Polish ReflectiveMethodResolver and unit tests
- Update Javadoc - Fix whitespace errors (tabs v. spaces, trailing spaces) - Break at 90 chars where sensible - Remove dead test code - Fix generics warnings, remove @SuppressWarnings
This commit is contained in:
Chris Beams
parent
8980ce712d
commit
c7fd03be69
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@ -38,11 +38,14 @@ import org.springframework.expression.spel.SpelMessage;
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import org.springframework.util.CollectionUtils;
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/**
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* A method resolver that uses reflection to locate the method that should be invoked.
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* Reflection-based {@link MethodResolver} used by default in
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* {@link StandardEvaluationContext} unless explicit method resolvers have been specified.
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*
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* @author Andy Clement
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* @author Juergen Hoeller
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* @author Chris Beams
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* @since 3.0
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* @see StandardEvaluationContext#addMethodResolver(MethodResolver)
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*/
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public class ReflectiveMethodResolver implements MethodResolver {
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@ -92,10 +95,10 @@ public class ReflectiveMethodResolver implements MethodResolver {
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// If a filter is registered for this type, call it
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MethodFilter filter = (this.filters != null ? this.filters.get(type) : null);
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if (filter != null) {
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List<Method> methodsForFiltering = new ArrayList<Method>();
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for (Method method: methods) {
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methodsForFiltering.add(method);
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}
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List<Method> methodsForFiltering = new ArrayList<Method>();
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for (Method method: methods) {
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methodsForFiltering.add(method);
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}
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List<Method> methodsFiltered = filter.filter(methodsForFiltering);
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if (CollectionUtils.isEmpty(methodsFiltered)) {
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methods = NO_METHODS;
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@ -124,7 +127,7 @@ public class ReflectiveMethodResolver implements MethodResolver {
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continue;
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}
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if (method.getName().equals(name)) {
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Class[] paramTypes = method.getParameterTypes();
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Class<?>[] paramTypes = method.getParameterTypes();
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List<TypeDescriptor> paramDescriptors = new ArrayList<TypeDescriptor>(paramTypes.length);
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for (int i = 0; i < paramTypes.length; i++) {
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paramDescriptors.add(new TypeDescriptor(new MethodParameter(method, i)));
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@ -132,8 +132,8 @@ public class SpringEL300Tests extends ExpressionTestCase {
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static class Spr5899Class {
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public Spr5899Class() {}
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public Spr5899Class(Integer i) { }
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public Spr5899Class(Integer i, String... s) { }
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public Spr5899Class(Integer i) { }
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public Spr5899Class(Integer i, String... s) { }
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public Integer tryToInvokeWithNull(Integer value) { return value; }
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public Integer tryToInvokeWithNull2(int i) { return new Integer(i); }
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@ -179,10 +179,9 @@ public class SpringEL300Tests extends ExpressionTestCase {
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}
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}
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@SuppressWarnings("unchecked")
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@Test
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public void testSPR5804() throws Exception {
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Map m = new HashMap();
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Map<String,String> m = new HashMap<String,String>();
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m.put("foo", "bar");
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StandardEvaluationContext eContext = new StandardEvaluationContext(m); // root is a map instance
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eContext.addPropertyAccessor(new MapAccessor());
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@ -239,11 +238,11 @@ public class SpringEL300Tests extends ExpressionTestCase {
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static class MapAccessor implements PropertyAccessor {
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public boolean canRead(EvaluationContext context, Object target, String name) throws AccessException {
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return (((Map) target).containsKey(name));
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return (((Map<?,?>) target).containsKey(name));
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}
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public TypedValue read(EvaluationContext context, Object target, String name) throws AccessException {
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return new TypedValue(((Map) target).get(name));
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return new TypedValue(((Map<?,?>) target).get(name));
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}
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public boolean canWrite(EvaluationContext context, Object target, String name) throws AccessException {
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@ -252,10 +251,10 @@ public class SpringEL300Tests extends ExpressionTestCase {
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@SuppressWarnings("unchecked")
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public void write(EvaluationContext context, Object target, String name, Object newValue) throws AccessException {
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((Map) target).put(name, newValue);
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((Map<String, Object>) target).put(name, newValue);
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}
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public Class[] getSpecificTargetClasses() {
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public Class<?>[] getSpecificTargetClasses() {
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return new Class[] {Map.class};
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}
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@ -338,8 +337,8 @@ public class SpringEL300Tests extends ExpressionTestCase {
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}
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private final Resource resource;
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public Resource getResource() {
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return resource;
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}
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return resource;
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}
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}
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static class Resource {
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@ -376,7 +375,6 @@ public class SpringEL300Tests extends ExpressionTestCase {
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}
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/** $ related identifiers */
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@SuppressWarnings("unchecked")
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@Test
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public void testDollarPrefixedIdentifier_SPR7100() {
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Holder h = new Holder();
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@ -431,7 +429,10 @@ public class SpringEL300Tests extends ExpressionTestCase {
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Assert.assertEquals("wobble",name);
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}
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/** Should be accessing (setting) Goo.wibble field because 'bar' variable evaluates to "wibble" */
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/**
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* Should be accessing (setting) Goo.wibble field because 'bar' variable evaluates to
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* "wibble"
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*/
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@Test
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public void testIndexingAsAPropertyAccess_SPR6968_4() {
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Goo g = Goo.instance;
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@ -509,7 +510,7 @@ public class SpringEL300Tests extends ExpressionTestCase {
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static class Holder {
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public Map map = new HashMap();
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public Map<String,String> map = new HashMap<String,String>();
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}
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// ---
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@ -553,21 +554,6 @@ public class SpringEL300Tests extends ExpressionTestCase {
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}
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};
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// @Test
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// public void testFails() {
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//
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// StandardEvaluationContext evaluationContext = new StandardEvaluationContext();
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// evaluationContext.setVariable("target", new Foo2());
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// for (int i = 0; i < 300000; i++) {
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// evaluationContext.addPropertyAccessor(new MapAccessor());
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// ExpressionParser parser = new SpelExpressionParser();
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// Expression expression = parser.parseExpression("#target.execute(payload)");
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// Message message = new Message();
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// message.setPayload(i+"");
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// expression.getValue(evaluationContext, message);
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// }
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// }
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static class Foo2 {
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public void execute(String str){
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System.out.println("Value: " + str);
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@ -698,64 +684,63 @@ public class SpringEL300Tests extends ExpressionTestCase {
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}
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@Test
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@SuppressWarnings("unchecked")
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public void testMapOfMap_SPR7244() throws Exception {
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Map<String,Object> map = new LinkedHashMap();
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map.put("uri", "http:");
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Map nameMap = new LinkedHashMap();
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nameMap.put("givenName", "Arthur");
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map.put("value", nameMap);
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Map<String,Object> map = new LinkedHashMap<String,Object>();
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map.put("uri", "http:");
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Map<String,String> nameMap = new LinkedHashMap<String,String>();
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nameMap.put("givenName", "Arthur");
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map.put("value", nameMap);
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StandardEvaluationContext ctx = new StandardEvaluationContext(map);
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ExpressionParser parser = new SpelExpressionParser();
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String el1 = "#root['value'].get('givenName')";
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Expression exp = parser.parseExpression(el1);
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Object evaluated = exp.getValue(ctx);
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Assert.assertEquals("Arthur", evaluated);
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StandardEvaluationContext ctx = new StandardEvaluationContext(map);
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ExpressionParser parser = new SpelExpressionParser();
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String el1 = "#root['value'].get('givenName')";
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Expression exp = parser.parseExpression(el1);
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Object evaluated = exp.getValue(ctx);
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Assert.assertEquals("Arthur", evaluated);
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String el2 = "#root['value']['givenName']";
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exp = parser.parseExpression(el2);
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evaluated = exp.getValue(ctx);
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Assert.assertEquals("Arthur",evaluated);
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}
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String el2 = "#root['value']['givenName']";
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exp = parser.parseExpression(el2);
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evaluated = exp.getValue(ctx);
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Assert.assertEquals("Arthur",evaluated);
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}
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@Test
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public void testProjectionTypeDescriptors_1() throws Exception {
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StandardEvaluationContext ctx = new StandardEvaluationContext(new C());
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SpelExpressionParser parser = new SpelExpressionParser();
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String el1 = "ls.![#this.equals('abc')]";
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SpelExpression exp = parser.parseRaw(el1);
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List value = (List)exp.getValue(ctx);
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// value is list containing [true,false]
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Assert.assertEquals(Boolean.class,value.get(0).getClass());
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TypeDescriptor evaluated = exp.getValueTypeDescriptor(ctx);
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Assert.assertEquals(null, evaluated.getElementTypeDescriptor());
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StandardEvaluationContext ctx = new StandardEvaluationContext(new C());
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SpelExpressionParser parser = new SpelExpressionParser();
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String el1 = "ls.![#this.equals('abc')]";
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SpelExpression exp = parser.parseRaw(el1);
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List<?> value = (List<?>)exp.getValue(ctx);
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// value is list containing [true,false]
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Assert.assertEquals(Boolean.class,value.get(0).getClass());
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TypeDescriptor evaluated = exp.getValueTypeDescriptor(ctx);
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Assert.assertEquals(null, evaluated.getElementTypeDescriptor());
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}
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@Test
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public void testProjectionTypeDescriptors_2() throws Exception {
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StandardEvaluationContext ctx = new StandardEvaluationContext(new C());
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SpelExpressionParser parser = new SpelExpressionParser();
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String el1 = "as.![#this.equals('abc')]";
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SpelExpression exp = parser.parseRaw(el1);
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Object[] value = (Object[])exp.getValue(ctx);
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// value is array containing [true,false]
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Assert.assertEquals(Boolean.class,value[0].getClass());
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TypeDescriptor evaluated = exp.getValueTypeDescriptor(ctx);
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Assert.assertEquals(Boolean.class, evaluated.getElementTypeDescriptor().getType());
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StandardEvaluationContext ctx = new StandardEvaluationContext(new C());
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SpelExpressionParser parser = new SpelExpressionParser();
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String el1 = "as.![#this.equals('abc')]";
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SpelExpression exp = parser.parseRaw(el1);
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Object[] value = (Object[])exp.getValue(ctx);
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// value is array containing [true,false]
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Assert.assertEquals(Boolean.class,value[0].getClass());
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TypeDescriptor evaluated = exp.getValueTypeDescriptor(ctx);
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Assert.assertEquals(Boolean.class, evaluated.getElementTypeDescriptor().getType());
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}
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@Test
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public void testProjectionTypeDescriptors_3() throws Exception {
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StandardEvaluationContext ctx = new StandardEvaluationContext(new C());
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SpelExpressionParser parser = new SpelExpressionParser();
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String el1 = "ms.![key.equals('abc')]";
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SpelExpression exp = parser.parseRaw(el1);
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List value = (List)exp.getValue(ctx);
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// value is list containing [true,false]
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Assert.assertEquals(Boolean.class,value.get(0).getClass());
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TypeDescriptor evaluated = exp.getValueTypeDescriptor(ctx);
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Assert.assertEquals(null, evaluated.getElementTypeDescriptor());
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StandardEvaluationContext ctx = new StandardEvaluationContext(new C());
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SpelExpressionParser parser = new SpelExpressionParser();
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String el1 = "ms.![key.equals('abc')]";
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SpelExpression exp = parser.parseRaw(el1);
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List<?> value = (List<?>)exp.getValue(ctx);
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// value is list containing [true,false]
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Assert.assertEquals(Boolean.class,value.get(0).getClass());
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TypeDescriptor evaluated = exp.getValueTypeDescriptor(ctx);
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Assert.assertEquals(null, evaluated.getElementTypeDescriptor());
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}
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static class C {
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@ -795,29 +780,30 @@ public class SpringEL300Tests extends ExpressionTestCase {
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list.add(new D(null));
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list.add(new D("zzz"));
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StandardEvaluationContext ctx = new StandardEvaluationContext(list);
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SpelExpressionParser parser = new SpelExpressionParser();
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StandardEvaluationContext ctx = new StandardEvaluationContext(list);
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SpelExpressionParser parser = new SpelExpressionParser();
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String el1 = "#root.?[a < 'hhh']";
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SpelExpression exp = parser.parseRaw(el1);
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Object value = exp.getValue(ctx);
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assertEquals("[D(aaa), D(bbb), D(null), D(ccc), D(null)]",value.toString());
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String el1 = "#root.?[a < 'hhh']";
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SpelExpression exp = parser.parseRaw(el1);
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Object value = exp.getValue(ctx);
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assertEquals("[D(aaa), D(bbb), D(null), D(ccc), D(null)]",value.toString());
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String el2 = "#root.?[a > 'hhh']";
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SpelExpression exp2 = parser.parseRaw(el2);
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Object value2 = exp2.getValue(ctx);
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assertEquals("[D(zzz)]",value2.toString());
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String el2 = "#root.?[a > 'hhh']";
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SpelExpression exp2 = parser.parseRaw(el2);
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Object value2 = exp2.getValue(ctx);
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assertEquals("[D(zzz)]",value2.toString());
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// trim out the nulls first
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String el3 = "#root.?[a!=null].?[a < 'hhh']";
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SpelExpression exp3 = parser.parseRaw(el3);
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Object value3 = exp3.getValue(ctx);
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assertEquals("[D(aaa), D(bbb), D(ccc)]",value3.toString());
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// trim out the nulls first
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String el3 = "#root.?[a!=null].?[a < 'hhh']";
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SpelExpression exp3 = parser.parseRaw(el3);
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Object value3 = exp3.getValue(ctx);
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assertEquals("[D(aaa), D(bbb), D(ccc)]",value3.toString());
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}
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/**
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* Test whether {@link ReflectiveMethodResolver} follows Java Method Invocation Conversion order. And more precisely
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* that widening reference conversion is 'higher' than a unboxing conversion.
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* Test whether {@link ReflectiveMethodResolver} follows Java Method Invocation
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* Conversion order. And more precisely that widening reference conversion is 'higher'
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* than a unboxing conversion.
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*/
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@Test
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public void testConversionPriority_8224() throws Exception {
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@ -957,109 +943,108 @@ public class SpringEL300Tests extends ExpressionTestCase {
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public class ReflectionUtil<T extends Number> {
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public Object methodToCall(T param) {
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System.out.println(param+" "+param.getClass());
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return "Object methodToCall(T param)";
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}
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public Object methodToCall(T param) {
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System.out.println(param+" "+param.getClass());
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return "Object methodToCall(T param)";
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}
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public void foo(int... array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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public void foo(float...array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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public void foo(double...array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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public void foo(short...array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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public void foo(long...array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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public void foo(boolean...array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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public void foo(char...array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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public void foo(byte...array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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public void foo(int... array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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public void foo(float...array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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public void foo(double...array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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public void foo(short...array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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public void foo(long...array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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public void foo(boolean...array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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public void foo(char...array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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public void foo(byte...array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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public void bar(int... array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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public void bar(int... array) {
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if (array.length==0) {
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throw new RuntimeException();
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}
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}
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}
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@Test
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public void testReservedWords_8228() throws Exception {
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// "DIV","EQ","GE","GT","LE","LT","MOD","NE","NOT"
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@SuppressWarnings("unused")
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class Reserver {
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public Reserver getReserver() {
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return this;
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}
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public String NE = "abc";
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public String ne = "def";
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@SuppressWarnings("unused")
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class Reserver {
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public Reserver getReserver() {
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return this;
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}
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public String NE = "abc";
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public String ne = "def";
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public int DIV = 1;
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public int div = 3;
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public int DIV = 1;
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public int div = 3;
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public Map m = new HashMap();
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public Map<String,String> m = new HashMap<String,String>();
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@SuppressWarnings("unchecked")
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Reserver() {
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m.put("NE","xyz");
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}
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}
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StandardEvaluationContext ctx = new StandardEvaluationContext(new Reserver());
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SpelExpressionParser parser = new SpelExpressionParser();
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String ex = "getReserver().NE";
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SpelExpression exp = null;
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exp = parser.parseRaw(ex);
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String value = (String)exp.getValue(ctx);
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Assert.assertEquals("abc",value);
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m.put("NE","xyz");
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}
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}
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StandardEvaluationContext ctx = new StandardEvaluationContext(new Reserver());
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SpelExpressionParser parser = new SpelExpressionParser();
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String ex = "getReserver().NE";
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SpelExpression exp = null;
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||||
exp = parser.parseRaw(ex);
|
||||
String value = (String)exp.getValue(ctx);
|
||||
Assert.assertEquals("abc",value);
|
||||
|
||||
ex = "getReserver().ne";
|
||||
exp = parser.parseRaw(ex);
|
||||
value = (String)exp.getValue(ctx);
|
||||
Assert.assertEquals("def",value);
|
||||
ex = "getReserver().ne";
|
||||
exp = parser.parseRaw(ex);
|
||||
value = (String)exp.getValue(ctx);
|
||||
Assert.assertEquals("def",value);
|
||||
|
||||
ex = "getReserver().m[NE]";
|
||||
exp = parser.parseRaw(ex);
|
||||
value = (String)exp.getValue(ctx);
|
||||
Assert.assertEquals("xyz",value);
|
||||
ex = "getReserver().m[NE]";
|
||||
exp = parser.parseRaw(ex);
|
||||
value = (String)exp.getValue(ctx);
|
||||
Assert.assertEquals("xyz",value);
|
||||
|
||||
ex = "getReserver().DIV";
|
||||
exp = parser.parseRaw(ex);
|
||||
Assert.assertEquals(1,exp.getValue(ctx));
|
||||
ex = "getReserver().DIV";
|
||||
exp = parser.parseRaw(ex);
|
||||
Assert.assertEquals(1,exp.getValue(ctx));
|
||||
|
||||
ex = "getReserver().div";
|
||||
exp = parser.parseRaw(ex);
|
||||
Assert.assertEquals(3,exp.getValue(ctx));
|
||||
ex = "getReserver().div";
|
||||
exp = parser.parseRaw(ex);
|
||||
Assert.assertEquals(3,exp.getValue(ctx));
|
||||
|
||||
exp = parser.parseRaw("NE");
|
||||
Assert.assertEquals("abc",exp.getValue(ctx));
|
||||
exp = parser.parseRaw("NE");
|
||||
Assert.assertEquals("abc",exp.getValue(ctx));
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -1089,21 +1074,6 @@ public class SpringEL300Tests extends ExpressionTestCase {
|
|||
expressionParser.parseExpression("shouldBeFourth").getValue(evaluationContext));
|
||||
}
|
||||
|
||||
// test not quite complete, it doesn't check that the list of resolvers at the end of
|
||||
// PropertyOrFieldReference.getPropertyAccessorsToTry() doesn't contain duplicates, which
|
||||
// is what it is trying to test by having a property accessor that returns specific
|
||||
// classes Integer and Number
|
||||
// @Test
|
||||
// public void testPropertyAccessorOrder_8211_2() {
|
||||
// ExpressionParser expressionParser = new SpelExpressionParser();
|
||||
// StandardEvaluationContext evaluationContext =
|
||||
// new StandardEvaluationContext(new Integer(42));
|
||||
//
|
||||
// evaluationContext.addPropertyAccessor(new TestPropertyAccessor2());
|
||||
//
|
||||
// assertEquals("42", expressionParser.parseExpression("x").getValue(evaluationContext));
|
||||
// }
|
||||
|
||||
class TestPropertyAccessor implements PropertyAccessor {
|
||||
private String mapName;
|
||||
public TestPropertyAccessor(String mapName) {
|
||||
|
|
@ -1140,31 +1110,6 @@ public class SpringEL300Tests extends ExpressionTestCase {
|
|||
|
||||
}
|
||||
|
||||
// class TestPropertyAccessor2 implements PropertyAccessor {
|
||||
//
|
||||
// public Class[] getSpecificTargetClasses() {
|
||||
// return new Class[]{Integer.class,Number.class};
|
||||
// }
|
||||
//
|
||||
// public boolean canRead(EvaluationContext context, Object target, String name) throws AccessException {
|
||||
// return true;
|
||||
// }
|
||||
//
|
||||
// public TypedValue read(EvaluationContext context, Object target, String name) throws AccessException {
|
||||
// return new TypedValue(target.toString(),TypeDescriptor.valueOf(String.class));
|
||||
// }
|
||||
//
|
||||
// public boolean canWrite(EvaluationContext context, Object target, String name) throws AccessException {
|
||||
// return false;
|
||||
// }
|
||||
//
|
||||
// public void write(EvaluationContext context, Object target, String name, Object newValue)
|
||||
// throws AccessException {
|
||||
// throw new UnsupportedOperationException();
|
||||
// }
|
||||
//
|
||||
// }
|
||||
|
||||
class ContextObject {
|
||||
public Map<String, String> firstContext = new HashMap<String, String>();
|
||||
public Map<String, String> secondContext = new HashMap<String, String>();
|
||||
|
|
|
|||
Loading…
Reference in New Issue