GrailsDispatcherServlet.java
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org.codehaus.groovy.grails.web.servlet |
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Grails |
View: Reasons, Metrics, Source Code
These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.
| Metric | Description | |
|---|---|---|
| EXEC_COMMENTS | Comments in executable code |  |
| LINE_COMMENT | Number of line comments | |
| JAVA0166 | JAVA0166 Generic exception caught | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| EXITS | Procedure exits | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| JAVA0179 | JAVA0179 Local variable hides visible field | |
| SIZE | Size of the file in bytes | |
| JAVA0270 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0177 | JAVA0177 Variable declaration missing initializer | |
| JAVA0115 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| JAVA0144 | JAVA0144 Line exceeds maximum M characters | |
| UNIQUE_OPERANDS | Number of unique operands | |
| LOOPS | Number of loops | |
| OPERANDS | Number of operands | |
| BLOCKS | Number of blocks | |
| JAVA0170 | JAVA0170 Caught exception not derived from java.lang.Exception | |
| PROGRAM_LENGTH | Halstead program length | |
| LOGICAL_LINES | Number of statements | |
| UNIQUE_OPERATORS | Number of unique operators | |
| OPERATORS | Number of operators | |
| NEST_DEPTH | Maximum nesting depth | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0160 | JAVA0160 Method does not throw specified exception | |
| CYCLOMATIC | Cyclomatic complexity | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0254 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| COMPARISONS | Number of comparison operators | |
| LOC | Lines of code | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| ELOC | Effective lines of code | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
/*
* Copyright 2004-2005 the original author or authors.
*
* Licensed 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.codehaus.groovy.grails.web.servlet;
import grails.util.GrailsUtil;
import org.codehaus.groovy.grails.commons.*;
import org.codehaus.groovy.grails.commons.spring.GrailsApplicationContext;
import org.codehaus.groovy.grails.web.context.GrailsConfigUtils;
import org.codehaus.groovy.grails.web.servlet.mvc.GrailsWebRequest;
import org.codehaus.groovy.grails.web.servlet.mvc.SimpleGrailsController;
import org.codehaus.groovy.grails.web.util.WebUtils;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.beans.factory.access.BootstrapException;
import org.springframework.context.i18n.LocaleContext;
import org.springframework.context.i18n.LocaleContextHolder;
import org.springframework.util.Assert;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.WebRequestInterceptor;
import org.springframework.web.context.support.WebApplicationContextUtils;
import org.springframework.web.multipart.MultipartException;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.multipart.MultipartResolver;
import org.springframework.web.servlet.*;
import org.springframework.web.servlet.handler.WebRequestHandlerInterceptorAdapter;
import org.springframework.web.util.NestedServletException;
import org.springframework.web.util.UrlPathHelper;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Iterator;
import java.util.Locale;
import java.util.Map;
/**
* <p>Servlet that handles incoming requests for Grails.
* <p/>
* <p>This servlet loads the Spring configuration based on the Grails application
* in the parent application context.
*
* @author Steven Devijver
* @author Graeme Rocher
*
* @since Jul 2, 2005
*/
public class GrailsDispatcherServlet extends DispatcherServlet {
private GrailsApplication application;
private UrlPathHelper urlHelper = new GrailsUrlPathHelper();
private SimpleGrailsController grailsController;
protected HandlerInterceptor[] interceptors;
protected MultipartResolver multipartResolver;
private static final String EXCEPTION_ATTRIBUTE = "exception";
public GrailsDispatcherServlet() {
super();
setDetectAllHandlerMappings(false);
}
protected void initFrameworkServlet() throws ServletException, BeansException {
super.initFrameworkServlet();
initMultipartResolver();
}
/**
* Initialize the MultipartResolver used by this class.
* If no bean is defined with the given name in the BeanFactory
* for this namespace, no multipart handling is provided.
*/
private void initMultipartResolver() throws BeansException {
try {
this.multipartResolver = (MultipartResolver)
getWebApplicationContext().getBean(MULTIPART_RESOLVER_BEAN_NAME, MultipartResolver.class);
if (logger.isInfoEnabled()) {
logger.info("Using MultipartResolver [" + this.multipartResolver + "]");
}
}
catch (NoSuchBeanDefinitionException ex) {
// Default is no multipart resolver.
this.multipartResolver = null;
if (logger.isInfoEnabled()) {
logger.info("Unable to locate MultipartResolver with name '" + MULTIPART_RESOLVER_BEAN_NAME +
"': no multipart request handling provided");
}
}
}
protected WebApplicationContext createWebApplicationContext(WebApplicationContext parent) throws BeansException {
WebApplicationContext wac = WebApplicationContextUtils.getWebApplicationContext(getServletContext());
WebApplicationContext webContext;
// construct the SpringConfig for the container managed application
Assert.notNull(parent, "Grails requires a parent ApplicationContext, is the /WEB-INF/applicationContext.xml file missing?");
this.application = (GrailsApplication) parent.getBean(GrailsApplication.APPLICATION_ID, GrailsApplication.class);
if(wac instanceof GrailsApplicationContext) {
webContext = wac;
}
else {
webContext = GrailsConfigUtils.configureWebApplicationContext(getServletContext(), parent);
try {
GrailsConfigUtils.executeGrailsBootstraps(application, webContext, getServletContext());
} catch (Exception e) {
GrailsUtil.deepSanitize(e);
if(e instanceof BeansException) throw (BeansException)e;
else {
throw new BootstrapException("Error executing bootstraps", e);
}
}
}
initGrailsController(webContext);
this.interceptors = establishInterceptors(webContext);
return webContext;
}
private void initGrailsController(WebApplicationContext webContext) {
if(webContext.containsBean(SimpleGrailsController.APPLICATION_CONTEXT_ID)) {
this.grailsController = (SimpleGrailsController)webContext.getBean(SimpleGrailsController.APPLICATION_CONTEXT_ID);
}
}
/**
* Evalutes the given WebApplicationContext for all HandlerInterceptor and WebRequestInterceptor instances
*
* @param webContext The WebApplicationContext
* @return An array of HandlerInterceptor instances
*/
protected HandlerInterceptor[] establishInterceptors(WebApplicationContext webContext) {
HandlerInterceptor[] interceptors;
String[] interceptorNames = webContext.getBeanNamesForType(HandlerInterceptor.class);
String[] webRequestInterceptors = webContext.getBeanNamesForType( WebRequestInterceptor.class);
interceptors = new HandlerInterceptor[interceptorNames.length+webRequestInterceptors.length];
// Merge the handler and web request interceptors into a single
// array. Note that we start with the web request interceptors
// to ensure that the OpenSessionInViewInterceptor (which is a
// web request interceptor) is invoked before the user-defined
// filters (which are attached to a handler interceptor). This
// should ensure that the Hibernate session is in the proper
// state if and when users access the database within their
// filters.
int j = 0;
for (int i = 0; i < webRequestInterceptors.length; i++) {
interceptors[j++] = new WebRequestHandlerInterceptorAdapter((WebRequestInterceptor)webContext.getBean(webRequestInterceptors[i]));
}
for (int i = 0; i < interceptorNames.length; i++) {
interceptors[j++] = (HandlerInterceptor)webContext.getBean(interceptorNames[i]);
}
return interceptors;
}
public void destroy() {
WebApplicationContext webContext = getWebApplicationContext();
GrailsApplication application = (GrailsApplication) webContext.getBean(GrailsApplication.APPLICATION_ID, GrailsApplication.class);
GrailsClass[] bootstraps = application.getArtefacts(BootstrapArtefactHandler.TYPE);
for (int i = 0; i < bootstraps.length; i++) {
((GrailsBootstrapClass)bootstraps[i]).callDestroy();
}
super.destroy();
}
public void setApplication(GrailsApplication application) {
this.application = application;
}
/* (non-Javadoc)
* @see org.springframework.web.servlet.DispatcherServlet#doDispatch(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
*/
protected void doDispatch(final HttpServletRequest request, HttpServletResponse response) throws Exception {
HttpServletRequest processedRequest = request;
HandlerExecutionChain mappedHandler = null;
int interceptorIndex = -1;
final LocaleResolver localeResolver = (LocaleResolver)request.getAttribute(LOCALE_RESOLVER_ATTRIBUTE);
// Expose current LocaleResolver and request as LocaleContext.
LocaleContext previousLocaleContext = LocaleContextHolder.getLocaleContext();
LocaleContextHolder.setLocaleContext(new LocaleContext() {
public Locale getLocale() {
return localeResolver.resolveLocale(request);
}
});
// If the request is an include we need to try to use the original wrapped sitemesh
// response, otherwise layouts won't work properly
if(WebUtils.isIncludeRequest(request)) {
response = useWrappedOrOriginalResponse(response);
}
GrailsWebRequest requestAttributes = null;
GrailsWebRequest previousRequestAttributes = null;
try {
ModelAndView mv = null;
try {
Object exceptionAttribute = request.getAttribute(EXCEPTION_ATTRIBUTE);
// only process multipart requests if an exception hasn't occured
if(exceptionAttribute == null)
processedRequest = checkMultipart(request);
// Expose current RequestAttributes to current thread.
previousRequestAttributes = (GrailsWebRequest) RequestContextHolder.currentRequestAttributes();
requestAttributes = new GrailsWebRequest(processedRequest, response, getServletContext());
copyParamsFromPreviousRequest(previousRequestAttributes, requestAttributes);
// Update the current web request.
WebUtils.storeGrailsWebRequest(requestAttributes);
if (logger.isDebugEnabled()) {
logger.debug("Bound request context to thread: " + request);
logger.debug("Using response object: " + response.getClass());
}
// Determine handler for the current request.
mappedHandler = getHandler(processedRequest, false);
if (mappedHandler == null || mappedHandler.getHandler() == null) {
noHandlerFound(processedRequest, response);
return;
}
// Apply preHandle methods of registered interceptors.
if (mappedHandler.getInterceptors() != null) {
for (int i = 0; i < mappedHandler.getInterceptors().length; i++) {
HandlerInterceptor interceptor = mappedHandler.getInterceptors()[i];
if (!interceptor.preHandle(processedRequest, response, mappedHandler.getHandler())) {
triggerAfterCompletion(mappedHandler, interceptorIndex, processedRequest, response, null);
return;
}
interceptorIndex = i;
}
}
// Actually invoke the handler.
HandlerAdapter ha = getHandlerAdapter(mappedHandler.getHandler());
mv = ha.handle(processedRequest, response, mappedHandler.getHandler());
// Apply postHandle methods of registered interceptors.
if (mappedHandler.getInterceptors() != null) {
for (int i = mappedHandler.getInterceptors().length - 1; i >= 0; i--) {
HandlerInterceptor interceptor = mappedHandler.getInterceptors()[i];
interceptor.postHandle(processedRequest, response, mappedHandler.getHandler(), mv);
}
}
}
catch (ModelAndViewDefiningException ex) {
GrailsUtil.deepSanitize(ex);
if (logger.isDebugEnabled())
logger.debug("ModelAndViewDefiningException encountered", ex);
mv = ex.getModelAndView();
}
catch (Exception ex) {
GrailsUtil.deepSanitize(ex);
Object handler = (mappedHandler != null ? mappedHandler.getHandler() : null);
mv = processHandlerException(request, response, handler, ex);
}
// Did the handler return a view to render?
if (mv != null && !mv.wasCleared()) {
// If an exception occurs in here, like a bad closing tag,
// we have nothing to render.
try {
render(mv, processedRequest, response);
} catch (Exception e) {
mv = super.processHandlerException(processedRequest, response, mappedHandler, e);
render(mv, processedRequest, response);
}
}
else {
if (logger.isDebugEnabled()) {
logger.debug("Null ModelAndView returned to DispatcherServlet with name '" +
getServletName() + "': assuming HandlerAdapter completed request handling");
}
}
// Trigger after-completion for successful outcome.
triggerAfterCompletion(mappedHandler, interceptorIndex, processedRequest, response, null);
}
catch (Exception ex) {
// Trigger after-completion for thrown exception.
triggerAfterCompletion(mappedHandler, interceptorIndex, processedRequest, response, ex);
throw ex;
}
catch (Error err) {
ServletException ex = new NestedServletException("Handler processing failed", err);
// Trigger after-completion for thrown exception.
triggerAfterCompletion(mappedHandler, interceptorIndex, processedRequest, response, ex);
throw ex;
}
finally {
// Clean up any resources used by a multipart request.
if (processedRequest instanceof MultipartHttpServletRequest && processedRequest != request) {
if(multipartResolver != null)
this.multipartResolver.cleanupMultipart((MultipartHttpServletRequest) processedRequest);
}
// Reset thread-bound RequestAttributes.
if(requestAttributes != null) {
requestAttributes.requestCompleted();
WebUtils.storeGrailsWebRequest(previousRequestAttributes);
}
// Reset thread-bound LocaleContext.
LocaleContextHolder.setLocaleContext(previousLocaleContext);
if (logger.isDebugEnabled()) {
logger.debug("Cleared thread-bound request context: " + request);
}
}
}
protected HttpServletResponse useWrappedOrOriginalResponse(HttpServletResponse response) {
HttpServletResponse r = WrappedResponseHolder.getWrappedResponse();
if(r != null) return r;
return response;
}
protected void copyParamsFromPreviousRequest(GrailsWebRequest previousRequestAttributes, GrailsWebRequest requestAttributes) {
Map previousParams = previousRequestAttributes.getParams();
Map params = requestAttributes.getParams();
for (Iterator i = previousParams.keySet().iterator(); i.hasNext();) {
String name = (String)i.next();
params.put(name, previousParams.get(name));
}
}
/**
* Trigger afterCompletion callbacks on the mapped HandlerInterceptors.
* Will just invoke afterCompletion for all interceptors whose preHandle
* invocation has successfully completed and returned true.
* @param mappedHandler the mapped HandlerExecutionChain
* @param interceptorIndex index of last interceptor that successfully completed
* @param ex Exception thrown on handler execution, or <code>null</code> if none
* @see HandlerInterceptor#afterCompletion
*/
protected void triggerAfterCompletion(
HandlerExecutionChain mappedHandler, int interceptorIndex,
HttpServletRequest request, HttpServletResponse response, Exception ex)
throws Exception {
// Apply afterCompletion methods of registered interceptors.
if (mappedHandler != null) {
if (mappedHandler.getInterceptors() != null) {
for (int i = interceptorIndex; i >= 0; i--) {
HandlerInterceptor interceptor = mappedHandler.getInterceptors()[i];
try {
interceptor.afterCompletion(request, response, mappedHandler.getHandler(), ex);
}
catch (Throwable ex2) {
logger.error("HandlerInterceptor.afterCompletion threw exception", ex2);
}
}
}
}
}
/**
* Convert the request into a multipart request, and make multipart resolver available.
* If no multipart resolver is set, simply use the existing request.
* @param request current HTTP request
* @return the processed request (multipart wrapper if necessary)
*/
protected HttpServletRequest checkMultipart(HttpServletRequest request) throws MultipartException {
if (this.multipartResolver != null && this.multipartResolver.isMultipart(request)) {
if (request instanceof MultipartHttpServletRequest) {
logger.debug("Request is already a MultipartHttpServletRequest - if not in a forward, " +
"this typically results from an additional MultipartFilter in web.xml");
}
else {
return this.multipartResolver.resolveMultipart(request);
}
}
// If not returned before: return original request.
return request;
}
/**
* Overrides the default behaviour to establish the handler from the GrailsApplication instance
*
* @param request The request
* @param cache Whether to cache the Handler in the request
* @return The HandlerExecutionChain
*
* @throws Exception
*/
protected HandlerExecutionChain getHandler(HttpServletRequest request, boolean cache) throws Exception {
String uri = urlHelper.getPathWithinApplication(request);
if(logger.isDebugEnabled()) {
logger.debug("Looking up Grails controller for URI ["+uri+"]");
}
GrailsControllerClass controllerClass = (GrailsControllerClass) application.getArtefactForFeature(
ControllerArtefactHandler.TYPE, uri);
if(controllerClass!=null) {
HandlerInterceptor[] interceptors;
// if we're in a development environment we want to re-establish interceptors just in case they
// have changed at runtime
if(GrailsUtil.isDevelopmentEnv()) {
interceptors = establishInterceptors(getWebApplicationContext());
}
else {
interceptors = this.interceptors;
}
if(grailsController == null) {
initGrailsController(getWebApplicationContext());
}
return new HandlerExecutionChain(grailsController, interceptors);
}
return null;
}
}
The table below shows all metrics for GrailsDispatcherServlet.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 65.00 | Number of blocks | |
| BLOCK_COMMENT | 18.00 | Number of block comment lines | |
| COMMENTS | 97.00 | Comment lines | |
| COMMENT_DENSITY | 0.43 | Comment density | |
| COMPARISONS | 39.00 | Number of comparison operators | |
| CYCLOMATIC | 63.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 8.00 | Comments in declarations | |
| DOC_COMMENT | 46.00 | Number of javadoc comment lines | |
| ELOC | 224.00 | Effective lines of code | |
| EXEC_COMMENTS | 23.00 | Comments in executable code | |
| EXITS | 64.00 | Procedure exits | |
| FUNCTIONS | 15.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 75.90 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 45.00 | 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 | 1.00 | 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 | 5.00 | 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 | 1.00 | 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 | 1.00 | JAVA0058 Constructor calls super() | |
| JAVA0059 | 0.00 | JAVA0059 Method override only calls super() | |
| JAVA0061 | 0.00 | JAVA0061 Inaccessible member in anonymous class | |
| JAVA0062 | 0.00 | JAVA0062 Public class missing public member or protected constructor | |
| JAVA0063 | 0.00 | JAVA0063 Identifier name should not contain '$' | |
| JAVA0064 | 0.00 | JAVA0064 N variations of identifier name (maximum: M) | |
| JAVA0065 | 0.00 | JAVA0065 Unnecessary final modifier for method in final class | |
| JAVA0066 | 0.00 | JAVA0066 Unnecessary modifier for interface nested type | |
| JAVA0067 | 0.00 | JAVA0067 Array descriptor on identifier name | |
| JAVA0068 | 0.00 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0071 | 0.00 | JAVA0071 Strings compared with == | |
| JAVA0073 | 0.00 | JAVA0073 Integer division in floating-point context | |
| JAVA0074 | 0.00 | JAVA0074 Use of Object.notify() | |
| JAVA0075 | 0.00 | JAVA0075 Method parameter hides field | |
| JAVA0076 | 0.00 | JAVA0076 Use of magic number | |
| JAVA0077 | 0.00 | JAVA0077 Private field not used in declaring class | |
| JAVA0078 | 0.00 | JAVA0078 Floating point values compared with == | |
| JAVA0079 | 0.00 | JAVA0079 Use of instance to reference static member | |
| JAVA0080 | 0.00 | JAVA0080 Import declaration not used | |
| JAVA0081 | 0.00 | JAVA0081 Boolean literal in comparison | |
| JAVA0082 | 0.00 | JAVA0082 Unnecessary widening cast | |
| JAVA0083 | 0.00 | JAVA0083 Unnecessary instanceof test | |
| JAVA0084 | 0.00 | JAVA0084 Should use compound assignment operator | |
| JAVA0085 | 0.00 | JAVA0085 Use of sun.* class | |
| JAVA0087 | 0.00 | JAVA0087 Use of Thread.sleep() | |
| JAVA0089 | 0.00 | JAVA0089 Use of restricted package | |
| JAVA0092 | 0.00 | JAVA0092 Use of restricted type | |
| JAVA0093 | 0.00 | JAVA0093 Redundant assignment | |
| JAVA0094 | 0.00 | JAVA0094 Field hides a superclass field | |
| JAVA0095 | 0.00 | JAVA0095 Uninitialized private field | |
| JAVA0096 | 0.00 | JAVA0096 Field in nested class hides outer field | |
| JAVA0098 | 1.00 | JAVA0098 Minimize use of implicit field initializers | |
| JAVA0100 | 0.00 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0101 | 0.00 | JAVA0101 Unnecessary modifier for field in interface | |
| JAVA0102 | 0.00 | JAVA0102 Last statement in finalize() not super.finalize() | |
| JAVA0103 | 0.00 | JAVA0103 Explicit call to finalize() | |
| JAVA0104 | 0.00 | JAVA0104 finalize() only calls super.finalize() | |
| JAVA0105 | 0.00 | JAVA0105 Duplicate import declaration | |
| JAVA0106 | 0.00 | JAVA0106 Unnecessary import from current package | |
| JAVA0108 | 2.00 | 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 | 3.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 4.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 0.00 | JAVA0118 Missing javadoc: type 'type' | |
| JAVA0119 | 0.00 | JAVA0119 Control variable changed within body of for loop | |
| JAVA0123 | 0.00 | JAVA0123 Use all three components of for loop | |
| JAVA0125 | 0.00 | JAVA0125 Continue statement with label | |
| JAVA0126 | 4.00 | 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 | 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 | 3.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 183.00 | 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 | 1.00 | 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 | 6.00 | JAVA0166 Generic exception caught | |
| JAVA0167 | 0.00 | JAVA0167 ThreadDeath not rethrown | |
| JAVA0169 | 0.00 | JAVA0169 Unnecessary catch block: exception 'exception' | |
| JAVA0170 | 2.00 | 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 | 3.00 | JAVA0177 Variable declaration missing initializer | |
| JAVA0179 | 3.00 | JAVA0179 Local variable hides visible field | |
| JAVA0233 | 0.00 | JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID' | |
| JAVA0234 | 1.00 | 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 | 3.00 | 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 | 438.00 | Number of lines in the source file | |
| LINE_COMMENT | 33.00 | Number of line comments | |
| LOC | 288.00 | Lines of code | |
| LOGICAL_LINES | 160.00 | Number of statements | |
| LOOPS | 7.00 | Number of loops | |
| NEST_DEPTH | 6.00 | Maximum nesting depth | |
| OPERANDS | 756.00 | Number of operands | |
| OPERATORS | 1352.00 | Number of operators | |
| PARAMS | 17.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 2108.00 | Halstead program length | |
| PROGRAM_VOCAB | 305.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 28.00 | Number of return points from functions | |
| SIZE | 19295.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 254.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 51.00 | Number of unique operators | |
| WHITESPACE | 53.00 | Number of whitespace lines | |