HSQLClientConnection.java
| Index Score | ||
|---|---|---|
 |
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org.hsqldb |
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|
HSQL Database Engine |
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 | |
|---|---|---|
| JAVA0143 | JAVA0143 Synchronized method |  |
| JAVA0166 | JAVA0166 Generic exception caught | |
| JAVA0075 | JAVA0075 Method parameter hides field | |
| RETURNS | Number of return points from functions | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| JAVA0008 | JAVA0008 Empty catch block | |
| JAVA0170 | JAVA0170 Caught exception not derived from java.lang.Exception | |
| FUNCTIONS | Number of function declarations | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0115 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| PROGRAM_VOLUME | Halstead program volume | |
| PARAMS | Number of formal parameter declarations | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| EXITS | Procedure exits | |
| EXEC_COMMENTS | Comments in executable code | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| LINE_COMMENT | Number of line comments | |
| COMPARISONS | Number of comparison operators | |
| JAVA0100 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| LOOPS | Number of loops | |
| DOC_COMMENT | Number of javadoc comment lines | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| UNIQUE_OPERANDS | Number of unique operands | |
| BLOCKS | Number of blocks | |
| COMMENTS | Comment lines | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
/* Copyright (c) 2001-2007, The HSQL Development Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the HSQL Development Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.hsqldb;
import java.io.BufferedInputStream;
import java.io.DataInput;
import java.io.DataInputStream;
import java.io.IOException;
import java.net.Socket;
import org.hsqldb.lib.ArrayUtil;
import org.hsqldb.lib.DataOutputStream;
import org.hsqldb.navigator.ClientRowSetNavigator;
import org.hsqldb.result.Result;
import org.hsqldb.result.ResultConstants;
import org.hsqldb.result.ResultLob;
import org.hsqldb.rowio.RowInputBinaryNet;
import org.hsqldb.rowio.RowOutputBinaryNet;
import org.hsqldb.rowio.RowOutputInterface;
import org.hsqldb.server.HsqlSocketFactory;
import org.hsqldb.store.ValuePool;
/**
* Base remote session proxy implementation. Uses instances of Result to
* transmit and recieve data. This implementation utilises the updated HSQL
* protocol.
*
* @author fredt@users
* @version 1.9.0
* @since 1.7.2
*/
public class HSQLClientConnection implements SessionInterface {
static final int BUFFER_SIZE = 0x1000;
final byte[] mainBuffer = new byte[BUFFER_SIZE];
private boolean isClosed;
private Socket socket;
protected DataOutputStream dataOutput;
protected DataInputStream dataInput;
protected RowOutputInterface rowOut;
protected RowInputBinaryNet rowIn;
private Result resultOut;
private long sessionID;
private long lobIDSequence;
//
private boolean isReadOnly = false;
private boolean isAutoCommit = true;
//
String host;
int port;
String path;
String database;
boolean isTLS;
int databaseID;
/**
* Establishes a connection to the server.
*/
public HSQLClientConnection(String host, int port, String path,
String database, boolean isTLS, String user,
String password) throws HsqlException {
this.host = host;
this.port = port;
this.path = path;
this.database = database;
this.isTLS = isTLS;
initStructures();
Result login = Result.newConnectionAttemptRequest(user, password,
database);
initConnection(host, port, isTLS);
Result resultIn = execute(login);
if (resultIn.isError()) {
throw Trace.error(resultIn);
}
sessionID = resultIn.getSessionId();
databaseID = resultIn.getDatabaseId();
}
/**
* resultOut is reused to trasmit all remote calls for session management.
* Here the structure is preset for sending attributes.
*/
private void initStructures() {
RowOutputBinaryNet rowOutTemp = new RowOutputBinaryNet(mainBuffer);
rowOut = rowOutTemp;
rowIn = new RowInputBinaryNet(rowOutTemp);
resultOut = Result.newSessionAttributesResult();
resultOut.getNavigator().add(new Object[7]);
}
protected void initConnection(String host, int port,
boolean isTLS) throws HsqlException {
openConnection(host, port, isTLS);
}
protected void openConnection(String host, int port,
boolean isTLS) throws HsqlException {
try {
socket = HsqlSocketFactory.getInstance(isTLS).createSocket(host,
port);
dataOutput = new DataOutputStream(socket.getOutputStream());
dataInput = new DataInputStream(
new BufferedInputStream(socket.getInputStream()));
} catch (Exception e) {
/** @todo fredt - change error to no connetion established */
throw Trace.error(Trace.SOCKET_ERROR);
}
}
protected void closeConnection() {
try {
if (socket != null) {
socket.close();
}
} catch (Exception e) {}
socket = null;
}
public synchronized Result execute(Result r) throws HsqlException {
try {
r.setSessionId(sessionID);
r.setDatabaseId(databaseID);
write(r);
return read();
} catch (Throwable e) {
throw Trace.error(Trace.CONNECTION_IS_BROKEN, e.toString());
}
}
public ClientRowSetNavigator getRows(long navigatorId, int offset,
int size) throws HsqlException {
try {
resultOut.setResultType(ResultConstants.REQUESTDATA);
resultOut.setResultId(navigatorId);
resultOut.setUpdateCount(offset);
resultOut.setFetchSize(size);
Result result = execute(resultOut);
return (ClientRowSetNavigator) result.getNavigator();
} catch (Throwable e) {
throw Trace.error(Trace.CONNECTION_IS_BROKEN, e.toString());
}
}
public void closeNavigator(long navigatorId) {
try {
resultOut.setResultType(ResultConstants.CLOSE_RESULT);
resultOut.setResultId(navigatorId);
execute(resultOut);
} catch (Throwable e) {}
}
public synchronized void close() {
if (isClosed) {
return;
}
isClosed = true;
try {
resultOut.setResultType(ResultConstants.DISCONNECT);
execute(resultOut);
} catch (Exception e) {}
try {
closeConnection();
} catch (Exception e) {}
}
private Object getAttribute(int id) throws HsqlException {
resultOut.setResultType(ResultConstants.GETSESSIONATTR);
Result in = execute(resultOut);
if (in.isError()) {
throw Trace.error(in);
}
return in.getSingleRowData()[id];
}
private void setAttribute(Object property, int id) throws HsqlException {
resultOut.setResultType(ResultConstants.SETSESSIONATTR);
Object[] data = resultOut.getSingleRowData();
ArrayUtil.fillArray(data, null);
data[id] = property;
Result resultIn = execute(resultOut);
if (resultIn.isError()) {
throw Trace.error(resultIn);
}
}
public synchronized boolean isReadOnly() throws HsqlException {
Object info = getAttribute(Session.INFO_CONNECTION_READONLY);
isReadOnly = ((Boolean) info).booleanValue();
return isReadOnly;
}
public synchronized void setReadOnly(boolean mode) throws HsqlException {
if (mode != isReadOnly) {
setAttribute(mode ? Boolean.TRUE
: Boolean.FALSE, Session
.INFO_CONNECTION_READONLY);
isReadOnly = mode;
}
}
public synchronized boolean isAutoCommit() throws HsqlException {
Object info = getAttribute(SessionInterface.INFO_AUTOCOMMIT);
isAutoCommit = ((Boolean) info).booleanValue();
return isAutoCommit;
}
public synchronized void setAutoCommit(boolean mode)
throws HsqlException {
if (mode != isAutoCommit) {
setAttribute(mode ? Boolean.TRUE
: Boolean.FALSE, SessionInterface
.INFO_AUTOCOMMIT);
isAutoCommit = mode;
}
}
public synchronized void setIsolation(int level) throws HsqlException {
setAttribute(ValuePool.getInt(level),
SessionInterface.INFO_ISOLATION);
}
public synchronized int getIsolation() throws HsqlException {
Object info = getAttribute(Session.INFO_ISOLATION);
return ((Integer) info).intValue();
}
public synchronized boolean isClosed() {
return isClosed;
}
public Session getSession() {
return null;
}
public synchronized void startPhasedTransaction() throws HsqlException {}
public synchronized void prepareCommit() throws HsqlException {
resultOut.setAsTransactionEndRequest(ResultConstants.PREPARECOMMIT,
null);
execute(resultOut);
}
public synchronized void commit() throws HsqlException {
resultOut.setAsTransactionEndRequest(ResultConstants.COMMIT, null);
execute(resultOut);
}
public synchronized void rollback() throws HsqlException {
resultOut.setAsTransactionEndRequest(ResultConstants.ROLLBACK, null);
execute(resultOut);
}
public synchronized void rollbackToSavepoint(String name)
throws HsqlException {
resultOut.setAsTransactionEndRequest(
ResultConstants.SAVEPOINT_NAME_ROLLBACK, name);
execute(resultOut);
}
public synchronized void savepoint(String name) throws HsqlException {
Result result = Result.newSetSavepointRequest(name);
execute(result);
}
public synchronized void releaseSavepoint(String name)
throws HsqlException {
resultOut.setAsTransactionEndRequest(
ResultConstants.SAVEPOINT_NAME_RELEASE, name);
execute(resultOut);
}
public synchronized long getId() {
return sessionID;
}
/**
* Used by pooled connections to reset the server-side session to a new
* one. In case of failure, the connection is closed.
*
* When the Connection.close() method is called, a pooled connection calls
* this method instead of HSQLClientConnection.close(). It can then
* reuse the HSQLClientConnection object with no further initialisation.
*
*/
public synchronized void resetSession() throws HsqlException {
Result login = Result.newResetSessionRequest();
Result resultIn = execute(login);
if (resultIn.isError()) {
isClosed = true;
closeConnection();
throw Trace.error(resultIn);
}
sessionID = resultIn.getSessionId();
databaseID = resultIn.getDatabaseId();
}
protected void write(Result r) throws IOException, HsqlException {
r.write(dataOutput, rowOut);
}
protected Result read() throws IOException, HsqlException {
Result result = Result.newResult(dataInput, rowIn);
result.readAdditionalResults(this, dataInput, rowIn);
rowOut.setBuffer(mainBuffer);
rowIn.resetRow(mainBuffer.length);
return result;
}
/**
* Never called on this class
*/
public String getInternalConnectionURL() {
return null;
}
public synchronized long getLobId() {
return lobIDSequence++;
}
/**
* Does nothing here
*/
public void allocateResultLob(ResultLob resultLob, DataInput dataInput) {}
}
The table below shows all metrics for HSQLClientConnection.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 55.00 | Number of blocks | |
| BLOCK_COMMENT | 29.00 | Number of block comment lines | |
| COMMENTS | 63.00 | Comment lines | |
| COMMENT_DENSITY | 0.30 | Comment density | |
| COMPARISONS | 7.00 | Number of comparison operators | |
| CYCLOMATIC | 50.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 9.00 | Comments in declarations | |
| DOC_COMMENT | 32.00 | Number of javadoc comment lines | |
| ELOC | 208.00 | Effective lines of code | |
| EXEC_COMMENTS | 1.00 | Comments in executable code | |
| EXITS | 44.00 | Procedure exits | |
| FUNCTIONS | 33.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 55.00 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 92.00 | 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 | 4.00 | 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 | 7.00 | 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 | 7.00 | 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 | 0.00 | JAVA0113 Incorrect javadoc: no @author tag | |
| JAVA0114 | 0.00 | 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 | 6.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 0.00 | JAVA0118 Missing javadoc: type 'type' | |
| JAVA0119 | 0.00 | JAVA0119 Control variable changed within body of for loop | |
| JAVA0123 | 0.00 | JAVA0123 Use all three components of for loop | |
| JAVA0125 | 0.00 | JAVA0125 Continue statement with label | |
| JAVA0126 | 0.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 0.00 | JAVA0128 Public constructor in non-public class | |
| JAVA0130 | 0.00 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0131 | 0.00 | JAVA0131 Compatible method does not override base | |
| JAVA0132 | 0.00 | JAVA0132 Method overload with compatible signature | |
| JAVA0133 | 0.00 | JAVA0133 Non-synchronized method overrides synchronized method | |
| JAVA0135 | 0.00 | JAVA0135 Only one of Object.equals and Object.hashCode defined: missing 'method' | |
| JAVA0136 | 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 | 0.00 | JAVA0141 Unnecessary modifier for method in interface | |
| JAVA0143 | 19.00 | 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 | 7.00 | JAVA0166 Generic exception caught | |
| JAVA0167 | 0.00 | JAVA0167 ThreadDeath not rethrown | |
| JAVA0169 | 0.00 | JAVA0169 Unnecessary catch block: exception 'exception' | |
| JAVA0170 | 3.00 | 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 | 414.00 | Number of lines in the source file | |
| LINE_COMMENT | 2.00 | Number of line comments | |
| LOC | 251.00 | Lines of code | |
| LOGICAL_LINES | 133.00 | Number of statements | |
| LOOPS | 0.00 | Number of loops | |
| NEST_DEPTH | 3.00 | Maximum nesting depth | |
| OPERANDS | 539.00 | Number of operands | |
| OPERATORS | 988.00 | Number of operators | |
| PARAMS | 30.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 1527.00 | Halstead program length | |
| PROGRAM_VOCAB | 236.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 62.00 | Number of return points from functions | |
| SIZE | 12339.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 196.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 40.00 | Number of unique operators | |
| WHITESPACE | 100.00 | Number of whitespace lines | |