Include.java
| Index Score | ||
|---|---|---|
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org.apache.struts2.components |
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Struts 2 |
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 | |
|---|---|---|
| JAVA0034 | JAVA0034 Missing braces in if statement |  |
| JAVA0128 | JAVA0128 Public constructor in non-public class | |
| JAVA0115 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| EXITS | Procedure exits | |
| JAVA0009 | JAVA0009 Protected member in final class | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0166 | JAVA0166 Generic exception caught | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| UNIQUE_OPERANDS | Number of unique operands | |
| PROGRAM_VOLUME | Halstead program volume | |
| UNIQUE_OPERATORS | Number of unique operators | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0179 | JAVA0179 Local variable hides visible field | |
| EXEC_COMMENTS | Comments in executable code | |
| SIZE | Size of the file in bytes | |
| JAVA0254 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| LINE_COMMENT | Number of line comments | |
| JAVA0075 | JAVA0075 Method parameter hides field | |
| NEST_DEPTH | Maximum nesting depth | |
| COMPARISONS | Number of comparison operators | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
/*
* $Id: Include.java 651946 2008-04-27 13:41:38Z apetrelli $
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.struts2.components;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.Writer;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Stack;
import java.util.StringTokenizer;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.ServletRequest;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpServletResponseWrapper;
import org.apache.struts2.RequestUtils;
import org.apache.struts2.StrutsConstants;
import org.apache.struts2.util.FastByteArrayOutputStream;
import org.apache.struts2.views.annotations.StrutsTag;
import org.apache.struts2.views.annotations.StrutsTagAttribute;
import com.opensymphony.xwork2.inject.Inject;
import com.opensymphony.xwork2.util.ValueStack;
import com.opensymphony.xwork2.util.logging.Logger;
import com.opensymphony.xwork2.util.logging.LoggerFactory;
/**
* <!-- START SNIPPET: javadoc -->
* <p>Include a servlet's output (result of servlet or a JSP page).</p>
* <p>Note: Any additional params supplied to the included page are <b>not</b>
* accessible within the rendered page through the <s:property...> tag
* since no valuestack will be created. You can, however, access them in a
* servlet via the HttpServletRequest object or from a JSP page via
* a scriptlet.</p>
* <!-- END SNIPPET: javadoc -->
*
*
* <!-- START SNIPPET: params -->
* <ul>
* <li>value* (String) - jsp page to be included</li>
* </ul>
* <!-- END SNIPPET: params -->
*
*
* <p/> <b>Examples</b>
* <pre>
* <!-- START SNIPPET: example -->
* <-- One: -->
* <s:include value="myJsp.jsp" />
*
* <-- Two: -->
* <s:include value="myJsp.jsp">
* <s:param name="param1" value="value2" />
* <s:param name="param2" value="value2" />
* </s:include>
*
* <-- Three: -->
* <s:include value="myJsp.jsp">
* <s:param name="param1">value1</s:param>
* <s:param name="param2">value2</s:param>
* </s:include>
* <!-- END SNIPPET: example -->
*
* <!-- START SNIPPET: exampledescription -->
* Example one - do an include myJsp.jsp page
* Example two - do an include to myJsp.jsp page with parameters param1=value1 and param2=value2
* Example three - do an include to myJsp.jsp page with parameters param1=value1 and param2=value2
* <!-- END SNIPPET: exampledescription -->
* </pre>
*
*/
@StrutsTag(name="include", tldTagClass="org.apache.struts2.views.jsp.IncludeTag", description="Include a servlet's output " +
"(result of servlet or a JSP page)")
public class Include extends Component {
private static final Logger LOG = LoggerFactory.getLogger(Include.class);
private static String encoding;
private static boolean encodingDefined = true;
protected String value;
private HttpServletRequest req;
private HttpServletResponse res;
private static String defaultEncoding;
public Include(ValueStack stack, HttpServletRequest req, HttpServletResponse res) {
super(stack);
this.req = req;
this.res = res;
}
@Inject(StrutsConstants.STRUTS_I18N_ENCODING)
public void setDefaultEncoding(String encoding) {
defaultEncoding = encoding;
}
public boolean end(Writer writer, String body) {
String page = findString(value, "value", "You must specify the URL to include. Example: /foo.jsp");
StringBuffer urlBuf = new StringBuffer();
// Add URL
urlBuf.append(page);
// Add request parameters
if (parameters.size() > 0) {
urlBuf.append('?');
String concat = "";
// Set parameters
Iterator iter = parameters.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry) iter.next();
Object name = entry.getKey();
List values = (List) entry.getValue();
for (int i = 0; i < values.size(); i++) {
urlBuf.append(concat);
urlBuf.append(name);
urlBuf.append('=');
try {
urlBuf.append(URLEncoder.encode(values.get(i).toString(), "UTF-8"));
} catch (Exception e) {
LOG.warn("unable to url-encode "+values.get(i).toString()+", it will be ignored");
}
concat = "&";
}
}
}
String result = urlBuf.toString();
// Include
try {
include(result, writer, req, res);
} catch (Exception e) {
LOG.warn("Exception thrown during include of " + result, e);
}
return super.end(writer, body);
}
@StrutsTagAttribute(description="The jsp/servlet output to include", required=true)
public void setValue(String value) {
this.value = value;
}
public static String getContextRelativePath(ServletRequest request, String relativePath) {
String returnValue;
if (relativePath.startsWith("/")) {
returnValue = relativePath;
} else if (!(request instanceof HttpServletRequest)) {
returnValue = relativePath;
} else {
HttpServletRequest hrequest = (HttpServletRequest) request;
String uri = (String) request.getAttribute("javax.servlet.include.servlet_path");
if (uri == null) {
uri = RequestUtils.getServletPath(hrequest);
}
returnValue = uri.substring(0, uri.lastIndexOf('/')) + '/' + relativePath;
}
// .. is illegal in an absolute path according to the Servlet Spec and will cause
// known problems on Orion application servers.
if (returnValue.indexOf("..") != -1) {
Stack stack = new Stack();
StringTokenizer pathParts = new StringTokenizer(returnValue.replace('\\', '/'), "/");
while (pathParts.hasMoreTokens()) {
String part = pathParts.nextToken();
if (!part.equals(".")) {
if (part.equals("..")) {
stack.pop();
} else {
stack.push(part);
}
}
}
StringBuffer flatPathBuffer = new StringBuffer();
for (int i = 0; i < stack.size(); i++) {
flatPathBuffer.append("/").append(stack.elementAt(i));
}
returnValue = flatPathBuffer.toString();
}
return returnValue;
}
public void addParameter(String key, Object value) {
// don't use the default implementation of addParameter,
// instead, include tag requires that each parameter be a list of objects,
// just like the HTTP servlet interfaces are (String[])
if (value != null) {
List currentValues = (List) parameters.get(key);
if (currentValues == null) {
currentValues = new ArrayList();
parameters.put(key, currentValues);
}
currentValues.add(value);
}
}
public static void include(String aResult, Writer writer, ServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String resourcePath = getContextRelativePath(request, aResult);
RequestDispatcher rd = request.getRequestDispatcher(resourcePath);
if (rd == null) {
throw new ServletException("Not a valid resource path:" + resourcePath);
}
PageResponse pageResponse = new PageResponse(response);
// Include the resource
rd.include((HttpServletRequest) request, pageResponse);
//write the response back to the JspWriter, using the correct encoding.
String encoding = getEncoding();
if (encoding != null) {
//use the encoding specified in the property file
pageResponse.getContent().writeTo(writer, encoding);
} else {
//use the platform specific encoding
pageResponse.getContent().writeTo(writer, null);
}
}
/**
* Get the encoding specified by the property 'struts.i18n.encoding' in struts.properties,
* or return the default platform encoding if not specified.
* <p/>
* Note that if the property is not initially defined, this will return the system default,
* even if the property is later defined. This is mainly for performance reasons. Undefined
* properties throw exceptions, which are a costly operation.
* <p/>
* If the property is initially defined, it is read every time, until is is undefined, and then
* the system default is used.
* <p/>
* Why not cache it completely? Some applications will wish to be able to dynamically set the
* encoding at runtime.
*
* @return The encoding to be used.
*/
private static String getEncoding() {
if (encodingDefined) {
try {
encoding = defaultEncoding;
} catch (IllegalArgumentException e) {
encoding = System.getProperty("file.encoding");
encodingDefined = false;
}
}
return encoding;
}
/**
* Implementation of ServletOutputStream that stores all data written
* to it in a temporary buffer accessible from {@link #getBuffer()} .
*
* @author <a href="joe@truemesh.com">Joe Walnes</a>
* @author <a href="mailto:scott@atlassian.com">Scott Farquhar</a>
*/
static final class PageOutputStream extends ServletOutputStream {
private FastByteArrayOutputStream buffer;
public PageOutputStream() {
buffer = new FastByteArrayOutputStream();
}
/**
* Return all data that has been written to this OutputStream.
*/
public FastByteArrayOutputStream getBuffer() throws IOException {
flush();
return buffer;
}
public void close() throws IOException {
buffer.close();
}
public void flush() throws IOException {
buffer.flush();
}
public void write(byte[] b, int o, int l) throws IOException {
buffer.write(b, o, l);
}
public void write(int i) throws IOException {
buffer.write(i);
}
public void write(byte[] b) throws IOException {
buffer.write(b);
}
}
/**
* Simple wrapper to HTTPServletResponse that will allow getWriter()
* and getResponse() to be called as many times as needed without
* causing conflicts.
* <p/>
* The underlying outputStream is a wrapper around
* {@link PageOutputStream} which will store
* the written content to a buffer.
* <p/>
* This buffer can later be retrieved by calling {@link #getContent}.
*
* @author <a href="mailto:joe@truemesh.com">Joe Walnes</a>
* @author <a href="mailto:scott@atlassian.com">Scott Farquhar</a>
*/
static final class PageResponse extends HttpServletResponseWrapper {
protected PrintWriter pagePrintWriter;
protected ServletOutputStream outputStream;
private PageOutputStream pageOutputStream = null;
/**
* Create PageResponse wrapped around an existing HttpServletResponse.
*/
public PageResponse(HttpServletResponse response) {
super(response);
}
/**
* Return the content buffered inside the {@link PageOutputStream}.
*
* @return
* @throws IOException
*/
public FastByteArrayOutputStream getContent() throws IOException {
//if we are using a writer, we need to flush the
//data to the underlying outputstream.
//most containers do this - but it seems Jetty 4.0.5 doesn't
if (pagePrintWriter != null) {
pagePrintWriter.flush();
}
return ((PageOutputStream) getOutputStream()).getBuffer();
}
/**
* Return instance of {@link PageOutputStream}
* allowing all data written to stream to be stored in temporary buffer.
*/
public ServletOutputStream getOutputStream() throws IOException {
if (pageOutputStream == null) {
pageOutputStream = new PageOutputStream();
}
return pageOutputStream;
}
/**
* Return PrintWriter wrapper around PageOutputStream.
*/
public PrintWriter getWriter() throws IOException {
if (pagePrintWriter == null) {
pagePrintWriter = new PrintWriter(new OutputStreamWriter(getOutputStream(), getCharacterEncoding()));
}
return pagePrintWriter;
}
}
}
The table below shows all metrics for Include.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 47.00 | Number of blocks | |
| BLOCK_COMMENT | 20.00 | Number of block comment lines | |
| COMMENTS | 137.00 | Comment lines | |
| COMMENT_DENSITY | 0.84 | Comment density | |
| COMPARISONS | 19.00 | Number of comparison operators | |
| CYCLOMATIC | 41.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 10.00 | Comments in declarations | |
| DOC_COMMENT | 101.00 | Number of javadoc comment lines | |
| ELOC | 164.00 | Effective lines of code | |
| EXEC_COMMENTS | 11.00 | Comments in executable code | |
| EXITS | 54.00 | Procedure exits | |
| FUNCTIONS | 19.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 58.27 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 55.00 | Interface complexity | |
| JAVA0001 | 1.00 | 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 | 2.00 | 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 | 1.00 | 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 | 1.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 3.00 | 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 | 3.00 | 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 | 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 | 1.00 | 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 | 2.00 | 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 | 1.00 | JAVA0177 Variable declaration missing initializer | |
| JAVA0179 | 1.00 | 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 | 1.00 | 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 | 415.00 | Number of lines in the source file | |
| LINE_COMMENT | 16.00 | Number of line comments | |
| LOC | 207.00 | Lines of code | |
| LOGICAL_LINES | 114.00 | Number of statements | |
| LOOPS | 4.00 | Number of loops | |
| NEST_DEPTH | 5.00 | Maximum nesting depth | |
| OPERANDS | 522.00 | Number of operands | |
| OPERATORS | 910.00 | Number of operators | |
| PARAMS | 21.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 1432.00 | Halstead program length | |
| PROGRAM_VOCAB | 263.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 34.00 | Number of return points from functions | |
| SIZE | 14080.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 215.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 48.00 | Number of unique operators | |
| WHITESPACE | 71.00 | Number of whitespace lines | |