References.java
| Index Score | ||
|---|---|---|
 |
 |
de.hunsicker.jalopy.language |
 |
 |
Jalopy |
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 | |
|---|---|---|
| EXEC_COMMENTS | Comments in executable code |  |
| JAVA0032 | JAVA0032 Switch statement missing default | |
| JAVA0049 | JAVA0049 Nested block at depth N (maximum: M) | |
| LINE_COMMENT | Number of line comments | |
| DECL_COMMENTS | Comments in declarations | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| JAVA0031 | JAVA0031 Case statement not properly closed | |
| SIZE | Size of the file in bytes | |
| JAVA0039 | JAVA0039 Break statement with label | |
| JAVA0128 | JAVA0128 Public constructor in non-public class | |
| JAVA0266 | JAVA0266 Use of System.out | |
| NEST_DEPTH | Maximum nesting depth | |
| LINES | Number of lines in the source file | |
| JAVA0254 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0125 | JAVA0125 Continue statement with label | |
| LOC | Lines of code | |
| COMPARISONS | Number of comparison operators | |
| EXITS | Procedure exits | |
| PROGRAM_VOLUME | Halstead program volume | |
| CYCLOMATIC | Cyclomatic complexity | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0020 | JAVA0020 Field name does not have required form | |
| JAVA0173 | JAVA0173 Unused method parameter | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| ELOC | Effective lines of code | |
| RETURNS | Number of return points from functions | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
| COMMENTS | Comment lines | |
/*
* Copyright (c) 2001-2002, Marco Hunsicker. All rights reserved.
*
* This software is distributable under the BSD license. See the terms of the
* BSD license in the documentation provided with this software.
*/
package de.hunsicker.jalopy.language;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import de.hunsicker.jalopy.language.antlr.JavaNode;
import de.hunsicker.jalopy.language.antlr.JavaTokenTypes;
/**
* DOCUMENT ME!
*
* @author $author$
* @version $Revision: 1.5 $
*
* @since 1.0b8
*/
final class References
{
//~ Static variables/initializers ----------------------------------------------------
/** Indicates a new class scope. */
public static final int SCOPE_CLASS = 2;
/** Indicates all scopes besides {@link #SCOPE_CLASS}. */
public static final int SCOPE_DEFAULT = 1;
//~ Instance variables ---------------------------------------------------------------
/** Provides a stack of currently active scopes. */
private final LinkedList _scopesStack = new LinkedList(); // List of <References.Scope>
/** Holds all scopes found during the parsing. */
private final List _scopes = new ArrayList(); // List of <References.Scope>
/**
* Maps all variables with their references. <code>null</code> values means there
* exist no references for a variable.
*/
final Map _variables = new HashMap(); // Map of <JavaNode>:<List>
/** The default scope represents the top of a compilation unit. */
private final Scope _defaultScope = new Scope();
/** The current scope. */
private Scope _curScope = _defaultScope;
private final Set _identifiers = new HashSet(150); // Set of <String>
private final Set _types = new HashSet(30); // Set of <String>
//~ Constructors ---------------------------------------------------------------------
/**
* Creates a new References object.
*/
public References()
{
_scopesStack.addFirst(_defaultScope);
}
//~ Methods --------------------------------------------------------------------------
/**
* Returns a map with all declared variables along with their references.
*
* @return all declared variables (Map of <JavaNode:List>).
*/
public Map getVariables()
{
return _variables;
}
/**
* Adds a reference to the current scope.
*
* @param name name of the reference.
* @param node the node of the reference.
*/
public void addReference(
String name,
JavaNode node)
{
_curScope.addReference(node, name);
_identifiers.add(name);
}
/**
* DOCUMENT ME!
*
* @param name DOCUMENT ME!
* @param node DOCUMENT ME!
*/
public void defineType(
String name,
JavaNode node)
{
_types.add(name);
}
/**
* Defines a variable that may be referenced in the current or a subordinated scope.
*
* @param name the name of the variable.
* @param node the VARIABLE_DEF node.
*/
public void defineVariable(
String name,
JavaNode node)
{
_curScope.addVariable(name, node);
_variables.put(node, null);
}
/**
* Enters a new scope.
*/
public void enterScope()
{
enterScope(SCOPE_DEFAULT);
}
/**
* Enters a new scope of the given type.
*
* @param type the scope type. Either <ul><li>{@link #SCOPE_DEFAULT} or</li>
* <li>{@link #SCOPE_CLASS}</li> </ul>.
*/
public void enterScope(int type)
{
Scope scope = new Scope(_curScope, type);
_curScope = scope;
_scopesStack.addFirst(scope);
_scopes.add(scope);
}
/**
* Leaves the current scope.
*/
public void leaveScope()
{
//Scope s = (Scope) _scopesStack.removeFirst();
_curScope = (Scope) _scopesStack.getFirst();
if (_curScope == _defaultScope)
{
//resolveReferences();
}
}
/**
* Resets the instance so it can easily be reused.
*/
public void reset()
{
_variables.clear();
_types.clear();
_identifiers.clear();
_scopesStack.clear();
_scopesStack.addFirst(_defaultScope);
_scopes.clear();
// release all subordinate scopes to let gc happen!
if (_defaultScope.children != null)
{
_defaultScope.children.clear();
}
_curScope = _defaultScope;
}
/**
* Resolves all local references.
*/
public void resolveReferences()
{
_curScope = _defaultScope;
System.out.println("Resolving...");
_curScope.resolveReferences();
for (Iterator i = _variables.entrySet().iterator(); i.hasNext();)
{
Map.Entry entry = (Map.Entry) i.next();
List references = (List) entry.getValue();
JavaNode node = (JavaNode) entry.getKey();
int modifierMask = JavaNodeModifier.valueOf(node);
// constant, ignore
if (
Modifier.isFinal(modifierMask)
&& Modifier.isStatic(modifierMask))
{
continue;
}
if (references == null)
{
switch (node.getType())
{
case JavaTokenTypes.VARIABLE_DEF :
JavaNode assign =
(JavaNode) JavaNodeHelper.getFirstChild(
node, JavaTokenTypes.ASSIGN);
if (assign != null)
{
System.out.println(
"XXX:" + node.getStartLine() + ":" + node.getStartColumn()
+ ": Variable "
+ JavaNodeHelper.getFirstChild(
node, JavaTokenTypes.IDENT).getText()
+ " is declared but never assigned");
}
else
{
System.out.println(
"XXX:" + node.getStartLine() + ":" + node.getStartColumn()
+ ": Variable "
+ JavaNodeHelper.getFirstChild(
node, JavaTokenTypes.IDENT).getText()
+ " is assigned but never accessed");
}
break;
}
}
else
{
switch (node.getType())
{
case JavaTokenTypes.VARIABLE_DEF :
{
int usages = references.size();
if (usages == 1)
{
JavaNode usage = (JavaNode) references.get(0);
switch (usage.getParent().getType())
{
case JavaTokenTypes.ASSIGN :
switch (usage.getPreviousSibling().getType())
{
case JavaTokenTypes.ASSIGN :
// node is lhs of assignment
/**
* @todo make the level configurable
*/
if (Modifier.isPrivate(modifierMask))
{
System.out.println(
"XXX:" + node.getStartLine() + ":"
+ node.getStartColumn() + ": Variable "
+ JavaNodeHelper.getFirstChild(
node, JavaTokenTypes.IDENT)
.getText()
+ " is assigned but never accessed (assigned at "
+ usage.getStartLine() + ":"
+ usage.getStartColumn() + ")");
}
break;
}
break;
default :
if (!Modifier.isFinal(modifierMask))
{
/**
* @todo :" + node.startLine + ":" +
* node.startColumn + ": Variable " +
* JavaNodeHelper.getFirstChild(node,
* JavaTokenTypes.IDENT).getText() + " is
* only assigned once, consider making it
* final");
*/
}
break;
}
}
else
{
if (!Modifier.isFinal(modifierMask))
{
JavaNode assign =
(JavaNode) JavaNodeHelper.getFirstChild(
node, JavaTokenTypes.ASSIGN);
int assignments = 0;
if (assign != null)
{
JavaNode expr = (JavaNode) assign.getFirstChild();
switch (expr.getType())
{
case JavaTokenTypes.EXPR :
if (
!"null".equals(
expr.getFirstChild().getText()))
{
assignments = 1;
}
break;
}
}
LOOP:
for (int j = 0, size = references.size(); j < size;
j++)
{
JavaNode n = (JavaNode) references.get(j);
switch (n.getParent().getType())
{
case JavaTokenTypes.ASSIGN :
assignments++;
if (assignments > 1)
{
break LOOP;
}
break;
}
}
if (assignments == 1)
{
/**
* @todo :" + node.startLine + ":" + node.startColumn
* + ": Variable " +
* JavaNodeHelper.getFirstChild(node,
* JavaTokenTypes.IDENT).getText() + " is only
* assigned once, consider making it final");
*/
}
}
}
}
}
/* System.out.println(entry.getKey());
List refs = (List)entry.getValue();
for (int j = 0, n = refs.size(); j < n; j++)
{
System.out.println(" " + refs.get(j));
}
System.out.println("------------------------------------");
*/
}
}
}
//~ Inner Classes --------------------------------------------------------------------
private class Scope
{
/** The subordinated scopes. */
List children; // List of <Scope>
/** The references that are to be resolved. */
Map references; // Map of <JavaNode>:<String>
/** The variables of this scope. */
Map variables; // Map of <String>:<JavaNode>
/** The superordinated scope. */
Scope parent;
int type;
public Scope(
Scope parent,
int type)
{
this.type = type;
if (parent != null)
{
this.parent = parent;
if (parent.children == null)
{
parent.children = new ArrayList();
}
parent.children.add(this);
}
}
Scope()
{
}
public void addReference(
JavaNode node,
String name)
{
if (this.references == null)
{
this.references = new HashMap();
}
this.references.put(node, name);
}
public void addVariable(
String name,
JavaNode node)
{
if (this.variables == null)
{
this.variables = new HashMap();
}
this.variables.put(name, node);
}
public void resolveReferences()
{
resolveVariableReferences(this);
// resolve all references in the subordinated scopes
if (this.children != null)
{
for (int i = 0, size = this.children.size(); i < size; i++)
{
Scope scope = (Scope) this.children.get(i);
scope.resolveReferences();
}
}
}
private void resolveVariableReferences(Scope scope)
{
if ((this.references != null) && !this.references.isEmpty())
{
if ((scope.variables != null) && !scope.variables.isEmpty())
{
LOOKUP:
for (Iterator i = this.references.entrySet().iterator(); i.hasNext();)
{
Map.Entry reference = (Map.Entry) i.next();
String refName = (String) reference.getValue();
JavaNode refNode = (JavaNode) reference.getKey();
int dot = refName.indexOf('.');
if (dot == -1) // no qualification
{
switch (refNode.getType())
{
// no qualification and METHOD_CALL means not
// a variable reference so we can avoid further
// processing here
case JavaTokenTypes.METHOD_CALL :
continue LOOKUP;
}
}
else
{
// does the name contains a referrer to the
// instance or outer class?
int referrer = refName.indexOf(".this.");
// use only the first part of the qualified name
// for the lookup
if (referrer == -1) // no referrer
{
switch (scope.type)
{
case SCOPE_CLASS :
if (refName.startsWith("this."))
{
int nextDot = refName.indexOf('.', 5);
switch (nextDot)
{
case -1 : // no further dots
// strip the keyword
refName = refName.substring(5);
break;
default :
// strip everything before
// first and after second dot
refName =
refName.substring(5, nextDot);
break;
}
break;
}
// fall through
default : //strip everything after the first dot
refName = refName.substring(0, dot);
break;
}
/*if (!refName.startsWith("this."))
{
refName = refName.substring(0, dot);
}
else if (scope.type == SCOPE_CLASS)
{
// if we're in class scope, we can savely
// strip the keyword to see whether we will
// find a match
refName = refName.substring(5);
}*/
}
else if (scope.type == SCOPE_CLASS)
{
// but for referrers we have to strip the
// outer class reference part
refName = refName.substring(referrer + 6);
}
}
for (
Iterator j = scope.variables.entrySet().iterator();
j.hasNext();)
{
Map.Entry variable = (Map.Entry) j.next();
String varName = (String) variable.getKey();
//Object value = variable.getValue();
if (refName.equals(varName))
{
JavaNode varNode = (JavaNode) variable.getValue();
List theReferences = (List) _variables.get(varNode);
if (theReferences == null)
{
theReferences = new ArrayList();
_variables.put(varNode, theReferences);
}
theReferences.add(refNode);
// the reference has been resolved, so remove
// it from the map
i.remove();
}
}
}
}
// search along the parent scopes as long as there are references
if ((scope.parent != null) && !this.references.isEmpty())
{
resolveVariableReferences(scope.parent);
}
}
}
}
}
The table below shows all metrics for References.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 53.00 | Number of blocks | |
| BLOCK_COMMENT | 28.00 | Number of block comment lines | |
| COMMENTS | 140.00 | Comment lines | |
| COMMENT_DENSITY | 0.61 | Comment density | |
| COMPARISONS | 47.00 | Number of comparison operators | |
| CYCLOMATIC | 64.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 28.00 | Comments in declarations | |
| DOC_COMMENT | 84.00 | Number of javadoc comment lines | |
| ELOC | 228.00 | Effective lines of code | |
| EXEC_COMMENTS | 21.00 | Comments in executable code | |
| EXITS | 45.00 | Procedure exits | |
| FUNCTIONS | 16.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 64.25 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 30.00 | 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 | 1.00 | 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 | 2.00 | JAVA0031 Case statement not properly closed | |
| JAVA0032 | 6.00 | JAVA0032 Switch statement missing default | |
| JAVA0033 | 0.00 | JAVA0033 default: not last case in switch statement | |
| JAVA0034 | 0.00 | 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 | 1.00 | JAVA0038 Non-case label in switch statement | |
| JAVA0039 | 1.00 | 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 | 6.00 | 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 | 1.00 | 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 | 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 | 4.00 | 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 | 1.00 | JAVA0125 Continue statement with label | |
| JAVA0126 | 0.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 2.00 | 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 | 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 | 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 | 1.00 | 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 | 0.00 | 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 | 2.00 | 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 | 4.00 | 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 | 596.00 | Number of lines in the source file | |
| LINE_COMMENT | 28.00 | Number of line comments | |
| LOC | 356.00 | Lines of code | |
| LOGICAL_LINES | 119.00 | Number of statements | |
| LOOPS | 5.00 | Number of loops | |
| NEST_DEPTH | 8.00 | Maximum nesting depth | |
| OPERANDS | 570.00 | Number of operands | |
| OPERATORS | 1153.00 | Number of operators | |
| PARAMS | 14.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 1723.00 | Halstead program length | |
| PROGRAM_VOCAB | 212.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 16.00 | Number of return points from functions | |
| SIZE | 20672.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 173.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 39.00 | Number of unique operators | |
| WHITESPACE | 100.00 | Number of whitespace lines | |