WeakReferenceList.java
| Index Score | ||
|---|---|---|
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org.jfree.report.util |
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JFreeReport |
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 |  |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| COMMENTS | Comment lines | |
| DECL_COMMENTS | Comments in declarations | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| PROGRAM_VOLUME | Halstead program volume | |
| CYCLOMATIC | Cyclomatic complexity | |
| EXEC_COMMENTS | Comments in executable code | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| LINE_COMMENT | Number of line comments | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| COMPARISONS | Number of comparison operators | |
| ELOC | Effective lines of code | |
| LOGICAL_LINES | Number of statements | |
| OPERATORS | Number of operators | |
| PROGRAM_LENGTH | Halstead program length | |
| OPERANDS | Number of operands | |
| EXITS | Procedure exits | |
| WHITESPACE | Number of whitespace lines | |
| LOOPS | Number of loops | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| LOC | Lines of code | |
| UNIQUE_OPERANDS | Number of unique operands | |
| JAVA0130 | JAVA0130 Non-static method does not use instance fields | |
| BLOCKS | Number of blocks | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
| UNIQUE_OPERATORS | Number of unique operators | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
/**
* ========================================
* JFreeReport : a free Java report library
* ========================================
*
* Project Info: http://reporting.pentaho.org/
*
* (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors.
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------
* $Id: WeakReferenceList.java,v 1.11 2007/04/01 18:49:34 taqua Exp $
* ------------
* (C) Copyright 2000-2005, by Object Refinery Limited.
* (C) Copyright 2005-2007, by Pentaho Corporation.
*/
package org.jfree.report.util;
import java.io.IOException;
import java.io.Serializable;
import java.lang.ref.Reference;
import java.lang.ref.WeakReference;
/**
* The WeakReference list uses <code>java.lang.ref.WeakReference</code>s to store its
* contents. In contrast to the WeakHashtable, this list knows how to restore missing
* content, so that garbage collected elements can be restored when they are accessed.
* <p/>
* By default this list can contain 25 elements, where the first element is stored using a
* strong reference, which is not garbage collected.
* <p/>
* Restoring the elements is not implemented, concrete implementations will have to
* override the <code>restoreChild(int)</code> method. The <code>getMaxChildCount</code>
* method defines the maxmimum number of children in the list. When more than
* <code>maxChildCount</code> elements are contained in this list, add will always return
* false to indicate that adding the element failed.
* <p/>
* To customize the list, override createReference to create a different kind of
* reference.
* <p/>
* This list is able to add or clearFromParent elements, but inserting or removing of elements is
* not possible.
* <p/>
*
* @author Thomas Morgner
*/
public abstract class WeakReferenceList implements Serializable, Cloneable
{
/**
* The master element.
*/
private Object master;
/**
* Storage for the references.
*/
private Reference[] childs;
/**
* The current number of elements.
*/
private int size;
/**
* The maximum number of elements.
*/
private final int maxChilds;
/**
* Creates a new weak reference list. The storage of the list is limited to
* getMaxChildCount() elements.
*
* @param maxChildCount the maximum number of elements.
*/
protected WeakReferenceList (final int maxChildCount)
{
this.maxChilds = maxChildCount;
this.childs = new Reference[maxChildCount - 1];
}
/**
* Returns the maximum number of children in this list.
*
* @return the maximum number of elements in this list.
*/
protected final int getMaxChildCount ()
{
return maxChilds;
}
/**
* Returns the master element of this list. The master element is the element stored by
* a strong reference and cannot be garbage collected.
*
* @return the master element
*/
protected Object getMaster ()
{
return master;
}
/**
* Attempts to restore the child stored on the given index.
*
* @param index the index.
* @return null if the child could not be restored or the restored child.
*/
protected abstract Object restoreChild (int index);
/**
* Returns the child stored at the given index. If the child has been garbage collected,
* it gets restored using the restoreChild function.
*
* @param index the index.
* @return the object.
*/
public Object get (final int index)
{
if (isMaster(index))
{
return master;
}
else
{
final Reference ref = childs[getChildPos(index)];
if (ref == null)
{
throw new IllegalStateException("State: " + index);
}
Object ob = ref.get();
if (ob == null)
{
ob = restoreChild(index);
childs[getChildPos(index)] = createReference(ob);
}
return ob;
}
}
/**
* Replaces the child stored at the given index with the new child which can be null.
*
* @param report the object.
* @param index the index.
*/
public void set (final Object report, final int index)
{
if (isMaster(index))
{
master = report;
}
else
{
childs[getChildPos(index)] = createReference(report);
}
}
/**
* Creates a new reference for the given object.
*
* @param o the object.
* @return a WeakReference for the object o without any ReferenceQueue attached.
*/
private Reference createReference (final Object o)
{
return new WeakReference(o);
}
/**
* Adds the element to the list. If the maximum size of the list is exceeded, this
* function returns false to indicate that adding failed.
*
* @param rs the object.
* @return true, if the object was successfully added to the list, false otherwise
*/
public boolean add (final Object rs)
{
if (size == 0)
{
master = rs;
size = 1;
return true;
}
else
{
if (size < getMaxChildCount())
{
childs[size - 1] = createReference(rs);
size++;
return true;
}
else
{
// was not able to add this to this list, maximum number of entries reached.
return false;
}
}
}
/**
* Returns true, if the given index denotes a master index of this list.
*
* @param index the index.
* @return true if the index is a master index.
*/
protected boolean isMaster (final int index)
{
return index % getMaxChildCount() == 0;
}
/**
* Returns the internal storage position for the child.
*
* @param index the index.
* @return the internal storage index.
*/
protected int getChildPos (final int index)
{
return index % getMaxChildCount() - 1;
}
/**
* Returns the size of the list.
*
* @return the size.
*/
public int getSize ()
{
return size;
}
/**
* Serialisation support. The transient child elements are not saved.
*
* @param out the output stream.
* @throws IOException if there is an I/O error.
*/
private void writeObject (final java.io.ObjectOutputStream out)
throws IOException
{
final Reference[] orgChilds = childs;
try
{
childs = null;
out.defaultWriteObject();
}
finally
{
childs = orgChilds;
}
}
/**
* Serialisation support. The transient child elements were not saved.
*
* @param in the input stream.
* @throws IOException if there is an I/O error.
* @throws ClassNotFoundException if a serialized class is not defined on this system.
*/
private void readObject (final java.io.ObjectInputStream in)
throws IOException, ClassNotFoundException
{
in.defaultReadObject();
childs = new Reference[getMaxChildCount() - 1];
for (int i = 0; i < childs.length; i++)
{
childs[i] = createReference(null);
}
}
/**
* Creates and returns a copy of this object. The precise meaning of "copy" may depend
* on the class of the object. The general intent is that, for any object <tt>x</tt>,
* the expression: <blockquote>
* <pre>
* x.clone() != x</pre></blockquote>
* will be true, and that the expression: <blockquote>
* <pre>
* x.clone().getClass() == x.getClass()</pre></blockquote>
* will be <tt>true</tt>, but these are not absolute requirements. While it is typically
* the case that: <blockquote>
* <pre>
* x.clone().equals(x)</pre></blockquote>
* will be <tt>true</tt>, this is not an absolute requirement.
* <p/>
* By convention, the returned object should be obtained by calling
* <tt>super.clone</tt>. If a class and all of its superclasses (except
* <tt>Object</tt>) obey this convention, it will be the case that
* <tt>x.clone().getClass() == x.getClass()</tt>.
* <p/>
* By convention, the object returned by this method should be independent of this
* object (which is being cloned). To achieve this independence, it may be necessary to
* modify one or more fields of the object returned by <tt>super.clone</tt> before
* returning it. Typically, this means copying any mutable objects that comprise the
* internal "deep structure" of the object being cloned and replacing the references to
* these objects with references to the copies. If a class contains only primitive
* fields or references to immutable objects, then it is usually the case that no fields
* in the object returned by <tt>super.clone</tt> need to be modified.
* <p/>
* The method <tt>clone</tt> for class <tt>Object</tt> performs a specific cloning
* operation. First, if the class of this object does not implement the interface
* <tt>Cloneable</tt>, then a <tt>CloneNotSupportedException</tt> is thrown. Note that
* all arrays are considered to implement the interface <tt>Cloneable</tt>. Otherwise,
* this method creates a new instance of the class of this object and initializes all
* its fields with exactly the contents of the corresponding fields of this object, as
* if by assignment; the contents of the fields are not themselves cloned. Thus, this
* method performs a "shallow copy" of this object, not a "deep copy" operation.
* <p/>
* The class <tt>Object</tt> does not itself implement the interface <tt>Cloneable</tt>,
* so calling the <tt>clone</tt> method on an object whose class is <tt>Object</tt> will
* result in throwing an exception at run time.
*
* @return a clone of this instance.
*
* @throws CloneNotSupportedException if the object's class does not support the
* <code>Cloneable</code> interface. Subclasses that
* override the <code>clone</code> method can also
* throw this exception to indicate that an instance
* cannot be cloned.
* @see Cloneable
*/
protected Object clone ()
throws CloneNotSupportedException
{
final WeakReferenceList list = (WeakReferenceList) super.clone();
list.childs = (Reference[]) childs.clone();
return list;
}
}
The table below shows all metrics for WeakReferenceList.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 26.00 | Number of blocks | |
| BLOCK_COMMENT | 0.00 | Number of block comment lines | |
| COMMENTS | 196.00 | Comment lines | |
| COMMENT_DENSITY | 2.65 | Comment density | |
| COMPARISONS | 11.00 | Number of comparison operators | |
| CYCLOMATIC | 20.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 20.00 | Comments in declarations | |
| DOC_COMMENT | 195.00 | Number of javadoc comment lines | |
| ELOC | 74.00 | Effective lines of code | |
| EXEC_COMMENTS | 1.00 | Comments in executable code | |
| EXITS | 9.00 | Procedure exits | |
| FUNCTIONS | 14.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 54.60 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 31.00 | 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 | 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 | 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 | 1.00 | 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 | 0.00 | 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 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 0.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 0.00 | JAVA0118 Missing javadoc: type 'type' | |
| JAVA0119 | 0.00 | JAVA0119 Control variable changed within body of for loop | |
| JAVA0123 | 0.00 | JAVA0123 Use all three components of for loop | |
| JAVA0125 | 0.00 | JAVA0125 Continue statement with label | |
| JAVA0126 | 0.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 0.00 | JAVA0128 Public constructor in non-public class | |
| JAVA0130 | 1.00 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0131 | 0.00 | JAVA0131 Compatible method does not override base | |
| JAVA0132 | 0.00 | JAVA0132 Method overload with compatible signature | |
| JAVA0133 | 0.00 | JAVA0133 Non-synchronized method overrides synchronized method | |
| JAVA0135 | 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 | 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 | 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 | 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 | 344.00 | Number of lines in the source file | |
| LINE_COMMENT | 1.00 | Number of line comments | |
| LOC | 128.00 | Lines of code | |
| LOGICAL_LINES | 46.00 | Number of statements | |
| LOOPS | 1.00 | Number of loops | |
| NEST_DEPTH | 3.00 | Maximum nesting depth | |
| OPERANDS | 169.00 | Number of operands | |
| OPERATORS | 374.00 | Number of operators | |
| PARAMS | 11.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 543.00 | Halstead program length | |
| PROGRAM_VOCAB | 107.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 20.00 | Number of return points from functions | |
| SIZE | 10949.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 65.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 42.00 | Number of unique operators | |
| WHITESPACE | 20.00 | Number of whitespace lines | |