NormalizableURL.java

Index Score
		phex.utils
		Phex

View: Reasons, Metrics, Source Code

These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.

Metric	Description
JAVA0034	JAVA0034 Missing braces in if statement
DECL_COMMENTS	Comments in declarations
JAVA0110	JAVA0110 Incorrect javadoc: no @return tag
EXEC_COMMENTS	Comments in executable code
COMPARISONS	Number of comparison operators
LINE_COMMENT	Number of line comments
COMMENTS	Comment lines
DOC_COMMENT	Number of javadoc comment lines
SIZE	Size of the file in bytes
CYCLOMATIC	Cyclomatic complexity
LINES	Number of lines in the source file
LOC	Lines of code
JAVA0177	JAVA0177 Variable declaration missing initializer
ELOC	Effective lines of code
OPERATORS	Number of operators
LOGICAL_LINES	Number of statements
PROGRAM_LENGTH	Halstead program length
JAVA0117	JAVA0117 Missing javadoc: method 'method'
OPERANDS	Number of operands
UNIQUE_OPERATORS	Number of unique operators
RETURNS	Number of return points from functions
PROGRAM_VOLUME	Halstead program volume
JAVA0160	JAVA0160 Method does not throw specified exception
JAVA0126	JAVA0126 Method declares unchecked exception in throws
BLOCKS	Number of blocks
LOOPS	Number of loops
JAVA0100	JAVA0100 Class contains N non-final fields (maximum: M)
JAVA0130	JAVA0130 Non-static method does not use instance fields
NEST_DEPTH	Maximum nesting depth
JAVA0145	JAVA0145 Tab character used in source file

/* * PHEX - The pure-java Gnutella-servent. * Copyright (C) 2001 - 2008 Phex Development Group * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * --- SVN Information --- * $Id: NormalizableURL.java 4228 2008-07-13 17:48:43Z gregork $ */ package phex.utils; //Revision 467222 //Modified Tue Oct 24 03:17:11 2006 UTC (20 months, 2 weeks ago) //http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/catalina/util/URL.java /* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.io.Serializable; import java.net.MalformedURLException; /** * URL is designed to provide public APIs for parsing * and synthesizing Uniform Resource Locators as similar as possible to the * APIs of <code>java.net.URL</code>, but without the ability to open a * stream or connection. One of the consequences of this is that you can * construct URLs for protocols for which a URLStreamHandler is not * available (such as an "https" URL when JSSE is not installed). * * WARNING - This class assumes that the string * representation of a URL conforms to the <code>spec</code> argument * as described in RFC 2396 "Uniform Resource Identifiers: Generic Syntax": * <pre> * <scheme>//<authority><path>?<query>#<fragment> * </pre> * * FIXME - This class really ought to end up in a Commons * package someplace. * * @author Craig R. McClanahan * @version $Revision: 4228 $ $Date: 2008-07-13 13:48:43 -0400 (Sun, 13 Jul 2008) $ */ public final class NormalizableURL implements Serializable { // ----------------------------------------------------------- Constructors /** * Create a URL object from the specified String representation. * * @param spec * String representation of the URL * * @exception MalformedURLException * if the string representation cannot be parsed successfully */ public NormalizableURL(String spec) throws MalformedURLException { this( null, spec ); } /** * Create a URL object by parsing a string representation relative to a * specified context. Based on logic from JDK 1.3.1's * <code>java.net.URL</code>. * * @param context * URL against which the relative representation is resolved * @param spec * String representation of the URL (usually relative) * * @exception MalformedURLException * if the string representation cannot be parsed successfully */ public NormalizableURL(NormalizableURL context, String spec) throws MalformedURLException { String original = spec; int i, limit, c; int start = 0; String newProtocol = null; boolean aRef = false; try { // Eliminate leading and trailing whitespace limit = spec.length(); while ( (limit > 0) && (spec.charAt( limit - 1 ) <= ' ') ) { limit--; } while ( (start < limit) && (spec.charAt( start ) <= ' ') ) { start++; } // If the string representation starts with "url:", skip it if ( spec.regionMatches( true, start, "url:", 0, 4 ) ) { start += 4; } // Is this a ref relative to the context URL? if ( (start < spec.length()) && (spec.charAt( start ) == '#') ) { aRef = true; } // Parse out the new protocol for ( i = start; !aRef && (i < limit) && ((c = spec.charAt( i )) != '/'); i++ ) { if ( c == ':' ) { String s = spec.substring( start, i ).toLowerCase(); // Assume all protocols are valid newProtocol = s; start = i + 1; break; } } // Only use our context if the protocols match protocol = newProtocol; if ( (context != null) && ((newProtocol == null) || newProtocol .equalsIgnoreCase( context.getProtocol() )) ) { // If the context is a hierarchical URL scheme and the spec // contains a matching scheme then maintain backwards // compatibility and treat it as if the spec didn't contain // the scheme; see 5.2.3 of RFC2396 if ( (context.getPath() != null) && (context.getPath().startsWith( "/" )) ) newProtocol = null; if ( newProtocol == null ) { protocol = context.getProtocol(); authority = context.getAuthority(); userInfo = context.getUserInfo(); host = context.getHost(); port = context.getPort(); file = context.getFile(); int question = file.lastIndexOf( "?" ); if ( question < 0 ) path = file; else path = file.substring( 0, question ); } } if ( protocol == null ) throw new MalformedURLException( "no protocol: " + original ); // Parse out any ref portion of the spec i = spec.indexOf( '#', start ); if ( i >= 0 ) { ref = spec.substring( i + 1, limit ); limit = i; } // Parse the remainder of the spec in a protocol-specific fashion parse( spec, start, limit ); if ( context != null ) normalize(); } catch ( MalformedURLException e ) { throw e; } catch ( Exception e ) { throw new MalformedURLException( e.toString() ); } } /** * Create a URL object from the specified components. The default port * number for the specified protocol will be used. * * @param protocol * Name of the protocol to use * @param host * Name of the host addressed by this protocol * @param file * Filename on the specified host * * @exception MalformedURLException * is never thrown, but present for compatible APIs */ public NormalizableURL(String protocol, String host, String file) throws MalformedURLException { this( protocol, host, -1, file ); } /** * Create a URL object from the specified components. Specifying a port * number of -1 indicates that the URL should use the default port for that * protocol. Based on logic from JDK 1.3.1's <code>java.net.URL</code>. * * @param protocol * Name of the protocol to use * @param host * Name of the host addressed by this protocol * @param port * Port number, or -1 for the default port for this protocol * @param file * Filename on the specified host * * @exception MalformedURLException * is never thrown, but present for compatible APIs */ public NormalizableURL(String protocol, String host, int port, String file) throws MalformedURLException { this.protocol = protocol; this.host = host; this.port = port; int hash = file.indexOf( '#' ); this.file = hash < 0 ? file : file.substring( 0, hash ); this.ref = hash < 0 ? null : file.substring( hash + 1 ); int question = file.lastIndexOf( '?' ); if ( question >= 0 ) { query = file.substring( question + 1 ); path = file.substring( 0, question ); } else path = file; if ( (host != null) && (host.length() > 0) ) authority = (port == -1) ? host : host + ":" + port; } // ----------------------------------------------------- Instance Variables /** * The authority part of the URL. */ private String authority = null; /** * The filename part of the URL. */ private String file = null; /** * The host name part of the URL. */ private String host = null; /** * The path part of the URL. */ private String path = null; /** * The port number part of the URL. */ private int port = -1; /** * The protocol name part of the URL. */ private String protocol = null; /** * The query part of the URL. */ private String query = null; /** * The reference part of the URL. */ private String ref = null; /** * The user info part of the URL. */ private String userInfo = null; // --------------------------------------------------------- Public Methods /** * Compare two URLs for equality. The result is <code>true</code> if and * only if the argument is not null, and is a <code>URL</code> object that * represents the same <code>URL</code> as this object. Two * <code>URLs</code> are equal if they have the same protocol and * reference the same host, the same port number on the host, and the same * file and anchor on the host. * * @param obj * The URL to compare against */ public boolean equals(Object obj) { if ( obj == null ) return (false); if ( !(obj instanceof NormalizableURL) ) return (false); NormalizableURL other = (NormalizableURL) obj; if ( !sameFile( other ) ) return (false); return (compare( ref, other.getRef() )); } /** * Return the authority part of the URL. */ public String getAuthority() { return (this.authority); } /** * Return the filename part of the URL. NOTE - For * compatibility with <code>java.net.URL</code>, this value includes the * query string if there was one. For just the path portion, call * <code>getPath()</code> instead. */ public String getFile() { if ( file == null ) return (""); return (this.file); } /** * Return the host name part of the URL. */ public String getHost() { return (this.host); } /** * Return the path part of the URL. */ public String getPath() { if ( this.path == null ) return (""); return (this.path); } /** * Return the port number part of the URL. */ public int getPort() { return (this.port); } /** * Return the protocol name part of the URL. */ public String getProtocol() { return (this.protocol); } /** * Return the query part of the URL. */ public String getQuery() { return (this.query); } /** * Return the reference part of the URL. */ public String getRef() { return (this.ref); } /** * Return the user info part of the URL. */ public String getUserInfo() { return (this.userInfo); } /** * Normalize the <code>path</code> (and therefore <code>file</code>) * portions of this URL. * * NOTE - This method is not part of the public API of * <code>java.net.URL</code>, but is provided as a value added service of * this implementation. * * @exception MalformedURLException * if a normalization error occurs, such as trying to move * about the hierarchical root */ public void normalize() throws MalformedURLException { // Special case for null path if ( path == null ) { if ( query != null ) file = "?" + query; else file = ""; return; } // Create a place for the normalized path String normalized = path; if ( normalized.equals( "/." ) ) { path = "/"; if ( query != null ) file = path + "?" + query; else file = path; return; } // Normalize the slashes and add leading slash if necessary if ( normalized.indexOf( '\\' ) >= 0 ) normalized = normalized.replace( '\\', '/' ); if ( !normalized.startsWith( "/" ) ) normalized = "/" + normalized; // Resolve occurrences of "//" in the normalized path while ( true ) { int index = normalized.indexOf( "//" ); if ( index < 0 ) break; normalized = normalized.substring( 0, index ) + normalized.substring( index + 1 ); } // Resolve occurrences of "/./" in the normalized path while ( true ) { int index = normalized.indexOf( "/./" ); if ( index < 0 ) break; normalized = normalized.substring( 0, index ) + normalized.substring( index + 2 ); } // Resolve occurrences of "/../" in the normalized path while ( true ) { int index = normalized.indexOf( "/../" ); if ( index < 0 ) break; if ( index == 0 ) throw new MalformedURLException( "Invalid relative URL reference" ); int index2 = normalized.lastIndexOf( '/', index - 1 ); normalized = normalized.substring( 0, index2 ) + normalized.substring( index + 3 ); } // Resolve occurrences of "/." at the end of the normalized path if ( normalized.endsWith( "/." ) ) normalized = normalized.substring( 0, normalized.length() - 1 ); // Resolve occurrences of "/.." at the end of the normalized path if ( normalized.endsWith( "/.." ) ) { int index = normalized.length() - 3; int index2 = normalized.lastIndexOf( '/', index - 1 ); if ( index2 < 0 ) throw new MalformedURLException( "Invalid relative URL reference" ); normalized = normalized.substring( 0, index2 + 1 ); } // Return the normalized path that we have completed path = normalized; if ( query != null ) file = path + "?" + query; else file = path; } /** * Compare two URLs, excluding the "ref" fields. Returns <code>true</code> * if this <code>URL</code> and the <code>other</code> argument both * refer to the same resource. The two <code>URLs</code> might not both * contain the same anchor. */ public boolean sameFile(NormalizableURL other) { if ( !compare( protocol, other.getProtocol() ) ) return (false); if ( !compare( host, other.getHost() ) ) return (false); if ( port != other.getPort() ) return (false); if ( !compare( file, other.getFile() ) ) return (false); return (true); } /** * Return a string representation of this URL. This follow the rules in RFC * 2396, Section 5.2, Step 7. */ public String toExternalForm() { StringBuffer sb = new StringBuffer(); if ( protocol != null ) { sb.append( protocol ); sb.append( ":" ); } if ( authority != null ) { sb.append( "//" ); sb.append( authority ); } if ( path != null ) sb.append( path ); if ( query != null ) { sb.append( '?' ); sb.append( query ); } if ( ref != null ) { sb.append( '#' ); sb.append( ref ); } return (sb.toString()); } /** * Return a string representation of this object. */ public String toString() { StringBuffer sb = new StringBuffer( "URL[" ); sb.append( "authority=" ); sb.append( authority ); sb.append( ", file=" ); sb.append( file ); sb.append( ", host=" ); sb.append( host ); sb.append( ", port=" ); sb.append( port ); sb.append( ", protocol=" ); sb.append( protocol ); sb.append( ", query=" ); sb.append( query ); sb.append( ", ref=" ); sb.append( ref ); sb.append( ", userInfo=" ); sb.append( userInfo ); sb.append( "]" ); return (sb.toString()); // return (toExternalForm()); } // -------------------------------------------------------- Private Methods /** * Compare to String values for equality, taking appropriate care if one or * both of the values are <code>null</code>. * * @param first * First string * @param second * Second string */ private boolean compare(String first, String second) { if ( first == null ) { if ( second == null ) return (true); else return (false); } else { if ( second == null ) return (false); else return (first.equals( second )); } } /** * Parse the specified portion of the string representation of a URL, * assuming that it has a format similar to that for <code>http</code>. * * * FIXME - This algorithm can undoubtedly be optimized for * performance. However, that needs to wait until after sufficient unit * tests are implemented to guarantee correct behavior with no regressions. * * * @param spec * String representation being parsed * @param start * Starting offset, which will be just after the ':' (if there is * one) that determined the protocol name * @param limit * Ending position, which will be the position of the '#' (if * there is one) that delimited the anchor * * @exception MalformedURLException * if a parsing error occurs */ private void parse(String spec, int start, int limit) throws MalformedURLException { // Trim the query string (if any) off the tail end int question = spec.lastIndexOf( '?', limit - 1 ); if ( (question >= 0) && (question < limit) ) { query = spec.substring( question + 1, limit ); limit = question; } else { query = null; } // Parse the authority section if ( spec.indexOf( "//", start ) == start ) { int pathStart = spec.indexOf( "/", start + 2 ); if ( (pathStart >= 0) && (pathStart < limit) ) { authority = spec.substring( start + 2, pathStart ); start = pathStart; } else { authority = spec.substring( start + 2, limit ); start = limit; } if ( authority.length() > 0 ) { int at = authority.indexOf( '@' ); if ( at >= 0 ) { userInfo = authority.substring( 0, at ); } int colon = authority.indexOf( ':', at + 1 ); if ( colon >= 0 ) { try { port = Integer.parseInt( authority .substring( colon + 1 ) ); } catch ( NumberFormatException e ) { throw new MalformedURLException( e.toString() ); } host = authority.substring( at + 1, colon ); } else { host = authority.substring( at + 1 ); port = -1; } } } // Parse the path section if ( spec.indexOf( "/", start ) == start ) { // Absolute path path = spec.substring( start, limit ); if ( query != null ) file = path + "?" + query; else file = path; return; } // Resolve relative path against our context's file if ( path == null ) { if ( query != null ) file = "?" + query; else file = null; return; } if ( !path.startsWith( "/" ) ) throw new MalformedURLException( "Base path does not start with '/'" ); if ( !path.endsWith( "/" ) ) path += "/../"; path += spec.substring( start, limit ); if ( query != null ) file = path + "?" + query; else file = path; return; } }

The table below shows all metrics for NormalizableURL.java.

Metric	Value	Description
BLOCKS	58.00	Number of blocks
BLOCK_COMMENT	37.00	Number of block comment lines
COMMENTS	268.00	Comment lines
COMMENT_DENSITY	0.92	Comment density
COMPARISONS	81.00	Number of comparison operators
CYCLOMATIC	98.00	Cyclomatic complexity
DECL_COMMENTS	39.00	Comments in declarations
DOC_COMMENT	198.00	Number of javadoc comment lines
ELOC	291.00	Effective lines of code
EXEC_COMMENTS	23.00	Comments in executable code
EXITS	36.00	Procedure exits
FUNCTIONS	20.00	Number of function declarations
HALSTEAD_DIFFICULTY	128.75	Halstead difficulty
HALSTEAD_EFFORT	0.00	Halstead effort
INTERFACE_COMPLEXITY	57.00	Interface complexity
JAVA0001	0.00	JAVA0001 Package name does not contain only lower case letters
JAVA0002	1.00	JAVA0002 Package name does not begin with a top level domain name or country code
JAVA0003	0.00	JAVA0003 Minimize use of on-demand (.*) imports
JAVA0004	0.00	JAVA0004 Unnecessary import from java.lang
JAVA0005	0.00	JAVA0005 Imports not in specified order
JAVA0006	0.00	JAVA0006 Empty finally block
JAVA0007	0.00	JAVA0007 Should not declare public field
JAVA0008	0.00	JAVA0008 Empty catch block
JAVA0009	0.00	JAVA0009 Protected member in final class
JAVA0010	0.00	JAVA0010 Non-instantiable class does not contain a non-private static member
JAVA0011	0.00	JAVA0011 Abstract class does not contain an abstract method
JAVA0012	0.00	JAVA0012 Non-constructor method with same name as declaring class
JAVA0013	0.00	JAVA0013 Non-blank final field is not static
JAVA0014	0.00	JAVA0014 Class with only static members has non-private constructor
JAVA0015	0.00	JAVA0015 Package class contains public nested type
JAVA0016	0.00	JAVA0016 Abstract class contains public constructor
JAVA0017	0.00	JAVA0017 Class name does not have required form
JAVA0018	0.00	JAVA0018 Method name does not have required form
JAVA0019	0.00	JAVA0019 Interface name does not have required form
JAVA0020	0.00	JAVA0020 Field name does not have required form
JAVA0021	0.00	JAVA0021 Interface method name does not have required form
JAVA0022	0.00	JAVA0022 Static final field name does not have required form
JAVA0023	0.00	JAVA0023 Empty finalize method
JAVA0024	0.00	JAVA0024 Empty class
JAVA0025	0.00	JAVA0025 Method override is empty
JAVA0026	0.00	JAVA0026 Finalize method with parameters
JAVA0029	0.00	JAVA0029 Private method not used
JAVA0030	0.00	JAVA0030 Private field not used
JAVA0031	0.00	JAVA0031 Case statement not properly closed
JAVA0032	0.00	JAVA0032 Switch statement missing default
JAVA0033	0.00	JAVA0033 default: not last case in switch statement
JAVA0034	43.00	JAVA0034 Missing braces in if statement
JAVA0035	0.00	JAVA0035 Missing braces in for statement
JAVA0036	0.00	JAVA0036 Missing braces in while statement
JAVA0038	0.00	JAVA0038 Non-case label in switch statement
JAVA0039	0.00	JAVA0039 Break statement with label
JAVA0040	0.00	JAVA0040 Switch statement contains N cases (maximum: M)
JAVA0041	0.00	JAVA0041 Nested synchronized block
JAVA0042	0.00	JAVA0042 Empty synchronized statement
JAVA0043	0.00	JAVA0043 Inner class does not use outer class
JAVA0044	0.00	JAVA0044 Serializable class with no instance variables
JAVA0045	0.00	JAVA0045 Serializable class with only transient fields
JAVA0046	0.00	JAVA0046 Name of class not derived from Exception ends with 'Exception'
JAVA0047	0.00	JAVA0047 Serializable class derives from invalid base class
JAVA0048	0.00	JAVA0048 Name of class derived from Exception does not end with 'Exception'
JAVA0049	0.00	JAVA0049 Nested block at depth N (maximum: M)
JAVA0050	0.00	JAVA0050 Class derives from java.lang.Error
JAVA0051	0.00	JAVA0051 Class derives from java.lang.RuntimeException
JAVA0052	0.00	JAVA0052 Class derives from java.lang.Throwable
JAVA0053	0.00	JAVA0053 Unused label
JAVA0054	0.00	JAVA0054 Inheritance depth N exceeds maximum M
JAVA0055	0.00	JAVA0055 Class should be interface
JAVA0056	0.00	JAVA0056 Unnecessary abstract modifier for interface or annotation
JAVA0057	0.00	JAVA0057 Unnecessary default constructor
JAVA0058	0.00	JAVA0058 Constructor calls super()
JAVA0059	0.00	JAVA0059 Method override only calls super()
JAVA0061	0.00	JAVA0061 Inaccessible member in anonymous class
JAVA0062	0.00	JAVA0062 Public class missing public member or protected constructor
JAVA0063	0.00	JAVA0063 Identifier name should not contain '$'
JAVA0064	0.00	JAVA0064 N variations of identifier name (maximum: M)
JAVA0065	0.00	JAVA0065 Unnecessary final modifier for method in final class
JAVA0066	0.00	JAVA0066 Unnecessary modifier for interface nested type
JAVA0067	0.00	JAVA0067 Array descriptor on identifier name
JAVA0068	0.00	JAVA0068 Modifiers not declared in recommended order
JAVA0071	0.00	JAVA0071 Strings compared with ==
JAVA0073	0.00	JAVA0073 Integer division in floating-point context
JAVA0074	0.00	JAVA0074 Use of Object.notify()
JAVA0075	0.00	JAVA0075 Method parameter hides field
JAVA0076	0.00	JAVA0076 Use of magic number
JAVA0077	0.00	JAVA0077 Private field not used in declaring class
JAVA0078	0.00	JAVA0078 Floating point values compared with ==
JAVA0079	0.00	JAVA0079 Use of instance to reference static member
JAVA0080	0.00	JAVA0080 Import declaration not used
JAVA0081	0.00	JAVA0081 Boolean literal in comparison
JAVA0082	0.00	JAVA0082 Unnecessary widening cast
JAVA0083	0.00	JAVA0083 Unnecessary instanceof test
JAVA0084	0.00	JAVA0084 Should use compound assignment operator
JAVA0085	0.00	JAVA0085 Use of sun.* class
JAVA0087	0.00	JAVA0087 Use of Thread.sleep()
JAVA0089	0.00	JAVA0089 Use of restricted package
JAVA0092	0.00	JAVA0092 Use of restricted type
JAVA0093	0.00	JAVA0093 Redundant assignment
JAVA0094	0.00	JAVA0094 Field hides a superclass field
JAVA0095	0.00	JAVA0095 Uninitialized private field
JAVA0096	0.00	JAVA0096 Field in nested class hides outer field
JAVA0098	0.00	JAVA0098 Minimize use of implicit field initializers
JAVA0100	1.00	JAVA0100 Class contains N non-final fields (maximum: M)
JAVA0101	0.00	JAVA0101 Unnecessary modifier for field in interface
JAVA0102	0.00	JAVA0102 Last statement in finalize() not super.finalize()
JAVA0103	0.00	JAVA0103 Explicit call to finalize()
JAVA0104	0.00	JAVA0104 finalize() only calls super.finalize()
JAVA0105	0.00	JAVA0105 Duplicate import declaration
JAVA0106	0.00	JAVA0106 Unnecessary import from current package
JAVA0108	1.00	JAVA0108 Incorrect javadoc: no @param tag for 'parameter'
JAVA0109	0.00	JAVA0109 Incorrect javadoc: no parameter 'parameter'
JAVA0110	14.00	JAVA0110 Incorrect javadoc: no @return tag
JAVA0111	0.00	JAVA0111 Incorrect javadoc: @return tag for void method
JAVA0112	0.00	JAVA0112 Incorrect javadoc: no exception 'exception' in throws
JAVA0113	0.00	JAVA0113 Incorrect javadoc: no @author tag
JAVA0114	0.00	JAVA0114 Incorrect javadoc: no @version tag
JAVA0115	0.00	JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception'
JAVA0116	0.00	JAVA0116 Missing javadoc: field 'field'
JAVA0117	0.00	JAVA0117 Missing javadoc: method 'method'
JAVA0118	0.00	JAVA0118 Missing javadoc: type 'type'
JAVA0119	0.00	JAVA0119 Control variable changed within body of for loop
JAVA0123	0.00	JAVA0123 Use all three components of for loop
JAVA0125	0.00	JAVA0125 Continue statement with label
JAVA0126	0.00	JAVA0126 Method declares unchecked exception in throws
JAVA0128	0.00	JAVA0128 Public constructor in non-public class
JAVA0130	1.00	JAVA0130 Non-static method does not use instance fields
JAVA0131	0.00	JAVA0131 Compatible method does not override base
JAVA0132	0.00	JAVA0132 Method overload with compatible signature
JAVA0133	0.00	JAVA0133 Non-synchronized method overrides synchronized method
JAVA0135	1.00	JAVA0135 Only one of Object.equals and Object.hashCode defined: missing 'method'
JAVA0136	0.00	JAVA0136 N methods defined in class (maximum: M)
JAVA0137	0.00	JAVA0137 Non-abstract class missing constructor
JAVA0138	0.00	JAVA0138 N parameters defined for method (maximum: M)
JAVA0139	0.00	JAVA0139 Definition of main other than public static void main(java.lang.String[])
JAVA0141	0.00	JAVA0141 Unnecessary modifier for method in interface
JAVA0143	0.00	JAVA0143 Synchronized method
JAVA0144	0.00	JAVA0144 Line exceeds maximum M characters
JAVA0145	0.00	JAVA0145 Tab character used in source file
JAVA0150	0.00	JAVA0150 java.lang.Error (or subclass) thrown
JAVA0153	0.00	JAVA0153 Inefficient conversion of integer to string
JAVA0159	0.00	JAVA0159 Inefficient conversion of string to integer
JAVA0160	1.00	JAVA0160 Method does not throw specified exception
JAVA0161	0.00	JAVA0161 Conditional wait() not in loop
JAVA0163	0.00	JAVA0163 Empty statement
JAVA0165	0.00	JAVA0165 Conflicting return statement in finally block
JAVA0166	1.00	JAVA0166 Generic exception caught
JAVA0167	0.00	JAVA0167 ThreadDeath not rethrown
JAVA0169	0.00	JAVA0169 Unnecessary catch block: exception 'exception'
JAVA0170	0.00	JAVA0170 Caught exception not derived from java.lang.Exception
JAVA0171	0.00	JAVA0171 Unused local variable
JAVA0173	0.00	JAVA0173 Unused method parameter
JAVA0174	0.00	JAVA0174 Assigned local variable never used
JAVA0175	0.00	JAVA0175 Successive assignment to variable
JAVA0176	0.00	JAVA0176 Local variable name does not have required form
JAVA0177	3.00	JAVA0177 Variable declaration missing initializer
JAVA0179	0.00	JAVA0179 Local variable hides visible field
JAVA0233	0.00	JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID'
JAVA0234	1.00	JAVA0234 Class is Serializable but does not define serialVersionUID
JAVA0235	0.00	JAVA0235 Class defines serialVersionUID but does not implement Serializable
JAVA0236	0.00	JAVA0236 Attempt to clone an object which does not implement Cloneable
JAVA0237	0.00	JAVA0237 Class implements Cloneable but does not have public clone method
JAVA0238	0.00	JAVA0238 Clone method does not call super.clone()
JAVA0239	0.00	JAVA0239 Class declares 'readObject' or 'writeObject' but does not implement Serializable
JAVA0240	0.00	JAVA0240 Serializable class which declares readObject or writeObject but not both
JAVA0241	0.00	JAVA0241 'readObject' or 'writeObject' should be declared private in Serializable class
JAVA0242	0.00	JAVA0242 Transient field in non-Serializable class
JAVA0243	0.00	JAVA0243 'readResolve' or 'writeReplace' should be declared private or protected
JAVA0244	0.00	JAVA0244 Field or method name in subclass differs only by case from inherited field or method
JAVA0245	0.00	JAVA0245 JUnit TestCase with non-trivial constructor
JAVA0246	0.00	JAVA0246 JUnit assertXXX statement missing message parameter
JAVA0247	0.00	JAVA0247 JUnit 'setUp()' and 'tearDown()' should call super method
JAVA0248	0.00	JAVA0248 JUnit method 'setUp' or 'tearDown' with incorrect signature
JAVA0249	0.00	JAVA0249 JUnit TestCase 'suite()' should be declared static
JAVA0250	0.00	JAVA0250 JUnit TestCase declares testXXX method with incorrect signature
JAVA0251	0.00	JAVA0251 Use '%n' for line breaks in printf/format for platform independence
JAVA0252	0.00	JAVA0252 'enum' is a Java 1.5 reserved word
JAVA0253	0.00	JAVA0253 Not all enum constants consumed in switch statement
JAVA0254	0.00	JAVA0254 Use enhanced for loop construct instead of Iterator
JAVA0255	0.00	JAVA0255 Result of method invocation not used
JAVA0256	0.00	JAVA0256 Assignment of external collection/array to field
JAVA0257	0.00	JAVA0257 Use of 'Constant Interface' anti-pattern
JAVA0258	0.00	JAVA0258 Implement Iterable for foreach compatibility
JAVA0259	0.00	JAVA0259 Return of collection/array field
JAVA0260	0.00	JAVA0260 Use 'enum' instead of Enumerated Type pattern
JAVA0261	0.00	JAVA0261 Use specialized Enum collection types
JAVA0262	0.00	JAVA0262 Use of char in integer context
JAVA0263	0.00	JAVA0263 Long literal ends with 'l' instead of 'L'
JAVA0264	0.00	JAVA0264 Integer math in long context - check for overflow
JAVA0265	0.00	JAVA0265 Use of Throwable.printStackTrace()
JAVA0266	0.00	JAVA0266 Use of System.out
JAVA0267	0.00	JAVA0267 Use of System.err
JAVA0269	0.00	JAVA0269 Contents of StringBuffer never used
JAVA0270	0.00	JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array
JAVA0271	0.00	JAVA0271 Minimize use of on-demand (.*) static imports
JAVA0272	0.00	JAVA0272 Thread.run() called
JAVA0273	0.00	JAVA0273 Non-final derivative of Thread calls start() in constructor
JAVA0274	0.00	JAVA0274 Serializable class has a synchronized readObject()
JAVA0275	0.00	JAVA0275 Serializable class has a synchronized writeObject() and no other synchronized methods
JAVA0276	0.00	JAVA0276 Unnecessary use of String constructor
JAVA0277	0.00	JAVA0277 Iterator.next() implementation does not throw NoSuchElementException
JAVA0278	0.00	JAVA0278 Unnecessary use of Boolean constructor
JAVA0279	0.00	JAVA0279 Serialization method readObject or readObjectNoData calls an overridable method
JAVA0280	0.00	JAVA0280 IllegalMonitorStateException caught
JAVA0281	0.00	JAVA0281 Iterator.next() not called in loop
JAVA0282	0.00	JAVA0282 Call to Iterator.next() in loop which does not test Iterator.hasNext()
JAVA0283	0.00	JAVA0283 Control variable not updated in loop body
JAVA0284	0.00	JAVA0284 Explicit garbage collection
JAVA0285	0.00	JAVA0285 Dereference of potentially null variable
JAVA0286	0.00	JAVA0286 Dereference of null variable
JAVA0287	0.00	JAVA0287 Unnecessary null check
JAVA0288	0.00	JAVA0288 Inconsistent null check
LINES	775.00	Number of lines in the source file
LINE_COMMENT	33.00	Number of line comments
LOC	407.00	Lines of code
LOGICAL_LINES	174.00	Number of statements
LOOPS	6.00	Number of loops
NEST_DEPTH	5.00	Maximum nesting depth
OPERANDS	721.00	Number of operands
OPERATORS	1486.00	Number of operators
PARAMS	17.00	Number of formal parameter declarations
PROGRAM_LENGTH	2207.00	Halstead program length
PROGRAM_VOCAB	190.00	Halstead program vocabulary
PROGRAM_VOLUME	0.00	Halstead program volume
RETURNS	40.00	Number of return points from functions
SIZE	23053.00	Size of the file in bytes
UNIQUE_OPERANDS	140.00	Number of unique operands
UNIQUE_OPERATORS	50.00	Number of unique operators
WHITESPACE	100.00	Number of whitespace lines

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NormalizableURL.java