Util.java
| Index Score | ||
|---|---|---|
 |
 |
org.apache.oro.text.regex |
 |
 |
Jakarta ORO |
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 | |
|---|---|---|
| DOC_COMMENT | Number of javadoc comment lines |  |
| COMMENTS | Comment lines | |
| JAVA0177 | JAVA0177 Variable declaration missing initializer | |
| SIZE | Size of the file in bytes | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| PARAMS | Number of formal parameter declarations | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| PROGRAM_VOLUME | Halstead program volume | |
| CYCLOMATIC | Cyclomatic complexity | |
| JAVA0138 | JAVA0138 N parameters defined for method (maximum: M) | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| EXEC_COMMENTS | Comments in executable code | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| COMPARISONS | Number of comparison operators | |
| ELOC | Effective lines of code | |
| BLOCKS | Number of blocks | |
| LOGICAL_LINES | Number of statements | |
| LOC | Lines of code | |
| LINE_COMMENT | Number of line comments | |
| RETURNS | Number of return points from functions | |
| OPERATORS | Number of operators | |
| PROGRAM_LENGTH | Halstead program length | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| WHITESPACE | Number of whitespace lines | |
| OPERANDS | Number of operands | |
| FUNCTIONS | Number of function declarations | |
| LOOPS | Number of loops | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
/*
* $Id: Util.java 124053 2005-01-04 01:24:35Z dfs $
*
* Copyright 2000-2005 The Apache Software Foundation
*
* Licensed 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.
*/
package org.apache.oro.text.regex;
import java.util.*;
/**
* The Util class is a holder for useful static utility methods that can
* be generically applied to Pattern and PatternMatcher instances.
* This class cannot and is not meant to be instantiated.
* The Util class currently contains versions of the split() and substitute()
* methods inspired by Perl's split function and <b>s</b> operation
* respectively, although they are implemented in such a way as not to
* rely on the Perl5 implementations of the OROMatcher packages regular
* expression interfaces. They may operate on any interface implementations
* conforming to the OROMatcher API specification for the PatternMatcher,
* Pattern, and MatchResult interfaces. Future versions of the class may
* include additional utility methods.
* <p>
* A grep method is not included for two reasons:
* <ol>
* <li> The details of reading a line at a time from an input stream
* differ in JDK 1.0.2 and JDK 1.1, making it difficult to
* retain compatibility across both Java releases.
* <li> Grep style processing is trivial for the programmer to implement
* in a while loop. Rarely does anyone want to retrieve all
* occurences of a pattern and then process them. More often a
* programmer will retrieve pattern matches and process them as they
* are retrieved, which is more efficient than storing them all in a
* Vector and then accessing them.
* </ol>
*
* @version @version@
* @since 1.0
* @see Pattern
* @see PatternMatcher
*/
public final class Util {
/**
* A constant passed to the {@link #substitute substitute()}
* methods indicating that all occurrences of a pattern should be
* substituted.
*/
public static final int SUBSTITUTE_ALL = -1;
/**
* A constant passed to the {@link #split split()} methods
* indicating that all occurrences of a pattern should be used to
* split a string.
*/
public static final int SPLIT_ALL = 0;
/**
* The default destructor for the Util class. It is made private
* to prevent the instantiation of the class.
*/
private Util() { }
/**
* Splits up a <code>String</code> instance and stores results as a
* <code>List</code> of substrings numbering no more than a specified
* limit. The string is split with a regular expression as the delimiter.
* The <b>limit</b> parameter essentially says to split the
* string only on at most the first <b>limit - 1</b> number of pattern
* occurences.
* <p>
* This method is inspired by the Perl split() function and behaves
* identically to it when used in conjunction with the Perl5Matcher and
* Perl5Pattern classes except for the following difference:
* <ul><p>
* In Perl, if the split expression contains parentheses, the split()
* method creates additional list elements from each of the matching
* subgroups in the pattern. In other words:
* <ul><p>
* <code>split(list, "/([,-])/", "8-12,15,18", Util.SPLIT_ALL)</code></ul>
* <p> produces the list containing:
* <ul><p><code> { "8", "-", "12", ",", "15", ",", "18" } </code> </ul>
* <p> The OROMatcher split method does not follow this behavior. The
* following list would be produced by OROMatcher:
* <ul><p><code> { "8", "12", "15", "18" } </code> </ul>
* <p> To obtain the Perl behavior, use
* {@link org.apache.oro.text.perl.Perl5Util#split}.
* </ul>
* <p>
* @param results A Collection to which the split results are appended.
* After the method returns, it contains the substrings of the input
* that occur between the regular expression delimiter occurences.
* The input will not be split into any more substrings than the
* specified <code>limit</code>. A way of thinking of this is that
* only the first <code>limit - 1</code> matches of the delimiting
* regular expression will be used to split the input.
* @param matcher The regular expression matcher to execute the split.
* @param pattern The regular expression to use as a split delimiter.
* @param input The <code>String</code> to split.
* @param limit The limit on the number of resulting split elements.
* Values <= 0 produce the same behavior as using the
* <b>SPLIT_ALL</b> constant which causes the limit to be
* ignored and splits to be performed on all occurrences of
* the pattern. You should use the <b>SPLIT_ALL</b> constant
* to achieve this behavior instead of relying on the default
* behavior associated with non-positive limit values.
* @since 2.0
*/
public static void split(Collection results, PatternMatcher matcher,
Pattern pattern, String input, int limit)
{
int beginOffset;
MatchResult currentResult;
PatternMatcherInput pinput;
pinput = new PatternMatcherInput(input);
beginOffset = 0;
while(--limit != 0 && matcher.contains(pinput, pattern)) {
currentResult = matcher.getMatch();
results.add(input.substring(beginOffset,
currentResult.beginOffset(0)));
beginOffset = currentResult.endOffset(0);
}
results.add(input.substring(beginOffset, input.length()));
}
/**
* Splits up a <code>String</code> instance and stores results as a
* <code>Collection</code> of all its substrings using a regular expression
* as the delimiter.
* This method is inspired by the Perl split() function and behaves
* identically to it when used in conjunction with the Perl5Matcher and
* Perl5Pattern classes except for the following difference:
* <p>
* <ul>
* In Perl, if the split expression contains parentheses, the split()
* method creates additional list elements from each of the matching
* subgroups in the pattern. In other words:
* <ul><p><code>split(list, "/([,-])/", "8-12,15,18")</code></ul>
* <p> produces the list containing:
* <ul><p><code> { "8", "-", "12", ",", "15", ",", "18" } </code> </ul>
* <p> The OROMatcher split method does not follow this behavior. The
* following list would be produced by OROMatcher:
* <ul><p><code> { "8", "12", "15", "18" } </code> </ul>
* <p> To obtain the Perl behavior, use
* {@link org.apache.oro.text.perl.Perl5Util#split}.
* </ul>
* <p>
* This method is identical to calling:
* <blockquote><pre>
* split(matcher, pattern, input, Util.SPLIT_ALL);
* </pre></blockquote>
* <p>
* @param results A <code>Collection</code> to which all the substrings of
* the input that occur between the regular expression delimiter
* occurences are appended.
* @param matcher The regular expression matcher to execute the split.
* @param pattern The regular expression to use as a split delimiter.
* @param input The <code>String</code> to split.
* @since 2.0
*/
public static void split(Collection results, PatternMatcher matcher,
Pattern pattern, String input)
{
split(results, matcher, pattern, input, SPLIT_ALL);
}
/**
* Splits up a <code>String</code> instance into strings contained in a
* <code>Vector</code> of size not greater than a specified limit. The
* string is split with a regular expression as the delimiter.
* The <b>limit</b> parameter essentially says to split the
* string only on at most the first <b>limit - 1</b> number of pattern
* occurences.
* <p>
* This method is inspired by the Perl split() function and behaves
* identically to it when used in conjunction with the Perl5Matcher and
* Perl5Pattern classes except for the following difference:
* <ul><p>
* In Perl, if the split expression contains parentheses, the split()
* method creates additional list elements from each of the matching
* subgroups in the pattern. In other words:
* <ul><p><code>split("/([,-])/", "8-12,15,18")</code></ul>
* <p> produces the Vector containing:
* <ul><p><code> { "8", "-", "12", ",", "15", ",", "18" } </code> </ul>
* <p> The OROMatcher split method does not follow this behavior. The
* following Vector would be produced by OROMatcher:
* <ul><p><code> { "8", "12", "15", "18" } </code> </ul>
* <p> To obtain the Perl behavior, use
* {@link org.apache.oro.text.perl.Perl5Util#split}.
* </ul>
* <p>
* @deprecated Use
* {@link #split(Collection, PatternMatcher, Pattern, String, int)} instead.
* @param matcher The regular expression matcher to execute the split.
* @param pattern The regular expression to use as a split delimiter.
* @param input The <code>String</code> to split.
* @param limit The limit on the size of the returned <code>Vector</code>.
* Values <= 0 produce the same behavior as using the
* <b>SPLIT_ALL</b> constant which causes the limit to be
* ignored and splits to be performed on all occurrences of
* the pattern. You should use the <b>SPLIT_ALL</b> constant
* to achieve this behavior instead of relying on the default
* behavior associated with non-positive limit values.
* @return A <code>Vector</code> containing the substrings of the input
* that occur between the regular expression delimiter occurences.
* The input will not be split into any more substrings than the
* specified <code>limit</code>. A way of thinking of this is that
* only the first <code>limit - 1</code> matches of the delimiting
* regular expression will be used to split the input.
* @since 1.0
*/
public static Vector split(PatternMatcher matcher, Pattern pattern,
String input, int limit)
{
Vector results = new Vector(20);
split(results, matcher, pattern, input, limit);
return results;
}
/**
* Splits up a <code>String</code> instance into a <code>Vector</code>
* of all its substrings using a regular expression as the delimiter.
* This method is inspired by the Perl split() function and behaves
* identically to it when used in conjunction with the Perl5Matcher and
* Perl5Pattern classes except for the following difference:
* <p>
* <ul>
* In Perl, if the split expression contains parentheses, the split()
* method creates additional list elements from each of the matching
* subgroups in the pattern. In other words:
* <ul><p><code>split("/([,-])/", "8-12,15,18")</code></ul>
* <p> produces the Vector containing:
* <ul><p><code> { "8", "-", "12", ",", "15", ",", "18" } </code> </ul>
* <p> The OROMatcher split method does not follow this behavior. The
* following Vector would be produced by OROMatcher:
* <ul><p><code> { "8", "12", "15", "18" } </code> </ul>
* <p> To obtain the Perl behavior, use
* {@link org.apache.oro.text.perl.Perl5Util#split}.
* </ul>
* <p>
* This method is identical to calling:
* <blockquote><pre>
* split(matcher, pattern, input, Util.SPLIT_ALL);
* </pre></blockquote>
* <p>
* @deprecated Use
* {@link #split(Collection, PatternMatcher, Pattern, String)} instead.
* @param matcher The regular expression matcher to execute the split.
* @param pattern The regular expression to use as a split delimiter.
* @param input The <code>String</code> to split.
* @return A <code>Vector</code> containing all the substrings of the input
* that occur between the regular expression delimiter occurences.
* @since 1.0
*/
public static Vector split( PatternMatcher matcher, Pattern pattern,
String input)
{
return split(matcher, pattern, input, SPLIT_ALL);
}
/**
* Searches a string for a pattern and replaces the first occurrences
* of the pattern with a Substitution up to the number of
* substitutions specified by the <b>numSubs</b> parameter. A
* <b>numSubs</b> value of <b>SUBSTITUTE_ALL</b> will cause all occurrences
* of the pattern to be replaced.
* <p>
* @param matcher The regular expression matcher to execute the pattern
* search.
* @param pattern The regular expression to search for and substitute
* occurrences of.
* @param sub The Substitution used to substitute pattern occurences.
* @param input The <code>String</code> on which to perform substitutions.
* @param numSubs The number of substitutions to perform. Only the
* first <b> numSubs </b> patterns encountered are
* substituted. If you want to substitute all occurences
* set this parameter to <b> SUBSTITUTE_ALL </b>.
* @return A String comprising the input string with the substitutions,
* if any, made. If no substitutions are made, the returned String
* is the original input String.
* @since 1.0
*/
public static String substitute(PatternMatcher matcher, Pattern pattern,
Substitution sub, String input, int numSubs)
{
StringBuffer buffer = new StringBuffer(input.length());
PatternMatcherInput pinput = new PatternMatcherInput(input);
// Users have indicated that they expect the result to be the
// original input string, rather than a copy, if no substitutions
// are performed,
if(substitute(buffer, matcher, pattern, sub, pinput, numSubs) != 0)
return buffer.toString();
return input;
}
/**
* Searches a string for a pattern and substitutes only the first
* occurence of the pattern.
* <p>
* This method is identical to calling:
* <blockquote><pre>
* substitute(matcher, pattern, sub, input, 1);
* </pre></blockquote>
* <p>
* @param matcher The regular expression matcher to execute the pattern
* search.
* @param pattern The regular expression to search for and substitute
* occurrences of.
* @param sub The Substitution used to substitute pattern occurences.
* @param input The <code>String</code> on which to perform substitutions.
* @return A String comprising the input string with the substitutions,
* if any, made. If no substitutions are made, the returned String
* is the original input String.
* @since 1.0
*/
public static String substitute(PatternMatcher matcher, Pattern pattern,
Substitution sub, String input)
{
return substitute(matcher, pattern, sub, input, 1);
}
/**
* Searches a string for a pattern and replaces the first occurrences
* of the pattern with a Substitution up to the number of
* substitutions specified by the <b>numSubs</b> parameter. A
* <b>numSubs</b> value of <b>SUBSTITUTE_ALL</b> will cause all occurrences
* of the pattern to be replaced. The number of substitutions made
* is returned.
* <p>
* @param result The StringBuffer in which to store the result of the
* substitutions. The buffer is only appended to.
* @param matcher The regular expression matcher to execute the pattern
* search.
* @param pattern The regular expression to search for and substitute
* occurrences of.
* @param sub The Substitution used to substitute pattern occurences.
* @param input The input on which to perform substitutions.
* @param numSubs The number of substitutions to perform. Only the
* first <b> numSubs </b> patterns encountered are
* substituted. If you want to substitute all occurences
* set this parameter to <b> SUBSTITUTE_ALL </b>.
* @return The number of substitutions made.
* @since 2.0.6
*/
public static int substitute(StringBuffer result,
PatternMatcher matcher, Pattern pattern,
Substitution sub, String input,
int numSubs)
{
PatternMatcherInput pinput = new PatternMatcherInput(input);
return substitute(result, matcher, pattern, sub, pinput, numSubs);
}
/**
* Searches a string for a pattern and replaces the first occurrences
* of the pattern with a Substitution up to the number of
* substitutions specified by the <b>numSubs</b> parameter. A
* <b>numSubs</b> value of <b>SUBSTITUTE_ALL</b> will cause all occurrences
* of the pattern to be replaced. The number of substitutions made
* is returned.
* <p>
* @param result The StringBuffer in which to store the result of the
* substitutions. The buffer is only appended to.
* @param matcher The regular expression matcher to execute the pattern
* search.
* @param pattern The regular expression to search for and substitute
* occurrences of.
* @param sub The Substitution used to substitute pattern occurences.
* @param input The input on which to perform substitutions.
* @param numSubs The number of substitutions to perform. Only the
* first <b> numSubs </b> patterns encountered are
* substituted. If you want to substitute all occurences
* set this parameter to <b> SUBSTITUTE_ALL </b>.
* @return The number of substitutions made.
* @since 2.0.3
*/
public static int substitute(StringBuffer result,
PatternMatcher matcher, Pattern pattern,
Substitution sub, PatternMatcherInput input,
int numSubs)
{
int beginOffset, subCount;
char[] inputBuffer;
subCount = 0;
beginOffset = input.getBeginOffset();
inputBuffer = input.getBuffer();
// Must be != 0 because SUBSTITUTE_ALL is represented by -1.
// Do NOT change to numSubs > 0.
while(numSubs != 0 && matcher.contains(input, pattern)) {
--numSubs;
++subCount;
result.append(inputBuffer, beginOffset,
input.getMatchBeginOffset() - beginOffset);
sub.appendSubstitution(result, matcher.getMatch(), subCount,
input, matcher, pattern);
beginOffset = input.getMatchEndOffset();
}
result.append(inputBuffer, beginOffset, input.length() - beginOffset);
return subCount;
}
}
The table below shows all metrics for Util.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 11.00 | Number of blocks | |
| BLOCK_COMMENT | 17.00 | Number of block comment lines | |
| COMMENTS | 315.00 | Comment lines | |
| COMMENT_DENSITY | 4.85 | Comment density | |
| COMPARISONS | 7.00 | Number of comparison operators | |
| CYCLOMATIC | 14.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 13.00 | Comments in declarations | |
| DOC_COMMENT | 293.00 | Number of javadoc comment lines | |
| ELOC | 65.00 | Effective lines of code | |
| EXEC_COMMENTS | 2.00 | Comments in executable code | |
| EXITS | 19.00 | Procedure exits | |
| FUNCTIONS | 9.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 38.23 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 47.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 0.00 | 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 | 1.00 | 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 | 0.00 | 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 | 0.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 0.00 | 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 | 1.00 | 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 | 0.00 | 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 | 0.00 | 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 | 2.00 | 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 | 47.00 | 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 | 0.00 | 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 | 0.00 | 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 | 6.00 | 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 | 0.00 | 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 | 426.00 | Number of lines in the source file | |
| LINE_COMMENT | 5.00 | Number of line comments | |
| LOC | 84.00 | Lines of code | |
| LOGICAL_LINES | 37.00 | Number of statements | |
| LOOPS | 2.00 | Number of loops | |
| NEST_DEPTH | 2.00 | Maximum nesting depth | |
| OPERANDS | 237.00 | Number of operands | |
| OPERATORS | 329.00 | Number of operators | |
| PARAMS | 37.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 566.00 | Halstead program length | |
| PROGRAM_VOCAB | 123.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 10.00 | Number of return points from functions | |
| SIZE | 18871.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 93.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 30.00 | Number of unique operators | |
| WHITESPACE | 27.00 | Number of whitespace lines | |