[330557] Wrong analysis of tlds rtexprvalue in the JSP editor

bundles/org.eclipse.jst.jsp.core/src/org/eclipse/jst/jsp/core/internal/validation/JSPActionValidator.java

diff --git a/bundles/org.eclipse.jst.jsp.core/src/org/eclipse/jst/jsp/core/internal/validation/JSPActionValidator.java b/bundles/org.eclipse.jst.jsp.core/src/org/eclipse/jst/jsp/core/internal/validation/JSPActionValidator.java
index 4152cce..5185fbc 100644
--- a/bundles/org.eclipse.jst.jsp.core/src/org/eclipse/jst/jsp/core/internal/validation/JSPActionValidator.java
+++ b/bundles/org.eclipse.jst.jsp.core/src/org/eclipse/jst/jsp/core/internal/validation/JSPActionValidator.java
@@ -30,6 +30,7 @@
 import org.eclipse.jst.jsp.core.internal.contentmodel.TaglibController;
 import org.eclipse.jst.jsp.core.internal.contentmodel.tld.TLDCMDocumentManager;
 import org.eclipse.jst.jsp.core.internal.contentmodel.tld.TaglibTracker;
+import org.eclipse.jst.jsp.core.internal.contentmodel.tld.provisional.JSP11TLDNames;
 import org.eclipse.jst.jsp.core.internal.contentmodel.tld.provisional.TLDAttributeDeclaration;
 import org.eclipse.jst.jsp.core.internal.contentmodel.tld.provisional.TLDElementDeclaration;
 import org.eclipse.jst.jsp.core.internal.contenttype.DeploymentDescriptorPropertyCache;
@@ -250,7 +251,7 @@
 			else {
 				if (fSeverityUnexpectedRuntimeExpression != ValidationMessage.IGNORE && adec instanceof TLDAttributeDeclaration) {
 					// The attribute cannot have a runtime evaluation of an expression
-					if (!Boolean.valueOf(((TLDAttributeDeclaration) adec).getRtexprvalue()).booleanValue()) {
+					if (!isTrue(((TLDAttributeDeclaration) adec).getRtexprvalue())) {
 						IDOMAttr attr = (IDOMAttr) a;
 						if(checkRuntimeValue(attr) && !fIsELIgnored) {
 							String msg = NLS.bind(JSPCoreMessages.JSPActionValidator_1, a.getName());
@@ -271,6 +272,10 @@
 		return foundjspattribute;
 	}
 
+	private boolean isTrue(String value) {
+		return JSP11TLDNames.TRUE.equalsIgnoreCase(value) || JSP11TLDNames.YES.equalsIgnoreCase(value);
+	}
+
 	public void cleanup(IReporter reporter) {
 		super.cleanup(reporter);
 		fTaglibPrefixes.clear();