Preprocessor.java
| Index Score | ||
|---|---|---|
 |
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antenna.preprocessor.v2 |
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 |
EclipseME |
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 | |
|---|---|---|
| RETURNS | Number of return points from functions |  |
| INTERFACE_COMPLEXITY | Interface complexity | |
| EXITS | Procedure exits | |
| CYCLOMATIC | Cyclomatic complexity | |
| LOC | Lines of code | |
| JAVA0049 | JAVA0049 Nested block at depth N (maximum: M) | |
| JAVA0071 | JAVA0071 Strings compared with == | |
| BLOCKS | Number of blocks | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| LOGICAL_LINES | Number of statements | |
| JAVA0130 | JAVA0130 Non-static method does not use instance fields | |
| PROGRAM_LENGTH | Halstead program length | |
| OPERANDS | Number of operands | |
| OPERATORS | Number of operators | |
| UNIQUE_OPERANDS | Number of unique operands | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| ELOC | Effective lines of code | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| PARAMS | Number of formal parameter declarations | |
| LINES | Number of lines in the source file | |
| COMPARISONS | Number of comparison operators | |
| FUNCTIONS | Number of function declarations | |
| JAVA0116 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
| NEST_DEPTH | Maximum nesting depth | |
| SIZE | Size of the file in bytes | |
| JAVA0144 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0173 | JAVA0173 Unused method parameter | |
| JAVA0040 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| UNIQUE_OPERATORS | Number of unique operators | |
| JAVA0177 | JAVA0177 Variable declaration missing initializer | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0160 | JAVA0160 Method does not throw specified exception | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0265 | JAVA0265 Use of Throwable.printStackTrace() | |
| LOOPS | Number of loops | |
| JAVA0007 | JAVA0007 Should not declare public field | |
| JAVA0100 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0267 | JAVA0267 Use of System.err | |
| COMMENTS | Comment lines | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| DOC_COMMENT | Number of javadoc comment lines | |
package antenna.preprocessor.v2;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.util.Stack;
import java.util.Vector;
import antenna.preprocessor.v2.parser.APPLexer;
import antenna.preprocessor.v2.parser.APPLexerTokenTypes;
import antenna.preprocessor.v2.parser.APPParser;
import antenna.preprocessor.v2.parser.Defines;
import antenna.preprocessor.v2.parser.HelperLexer;
import antenna.preprocessor.v2.parser.HelperParser;
import antenna.preprocessor.v2.parser.PPLineAST;
import antlr.ANTLRException;
import antlr.CommonAST;
import antlr.RecognitionException;
import antlr.TokenStreamException;
import antlr.collections.AST;
/**
* omry 18/02/2007
*/
public class Preprocessor
{
public static final int STATE_NO_CONDITIONAL = 0;
public static final int STATE_CAN_BECOME_TRUE = 1;
public static final int STATE_IS_TRUE = 2;
public static final int STATE_HAS_BEEN_TRUE = 3;
private Stack m_statsStack;
private int m_currentState;
private boolean m_verbose = false;
private Defines m_defines;
private File m_file;
public ILogger m_logger;
public ILineFilter m_lineFilter;
private IPreprocessorListener m_listener;
/**
* true if the current file is disabled by the //#condition directive at the first line.
*/
private boolean m_disabledByCondition = false;
/**
* true if the next line should be hidden due to a //#debug directive.
*/
private boolean m_debugHideNextLine = false;
private int m_currentMdebugBlockStart = -1;
private boolean m_insideHiddenMdebugBlock = false;
/**
* true if we modified the lines vector
*/
private boolean m_modified;
public Preprocessor(ILogger logger, ILineFilter lineFilter)
{
m_logger = logger;
m_lineFilter = lineFilter;
m_defines = new Defines(lineFilter);
}
public void setListener(IPreprocessorListener listener)
{
m_listener = listener;
}
public void setFile(File fileName)
{
m_file = fileName;
}
public void addDefines(String symbols) throws PPException
{
try
{
m_defines.addDefines(symbols);
}
catch (ANTLRException e)
{
throw new PPException("Error evaluating symbols \"" + symbols + "\"", e);
}
}
public void addDefines(InputStream in) throws IOException, PPException
{
try
{
m_defines.loadDefines(in);
}
catch (ANTLRException e)
{
throw new PPException("Error evaluating symbols from input stream" , e);
}
}
public void addDefines(File file) throws IOException, PPException
{
try
{
m_defines.loadDefines(file);
}
catch (ANTLRException e)
{
throw new PPException("Error evaluating symbols from file " + file, e);
}
}
private void log(String msg)
{
if (m_verbose)
{
if (m_logger != null)
{
m_logger.log(msg);
}
else
{
System.err.println(msg);
}
}
}
public boolean preprocess(InputStream in, OutputStream out, String encoding) throws IOException, PPException
{
Vector lines = new Vector();
loadStrings(lines, in, encoding);
boolean changed = preprocess(lines, encoding);
saveStrings(lines, out, encoding);
return changed;
}
public static void saveStrings(Vector lines, OutputStream out, String encoding) throws IOException
{
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(out, encoding));
try
{
int size = lines.size();
for (int i = 0; i < size; i++)
{
writer.write((String)lines.get(i));
writer.newLine();
}
}
finally
{
writer.close();
}
}
public static void loadStrings(Vector lines, InputStream in, String encoding) throws IOException
{
BufferedReader reader = new BufferedReader(new InputStreamReader(in, encoding));
String s;
while ((s = reader.readLine()) != null)
{
lines.add(s);
}
reader.close();
}
public boolean preprocess(Vector lines, String encoding) throws IOException, PPException
{
try
{
return preprocessImpl(lines, encoding);
}
catch (IOException e)
{
if (m_listener != null)
{
m_listener.error(e, -1,-1,-1);
}
throw e;
}
catch (PPException e)
{
e.printStackTrace();
if (m_listener != null)
{
int lineNumber = e.getLineNumber();
int ln = lineNumber != PPException.UNKNOWN_LINE ? (lineNumber + 1) : lineNumber;
m_listener.error(e, ln, -1, -1);
return false;
}
else
{
// only throw if we didn't report to a listener.
throw e;
}
}
}
private boolean preprocessImpl(Vector lines, String encoding) throws IOException, PPException
{
m_modified = false;
m_statsStack = new Stack();
m_currentState = STATE_NO_CONDITIONAL;
m_disabledByCondition = false;
CommandEvaluator eval = new CommandEvaluator(m_defines);
int i = 0;
while (i < lines.size())
{
// System.out.println("(" + i + ") " + lines.get(i));
String line = (String) lines.get(i);
if (m_lineFilter != null)
{
line = m_lineFilter.filter(line);
}
PPLine lp = new PPLine(m_file, line, i);
try
{
if (lp.getType() == PPLine.TYPE_VISIBLE || lp.getType() == PPLine.TYPE_HIDDEN)
{
if (isBlind())
{
String l = commentLine(lp);
if (!l.equals(line))
m_modified = true;
lines.set(i, l);
if (isVerbose())
{
log("(+)" + l);
}
}
else
{
// true to replace the current line, false to insert it.
boolean replace = true;
String str = uncommentLine(lp);
if (!str.equals(line))
m_modified = true;
if (replace)
{
lines.set(i, str);
}
else
{
lines.insertElementAt(str, i);
}
if (isVerbose())
{
log("(-)" + str);
}
}
// reset debug hide for next line.
m_debugHideNextLine = false;
}
else
{
CommonAST ast = getAST(lp);
int includeLine = i; // for error handling
// if type is include,
// look for the endinclude, while removing the lines between the include and the endinclude.
if (ast.getType() == APPLexerTokenTypes.LITERAL_include)
{
boolean foundEndInclude = false;
i++;
int currentLine = i;
while (i < lines.size())
{
PPLine lp2 = new PPLine(m_file, (String) lines.get(i), currentLine);
if (lp2.getType() == PPLine.TYPE_COMMAND)
{
CommonAST ast2 = getAST(lp2);
if (ast2.getType() == APPLexerTokenTypes.LITERAL_endinclude)
{
foundEndInclude = true;
break;
}
}
lines.remove(i);
currentLine++;
}
if (!foundEndInclude)
{
throw new PPException("Missing #endinclude", m_file, includeLine);
}
String file = getIncludeName(line);
Vector includeLines = loadIncludedFile(includeLine, file, encoding);
if (includeLines != null)
{
Preprocessor includePreprocessor = new Preprocessor(m_logger, m_lineFilter);
includePreprocessor.setFile(m_file);
includePreprocessor.setListener(m_listener);
// make a copy to be sure changes (defines, undefine does not effect including file).
includePreprocessor.m_defines = m_defines.copy();
includePreprocessor.preprocess(includeLines, encoding);
for (int k = 0; k < includeLines.size(); k++)
{
String s = (String) includeLines.get(k);
PPLine lp2 = new PPLine(m_file, s, k);
if (isBlind())
{
s = commentLine(lp2);
}
lines.insertElementAt(s, i);
i++;
m_modified = true;
}
}
}
else
{
handleCommand(lines, lp, ast, eval, encoding,i+1 == lines.size());
}
}
}
catch (IllegalStateException e)
{
throw new PPException(e.getMessage(), m_file, e, i);
}
catch (ANTLRException e)
{
throw new PPException("Error parsing line : " + line, m_file, e, i);
}
i++;
}
if (m_currentState != STATE_NO_CONDITIONAL)
{
throw new PPException("Missing #endif", m_file, -1);
}
if (m_insideHiddenMdebugBlock)
{
throw new PPException("Missing #enddebug", m_file, m_currentMdebugBlockStart);
}
return m_modified;
}
/**
* Returns a literal pattern <code>String</code> for the specified
* <code>String</code>.
*
* <p>This method produces a <code>String</code> that can be used to
* create a <code>Pattern</code> that would match the string
* <code>s</code> as if it were a literal pattern.</p> Metacharacters
* or escape sequences in the input sequence will be given no special
* meaning.
*
* @param s The string to be literalized
* @return A literal string replacement
* taken from jdk 1.5
*/
public static String regExpQuote(String s) {
int slashEIndex = s.indexOf("\\E");
if (slashEIndex == -1)
return "\\Q" + s + "\\E";
StringBuilder sb = new StringBuilder(s.length() * 2);
sb.append("\\Q");
slashEIndex = 0;
int current = 0;
while ((slashEIndex = s.indexOf("\\E", current)) != -1) {
sb.append(s.substring(current, slashEIndex));
current = slashEIndex + 2;
sb.append("\\E\\\\E\\Q");
}
sb.append(s.substring(current, s.length()));
sb.append("\\E");
return sb.toString();
}
private String toTemplate(String line)
{
// replace %VARIABLE% macors with regexp to match them (.*)
return "\\s*"+regExpQuote(line.trim()).replaceAll("%.*%", "\\\\E\\.\\*\\\\Q") + "\\s*";
}
/**
* an ugly function
* @throws TokenStreamException
* @throws RecognitionException
*/
private String getIncludeName(String line) throws RecognitionException, TokenStreamException
{
HelperParser p = new HelperParser(new HelperLexer(new java.io.StringReader(line)));
p.line();
AST ast = p.getAST();
ast = ast.getNextSibling(); // skip //#
ast = ast.getNextSibling(); // skip include
String text = ast.getText();
return text;
}
private String getExpandLine(PPLine line)
{
String prevLine = line.getText();
String tok = APPParser._tokenNames[APPParser.LITERAL_expand];
tok = tok.substring(1, tok.length() - 1); // strip quotes
prevLine = prevLine.substring(tok.length());
if (prevLine.charAt(0) == ' ' || prevLine.charAt(0) == '\t')
{
prevLine = prevLine.substring(1);
}
return line.getSpace() + prevLine;
}
private CommonAST getAST(PPLine lp) throws PPException
{
APPLexer lexer = new APPLexer(new java.io.StringReader(lp.getSource()));
APPParser parser = new APPParser(lexer);
parser.setASTNodeClass(PPLineAST.class.getName());
try
{
parser.line();
}
catch (ANTLRException e)
{
throw new PPException("Error parsing " + lp.getSource(), lp.getFileName(), e, lp.getLineNumber());
}
CommonAST ast = (CommonAST) parser.getAST();
// skip comment prefix.
ast = (CommonAST) ast.getNextSibling();
return ast;
}
private Vector loadIncludedFile(int lineNum, String file, String encoding) throws PPException
{
File f;
if (new File(file).isAbsolute())
{
f = new File(file);
}
else
{
File parent = m_file.getParentFile();
f = new File(parent, file);
}
if (!f.exists()) throw new PPException("File not found : " + f,m_file, lineNum);
Vector v = new Vector();
try
{
loadStrings(v, new FileInputStream(f), encoding);
return v;
}
catch (IOException e)
{
throw new PPException("Error loading include file " + file, m_file, e, lineNum);
}
}
private void pushState()
{
m_statsStack.push(new Integer(m_currentState));
}
private void popState()
{
m_currentState = ((Integer) m_statsStack.pop()).intValue();
}
public boolean isBlind()
{
return m_currentState == STATE_CAN_BECOME_TRUE || m_currentState == STATE_HAS_BEEN_TRUE
|| m_disabledByCondition || m_debugHideNextLine || m_insideHiddenMdebugBlock;
}
public boolean isVerbose()
{
return m_verbose;
}
public void setVerbose(boolean verbose)
{
m_verbose = verbose;
}
String commentLine(PPLine lp)
{
if (lp.getType() == PPLine.TYPE_VISIBLE || (lp.prefixChar() != PPLine.HIDDEN_LINE_COMMENT_CHAR && lp.getType() != PPLine.TYPE_COMMAND))
{
return "//" + PPLine.HIDDEN_LINE_COMMENT_CHAR + lp.getSpace() + lp.getText();
}
else
{
return lp.getSource();
}
}
String uncommentLine(PPLine lp)
{
return lp.getSpace() + lp.getText();
}
/**
* Handles a new "IF"-like command. The old state is pushed on the stack, a new "scope" is entered.
*/
private void handleIf(boolean condition)
{
pushState();
if (!isBlind())
{
if (condition)
{
m_currentState = STATE_IS_TRUE;
}
else
{
m_currentState = STATE_CAN_BECOME_TRUE;
}
}
else
{
m_currentState = STATE_HAS_BEEN_TRUE;
}
}
private void handleElseIf(boolean condition)
{
if (m_currentState == STATE_NO_CONDITIONAL)
{
throw new IllegalStateException("Unexpected #elif");
}
else if (m_currentState == STATE_CAN_BECOME_TRUE)
{
if (condition)
m_currentState = STATE_IS_TRUE;
}
else if (m_currentState == STATE_IS_TRUE)
{
m_currentState = STATE_HAS_BEEN_TRUE;
}
}
private void handleElse()
{
if (m_currentState == STATE_NO_CONDITIONAL)
{
throw new IllegalStateException("Unexpected #else");
}
else if (m_currentState == STATE_CAN_BECOME_TRUE)
{
m_currentState = STATE_IS_TRUE;
}
else if (m_currentState == STATE_IS_TRUE)
{
m_currentState = STATE_HAS_BEEN_TRUE;
}
}
private void handleEndIf()
{
if (m_currentState == STATE_NO_CONDITIONAL)
{
throw new IllegalStateException("Unexpected #endif");
}
else
{
popState();
}
}
private void handleCommand(Vector lines, PPLine ppl, AST ast, CommandEvaluator evaluator, String encoding, boolean lastLine) throws ANTLRException,
PPException, UnsupportedEncodingException
{
if (isVerbose())
{
log("(?)" + ppl.getSource());
}
int type = ast.getType();
switch (type)
{
case APPParser.LITERAL_define:
case APPParser.LITERAL_undefine:
{
if (!isBlind())
{
evaluator.evaluate(ppl, ast, m_listener);
}
}
break;
case APPParser.LITERAL_if:
case APPParser.LITERAL_ifdef:
case APPParser.LITERAL_ifndef:
{
boolean r = evaluator.evaluate(ppl, ast, m_listener);
handleIf(r);
}
break;
case APPParser.LITERAL_condition:
{
if (ppl.getLineNumber() != 0) throw new PPException("//#condition is only allowed in the first line of the file", m_file, ppl.getLineNumber());
boolean r = evaluator.evaluate(ppl, ast, m_listener);
handleCondition(r);
}
break;
case APPParser.LITERAL_elif:
case APPParser.LITERAL_elifdef:
case APPParser.LITERAL_elifndef:
{
boolean r = evaluator.evaluate(ppl, ast, m_listener);
handleElseIf(r);
}
break;
case APPParser.LITERAL_else:
handleElse();
break;
case APPParser.LITERAL_endif:
handleEndIf();
break;
case APPParser.LITERAL_debug:
{
boolean show = evaluator.evaluate(ppl, ast, m_listener);
m_debugHideNextLine = !show;
}
break;
case APPParser.LITERAL_mdebug:
boolean show = evaluator.evaluate(ppl, ast, m_listener);
handleMdebug(show, ppl.getLineNumber());
break;
case APPParser.LITERAL_enddebug:
handleEnddebug();
break;
case APPParser.LITERAL_expand:
handleExpand(ppl, lines);
break;
default:
throw new PPException("Unexpected token " + APPParser._tokenNames[type] + " at \"" + ppl.getSource() + "\"", m_file,
ppl.getLineNumber());
}
if (type != APPParser.LITERAL_debug)
{
// reset the debug hide
m_debugHideNextLine = false;
}
}
private void handleExpand(PPLine ppl, Vector lines)
{
String expLine = getExpandLine(ppl);
String template = toTemplate(expLine);
int nextIndex = ppl.getLineNumber() + 1;
String str = lines.size() > nextIndex ? (String)lines.get(nextIndex) : "";
PPLine nextPPline = new PPLine(m_file, str, nextIndex);
String nextLine = uncommentLine(nextPPline);
boolean replace = nextLine.matches(template);
String expanded = Expander.expandMacros(expLine, m_defines);
if (!nextLine.equals(expanded))
{
m_modified = true;
}
if (replace)
{
lines.set(nextIndex, expanded);
}
else
{
lines.insertElementAt(expanded, nextIndex);
}
}
private void handleEnddebug()
{
m_currentMdebugBlockStart = -1;
m_insideHiddenMdebugBlock = false;
}
private void handleMdebug(boolean show, int lineNumber)
{
m_currentMdebugBlockStart = lineNumber;
m_insideHiddenMdebugBlock = !show;
}
private void handleCondition(boolean conditionTrue)
{
m_disabledByCondition = !conditionTrue;
}
/**
* A small abstraction away from the actual loggin method.
*/
public static interface ILogger
{
public void log(String message);
}
/**
* A small abstraction away from the line filter.
* line filters may modify a line before its being preprocessed. this can be useful to
* expand some macroes like ${VERSION} for example.
*/
public static interface ILineFilter
{
public String filter(String line);
}
public Defines getDefines()
{
return m_defines;
}
public void clearDefines()
{
m_defines.clear();
}
}
The table below shows all metrics for Preprocessor.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 112.00 | Number of blocks | |
| BLOCK_COMMENT | 0.00 | Number of block comment lines | |
| COMMENTS | 52.00 | Comment lines | |
| COMMENT_DENSITY | 0.14 | Comment density | |
| COMPARISONS | 61.00 | Number of comparison operators | |
| CYCLOMATIC | 120.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 9.00 | Comments in declarations | |
| DOC_COMMENT | 42.00 | Number of javadoc comment lines | |
| ELOC | 377.00 | Effective lines of code | |
| EXEC_COMMENTS | 9.00 | Comments in executable code | |
| EXITS | 92.00 | Procedure exits | |
| FUNCTIONS | 38.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 85.71 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 134.00 | Interface complexity | |
| JAVA0001 | 1.00 | 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 | 2.00 | 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 | 6.00 | 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 | 1.00 | 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 | 7.00 | 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 | 5.00 | 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 | 1.00 | 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 | 2.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 1.00 | 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 | 1.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 0.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 6.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 17.00 | 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 | 6.00 | 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 | 1.00 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0137 | 0.00 | JAVA0137 Non-abstract class missing constructor | |
| JAVA0138 | 1.00 | 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 | 2.00 | JAVA0141 Unnecessary modifier for method in interface | |
| JAVA0143 | 0.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 3.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 1724.00 | 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 | 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 | 2.00 | JAVA0173 Unused method parameter | |
| JAVA0174 | 0.00 | JAVA0174 Assigned local variable never used | |
| JAVA0175 | 1.00 | JAVA0175 Successive assignment to variable | |
| JAVA0176 | 0.00 | JAVA0176 Local variable name does not have required form | |
| JAVA0177 | 2.00 | 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 | 1.00 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0266 | 0.00 | JAVA0266 Use of System.out | |
| JAVA0267 | 1.00 | 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 | 747.00 | Number of lines in the source file | |
| LINE_COMMENT | 10.00 | Number of line comments | |
| LOC | 607.00 | Lines of code | |
| LOGICAL_LINES | 247.00 | Number of statements | |
| LOOPS | 6.00 | Number of loops | |
| NEST_DEPTH | 8.00 | Maximum nesting depth | |
| OPERANDS | 1101.00 | Number of operands | |
| OPERATORS | 2026.00 | Number of operators | |
| PARAMS | 47.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 3127.00 | Halstead program length | |
| PROGRAM_VOCAB | 386.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 87.00 | Number of return points from functions | |
| SIZE | 17483.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 334.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 52.00 | Number of unique operators | |
| WHITESPACE | 88.00 | Number of whitespace lines | |