clean up some throws clauses

h2/src/main/org/h2/security/auth/DefaultAuthenticator.java

@@ -5,6 +5,7 @@
  */
 package org.h2.security.auth;
 
+import java.io.IOException;
 import java.net.URL;
 import java.util.ArrayList;
 import java.util.Collection;
@@ -13,6 +14,7 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import javax.xml.parsers.ParserConfigurationException;
 import org.h2.api.CredentialsValidator;
 import org.h2.api.UserToRolesMapper;
 import org.h2.engine.Database;
@@ -25,6 +27,7 @@ import org.h2.message.Trace;
 import org.h2.security.auth.impl.AssignRealmNameRole;
 import org.h2.security.auth.impl.JaasCredentialsValidator;
 import org.h2.util.StringUtils;
+import org.xml.sax.SAXException;
 
 /**
  * Default authenticator implementation.
@@ -223,19 +226,20 @@ public class DefaultAuthenticator implements Authenticator {
      *
      * @param configUrl URL of configuration file
      */
-    public void configureFromUrl(URL configUrl) throws Exception {
+    public void configureFromUrl(URL configUrl) throws AuthenticationException,
+            SAXException, IOException, ParserConfigurationException {
         H2AuthConfig config = H2AuthConfigXml.parseFrom(configUrl);
         configureFrom(config);
     }
 
-    void configureFrom(H2AuthConfig config) throws Exception {
+    void configureFrom(H2AuthConfig config) throws AuthenticationException {
         allowUserRegistration = config.isAllowUserRegistration();
         createMissingRoles = config.isCreateMissingRoles();
         Map<String, CredentialsValidator> newRealms = new HashMap<>();
         for (RealmConfig currentRealmConfig : config.getRealms()) {
             String currentRealmName = currentRealmConfig.getName();
             if (currentRealmName == null) {
-                throw new Exception("Missing realm name");
+                throw new AuthenticationException("Missing realm name");
             }
             currentRealmName = currentRealmName.toUpperCase();
             CredentialsValidator currentValidator = null;
@@ -243,11 +247,11 @@ public class DefaultAuthenticator implements Authenticator {
                 currentValidator = (CredentialsValidator) Class.forName(currentRealmConfig.getValidatorClass())
                         .newInstance();
             } catch (Exception e) {
-                throw new Exception("invalid validator class fo realm " + currentRealmName, e);
+                throw new AuthenticationException("invalid validator class fo realm " + currentRealmName, e);
             }
             currentValidator.configure(new ConfigProperties(currentRealmConfig.getProperties()));
             if (newRealms.put(currentRealmConfig.getName().toUpperCase(), currentValidator) != null) {
-                throw new Exception("Duplicate realm " + currentRealmConfig.getName());
+                throw new AuthenticationException("Duplicate realm " + currentRealmConfig.getName());
             }
         }
         this.realms = newRealms;
@@ -258,7 +262,7 @@ public class DefaultAuthenticator implements Authenticator {
                 currentUserToRolesMapper = (UserToRolesMapper) Class
                         .forName(currentUserToRolesMapperConfig.getClassName()).newInstance();
             } catch (Exception e) {
-                throw new Exception("Invalid class in UserToRolesMapperConfig", e);
+                throw new AuthenticationException("Invalid class in UserToRolesMapperConfig", e);
             }
             currentUserToRolesMapper.configure(new ConfigProperties(currentUserToRolesMapperConfig.getProperties()));
             newUserToRolesMapper.add(currentUserToRolesMapper);

h2/src/main/org/h2/security/auth/H2AuthConfigXml.java

@@ -5,8 +5,10 @@
  */
 package org.h2.security.auth;
 
+import java.io.IOException;
 import java.io.InputStream;
 import java.net.URL;
+import javax.xml.parsers.ParserConfigurationException;
 import javax.xml.parsers.SAXParser;
 import javax.xml.parsers.SAXParserFactory;
 import org.xml.sax.Attributes;
@@ -90,16 +92,18 @@ public class H2AuthConfigXml extends DefaultHandler{
     /**
      * Parse the xml
      */
-    public static H2AuthConfig parseFrom(URL url) throws Exception{
-        try (InputStream inputStream= url.openStream()) {
+    public static H2AuthConfig parseFrom(URL url)
+            throws SAXException, IOException, ParserConfigurationException {
+        try (InputStream inputStream = url.openStream()) {
             return parseFrom(inputStream);
         }
     }
 
-    public static H2AuthConfig parseFrom(InputStream inputStream) throws Exception{
+    public static H2AuthConfig parseFrom(InputStream inputStream)
+            throws SAXException, IOException, ParserConfigurationException {
         SAXParser saxParser = SAXParserFactory.newInstance().newSAXParser();
         H2AuthConfigXml xmlHandler = new H2AuthConfigXml();
-        saxParser.parse(inputStream,xmlHandler);
+        saxParser.parse(inputStream, xmlHandler);
         return xmlHandler.getResult();
     }
 }

h2/src/main/org/h2/server/pg/PgServerThread.java

@@ -30,7 +30,6 @@ import java.sql.Types;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Properties;
-
 import org.h2.command.CommandInterface;
 import org.h2.engine.ConnectionInfo;
 import org.h2.engine.Constants;
@@ -508,7 +507,7 @@ public class PgServerThread implements Runnable {
         sendMessage();
     }
 
-    private void sendDataRow(ResultSet rs, int[] formatCodes) throws Exception {
+    private void sendDataRow(ResultSet rs, int[] formatCodes) throws IOException, SQLException {
         ResultSetMetaData metaData = rs.getMetaData();
         int columns = metaData.getColumnCount();
         startMessage('D');
@@ -535,7 +534,7 @@ public class PgServerThread implements Runnable {
     }
 
     private void writeDataColumn(ResultSet rs, int column, int pgType, boolean text)
-            throws Exception {
+            throws IOException {
         Value v = ((JdbcResultSet) rs).get(column);
         if (v == ValueNull.INSTANCE) {
             writeInt(-1);
@@ -758,7 +757,7 @@ public class PgServerThread implements Runnable {
         sendMessage();
     }
 
-    private void sendRowDescription(ResultSetMetaData meta) throws Exception {
+    private void sendRowDescription(ResultSetMetaData meta) throws IOException, SQLException {
         if (meta == null) {
             sendNoData();
         } else {