ByteBuffer.java
| Index Score | ||
|---|---|---|
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phex.io.buffer |
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Phex |
View: Reasons, Metrics, Source Code
These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.
| Metric | Description | |
|---|---|---|
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag |  |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| DECL_COMMENTS | Comments in declarations | |
| BLOCKS | Number of blocks | |
| FUNCTIONS | Number of function declarations | |
| LOC | Lines of code | |
| RETURNS | Number of return points from functions | |
| CYCLOMATIC | Cyclomatic complexity | |
| LINES | Number of lines in the source file | |
| LOOPS | Number of loops | |
| EXITS | Procedure exits | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| LOGICAL_LINES | Number of statements | |
| SIZE | Size of the file in bytes | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| DOC_COMMENT | Number of javadoc comment lines | |
| COMPARISONS | Number of comparison operators | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0177 | JAVA0177 Variable declaration missing initializer | |
| JAVA0123 | JAVA0123 Use all three components of for loop | |
| OPERATORS | Number of operators | |
| ELOC | Effective lines of code | |
| COMMENTS | Comment lines | |
| PROGRAM_LENGTH | Halstead program length | |
| UNIQUE_OPERATORS | Number of unique operators | |
| JAVA0031 | JAVA0031 Case statement not properly closed | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| PARAMS | Number of formal parameter declarations | |
| UNIQUE_OPERANDS | Number of unique operands | |
| OPERANDS | Number of operands | |
| JAVA0115 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0076 | JAVA0076 Use of magic number | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| EXEC_COMMENTS | Comments in executable code | |
| NEST_DEPTH | Maximum nesting depth | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
/*
* PHEX - The pure-java Gnutella-servent.
* Copyright (C) 2001 - 2007 Phex Development Group
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* --- SVN Information ---
* $Id: ByteBuffer.java 4115 2008-01-19 12:45:58Z gregork $
*/
package phex.io.buffer;
import java.nio.BufferOverflowException;
import java.nio.BufferUnderflowException;
import java.nio.CharBuffer;
import java.nio.ReadOnlyBufferException;
import java.nio.ShortBuffer;
import java.nio.charset.CharacterCodingException;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.CoderResult;
import phex.utils.HexConverter;
/**
* We use our own ByteBuffer implementations to be able to
* add convenience functionalities.
*
* ByteBuffer allocation is done using heap byte buffers
* since long lasting direct byte buffer with pooling as we
* used before (see DirectByteBuffer and DirectByteBufferProvider)
* turn out to not be a very efficient alternative (in Java 6).
*/
public class ByteBuffer implements Comparable<ByteBuffer>
{
private java.nio.ByteBuffer buf;
protected ByteBuffer( java.nio.ByteBuffer buf )
{
this.buf = buf;
}
/**
* Relative <i>put</i> method for writing a short
* value in little endian byte order.
*
* <p> Writes two bytes containing the given int value, in little
* endian byte order, into this buffer at the current position, and
* increments the position by four. </p>
*
* @param value
* The int value to be written
*
* @return This buffer
*
* @throws BufferOverflowException
* If there are fewer than four bytes
* remaining in this buffer
*
* @throws ReadOnlyBufferException
* If this buffer is read-only
*/
public ByteBuffer putIntLE( int value )
{
put( (byte)(value >> 0) );
put( (byte)(value >> 8) );
put( (byte)(value >> 16) );
put( (byte)(value >> 24) );
return this;
}
/**
* Relative <i>put</i> method for writing a short
* value in little endian byte order.
*
* <p> Writes two bytes containing the given short value, in little
* endian byte order, into this buffer at the current position, and
* increments the position by two. </p>
*
* @param value
* The short value to be written
*
* @return This buffer
*
* @throws BufferOverflowException
* If there are fewer than two bytes
* remaining in this buffer
*
* @throws ReadOnlyBufferException
* If this buffer is read-only
*/
public ByteBuffer putShortLE( short value )
{
put( (byte)(value >> 0) );
put( (byte)(value >> 8) );
return this;
}
/**
* Reads characters from this ByteBuffer, appending it to the given
* StringBuffer, until a '\n' terminated line is read ('\r' is dropped).
* Returns true if a line was read, false if more data needs to be in the
* the buffer until a full line can be read.
*/
public boolean readLine( StringBuilder strBuf )
{
int c = -1; //the character just read
while( hasRemaining() )
{
c = get();
switch(c)
{
// line full
case '\n':
return true;
// drop \r character.
case '\r':
continue;
default:
strBuf.append((char)c);
}
}
return false;
}
/**
* Reads a <code>NUL</code>-terminated string from this buffer using the
* specified <code>decoder</code> and returns it. This method reads
* until the limit of this buffer if no <tt>NUL</tt> is found.
*/
public String getString( CharsetDecoder decoder ) throws CharacterCodingException
{
if( !hasRemaining() )
{
return "";
}
boolean utf16 = decoder.charset().name().startsWith( "UTF-16" );
int oldPos = position();
int oldLimit = limit();
int end = -1;
int newPos;
if( !utf16 )
{
end = indexOf( ( byte ) 0x00 );
if( end < 0 )
{
newPos = end = oldLimit;
}
else
{
newPos = end + 1;
}
}
else
{
int i = oldPos;
for( ;; )
{
boolean wasZero = get( i ) == 0;
i ++;
if( i >= oldLimit )
{
break;
}
if( get( i ) != 0 )
{
i ++;
if( i >= oldLimit )
{
break;
}
else
{
continue;
}
}
if( wasZero )
{
end = i - 1;
break;
}
}
if( end < 0 )
{
newPos = end = oldPos + ( ( oldLimit - oldPos ) & 0xFFFFFFFE );
}
else
{
if( end + 2 <= oldLimit )
{
newPos = end + 2;
}
else
{
newPos = end;
}
}
}
if( oldPos == end )
{
position( newPos );
return "";
}
limit( end );
decoder.reset();
int expectedLength = (int)( remaining() * decoder.averageCharsPerByte() ) + 1;
CharBuffer out = CharBuffer.allocate( expectedLength );
for( ; ; )
{
CoderResult cr;
if( hasRemaining() )
{
cr = decoder.decode( internalBuffer(), out, true );
}
else
{
cr = decoder.flush( out );
}
if( cr.isUnderflow() )
{
break;
}
if( cr.isOverflow() )
{
CharBuffer o = CharBuffer.allocate( out.capacity() + expectedLength );
out.flip();
o.put( out );
out = o;
continue;
}
if( cr.isError() )
{
// Revert the buffer back to the previous state.
limit( oldLimit );
position( oldPos );
cr.throwException();
}
}
limit( oldLimit );
position( newPos );
return out.flip().toString();
}
/**
* Reads a <code>NUL</code>-terminated string from this buffer using the
* specified <code>decoder</code> and returns it.
*
* @param fieldSize the maximum number of bytes to read
*/
public String getString( int fieldSize, CharsetDecoder decoder ) throws CharacterCodingException
{
if( fieldSize < 0 )
{
throw new IllegalArgumentException(
"fieldSize cannot be negative: " + fieldSize );
}
if( fieldSize == 0 )
{
return "";
}
if( !hasRemaining() )
{
return "";
}
boolean utf16 = decoder.charset().name().startsWith( "UTF-16" );
if( utf16 && ( ( fieldSize & 1 ) != 0 ) )
{
throw new IllegalArgumentException( "fieldSize is not even." );
}
int oldPos = position();
int oldLimit = limit();
int end = oldPos + fieldSize;
if( oldLimit < end )
{
throw new BufferUnderflowException();
}
int i;
if( !utf16 )
{
for( i = oldPos; i < end; i ++ )
{
if( get( i ) == 0 )
{
break;
}
}
if( i == end )
{
limit( end );
}
else
{
limit( i );
}
}
else
{
for( i = oldPos; i < end; i += 2 )
{
if( ( get( i ) == 0 ) && ( get( i + 1 ) == 0 ) )
{
break;
}
}
if( i == end )
{
limit( end );
}
else
{
limit( i );
}
}
if( !hasRemaining() )
{
limit( oldLimit );
position( end );
return "";
}
decoder.reset();
int expectedLength = (int)( remaining() * decoder.averageCharsPerByte() ) + 1;
CharBuffer out = CharBuffer.allocate( expectedLength );
for( ; ; )
{
CoderResult cr;
if( hasRemaining() )
{
cr = decoder.decode( internalBuffer(), out, true );
}
else
{
cr = decoder.flush( out );
}
if( cr.isUnderflow() )
{
break;
}
if( cr.isOverflow() )
{
CharBuffer o = CharBuffer.allocate( out.capacity() + expectedLength );
out.flip();
o.put( out );
out = o;
continue;
}
if( cr.isError() )
{
// Revert the buffer back to the previous state.
limit( oldLimit );
position( oldPos );
cr.throwException();
}
}
limit( oldLimit );
position( end );
return out.flip().toString();
}
/**
* Returns the first occurence position of the specified byte from the current position to
* the current limit.
*
* @return <tt>-1</tt> if the specified byte is not found
*/
public int indexOf( byte b )
{
if( hasArray() )
{
int arrayOffset = arrayOffset();
int beginPos = arrayOffset + position();
int limit = arrayOffset + limit();
byte[] array = array();
for( int i = beginPos; i < limit; i ++ )
{
if( array[ i ] == b )
{
return i - arrayOffset;
}
}
}
else
{
int beginPos = position();
int limit = limit();
for( int i = beginPos; i < limit; i ++ )
{
if( get( i ) == b )
{
return i;
}
}
}
return -1;
}
/**
* Forwards the position of this buffer the specified <code>size</code>
* in bytes.
*/
public ByteBuffer skip( int size )
{
return position( position() + size );
}
public java.nio.ByteBuffer internalBuffer()
{
return buf;
}
/**
* Returns a hexdump for this buffer.
*/
public String getHexDump()
{
return this.getHexDump( Integer.MAX_VALUE );
}
/**
* Return a hexdump for this buffer with limited length.
*
* @param lengthLimit The maximum number of bytes to dump from
* the current buffer position.
*/
public String getHexDump( int lengthLimit )
{
return HexConverter.toHexString(this, lengthLimit);
}
@Override
public String toString()
{
StringBuffer sBuf = new StringBuffer();
if( isDirect() )
{
sBuf.append( "DirectBuffer" );
}
else
{
sBuf.append( "HeapBuffer" );
}
sBuf.append( "[pos=" );
sBuf.append( position() );
sBuf.append( " lim=" );
sBuf.append( limit() );
sBuf.append( " cap=" );
sBuf.append( capacity() );
sBuf.append( ": " );
sBuf.append( getHexDump( 16 ) );
sBuf.append( ']' );
return sBuf.toString();
}
@Override
public int hashCode()
{
int h = 1;
int p = position();
for( int i = limit() - 1; i >= p; i -- )
{
h = 31 * h + get( i );
}
return h;
}
@Override
public boolean equals( Object o )
{
if( !( o instanceof ByteBuffer ) )
{
return false;
}
ByteBuffer that = (ByteBuffer)o;
if( this.remaining() != that.remaining() )
{
return false;
}
int p = this.position();
for( int i = this.limit() - 1, j = that.limit() - 1; i >= p; i --, j -- )
{
byte v1 = this.get( i );
byte v2 = that.get( j );
if( v1 != v2 )
{
return false;
}
}
return true;
}
public int compareTo(ByteBuffer that)
{
int n = this.position() + Math.min( this.remaining(), that.remaining() );
for( int i = this.position(), j = that.position(); i < n; i ++, j ++ )
{
byte v1 = this.get( i );
byte v2 = that.get( j );
if( v1 == v2 )
{
continue;
}
if( v1 < v2 )
{
return -1;
}
return +1;
}
return this.remaining() - that.remaining();
}
///////////////////////////////////////////////
// java.nio.ByteBuffer delegation functions //
public byte[] array()
{
return buf.array();
}
public int arrayOffset()
{
return buf.arrayOffset();
}
/**
* @see java.nio.ByteBuffer#asReadOnlyBuffer()
*/
public ByteBuffer asReadOnlyBuffer()
{
return new ByteBuffer( buf.asReadOnlyBuffer() );
}
/**
* @see java.nio.ByteBuffer#asShortBuffer()
*/
public ShortBuffer asShortBuffer()
{
return buf.asShortBuffer();
}
/**
* @see java.nio.ByteBuffer#capacity()
*/
public int capacity()
{
return buf.capacity();
}
/**
* @see java.nio.ByteBuffer#clear()
*/
public ByteBuffer clear()
{
buf.clear();
return this;
}
/**
* @see java.nio.ByteBuffer#compact()
*/
public ByteBuffer compact()
{
buf.compact();
return this;
}
/**
* @see java.nio.ByteBuffer#duplicate()
*/
public ByteBuffer duplicate()
{
return new ByteBuffer( this.buf.duplicate() );
}
/**
* @see java.nio.ByteBuffer#flip()
*/
public ByteBuffer flip()
{
buf.flip();
return this;
}
/**
* @see java.nio.ByteBuffer#get()
*/
public byte get()
{
return buf.get();
}
/**
* @see java.nio.ByteBuffer#get(byte[], int, int)
*/
public ByteBuffer get(byte[] dst, int offset, int length)
{
buf.get( dst, offset, length );
return this;
}
/**
* @see java.nio.ByteBuffer#get(byte[])
*/
public ByteBuffer get(byte[] dst)
{
buf.get( dst );
return this;
}
/**
* @see java.nio.ByteBuffer#get(int)
*/
public byte get(int index)
{
return buf.get( index );
}
public boolean hasArray()
{
return buf.hasArray();
}
public boolean hasRemaining()
{
return buf.hasRemaining();
}
public boolean isDirect()
{
return buf.isDirect();
}
public boolean isReadOnly()
{
return buf.isReadOnly();
}
/**
* @see java.nio.Buffer#limit()
*/
public int limit()
{
return buf.limit();
}
/**
* @see java.nio.Buffer#limit(int)
*/
public ByteBuffer limit( int newLimit)
{
buf.limit( newLimit );
return this;
}
/**
* @see java.nio.Buffer#mark()
*/
public ByteBuffer mark()
{
buf.mark();
return this;
}
/**
* @see java.nio.ByteBuffer#position()
*/
public int position()
{
return buf.position();
}
/**
* @see java.nio.ByteBuffer#position(int)
*/
public ByteBuffer position( int newPosition )
{
buf.position(newPosition);
return this;
}
/**
* @see java.nio.ByteBuffer#put(byte)
*/
public ByteBuffer put(byte b)
{
buf.put( b );
return this;
}
/**
* @see java.nio.ByteBuffer#put(byte[])
*/
public ByteBuffer put( byte[] src )
{
buf.put( src );
return this;
}
/**
* @see java.nio.ByteBuffer#put(byte[], int, int)
*/
public ByteBuffer put(byte[] src, int offset, int length)
{
buf.put( src, offset, length );
return this;
}
public ByteBuffer put(ByteBuffer src)
{
buf.put( src.buf );
return this;
}
public ByteBuffer put(int index, byte b)
{
buf.put( index, b );
return this;
}
/**
* @see java.nio.ByteBuffer#remaining()
*/
public int remaining()
{
return buf.remaining();
}
/**
* @see java.nio.ByteBuffer#reset()
*/
public ByteBuffer reset()
{
buf.reset();
return this;
}
/**
* @see java.nio.ByteBuffer#rewind()
*/
public ByteBuffer rewind()
{
buf.rewind();
return this;
}
/**
* @see java.nio.ByteBuffer#slice()
*/
public ByteBuffer slice()
{
return new ByteBuffer( this.buf.slice() );
}
///////////////////////////////////////////////
// ByteBuffer allocation functions //
/**
* Returns a heap buffer which is capable to hold the specified size.
* @param capacity the capacity of the buffer
*/
public static ByteBuffer allocate( int capacity )
{
java.nio.ByteBuffer nioBuffer = java.nio.ByteBuffer.allocate( capacity );
return new ByteBuffer( nioBuffer );
}
/**
* Wraps the specified byte array into a ByteBuffer.
*/
public static ByteBuffer wrap( byte[] byteArray )
{
return wrap( java.nio.ByteBuffer.wrap( byteArray ) );
}
/**
* Wraps the specified byte array into a ByteBuffer.
*/
public static ByteBuffer wrap( byte[] byteArray, int offset, int length )
{
return wrap( java.nio.ByteBuffer.wrap( byteArray, offset, length ) );
}
/**
* Wraps the specified NIO {@link java.nio.ByteBuffer} into a ByteBuffer.
*/
public static ByteBuffer wrap( java.nio.ByteBuffer nioBuffer )
{
return new ByteBuffer( nioBuffer );
}
}
The table below shows all metrics for ByteBuffer.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 111.00 | Number of blocks | |
| BLOCK_COMMENT | 21.00 | Number of block comment lines | |
| COMMENTS | 196.00 | Comment lines | |
| COMMENT_DENSITY | 0.61 | Comment density | |
| COMPARISONS | 61.00 | Number of comparison operators | |
| CYCLOMATIC | 104.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 40.00 | Comments in declarations | |
| DOC_COMMENT | 167.00 | Number of javadoc comment lines | |
| ELOC | 322.00 | Effective lines of code | |
| EXEC_COMMENTS | 4.00 | Comments in executable code | |
| EXITS | 73.00 | Procedure exits | |
| FUNCTIONS | 50.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 92.02 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 101.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 1.00 | JAVA0002 Package name does not begin with a top level domain name or country code | |
| JAVA0003 | 0.00 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0004 | 0.00 | JAVA0004 Unnecessary import from java.lang | |
| JAVA0005 | 0.00 | JAVA0005 Imports not in specified order | |
| JAVA0006 | 0.00 | JAVA0006 Empty finally block | |
| JAVA0007 | 0.00 | JAVA0007 Should not declare public field | |
| JAVA0008 | 0.00 | JAVA0008 Empty catch block | |
| JAVA0009 | 0.00 | JAVA0009 Protected member in final class | |
| JAVA0010 | 0.00 | JAVA0010 Non-instantiable class does not contain a non-private static member | |
| JAVA0011 | 0.00 | JAVA0011 Abstract class does not contain an abstract method | |
| JAVA0012 | 0.00 | JAVA0012 Non-constructor method with same name as declaring class | |
| JAVA0013 | 0.00 | JAVA0013 Non-blank final field is not static | |
| JAVA0014 | 0.00 | JAVA0014 Class with only static members has non-private constructor | |
| JAVA0015 | 0.00 | JAVA0015 Package class contains public nested type | |
| JAVA0016 | 0.00 | JAVA0016 Abstract class contains public constructor | |
| JAVA0017 | 0.00 | JAVA0017 Class name does not have required form | |
| JAVA0018 | 0.00 | JAVA0018 Method name does not have required form | |
| JAVA0019 | 0.00 | JAVA0019 Interface name does not have required form | |
| JAVA0020 | 0.00 | JAVA0020 Field name does not have required form | |
| JAVA0021 | 0.00 | JAVA0021 Interface method name does not have required form | |
| JAVA0022 | 0.00 | JAVA0022 Static final field name does not have required form | |
| JAVA0023 | 0.00 | JAVA0023 Empty finalize method | |
| JAVA0024 | 0.00 | JAVA0024 Empty class | |
| JAVA0025 | 0.00 | JAVA0025 Method override is empty | |
| JAVA0026 | 0.00 | JAVA0026 Finalize method with parameters | |
| JAVA0029 | 0.00 | JAVA0029 Private method not used | |
| JAVA0030 | 0.00 | JAVA0030 Private field not used | |
| JAVA0031 | 1.00 | 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 | 4.00 | 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 | 22.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 33.00 | 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 | 2.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 10.00 | 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 | 3.00 | 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 | 1.00 | 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 | 4.00 | 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 | 835.00 | Number of lines in the source file | |
| LINE_COMMENT | 8.00 | Number of line comments | |
| LOC | 547.00 | Lines of code | |
| LOGICAL_LINES | 221.00 | Number of statements | |
| LOOPS | 11.00 | Number of loops | |
| NEST_DEPTH | 5.00 | Maximum nesting depth | |
| OPERANDS | 733.00 | Number of operands | |
| OPERATORS | 1740.00 | Number of operators | |
| PARAMS | 33.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 2473.00 | Halstead program length | |
| PROGRAM_VOCAB | 289.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 68.00 | Number of return points from functions | |
| SIZE | 20771.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 231.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 58.00 | Number of unique operators | |
| WHITESPACE | 92.00 | Number of whitespace lines | |