Remove unthrown exceptions

src/main/java/org/apache/commons/xml/secure/FallbackIgnoreEntityResolver2.java

@@ -109,11 +109,11 @@ public InputSource getExternalSubset(final String name, final String baseURI) th
      * @param publicId The public identifier, or {@code null} if none.
      * @param baseURI  The base URI for relative resolution, or {@code null}.
      * @param systemId The system identifier of the unresolved entity.
-     * @return An empty {@link InputSource} carrying the requested identifiers.
+     * @return an empty {@link InputSource} carrying the requested identifiers.
      * @throws SAXException when {@value SecureException#THROW_ON_UNRESOLVED} is set: unresolved references are rejected instead of resolved to empty.
      * @throws IOException  never by the default implementation.
      */
-    private InputSource onUnresolved(final String name, final String publicId, final String baseURI, final String systemId) throws SAXException, IOException {
+    private InputSource onUnresolved(final String name, final String publicId, final String baseURI, final String systemId) throws SAXException {
         if (SecureException.throwOnUnresolved()) {
             throw new SAXException(SecureException.forbidden(name, null, publicId, systemId, baseURI));
         }

src/test/java/org/apache/commons/xml/secure/SecureTransformerFactoryTest.java

@@ -157,7 +157,7 @@ public void setFeature(final String name, final boolean value) throws Transforme
         }
     }
 
-    private static void associatedStylesheet(final SAXTransformerFactory factory, final Source source) throws Exception {
+    private static void associatedStylesheet(final SAXTransformerFactory factory, final Source source) {
         try {
             factory.getAssociatedStylesheet(source, null, null, null);
         } catch (final TransformerConfigurationException | NullPointerException expected) {

src/test/java/org/apache/commons/xml/secure/XIncludeTest.java

@@ -192,7 +192,7 @@ void secureDomBlocksParseText() throws Exception {
 
     @Test
     @Tag("dom")
-    void secureDomBlocksParseXml() throws Exception {
+    void secureDomBlocksParseXml() {
         final InputSource input = inputSource(xiIncludeXml(REFERENCED_XML, "xml"));
 
         final DocumentBuilderFactory factory = SecureDocumentBuilderFactory.newInstance();
@@ -306,7 +306,7 @@ void secureSaxBlocksParseText() throws Exception {
 
     @Test
     @Tag("sax")
-    void secureSaxBlocksParseXml() throws Exception {
+    void secureSaxBlocksParseXml() {
         final InputSource input = inputSource(xiIncludeXml(REFERENCED_XML, "xml"));
 
         final SAXParserFactory factory = SecureSAXParserFactory.newInstance();