[i].equals(paramTypes[i])) {
- exactMatch++;
- } else if (i == (mParamCount - 1) && w.isVarArgs()) {
+ if (w.isVarArgs() && i == (mParamCount - 1)) {
+ if (i == paramCount && paramCount == (mParamCount - 1)) {
+ // Nothing is passed as varargs
+ assignableMatch++;
+ break;
+ }
Class<?> varType = mParamTypes[i].getComponentType();
for (int j = i; j < paramCount; j++) {
if (isAssignableFrom(paramTypes[j], varType)) {
@@ -274,18 +296,22 @@ class Util {
// lead to a varArgs method matching when the result
// should be ambiguous
}
- } else if (isAssignableFrom(paramTypes[i], mParamTypes[i])) {
- assignableMatch++;
} else {
- if (paramValues == null) {
- noMatch = true;
- break;
+ if (mParamTypes[i].equals(paramTypes[i])) {
+ exactMatch++;
+ } else if (paramTypes[i] != null &&
isAssignableFrom(paramTypes[i], mParamTypes[i])) {
+ assignableMatch++;
} else {
- if (isCoercibleFrom(paramValues[i], mParamTypes[i])) {
- coercibleMatch++;
- } else {
+ if (paramValues == null) {
noMatch = true;
break;
+ } else {
+ if (isCoercibleFrom(paramValues[i],
mParamTypes[i])) {
+ coercibleMatch++;
+ } else {
+ noMatch = true;
+ break;
+ }
}
}
}
@@ -595,7 +621,11 @@ class Util {
Object[] parameters = null;
if (parameterTypes.length > 0) {
parameters = new Object[parameterTypes.length];
- int paramCount = params.length;
+ int paramCount;
+ if (params == null) {
+ params = EMPTY_OBJECT_ARRAY;
+ }
+ paramCount = params.length;
if (isVarArgs) {
int varArgIndex = parameterTypes.length - 1;
// First argCount-1 parameters are standard
Modified: tomcat/trunk/java/org/apache/el/util/ReflectionUtil.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/el/util/ReflectionUtil.java?rev=1817495&r1=1817494&r2=1817495&view=diff
==============================================================================
--- tomcat/trunk/java/org/apache/el/util/ReflectionUtil.java (original)
+++ tomcat/trunk/java/org/apache/el/util/ReflectionUtil.java Fri Dec 8
13:11:10 2017
@@ -129,6 +129,7 @@ public class ReflectionUtil {
public static Method getMethod(EvaluationContext ctx, Object base, Object
property,
Class<?>[] paramTypes, Object[] paramValues)
throws MethodNotFoundException {
+
if (base == null || property == null) {
throw new MethodNotFoundException(MessageFactory.get(
"error.method.notfound", base, property,
@@ -163,11 +164,29 @@ public class ReflectionUtil {
}
// Check the number of parameters
- if (!(paramCount == mParamCount ||
- (m.isVarArgs() && paramCount >= mParamCount))) {
+ // Multiple tests to improve readability
+ if (!m.isVarArgs() && paramCount != mParamCount) {
// Method has wrong number of parameters
continue;
}
+ if (m.isVarArgs() && paramCount < mParamCount -1) {
+ // Method has wrong number of parameters
+ continue;
+ }
+ if (m.isVarArgs() && paramCount == mParamCount && paramValues !=
null &&
+ paramValues.length > paramCount && !paramTypes[mParamCount
-1].isArray()) {
+ // Method arguments don't match
+ continue;
+ }
+ if (m.isVarArgs() && paramCount > mParamCount && paramValues !=
null &&
+ paramValues.length != paramCount) {
+ // Number of parameter types and values do not agree
+ throw new IllegalArgumentException();
+ }
+ if (!m.isVarArgs() && paramValues != null && paramCount !=
paramValues.length) {
+ // Number of parameter types and values do not agree
+ throw new IllegalArgumentException();
+ }
// Check the parameters match
int exactMatch = 0;
@@ -176,15 +195,18 @@ public class ReflectionUtil {
boolean noMatch = false;
for (int i = 0; i < mParamCount; i++) {
// Can't be null
- if (mParamTypes[i].equals(paramTypes[i])) {
- exactMatch++;
- } else if (i == (mParamCount - 1) && m.isVarArgs()) {
+ if (m.isVarArgs() && i == (mParamCount - 1)) {
+ if (i == paramCount && paramCount == (mParamCount - 1)) {
+ // Nothing is passed as varargs
+ assignableMatch++;
+ break;
+ }
Class<?> varType = mParamTypes[i].getComponentType();
for (int j = i; j < paramCount; j++) {
if (isAssignableFrom(paramTypes[j], varType)) {
assignableMatch++;
} else {
- if (paramValues == null || j >=
paramValues.length) {
+ if (paramValues == null) {
noMatch = true;
break;
} else {
@@ -200,18 +222,22 @@ public class ReflectionUtil {
// lead to a varArgs method matching when the result
// should be ambiguous
}
- } else if (isAssignableFrom(paramTypes[i], mParamTypes[i])) {
- assignableMatch++;
} else {
- if (paramValues == null || i >= paramValues.length) {
- noMatch = true;
- break;
+ if (mParamTypes[i].equals(paramTypes[i])) {
+ exactMatch++;
+ } else if (paramTypes[i] != null &&
isAssignableFrom(paramTypes[i], mParamTypes[i])) {
+ assignableMatch++;
} else {
- if (isCoercibleFrom(ctx, paramValues[i],
mParamTypes[i])) {
- coercibleMatch++;
- } else {
+ if (paramValues == null) {
noMatch = true;
break;
+ } else {
+ if (isCoercibleFrom(ctx, paramValues[i],
mParamTypes[i])) {
+ coercibleMatch++;
+ } else {
+ noMatch = true;
+ break;
+ }
}
}
}
@@ -527,5 +553,4 @@ public class ReflectionUtil {
;
}
}
-
}
Modified: tomcat/trunk/test/javax/el/TestBeanELResolver.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/test/javax/el/TestBeanELResolver.java?rev=1817495&r1=1817494&r2=1817495&view=diff
==============================================================================
--- tomcat/trunk/test/javax/el/TestBeanELResolver.java (original)
+++ tomcat/trunk/test/javax/el/TestBeanELResolver.java Fri Dec 8 13:11:10 2017
@@ -18,6 +18,7 @@ package javax.el;
import java.beans.FeatureDescriptor;
import java.beans.PropertyDescriptor;
+import java.util.ArrayList;
import java.util.Iterator;
import org.junit.Assert;
@@ -457,6 +458,486 @@ public class TestBeanELResolver {
new Object[] {});
}
+ @Test
+ public void testInvokeVarargsCoerce01() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] {}, new String[] {});
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargsCoerce02() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ null, null);
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargsCoerce03() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ null, new String[] {});
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargsCoerce04() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] {}, null);
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargsCoerce05() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { null }, new String[] { null });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargsCoerce06() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ null, new String[] { null });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargsCoerce07() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { null }, null);
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargsCoerce08() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { String.class }, new String[] { "true" });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargsCoerce09() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { String.class, String.class }, new Object[] {
"true", null });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargsCoerce10() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { String.class, String[].class }, new Object[]
{ "true", null });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargsCoerce11() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { String.class }, new Object[] { "10" });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargsCoerce12() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { String[].class }, new String[] { "10" });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ // Ambiguous because the Strings coerce to both Boolean and Integer hence
+ // both varargs methods match.
+ @Test(expected=MethodNotFoundException.class)
+ public void testInvokeVarargsCoerce13() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { String.class, String.class }, new String[] {
"10", "11" });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargsCoerce14() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { String.class, String.class }, new String[] {
"true", null });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test(expected=MethodNotFoundException.class)
+ public void testInvokeVarargsCoerce15() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { String.class, String.class }, new Object[] {
"true", new ArrayList<>() });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ // Ambiguous because the Strings coerce to both Boolean and Integer hence
+ // both varargs methods match.
+ @Test(expected=MethodNotFoundException.class)
+ public void testInvokeVarargsCoerce16() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { String.class, String.class, String.class },
+ new Object[] { "10", "11", "12" });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test(expected=IllegalArgumentException.class)
+ public void testInvokeVarargsCoerce17() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { String.class, String.class },
+ new Object[] { "10", "11", "12" });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test(expected=IllegalArgumentException.class)
+ public void testInvokeVarargsCoerce18() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { String.class, String.class, String.class,
String.class },
+ new Object[] { "10", "11", "12" });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargsCoerce19() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { String.class, String.class, String.class,
String.class },
+ new Object[] { "true", "10", "11", "12" });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test(expected=IllegalArgumentException.class)
+ public void testInvokeVarargsCoerce20() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { String.class, String.class, String.class },
+ new Object[] { "true", "10", "11", "12" });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test(expected=IllegalArgumentException.class)
+ public void testInvokeVarargsCoerce21() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { String.class, String.class, String.class,
String.class, String.class },
+ new Object[] { "true", "10", "11", "12" });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargs01() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] {}, new Object[] {});
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargs02() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ null, null);
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargs03() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ null, new Object[] {});
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargs04() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] {}, null);
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargs05() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { null }, new Object[] { null });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargs06() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ null, new Object[] { null });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargs07() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { null }, null);
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargs08() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { Boolean.class }, new Object[] { Boolean.TRUE
});
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargs09() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { Boolean.class, Integer.class }, new Object[]
{ Boolean.TRUE, null });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargs10() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { Boolean.class, Integer[].class }, new
Object[] { Boolean.TRUE, null });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargs11() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { Integer.class }, new Object[] {
Integer.valueOf(10) });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargs12() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { Integer[].class }, new Object[] {
Integer.valueOf(10) });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargs13() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { Integer.class, Integer.class }, new Object[]
{ Integer.valueOf(10), Integer.valueOf(11) });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ // Note: The coercion rules are that a null of any type can be coerced to a
+ // null of *any* other type so this works.
+ @Test
+ public void testInvokeVarargs14() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { Boolean.class, ArrayList.class }, new
Object[] { Boolean.TRUE, null });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test(expected=MethodNotFoundException.class)
+ public void testInvokeVarargs15() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { Boolean.class, ArrayList.class }, new
Object[] { Boolean.TRUE, new ArrayList<>() });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargs16() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { Integer.class, Integer.class, Integer.class },
+ new Object[] { Integer.valueOf(10), Integer.valueOf(11),
Integer.valueOf(12) });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test(expected=IllegalArgumentException.class)
+ public void testInvokeVarargs17() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { Integer.class, Integer.class },
+ new Object[] { Integer.valueOf(10), Integer.valueOf(11),
Integer.valueOf(12) });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test(expected=IllegalArgumentException.class)
+ public void testInvokeVarargs18() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { Integer.class, Integer.class, Integer.class,
Integer.class },
+ new Object[] { Integer.valueOf(10), Integer.valueOf(11),
Integer.valueOf(12) });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test
+ public void testInvokeVarargs19() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { Boolean.class, Integer.class, Integer.class,
Integer.class },
+ new Object[] { Boolean.TRUE, Integer.valueOf(10),
Integer.valueOf(11), Integer.valueOf(12) });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test(expected=IllegalArgumentException.class)
+ public void testInvokeVarargs20() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { Boolean.class, Integer.class, Integer.class },
+ new Object[] { Boolean.TRUE, Integer.valueOf(10),
Integer.valueOf(11), Integer.valueOf(12) });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
+ @Test(expected=IllegalArgumentException.class)
+ public void testInvokeVarargs21() {
+ BeanELResolver resolver = new BeanELResolver();
+ ELContext context = new
StandardELContext(ELManager.getExpressionFactory());
+
+ Object result = resolver.invoke(context, new TesterBean(BEAN_NAME),
"getNameVarargs",
+ new Class<?>[] { Boolean.class, Integer.class, Integer.class,
Integer.class, Integer.class },
+ new Object[] { Boolean.TRUE, Integer.valueOf(10),
Integer.valueOf(11), Integer.valueOf(12) });
+
+ Assert.assertEquals(BEAN_NAME, result);
+ }
+
private static class Bean {
@SuppressWarnings("unused")
Modified: tomcat/trunk/test/javax/el/TesterBean.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/test/javax/el/TesterBean.java?rev=1817495&r1=1817494&r2=1817495&view=diff
==============================================================================
--- tomcat/trunk/test/javax/el/TesterBean.java (original)
+++ tomcat/trunk/test/javax/el/TesterBean.java Fri Dec 8 13:11:10 2017
@@ -29,6 +29,15 @@ public class TesterBean {
return name;
}
+ public String getNameVarargs(@SuppressWarnings("unused") Integer...
someNumbers) {
+ return name;
+ }
+
+ public String getNameVarargs(@SuppressWarnings("unused") Boolean
someBoolean,
+ @SuppressWarnings("unused") Integer... someNumbers) {
+ return name;
+ }
+
public void setName(String name) {
this.name = name;
}
Modified: tomcat/trunk/test/org/apache/el/TestMethodExpressionImpl.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/test/org/apache/el/TestMethodExpressionImpl.java?rev=1817495&r1=1817494&r2=1817495&view=diff
==============================================================================
--- tomcat/trunk/test/org/apache/el/TestMethodExpressionImpl.java (original)
+++ tomcat/trunk/test/org/apache/el/TestMethodExpressionImpl.java Fri Dec 8
13:11:10 2017
@@ -20,6 +20,7 @@ package org.apache.el;
import javax.el.ELContext;
import javax.el.ExpressionFactory;
import javax.el.MethodExpression;
+import javax.el.MethodNotFoundException;
import javax.el.ValueExpression;
import org.junit.Assert;
@@ -519,7 +520,8 @@ public class TestMethodExpressionImpl {
Object r = me.invoke(context, new String[] { "aaa" });
Assert.assertEquals("aaa", r.toString());
}
- @Test
+
+ @Test(expected=MethodNotFoundException.class)
public void testBug57855e() {
MethodExpression me = factory.createMethodExpression(context,
"${beanB.echo}", null , new Class[]{String.class});
Modified: tomcat/trunk/webapps/docs/changelog.xml
URL:
http://svn.apache.org/viewvc/tomcat/trunk/webapps/docs/changelog.xml?rev=1817495&r1=1817494&r2=1817495&view=diff
==============================================================================
--- tomcat/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/trunk/webapps/docs/changelog.xml Fri Dec 8 13:11:10 2017
@@ -65,6 +65,11 @@
that Jasper correctly parses the expression. Patch provided by Ricardo
Martin Camarero. (markt)
</fix>
+ <fix>
+ Improve the handling of methods with varargs in EL expressions. In
+ particular, the calling of a varargs method with no parameters now
works
+ correctly. Based on a patch by Nitkalya (Ing) Wiriyanuparb. (markt)
+ </fix>
</changelog>
</subsection>
<subsection name="Coyote">
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