JspCompilationContext.java
| Index Score | ||
|---|---|---|
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org.apache.jasper |
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Apache Tomcat |
View: Reasons, Metrics, Source Code
These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.
| Metric | Description | |
|---|---|---|
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag |  |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| CYCLOMATIC | Cyclomatic complexity | |
| BLOCKS | Number of blocks | |
| DECL_COMMENTS | Comments in declarations | |
| FUNCTIONS | Number of function declarations | |
| RETURNS | Number of return points from functions | |
| COMPARISONS | Number of comparison operators | |
| SIZE | Size of the file in bytes | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| ELOC | Effective lines of code | |
| LOC | Lines of code | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| EXITS | Procedure exits | |
| LINES | Number of lines in the source file | |
| LOGICAL_LINES | Number of statements | |
| OPERATORS | Number of operators | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| PROGRAM_LENGTH | Halstead program length | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| UNIQUE_OPERANDS | Number of unique operands | |
| OPERANDS | Number of operands | |
| JAVA0160 | JAVA0160 Method does not throw specified exception | |
| JAVA0031 | JAVA0031 Case statement not properly closed | |
| EXEC_COMMENTS | Comments in executable code | |
| PARAMS | Number of formal parameter declarations | |
| COMMENTS | Comment lines | |
| UNIQUE_OPERATORS | Number of unique operators | |
| DOC_COMMENT | Number of javadoc comment lines | |
| JAVA0115 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0166 | JAVA0166 Generic exception caught | |
| NEST_DEPTH | Maximum nesting depth | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0032 | JAVA0032 Switch statement missing default | |
| JAVA0138 | JAVA0138 N parameters defined for method (maximum: M) | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| LINE_COMMENT | Number of line comments | |
| JAVA0179 | JAVA0179 Local variable hides visible field | |
| JAVA0100 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0075 | JAVA0075 Method parameter hides field | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
/*
* 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.jasper;
import java.io.File;
import java.io.FileNotFoundException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import javax.servlet.ServletContext;
import javax.servlet.jsp.tagext.TagInfo;
import org.apache.jasper.compiler.Compiler;
import org.apache.jasper.compiler.JspRuntimeContext;
import org.apache.jasper.compiler.JspUtil;
import org.apache.jasper.compiler.Localizer;
import org.apache.jasper.compiler.ServletWriter;
import org.apache.jasper.servlet.JasperLoader;
import org.apache.jasper.servlet.JspServletWrapper;
/**
* A place holder for various things that are used through out the JSP
* engine. This is a per-request/per-context data structure. Some of
* the instance variables are set at different points.
*
* Most of the path-related stuff is here - mangling names, versions, dirs,
* loading resources and dealing with uris.
*
* @author Anil K. Vijendran
* @author Harish Prabandham
* @author Pierre Delisle
* @author Costin Manolache
* @author Kin-man Chung
*/
public class JspCompilationContext {
protected org.apache.juli.logging.Log log =
org.apache.juli.logging.LogFactory.getLog(JspCompilationContext.class);
protected Map<String, URL> tagFileJarUrls;
protected boolean isPackagedTagFile;
protected String className;
protected String jspUri;
protected boolean isErrPage;
protected String basePackageName;
protected String derivedPackageName;
protected String servletJavaFileName;
protected String javaPath;
protected String classFileName;
protected String contentType;
protected ServletWriter writer;
protected Options options;
protected JspServletWrapper jsw;
protected Compiler jspCompiler;
protected String classPath;
protected String baseURI;
protected String outputDir;
protected ServletContext context;
protected URLClassLoader loader;
protected JspRuntimeContext rctxt;
protected int removed = 0;
protected URLClassLoader jspLoader;
protected URL baseUrl;
protected Class servletClass;
protected boolean isTagFile;
protected boolean protoTypeMode;
protected TagInfo tagInfo;
protected URL tagFileJarUrl;
// jspURI _must_ be relative to the context
public JspCompilationContext(String jspUri,
boolean isErrPage,
Options options,
ServletContext context,
JspServletWrapper jsw,
JspRuntimeContext rctxt) {
this.jspUri = canonicalURI(jspUri);
this.isErrPage = isErrPage;
this.options = options;
this.jsw = jsw;
this.context = context;
this.baseURI = jspUri.substring(0, jspUri.lastIndexOf('/') + 1);
// hack fix for resolveRelativeURI
if (baseURI == null) {
baseURI = "/";
} else if (baseURI.charAt(0) != '/') {
// strip the basde slash since it will be combined with the
// uriBase to generate a file
baseURI = "/" + baseURI;
}
if (baseURI.charAt(baseURI.length() - 1) != '/') {
baseURI += '/';
}
this.rctxt = rctxt;
this.tagFileJarUrls = new HashMap<String, URL>();
this.basePackageName = Constants.JSP_PACKAGE_NAME;
}
public JspCompilationContext(String tagfile,
TagInfo tagInfo,
Options options,
ServletContext context,
JspServletWrapper jsw,
JspRuntimeContext rctxt,
URL tagFileJarUrl) {
this(tagfile, false, options, context, jsw, rctxt);
this.isTagFile = true;
this.tagInfo = tagInfo;
this.tagFileJarUrl = tagFileJarUrl;
if (tagFileJarUrl != null) {
isPackagedTagFile = true;
}
}
/* ==================== Methods to override ==================== */
/** ---------- Class path and loader ---------- */
/**
* The classpath that is passed off to the Java compiler.
*/
public String getClassPath() {
if( classPath != null )
return classPath;
return rctxt.getClassPath();
}
/**
* The classpath that is passed off to the Java compiler.
*/
public void setClassPath(String classPath) {
this.classPath = classPath;
}
/**
* What class loader to use for loading classes while compiling
* this JSP?
*/
public ClassLoader getClassLoader() {
if( loader != null )
return loader;
return rctxt.getParentClassLoader();
}
public void setClassLoader(URLClassLoader loader) {
this.loader = loader;
}
public ClassLoader getJspLoader() {
if( jspLoader == null ) {
jspLoader = new JasperLoader
(new URL[] {baseUrl},
getClassLoader(),
rctxt.getPermissionCollection(),
rctxt.getCodeSource());
}
return jspLoader;
}
/** ---------- Input/Output ---------- */
/**
* The output directory to generate code into. The output directory
* is make up of the scratch directory, which is provide in Options,
* plus the directory derived from the package name.
*/
public String getOutputDir() {
if (outputDir == null) {
createOutputDir();
}
return outputDir;
}
/**
* Create a "Compiler" object based on some init param data. This
* is not done yet. Right now we're just hardcoding the actual
* compilers that are created.
*/
public Compiler createCompiler() throws JasperException {
if (jspCompiler != null ) {
return jspCompiler;
}
jspCompiler = null;
if (options.getCompilerClassName() != null) {
jspCompiler = createCompiler(options.getCompilerClassName());
} else {
if (options.getCompiler() == null) {
jspCompiler = createCompiler("org.apache.jasper.compiler.JDTCompiler");
if (jspCompiler == null) {
jspCompiler = createCompiler("org.apache.jasper.compiler.AntCompiler");
}
} else {
jspCompiler = createCompiler("org.apache.jasper.compiler.AntCompiler");
if (jspCompiler == null) {
jspCompiler = createCompiler("org.apache.jasper.compiler.JDTCompiler");
}
}
}
if (jspCompiler == null) {
throw new IllegalStateException(Localizer.getMessage("jsp.error.compiler"));
}
jspCompiler.init(this, jsw);
return jspCompiler;
}
protected Compiler createCompiler(String className) {
Compiler compiler = null;
try {
compiler = (Compiler) Class.forName(className).newInstance();
} catch (InstantiationException e) {
log.warn(Localizer.getMessage("jsp.error.compiler"), e);
} catch (IllegalAccessException e) {
log.warn(Localizer.getMessage("jsp.error.compiler"), e);
} catch (NoClassDefFoundError e) {
if (log.isDebugEnabled()) {
log.debug(Localizer.getMessage("jsp.error.compiler"), e);
}
} catch (ClassNotFoundException e) {
if (log.isDebugEnabled()) {
log.debug(Localizer.getMessage("jsp.error.compiler"), e);
}
}
return compiler;
}
public Compiler getCompiler() {
return jspCompiler;
}
/** ---------- Access resources in the webapp ---------- */
/**
* Get the full value of a URI relative to this compilations context
* uses current file as the base.
*/
public String resolveRelativeUri(String uri) {
// sometimes we get uri's massaged from File(String), so check for
// a root directory deperator char
if (uri.startsWith("/") || uri.startsWith(File.separator)) {
return uri;
} else {
return baseURI + uri;
}
}
/**
* Gets a resource as a stream, relative to the meanings of this
* context's implementation.
* @return a null if the resource cannot be found or represented
* as an InputStream.
*/
public java.io.InputStream getResourceAsStream(String res) {
return context.getResourceAsStream(canonicalURI(res));
}
public URL getResource(String res) throws MalformedURLException {
URL result = null;
if (res.startsWith("/META-INF/")) {
// This is a tag file packaged in a jar that is being compiled
URL jarUrl = tagFileJarUrls.get(res);
if (jarUrl == null) {
jarUrl = tagFileJarUrl;
}
if (jarUrl != null) {
result = new URL(jarUrl.toExternalForm() + res.substring(1));
}
} else if (res.startsWith("jar:file:")) {
// This is a tag file packaged in a jar that is being checked
// for a dependency
result = new URL(res);
} else {
result = context.getResource(canonicalURI(res));
}
return result;
}
public Set getResourcePaths(String path) {
return context.getResourcePaths(canonicalURI(path));
}
/**
* Gets the actual path of a URI relative to the context of
* the compilation.
*/
public String getRealPath(String path) {
if (context != null) {
return context.getRealPath(path);
}
return path;
}
/**
* Returns the tag-file-name-to-JAR-file map of this compilation unit,
* which maps tag file names to the JAR files in which the tag files are
* packaged.
*
* The map is populated when parsing the tag-file elements of the TLDs
* of any imported taglibs.
*/
public URL getTagFileJarUrl(String tagFile) {
return this.tagFileJarUrls.get(tagFile);
}
public void setTagFileJarUrl(String tagFile, URL tagFileURL) {
this.tagFileJarUrls.put(tagFile, tagFileURL);
}
/**
* Returns the JAR file in which the tag file for which this
* JspCompilationContext was created is packaged, or null if this
* JspCompilationContext does not correspond to a tag file, or if the
* corresponding tag file is not packaged in a JAR.
*/
public URL getTagFileJarUrl() {
return this.tagFileJarUrl;
}
/* ==================== Common implementation ==================== */
/**
* Just the class name (does not include package name) of the
* generated class.
*/
public String getServletClassName() {
if (className != null) {
return className;
}
if (isTagFile) {
className = tagInfo.getTagClassName();
int lastIndex = className.lastIndexOf('.');
if (lastIndex != -1) {
className = className.substring(lastIndex + 1);
}
} else {
int iSep = jspUri.lastIndexOf('/') + 1;
className = JspUtil.makeJavaIdentifier(jspUri.substring(iSep));
}
return className;
}
public void setServletClassName(String className) {
this.className = className;
}
/**
* Path of the JSP URI. Note that this is not a file name. This is
* the context rooted URI of the JSP file.
*/
public String getJspFile() {
return jspUri;
}
/**
* Are we processing something that has been declared as an
* errorpage?
*/
public boolean isErrorPage() {
return isErrPage;
}
public void setErrorPage(boolean isErrPage) {
this.isErrPage = isErrPage;
}
public boolean isTagFile() {
return isTagFile;
}
public TagInfo getTagInfo() {
return tagInfo;
}
public void setTagInfo(TagInfo tagi) {
tagInfo = tagi;
}
/**
* True if we are compiling a tag file in prototype mode.
* ie we only generate codes with class for the tag handler with empty
* method bodies.
*/
public boolean isPrototypeMode() {
return protoTypeMode;
}
public void setPrototypeMode(boolean pm) {
protoTypeMode = pm;
}
/**
* Package name for the generated class is make up of the base package
* name, which is user settable, and the derived package name. The
* derived package name directly mirrors the file heirachy of the JSP page.
*/
public String getServletPackageName() {
if (isTagFile()) {
String className = tagInfo.getTagClassName();
int lastIndex = className.lastIndexOf('.');
String pkgName = "";
if (lastIndex != -1) {
pkgName = className.substring(0, lastIndex);
}
return pkgName;
} else {
String dPackageName = getDerivedPackageName();
if (dPackageName.length() == 0) {
return basePackageName;
}
return basePackageName + '.' + getDerivedPackageName();
}
}
protected String getDerivedPackageName() {
if (derivedPackageName == null) {
int iSep = jspUri.lastIndexOf('/');
derivedPackageName = (iSep > 0) ?
JspUtil.makeJavaPackage(jspUri.substring(1,iSep)) : "";
}
return derivedPackageName;
}
/**
* The package name into which the servlet class is generated.
*/
public void setServletPackageName(String servletPackageName) {
this.basePackageName = servletPackageName;
}
/**
* Full path name of the Java file into which the servlet is being
* generated.
*/
public String getServletJavaFileName() {
if (servletJavaFileName == null) {
servletJavaFileName = getOutputDir() + getServletClassName() + ".java";
}
return servletJavaFileName;
}
/**
* Get hold of the Options object for this context.
*/
public Options getOptions() {
return options;
}
public ServletContext getServletContext() {
return context;
}
public JspRuntimeContext getRuntimeContext() {
return rctxt;
}
/**
* Path of the Java file relative to the work directory.
*/
public String getJavaPath() {
if (javaPath != null) {
return javaPath;
}
if (isTagFile()) {
String tagName = tagInfo.getTagClassName();
javaPath = tagName.replace('.', '/') + ".java";
} else {
javaPath = getServletPackageName().replace('.', '/') + '/' +
getServletClassName() + ".java";
}
return javaPath;
}
public String getClassFileName() {
if (classFileName == null) {
classFileName = getOutputDir() + getServletClassName() + ".class";
}
return classFileName;
}
/**
* Get the content type of this JSP.
*
* Content type includes content type and encoding.
*/
public String getContentType() {
return contentType;
}
public void setContentType(String contentType) {
this.contentType = contentType;
}
/**
* Where is the servlet being generated?
*/
public ServletWriter getWriter() {
return writer;
}
public void setWriter(ServletWriter writer) {
this.writer = writer;
}
/**
* Gets the 'location' of the TLD associated with the given taglib 'uri'.
*
* @return An array of two Strings: The first element denotes the real
* path to the TLD. If the path to the TLD points to a jar file, then the
* second element denotes the name of the TLD entry in the jar file.
* Returns null if the given uri is not associated with any tag library
* 'exposed' in the web application.
*/
public String[] getTldLocation(String uri) throws JasperException {
String[] location =
getOptions().getTldLocationsCache().getLocation(uri);
return location;
}
/**
* Are we keeping generated code around?
*/
public boolean keepGenerated() {
return getOptions().getKeepGenerated();
}
// ==================== Removal ====================
public void incrementRemoved() {
if (removed == 0 && rctxt != null) {
rctxt.removeWrapper(jspUri);
}
removed++;
}
public boolean isRemoved() {
if (removed > 0 ) {
return true;
}
return false;
}
// ==================== Compile and reload ====================
public void compile() throws JasperException, FileNotFoundException {
createCompiler();
if (jspCompiler.isOutDated()) {
if (isRemoved()) {
throw new FileNotFoundException(jspUri);
}
try {
jspCompiler.removeGeneratedFiles();
jspLoader = null;
jspCompiler.compile();
jsw.setReload(true);
jsw.setCompilationException(null);
} catch (JasperException ex) {
// Cache compilation exception
jsw.setCompilationException(ex);
throw ex;
} catch (Exception ex) {
JasperException je = new JasperException(
Localizer.getMessage("jsp.error.unable.compile"),
ex);
// Cache compilation exception
jsw.setCompilationException(je);
throw je;
}
}
}
// ==================== Manipulating the class ====================
public Class load()
throws JasperException, FileNotFoundException
{
try {
getJspLoader();
String name = getFQCN();
servletClass = jspLoader.loadClass(name);
} catch (ClassNotFoundException cex) {
throw new JasperException(Localizer.getMessage("jsp.error.unable.load"),
cex);
} catch (Exception ex) {
throw new JasperException(Localizer.getMessage("jsp.error.unable.compile"),
ex);
}
removed = 0;
return servletClass;
}
public String getFQCN() {
String name;
if (isTagFile()) {
name = tagInfo.getTagClassName();
} else {
name = getServletPackageName() + "." + getServletClassName();
}
return name;
}
// ==================== protected methods ====================
static Object outputDirLock = new Object();
public void checkOutputDir() {
if (outputDir != null) {
if (!(new File(outputDir)).exists()) {
makeOutputDir();
}
} else {
createOutputDir();
}
}
protected boolean makeOutputDir() {
synchronized(outputDirLock) {
File outDirFile = new File(outputDir);
return (outDirFile.exists() || outDirFile.mkdirs());
}
}
protected void createOutputDir() {
String path = null;
if (isTagFile()) {
String tagName = tagInfo.getTagClassName();
path = tagName.replace('.', File.separatorChar);
path = path.substring(0, path.lastIndexOf(File.separatorChar));
} else {
path = getServletPackageName().replace('.',File.separatorChar);
}
// Append servlet or tag handler path to scratch dir
try {
File base = options.getScratchDir();
baseUrl = base.toURI().toURL();
outputDir = base.getAbsolutePath() + File.separator + path +
File.separator;
if (!makeOutputDir()) {
throw new IllegalStateException(Localizer.getMessage("jsp.error.outputfolder"));
}
} catch (MalformedURLException e) {
throw new IllegalStateException(Localizer.getMessage("jsp.error.outputfolder"), e);
}
}
protected static final boolean isPathSeparator(char c) {
return (c == '/' || c == '\\');
}
protected static final String canonicalURI(String s) {
if (s == null) return null;
StringBuffer result = new StringBuffer();
final int len = s.length();
int pos = 0;
while (pos < len) {
char c = s.charAt(pos);
if ( isPathSeparator(c) ) {
/*
* multiple path separators.
* 'foo///bar' -> 'foo/bar'
*/
while (pos+1 < len && isPathSeparator(s.charAt(pos+1))) {
++pos;
}
if (pos+1 < len && s.charAt(pos+1) == '.') {
/*
* a single dot at the end of the path - we are done.
*/
if (pos+2 >= len) break;
switch (s.charAt(pos+2)) {
/*
* self directory in path
* foo/./bar -> foo/bar
*/
case '/':
case '\\':
pos += 2;
continue;
/*
* two dots in a path: go back one hierarchy.
* foo/bar/../baz -> foo/baz
*/
case '.':
// only if we have exactly _two_ dots.
if (pos+3 < len && isPathSeparator(s.charAt(pos+3))) {
pos += 3;
int separatorPos = result.length()-1;
while (separatorPos >= 0 &&
! isPathSeparator(result
.charAt(separatorPos))) {
--separatorPos;
}
if (separatorPos >= 0)
result.setLength(separatorPos);
continue;
}
}
}
}
result.append(c);
++pos;
}
return result.toString();
}
}
The table below shows all metrics for JspCompilationContext.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 124.00 | Number of blocks | |
| BLOCK_COMMENT | 33.00 | Number of block comment lines | |
| COMMENTS | 170.00 | Comment lines | |
| COMMENT_DENSITY | 0.45 | Comment density | |
| COMPARISONS | 79.00 | Number of comparison operators | |
| CYCLOMATIC | 126.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 35.00 | Comments in declarations | |
| DOC_COMMENT | 120.00 | Number of javadoc comment lines | |
| ELOC | 375.00 | Effective lines of code | |
| EXEC_COMMENTS | 13.00 | Comments in executable code | |
| EXITS | 68.00 | Procedure exits | |
| FUNCTIONS | 54.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 87.92 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 107.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 0.00 | JAVA0002 Package name does not begin with a top level domain name or country code | |
| JAVA0003 | 0.00 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0004 | 0.00 | JAVA0004 Unnecessary import from java.lang | |
| JAVA0005 | 0.00 | JAVA0005 Imports not in specified order | |
| JAVA0006 | 0.00 | JAVA0006 Empty finally block | |
| JAVA0007 | 0.00 | JAVA0007 Should not declare public field | |
| JAVA0008 | 0.00 | JAVA0008 Empty catch block | |
| JAVA0009 | 0.00 | JAVA0009 Protected member in final class | |
| JAVA0010 | 0.00 | JAVA0010 Non-instantiable class does not contain a non-private static member | |
| JAVA0011 | 0.00 | JAVA0011 Abstract class does not contain an abstract method | |
| JAVA0012 | 0.00 | JAVA0012 Non-constructor method with same name as declaring class | |
| JAVA0013 | 0.00 | JAVA0013 Non-blank final field is not static | |
| JAVA0014 | 0.00 | JAVA0014 Class with only static members has non-private constructor | |
| JAVA0015 | 0.00 | JAVA0015 Package class contains public nested type | |
| JAVA0016 | 0.00 | JAVA0016 Abstract class contains public constructor | |
| JAVA0017 | 0.00 | JAVA0017 Class name does not have required form | |
| JAVA0018 | 0.00 | JAVA0018 Method name does not have required form | |
| JAVA0019 | 0.00 | JAVA0019 Interface name does not have required form | |
| JAVA0020 | 0.00 | JAVA0020 Field name does not have required form | |
| JAVA0021 | 0.00 | JAVA0021 Interface method name does not have required form | |
| JAVA0022 | 0.00 | JAVA0022 Static final field name does not have required form | |
| JAVA0023 | 0.00 | JAVA0023 Empty finalize method | |
| JAVA0024 | 0.00 | JAVA0024 Empty class | |
| JAVA0025 | 0.00 | JAVA0025 Method override is empty | |
| JAVA0026 | 0.00 | JAVA0026 Finalize method with parameters | |
| JAVA0029 | 0.00 | JAVA0029 Private method not used | |
| JAVA0030 | 0.00 | JAVA0030 Private field not used | |
| JAVA0031 | 1.00 | JAVA0031 Case statement not properly closed | |
| JAVA0032 | 1.00 | 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 | 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 | 1.00 | 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 | 0.00 | 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 | 19.00 | 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 | 2.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 31.00 | 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 | 2.00 | JAVA0138 N parameters defined for method (maximum: M) | |
| JAVA0139 | 0.00 | JAVA0139 Definition of main other than public static void main(java.lang.String[]) | |
| JAVA0141 | 0.00 | JAVA0141 Unnecessary modifier for method in interface | |
| JAVA0143 | 0.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 0.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 6.00 | 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 | 2.00 | 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 | 1.00 | 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 | 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 | 746.00 | Number of lines in the source file | |
| LINE_COMMENT | 17.00 | Number of line comments | |
| LOC | 481.00 | Lines of code | |
| LOGICAL_LINES | 216.00 | Number of statements | |
| LOOPS | 3.00 | Number of loops | |
| NEST_DEPTH | 6.00 | Maximum nesting depth | |
| OPERANDS | 902.00 | Number of operands | |
| OPERATORS | 1806.00 | Number of operators | |
| PARAMS | 34.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 2708.00 | Halstead program length | |
| PROGRAM_VOCAB | 331.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 73.00 | Number of return points from functions | |
| SIZE | 23682.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 277.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 54.00 | Number of unique operators | |
| WHITESPACE | 95.00 | Number of whitespace lines | |