[225375] fix showing warning message on duplicate servlet name

plugins/org.eclipse.jst.servlet.ui/servlet_ui/org/eclipse/jst/servlet/ui/internal/wizard/AddFilterWizardPage.java

diff --git a/plugins/org.eclipse.jst.servlet.ui/servlet_ui/org/eclipse/jst/servlet/ui/internal/wizard/AddFilterWizardPage.java b/plugins/org.eclipse.jst.servlet.ui/servlet_ui/org/eclipse/jst/servlet/ui/internal/wizard/AddFilterWizardPage.java
index 7a275c1..49933b2 100644
--- a/plugins/org.eclipse.jst.servlet.ui/servlet_ui/org/eclipse/jst/servlet/ui/internal/wizard/AddFilterWizardPage.java
+++ b/plugins/org.eclipse.jst.servlet.ui/servlet_ui/org/eclipse/jst/servlet/ui/internal/wizard/AddFilterWizardPage.java
@@ -184,4 +184,10 @@
 			return false;
 		return super.canFlipToNextPage();
 	}
+	
+	@Override
+	protected boolean showValidationErrorsOnEnter() {
+		return true;
+	}
+	
 }

plugins/org.eclipse.jst.servlet.ui/servlet_ui/org/eclipse/jst/servlet/ui/internal/wizard/AddServletWizardPage.java

diff --git a/plugins/org.eclipse.jst.servlet.ui/servlet_ui/org/eclipse/jst/servlet/ui/internal/wizard/AddServletWizardPage.java b/plugins/org.eclipse.jst.servlet.ui/servlet_ui/org/eclipse/jst/servlet/ui/internal/wizard/AddServletWizardPage.java
index 8b082bb..32861cb 100644
--- a/plugins/org.eclipse.jst.servlet.ui/servlet_ui/org/eclipse/jst/servlet/ui/internal/wizard/AddServletWizardPage.java
+++ b/plugins/org.eclipse.jst.servlet.ui/servlet_ui/org/eclipse/jst/servlet/ui/internal/wizard/AddServletWizardPage.java
@@ -183,4 +183,10 @@
 			return false;
 		return super.canFlipToNextPage();
 	}
+	
+	@Override
+	protected boolean showValidationErrorsOnEnter() {
+		return true;
+	}
+	
 }