--no commit message

--no commit message

h2/build.xml

@@ -261,15 +261,20 @@
 		<mkdir dir="docs/javadocImpl"/>
 		<javadoc
 			sourcepath="src/main;src/test;src/tools"
+		    classpath="${path.lucene.jar};${path.servlet.jar};${java.class.path}"
+			packagenames="org.h2.*"
+			doclet="org.h2.tools.doclet.Doclet"  
+		    docletpath="bin"
+		    additionalparam="-J-Dh2.interfacesOnly=false -J-Dh2.destDir=docs/javadocImpl"
+		/>
+		<javadoc
+			sourcepath="src/main;src/test;src/tools"
+		    noindex="true"
 			packagenames="org.h2.*"
 		    excludepackagenames="org.h2.tools.doclet"
-		    classpath="${path.lucene.jar};${path.servlet.jar}"
+		    classpath="${path.lucene.jar};${path.servlet.jar};${java.class.path}"
 			destDir="docs/javadocImpl"
 		/>
-	    <!--
-			doclet="org.h2.tools.doclet.Doclet"  docletpath="bin"
-		    additionalparam="-J-Dh2.interfacesOnly=true -J-Dh2.destDir=docs/javadocImpl"
-		-->
 		<copy todir="docs/javadoc">
 			<fileset dir="src/docsrc/javadoc" includes="**/*"/>
 		</copy>

h2/src/docsrc/html/mainWeb.html

@@ -21,7 +21,7 @@ Welcome to H2, the free SQL database. The main feature of H2 are:
 </p>
 <ul>
 <li>Very fast, free for everybody, source code is included
-</li><li>Written Java; can be compiled with GCJ (Linux)
+</li><li>Written in Java; can be compiled with GCJ (Linux)
 </li><li>Embedded, Server and Cluster modes
 </li><li>JDBC and (partial) ODBC API; Web Client application
 </li></ul>

h2/src/docsrc/text/_docs_en.utf8.txt

@@ -4169,7 +4169,7 @@ Welcome to H2, the free SQL database. The main feature of H2 are:
 Very fast, free for everybody, source code is included
 
 @mainWeb_1003_li
-Written Java; can be compiled with GCJ (Linux)
+Written in Java; can be compiled with GCJ (Linux)
 
 @mainWeb_1004_li
 Embedded, Server and Cluster modes

h2/src/docsrc/textbase/_docs_en.properties

@@ -1388,7 +1388,7 @@ links_1112_p=A database front end to register volunteers, partnership and donati
 mainWeb_1000_h1=H2 Database Engine
 mainWeb_1001_p=Welcome to H2, the free SQL database. The main feature of H2 are\:
 mainWeb_1002_li=Very fast, free for everybody, source code is included
-mainWeb_1003_li=Written Java; can be compiled with GCJ (Linux)
+mainWeb_1003_li=Written in Java; can be compiled with GCJ (Linux)
 mainWeb_1004_li=Embedded, Server and Cluster modes
 mainWeb_1005_li=JDBC and (partial) ODBC API; Web Client application
 mainWeb_1006_h3=Download

h2/src/main/org/h2/bnf/Bnf.java

@@ -134,7 +134,14 @@ public class Bnf {
         addFixedRule("@digit@", RuleFixed.DIGIT);
     }
 
-    public String getSyntax(String rule, String syntax) {
+    /**
+     * Get the HTML documentation for a given syntax.
+     * 
+     * @param rule the rule (topic)
+     * @param syntax the BNF syntax
+     * @return the HTML formatted text
+     */
+    public String getSyntaxHtml(String rule, String syntax) {
         StringTokenizer tokenizer = new StringTokenizer(syntax, SEPARATORS, true);
         StringBuffer buff = new StringBuffer();
         while (tokenizer.hasMoreTokens()) {
@@ -269,6 +276,18 @@ public class Bnf {
         return (String[]) list.toArray(new String[0]);
     }
 
+    /**
+     * Get the list of tokens that can follow.
+     * This is the main autocomplete method.
+     * The returned map for the query 'S' may look like this:
+     * <pre>
+     * key: 1#SELECT, value: ELECT
+     * key: 1#SET, value: ET
+     * </pre>
+     * 
+     * @param query the start of the statement
+     * @return the map of possible token types / tokens
+     */
     public HashMap getNextTokenList(String query) {
         HashMap next = new HashMap();
         Sentence sentence = new Sentence();
@@ -285,6 +304,10 @@ public class Bnf {
         return next;
     }
 
+    /**
+     * Cross-link all statements with each other.
+     * This method is called after updating the topics.
+     */
     public void linkStatements() {
         for (Iterator it = ruleMap.values().iterator(); it.hasNext();) {
             RuleHead r = (RuleHead) it.next();
@@ -292,6 +315,13 @@ public class Bnf {
         }
     }
 
+    /**
+     * Update a topic with a context specific rule.
+     * This is used for autocomplete support.
+     * 
+     * @param topic the topic
+     * @param rule the database context rule
+     */
     public void updateTopic(String topic, DbContextRule rule) {
         topic = StringUtils.toLowerEnglish(topic);
         RuleHead head = (RuleHead) ruleMap.get(topic);
@@ -304,6 +334,11 @@ public class Bnf {
         }
     }
 
+    /**
+     * Get the list of possible statements.
+     * 
+     * @return the list of statements
+     */
     public ArrayList getStatements() {
         return statements;
     }

h2/src/main/org/h2/bnf/RuleList.java

@@ -77,7 +77,7 @@ public class RuleList implements Rule {
     public String name() {
         return null;
     }
-
+    
     public Rule last() {
         return get(list.size() - 1);
     }

h2/src/main/org/h2/bnf/Sentence.java

@@ -15,6 +15,11 @@ import org.h2.server.web.DbTableOrView;
  * Used for autocomplete.
  */
 public class Sentence {
+    
+    /**
+     * The possible choices of the item depend on the context.
+     * For example the item represents a table name of the current database.
+     */
     public static final int CONTEXT = 0;
     static final int KEYWORD = 1;
     static final int FUNCTION = 2;

h2/src/main/org/h2/command/Command.java

@@ -87,10 +87,23 @@ public abstract class Command implements CommandInterface {
         trace = session.getDatabase().getTrace(Trace.COMMAND);
     }
 
+    /**
+     * Execute an updating statement, if this is possible.
+     * 
+     * @return the update count
+     * @throws SQLException if the command is not an updating statement
+     */
     public int update() throws SQLException {
         throw Message.getSQLException(ErrorCode.METHOD_NOT_ALLOWED_FOR_QUERY);
     }
 
+    /**
+     * Execute a query statement, if this is possible.
+     * 
+     * @param maxrows the maximum number of rows returned
+     * @return the local result set
+     * @throws SQLException if the command is not a query
+     */
     public LocalResult query(int maxrows) throws SQLException {
         throw Message.getSQLException(ErrorCode.METHOD_ONLY_ALLOWED_FOR_QUERY);
     }
@@ -107,6 +120,13 @@ public abstract class Command implements CommandInterface {
         return executeQueryLocal(maxrows);
     }
 
+    /**
+     * Execute a query and return a local result set.
+     * This method prepares everything and calls {@link query} finally.
+     * 
+     * @param maxrows the maximum number of rows to return
+     * @return the local result set
+     */
     public LocalResult executeQueryLocal(int maxrows) throws SQLException {
         startTime = System.currentTimeMillis();
         Database database = session.getDatabase();
@@ -131,6 +151,11 @@ public abstract class Command implements CommandInterface {
         startTime = System.currentTimeMillis();
     }
 
+    /**
+     * Check if this command has been cancelled, and throw an exception if yes.
+     * 
+     * @throws SQLException if the statement has been cancelled
+     */
     public void checkCancelled() throws SQLException {
         if (cancel) {
             cancel = false;

h2/src/main/org/h2/command/CommandRemote.java

@@ -219,6 +219,10 @@ public class CommandRemote implements CommandInterface {
         }
     }
 
+    /**
+     * Cancel this current statement.
+     * This method is not yet implemented for this class.
+     */
     public void cancel() {
         // TODO server: support cancel
     }

h2/src/main/org/h2/command/Parser.java

@@ -188,6 +188,12 @@ public class Parser {
         database = session.getDatabase();
     }
 
+    /**
+     * Parse the statement and prepare it for execution.
+     * 
+     * @param sql the SQL statement to parse
+     * @return the prepared object
+     */
     public Prepared prepare(String sql) throws SQLException {
         try {
             Prepared p = parse(sql);
@@ -198,6 +204,12 @@ public class Parser {
         }
     }
 
+    /**
+     * Parse the statement, but don't prepare it for execution.
+     * 
+     * @param sql the SQL statement to parse
+     * @return the prepared object
+     */
     public Prepared parseOnly(String sql) throws SQLException {
         try {
             return parse(sql);
@@ -206,6 +218,12 @@ public class Parser {
         }
     }
 
+    /**
+     * Parse a statement or a list of statements, and prepare it for execution.
+     * 
+     * @param sql the SQL statement to parse
+     * @return the command object
+     */
     public Command prepareCommand(String sql) throws SQLException {
         try {
             Prepared p = parse(sql);
@@ -2883,6 +2901,12 @@ public class Parser {
         return getSaveTokenType(s);
     }
 
+    /**
+     * Checks if this string is a SQL keyword.
+     * 
+     * @param s the token to check
+     * @return true if it is a keyword
+     */
     public static boolean isKeyword(String s) {
         if (s == null || s.length() == 0) {
             return false;
@@ -4444,6 +4468,12 @@ public class Parser {
         }
     }
 
+    /**
+     * Add double quotes around an identifier if required.
+     * 
+     * @param s the identifier
+     * @return the quoted identifier
+     */
     public static String quoteIdentifier(String s) {
         if (s == null || s.length() == 0) {
             return "\"\"";
@@ -4469,6 +4499,13 @@ public class Parser {
         this.rightsChecked = rightsChecked;
     }
 
+    /**
+     * Parse a SQL code snippet that represents an expression.
+     * 
+     * @param sql the code snippet
+     * @return the expression object
+     * @throws SQLException if the code snipped could not be parsed
+     */
     public Expression parseExpression(String sql) throws SQLException {
         parameters = new ObjectArray();
         initialize(sql);

h2/src/main/org/h2/command/ddl/AlterTableAddConstraint.java

@@ -70,6 +70,11 @@ public class AlterTableAddConstraint extends SchemaCommand {
         }
     }
 
+    /**
+     * Try to execute the statement.
+     * 
+     * @return the update count
+     */
     public int tryUpdate() throws SQLException {
         session.commit(true);
         Database db = session.getDatabase();
@@ -350,6 +355,12 @@ public class AlterTableAddConstraint extends SchemaCommand {
         return indexColumns;
     }
 
+    /**
+     * Set the referenced table.
+     * 
+     * @param refSchema the schema
+     * @param ref the table name
+     */
     public void setRefTableName(Schema refSchema, String ref) {
         this.refSchema = refSchema;
         this.refTableName = ref;

h2/src/main/org/h2/command/ddl/CreateTable.java

@@ -59,6 +59,11 @@ public class CreateTable extends SchemaCommand {
         this.tableName = tableName;
     }
 
+    /**
+     * Add a column to this table.
+     * 
+     * @param column the column to add
+     */
     public void addColumn(Column column) {
         if (columns == null) {
             columns = new ObjectArray();
@@ -66,6 +71,12 @@ public class CreateTable extends SchemaCommand {
         columns.add(column);
     }
 
+    /**
+     * Add a constraint statement to this statement.
+     * The primary key definition is one possible constraint statement.
+     * 
+     * @param command the statement to add
+     */
     public void addConstraintCommand(Prepared command) throws SQLException {
         if (command instanceof CreateIndex) {
             constraintCommands.add(command);
@@ -236,10 +247,16 @@ public class CreateTable extends SchemaCommand {
         this.globalTemporary = globalTemporary;
     }
 
+    /**
+     * This temporary table is dropped on commit.
+     */
     public void setOnCommitDrop() {
         this.onCommitDrop = true;
     }
 
+    /**
+     * This temporary table is truncated on commit.
+     */
     public void setOnCommitTruncate() {
         this.onCommitTruncate = true;
     }

h2/src/main/org/h2/command/ddl/DefineCommand.java

@@ -24,23 +24,14 @@ public abstract class DefineCommand extends Prepared {
         super(session);
     }
 
-    /**
-     * {@inheritDoc}
-     */
     public boolean isTransactional() {
         return false;
     }
 
-    /**
-     * {@inheritDoc}
-     */
     public boolean isReadOnly() {
         return false;
     }
 
-    /**
-     * {@inheritDoc}
-     */
     public LocalResult queryMeta() {
         return null;
     }

h2/src/main/org/h2/command/ddl/DropTable.java

@@ -30,6 +30,11 @@ public class DropTable extends SchemaCommand {
         super(session, schema);
     }
 
+    /**
+     * Chain another drop table statement to this statement.
+     * 
+     * @param next the statement to add
+     */
     public void addNextDropTable(DropTable next) {
         if (this.next == null) {
             this.next = next;

h2/src/main/org/h2/command/ddl/GrantRevoke.java

@@ -41,10 +41,20 @@ public class GrantRevoke extends DefineCommand {
         this.operationType = operationType;
     }
 
+    /**
+     * Add the specified right bit to the rights bitmap.
+     * 
+     * @param right the right bit
+     */
     public void addRight(int right) {
         this.rightMask |= right;
     }
 
+    /**
+     * Add the specified role to the list of roles.
+     * 
+     * @param roleName the role
+     */
     public void addRoleName(String roleName) {
         if (roleNames == null) {
             roleNames = new ObjectArray();
@@ -163,6 +173,11 @@ public class GrantRevoke extends DefineCommand {
         return false;
     }
 
+    /**
+     * Add the specified table to the list of tables.
+     * 
+     * @param table the table
+     */
     public void addTable(Table table) {
         tables.add(table);
     }

h2/src/main/org/h2/command/dml/ScriptBase.java

@@ -53,8 +53,6 @@ public abstract class ScriptBase extends Prepared implements DataHandler {
     private String cipher;
     private byte[] key;
     private FileStore store;
-    private OutputStream outStream;
-    private InputStream inStream;
     private String compressionAlgorithm;
 
     public ScriptBase(Session session) {
@@ -110,8 +108,8 @@ public abstract class ScriptBase extends Prepared implements DataHandler {
             // always use a big buffer, otherwise end-of-block is written a lot
             out = new BufferedOutputStream(out, Constants.IO_BUFFER_SIZE_COMPRESS);
         } else {
-            outStream = FileUtils.openFileOutputStream(fileName, false);
-            out = new BufferedOutputStream(outStream, Constants.IO_BUFFER_SIZE);
+            OutputStream o = FileUtils.openFileOutputStream(fileName, false);
+            out = new BufferedOutputStream(o, Constants.IO_BUFFER_SIZE);
             out = CompressTool.wrapOutputStream(out, compressionAlgorithm, Constants.SCRIPT_SQL);
         }
     }
@@ -124,6 +122,7 @@ public abstract class ScriptBase extends Prepared implements DataHandler {
             initStore();
             in = new FileStoreInputStream(store, this, compressionAlgorithm != null, false);
         } else {
+            InputStream inStream;
             try {
                 inStream = FileUtils.openFileInputStream(fileName);
             } catch (IOException e) {
@@ -146,10 +145,6 @@ public abstract class ScriptBase extends Prepared implements DataHandler {
             store.closeSilently();
             store = null;
         }
-        IOUtils.closeSilently(inStream);
-        inStream = null;
-        IOUtils.closeSilently(outStream);
-        outStream = null;
     }
 
     public boolean needRecompile() {

h2/src/main/org/h2/command/dml/ScriptCommand.java

@@ -336,7 +336,9 @@ public class ScriptCommand extends ScriptBase {
                 Comment comment = (Comment) comments.get(i);
                 add(comment.getCreateSQL(), false);
             }
-            closeIO();
+            if (out != null) {
+                out.close();
+            }
         } catch (IOException e) {
             throw Message.convertIOException(e, fileName);
         } finally {

h2/src/main/org/h2/command/dml/SelectUnion.java

@@ -78,6 +78,12 @@ public class SelectUnion extends Query {
         return result;
     }
 
+    /**
+     * Execute the query without using the cache.
+     * 
+     * @param maxrows the maximum number of rows to return
+     * @return the result
+     */
     public LocalResult queryWithoutCache(int maxrows) throws SQLException {
         if (maxrows != 0) {
             if (limit != null) {

h2/src/main/org/h2/command/dml/SetTypes.java

@@ -72,6 +72,12 @@ public class SetTypes {
         types.set(type, name);
     }
 
+    /**
+     * Get the set type number.
+     * 
+     * @param name the set type name
+     * @return the number
+     */
     public static int getType(String name) {
         for (int i = 0; i < types.size(); i++) {
             if (name.equals(types.get(i))) {
@@ -85,6 +91,12 @@ public class SetTypes {
         return types;
     }
 
+    /**
+     * Get the set type name.
+     * 
+     * @param type the type number
+     * @return the name
+     */
     public static String getTypeName(int type) {
         return (String) types.get(type);
     }

h2/src/main/org/h2/command/dml/Update.java

@@ -48,6 +48,12 @@ public class Update extends Prepared {
         this.condition = condition;
     }
 
+    /**
+     * Add an assignment of the form column = expression.
+     * 
+     * @param column the column
+     * @param expression the expression
+     */
     public void setAssignment(Column column, Expression expression)
             throws SQLException {
         int id = column.getColumnId();

h2/src/main/org/h2/jdbcx/JdbcXid.java

@@ -82,7 +82,7 @@ implements Xid
         return branchQualifier;
     }
 
-    /** 
+    /**
      * The global transaction identifier.
      * 
      * @return the transaction id

h2/src/main/org/h2/store/fs/FileSystemDisk.java

@@ -259,6 +259,7 @@ public class FileSystemDisk extends FileSystem {
                 }
                 out.write(buffer, 0, len);
             }
+            out.close();
         } catch (IOException e) {
             throw Message.convertIOException(e, "original: " + original + " copy: " + copy);
         } finally {

h2/src/main/org/h2/tools/Csv.java

@@ -83,6 +83,7 @@ public class Csv implements SimpleRowSource {
                 writeRow(row);
                 rows++;
             }
+            writer.close();
             return rows;
         } catch (IOException e) {
             throw Message.convertIOException(e, null);

h2/src/main/org/h2/tools/Recover.java

@@ -352,6 +352,7 @@ public class Recover implements DataHandler {
                 out.write(buffer, 0, l);
                 size += l;
             }
+            out.close();
         } catch (Throwable e) {
             // this is usually not a problem, because we try both compressed and
             // uncompressed
@@ -544,6 +545,7 @@ public class Recover implements DataHandler {
                     }
                 }
             }
+            writer.close();
         } catch (Throwable e) {
             writeError(writer, e);
         } finally {
@@ -663,6 +665,7 @@ public class Recover implements DataHandler {
                 }
                 writer.println("// [" + block + "] page:" + page + " blocks:" + blockCount + " storage:" + storageId);
             }
+            writer.close();
         } catch (Throwable e) {
             writeError(writer, e);
         } finally {
@@ -833,6 +836,7 @@ public class Recover implements DataHandler {
             }
             writer.println("DROP ALIAS READ_CLOB;");
             writer.println("DROP ALIAS READ_BLOB;");
+            writer.close();
         } catch (Throwable e) {
             writeError(writer, e);
         } finally {

h2/src/main/org/h2/tools/Restore.java

@@ -161,6 +161,7 @@ public class Restore {
                     try {
                         out = FileUtils.openFileOutputStream(directory + File.separator + fileName, false);
                         IOUtils.copy(zipIn, out);
+                        out.close();
                     } finally {
                         IOUtils.closeSilently(out);
                     }

h2/src/main/org/h2/util/IOUtils.java

@@ -64,9 +64,11 @@ public class IOUtils {
 
     public static long copyAndClose(InputStream in, OutputStream out) throws IOException {
         try {
-            return copyAndCloseInput(in, out);
-        } finally {
+            long len = copyAndCloseInput(in, out);
             out.close();
+            return len;
+        } finally {
+            closeSilently(out);
         }
     }
 
@@ -74,7 +76,7 @@ public class IOUtils {
         try {
             return copy(in, out);
         } finally {
-            in.close();
+            closeSilently(in);
         }
     }
 

h2/src/main/org/h2/value/CompareMode.java

@@ -115,13 +115,10 @@ public class CompareMode {
     }
 
     /**
-     * Get the collation name
+     * Get the collation name.
      * 
-     * @param a the first string
-     * @param b the second string
-     * @param ignoreCase true if a case-insensitive comparison should be made
-     * @return -1 if the first string is 'smaller', 1 if the second string is
-     *         smaller, and 0 if they are equal
+     * @param l the locale
+     * @return the name of the collation
      */
     public static String getName(Locale l) {
         Locale english = Locale.ENGLISH;

h2/src/test/org/h2/test/TestAll.java

@@ -166,8 +166,10 @@ create index idx_type on test(type);
 explain SELECT type, max(name) FROM TEST group by type;
 SELECT type, max(name) FROM TEST group by type;
 
+
 read uncommitted and multi-threaded mode at the same time is dangerous
 
+add @author
 
 CREATE TABLE in a before trigger results in an internal error.
 
@@ -212,6 +214,7 @@ New experimental optimization for GROUP BY queries if an index can be used
 
 Roadmap:
 Use ant 'get' to download dependencies
+Index usage for UPDATE ... WHERE .. IN (SELECT...)
 
 
 */

h2/src/test/org/h2/test/db/TestCsv.java

@@ -24,6 +24,10 @@ import org.h2.util.StringUtils;
 
 /**
  * CSVREAD and CSVWRITE tests.
+ * 
+ * @author Thomas Mueller
+ * @author Sylvain Cuaz (testNull)
+ * 
  */
 public class TestCsv extends TestBase {
 
@@ -40,8 +44,6 @@ public class TestCsv extends TestBase {
 
     /**
      * Test custom NULL string.
-     *
-     * @author Sylvain Cuaz, Thomas Mueller
      */
     public void testNull() throws Exception {
         deleteDb("csv");

h2/src/tools/org/h2/tools/doc/GenerateDoc.java

@@ -103,7 +103,7 @@ public class GenerateDoc {
                 String syntax = rs.getString("SYNTAX");
                 syntax = PageParser.escapeHtml(syntax);
                 syntax = StringUtils.replaceAll(syntax, "<br />", "");
-                syntax = bnf.getSyntax(topic, syntax);
+                syntax = bnf.getSyntaxHtml(topic, syntax);
                 map.put("syntax", syntax);
                 String link = topic.toLowerCase();
                 link = StringUtils.replaceAll(link, " ", "");

h2/src/tools/org/h2/tools/doclet/Doclet.java

@@ -32,8 +32,13 @@ import com.sun.javadoc.Type;
 public class Doclet {
 
     private static final boolean INTERFACES_ONLY = Boolean.getBoolean("h2.interfacesOnly");
+    private int errorCount;
 
     public static boolean start(RootDoc root) throws IOException {
+        return new Doclet().startDoc(root);
+    }
+    
+    public boolean startDoc(RootDoc root) throws IOException {
         ClassDoc[] classes = root.classes();
         String[][] options = root.options();
         String destDir = System.getProperty("h2.destDir", "docs/javadoc");
@@ -46,6 +51,9 @@ public class Doclet {
             ClassDoc clazz = classes[i];
             processClass(destDir, clazz);
         }
+        if (errorCount > 0) {
+            throw new IOException("FAILED: " + errorCount + " errors found");
+        }
         return true;
     }
 
@@ -56,7 +64,7 @@ public class Doclet {
         return name;
     }
 
-    private static void processClass(String destDir, ClassDoc clazz) throws IOException {
+    private void processClass(String destDir, ClassDoc clazz) throws IOException {
         String packageName = clazz.containingPackage().name();
         String dir = destDir + "/" + packageName.replace('.', '/');
         (new File(dir)).mkdirs();
@@ -141,7 +149,8 @@ public class Doclet {
             String name = field.name();
             String text = field.commentText();
             if (text == null || text.trim().length() == 0) {
-                throw new Error("undocumented field? " + clazz.name() + "." + name + " " + field);
+                System.out.println("Undocumented field? " + clazz.name() + "." + name + " " + field);
+                errorCount++;
             }
             if (text.startsWith("INTERNAL")) {
                 continue;
@@ -290,15 +299,16 @@ public class Doclet {
         out.close();
     }
 
-    private static String getFieldLink(String text, String constant, ClassDoc clazz, String name) {
+    private String getFieldLink(String text, String constant, ClassDoc clazz, String name) {
         String link = constant != null ? constant : name.toLowerCase();
         int linkStart = text.indexOf("<code>");
         if (linkStart >= 0) {
             int linkEnd = text.indexOf("</code>", linkStart);
             link = text.substring(linkStart + "<code>".length(), linkEnd);
             if (constant != null && !constant.equals(link)) {
-                throw new Error("wrong code tag? " + clazz.name() + "." + name +
+                System.out.println("Wrong code tag? " + clazz.name() + "." + name +
                         " code: " + link + " constant: " + constant);
+                errorCount++;
             }
         }
         if (Character.isDigit(link.charAt(0))) {
@@ -322,26 +332,67 @@ public class Doclet {
         return false;
     }
 
-    private static boolean skipMethod(MethodDoc method) {
+    private boolean skipMethod(MethodDoc method) {
         ClassDoc clazz = method.containingClass();
-         if (INTERFACES_ONLY && (!clazz.isAbstract() || !method.isAbstract()) && !clazz.isInterface()) {
+        boolean isInterface = clazz.isInterface() || (clazz.isAbstract() && method.isAbstract());
+         if (INTERFACES_ONLY && !isInterface) {
              return true;
          }
         String name = method.name();
         if (!method.isPublic() || name.equals("finalize")) {
             return true;
         }
-        if (method.getRawCommentText().startsWith("@deprecated INTERNAL")) {
+        if (method.getRawCommentText().trim().startsWith("@deprecated INTERNAL")) {
             return true;
         }
         String firstSentence = getFirstSentence(method.firstSentenceTags());
-        if (firstSentence == null || firstSentence.trim().length() == 0) {
-            throw new Error("undocumented method? " + clazz.name() + "." + name + " "
-                    + method.getRawCommentText());
-        }
-        if (firstSentence.startsWith("INTERNAL")) {
+        String raw = method.getRawCommentText();
+        if (firstSentence != null && firstSentence.startsWith("INTERNAL")) {
             return true;
+        }        
+        if ((firstSentence == null || firstSentence.trim().length() == 0) && raw.indexOf("{@inheritDoc}") < 0) {
+            if (!doesOverride(method)) {
+                boolean setterOrGetter = name.startsWith("set") && method.parameters().length == 1;
+                setterOrGetter |= name.startsWith("get") && method.parameters().length == 0;
+                if (isInterface || !setterOrGetter) {
+                    System.out.println("Undocumented method? " + " (" + clazz.name() + ".java:" + method.position().line() +") " + name + " " + raw);
+                    errorCount++;
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+    
+    private boolean doesOverride(MethodDoc method) {
+        ClassDoc clazz = method.containingClass();
+int test;        
+//System.out.println(clazz.name() + ". " + method.name());        
+        ClassDoc[] ifs = clazz.interfaces();
+        int pc = method.parameters().length;
+        String name = method.name();
+        for (int i = 0;; i++) {
+            ClassDoc c;
+            if (i < ifs.length) {
+                c = ifs[i];
+            } else {
+                clazz = clazz.superclass();
+                if (clazz == null) {
+                    break;
+                }
+                c = clazz;
+            }
+            MethodDoc[] ms = c.methods();
+            for (int j = 0; j < ms.length; j++) {
+                MethodDoc m = ms[j];
+//System.out.println("  " + c.name() + ". " + m);        
+                if (m.name().equals(name) && m.parameters().length == pc) {
+//System.out.println("    true");        
+                    return true;
+                }
+            }
         }
+//System.out.println("    false");        
         return false;
     }