本文整理了Java中org.apache.tools.ant.Project.createClassLoader()方法的一些代码示例，展示了Project.createClassLoader()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Project.createClassLoader()方法的具体详情如下：
包路径：org.apache.tools.ant.Project
类名称：Project
方法名：createClassLoader

Project.createClassLoader介绍

[英]Factory method to create a class loader for loading classes from a given path.
[中]方法创建一个类加载器，用于从给定路径加载类。

代码示例

代码示例来源：origin: org.apache.ant/ant

/**
 * Returns and initializes the classloader for this class.
 * @return the classloader
 */
public ClassLoader getClassLoader() {
  if (myClassLoader == null) {
    myClassLoader = (classpath == null)
      // the usual classloader
      ? getClass().getClassLoader()
      // additional use the provided classpath
      // Memory leak in line below
      : getProject().createClassLoader(classpath);
  }
  return myClassLoader;
}

代码示例来源：origin: org.apache.ant/ant

/**
 * Gets the Class object associated with the mapper implementation.
 * @return <code>Class</code>.
 * @throws ClassNotFoundException if the class cannot be found
 */
protected Class<? extends FileNameMapper> getImplementationClass() throws ClassNotFoundException {
  String cName = this.classname;
  if (type != null) {
    cName = type.getImplementation();
  }
  ClassLoader loader = (classpath == null)
    ? getClass().getClassLoader()
    // Memory leak in line below
    : getProject().createClassLoader(classpath);
  return Class.forName(cName, true, loader).asSubclass(FileNameMapper.class);
}

代码示例来源：origin: org.apache.ant/ant

/**
 * If a custom classpath has been defined but no loader created
 * yet, create the classloader and set it as the context
 * classloader.
 */
private void setupLoader() {
  if (classpath != null && loader == null) {
    loader = getProject().createClassLoader(classpath);
    loader.setThreadContextLoader();
  }
}

代码示例来源：origin: org.apache.ant/ant

/**
 * Returns a Classloader object which parses the passed in generic EjbJar classpath.
 * The loader is used to dynamically load classes from javax.ejb.* and the classes
 * being added to the jar.
 * @return a classloader.
 */
protected ClassLoader getClassLoaderForBuild() {
  if (classpathLoader != null) {
    return classpathLoader;
  }
  Path combinedClasspath = getCombinedClasspath();
  // only generate a new ClassLoader if we have a classpath
  if (combinedClasspath == null) {
    classpathLoader = getClass().getClassLoader();
  } else {
    // Memory leak in line below
    classpathLoader
      = getTask().getProject().createClassLoader(combinedClasspath);
  }
  return classpathLoader;
}

代码示例来源：origin: org.apache.ant/ant

/**
 * Gets a fresh, different, previously unused classloader that uses the
 * passed path as its classpath.
 *
 * <p>This method completely ignores the ant.reuse.loader magic
 * property and should be used with caution.</p>
 * @param p             Ant Project where the handled components are living in.
 * @param path          the classpath for this loader
 * @param reverseLoader if set to true this new loader will take
 *                      precedence over its parent (which is contra the regular
 *                      classloader behaviour)
 * @return The fresh, different, previously unused class loader.
 */
public static ClassLoader getUniqueClassLoaderForPath(Project p, Path path,
    boolean reverseLoader) {
  AntClassLoader acl = p.createClassLoader(path);
  if (reverseLoader) {
    acl.setParentFirst(false);
    acl.addJavaLibraries();
  }
  return acl;
}

代码示例来源：origin: org.apache.ant/ant

/**
 * Based on the parameter passed in, this method creates the necessary
 * factory desired.
 *
 * The current mapping for compiler names are as follows:
 * <ul><li>jasper = jasper compiler (the default)
 * <li><i>a fully qualified classname</i> = the name of a jsp compiler
 * adapter
 * </ul>
 *
 * @param compilerType either the name of the desired compiler, or the
 * full classname of the compiler's adapter.
 * @param task a task to log through.
 * @return the compiler
 * @throws BuildException if the compiler type could not be resolved into
 * a compiler adapter.
 */
public static JspCompilerAdapter getCompiler(String compilerType, Task task)
  throws BuildException {
  return getCompiler(compilerType, task,
            // Memory-Leak in line below
            task.getProject().createClassLoader(null));
}

代码示例来源：origin: org.apache.ant/ant

/**
   * @since Ant 1.6.2
   */
  private boolean isTomcat5x() {
    try (AntClassLoader l = getProject().createClassLoader(getClasspath())) {
      l.loadClass("org.apache.jasper.tagplugins.jstl.If");
      return true;
    } catch (ClassNotFoundException e) {
      return false;
    }
  }
}

代码示例来源：origin: org.apache.ant/ant

readerLoader = getProject().createClassLoader(classpath);
readerClass = Class.forName(readerClassName, true,
              readerLoader);

代码示例来源：origin: org.apache.ant/ant

try {
  if (ignoreSystemClasses) {
    loader = getProject().createClassLoader(classpath);
    loader.setParentFirst(false);
    loader.addJavaLibraries();

代码示例来源：origin: org.apache.ant/ant

= getProject().createClassLoader(classpath);
c = Class.forName(classname, true, al);

代码示例来源：origin: org.apache.ant/ant

if (classpath != null) {
  cleanup = true;
  cL = getProject().createClassLoader(classpath);
} else {
  cL = this.getClass().getClassLoader();

代码示例来源：origin: org.apache.ant/ant

try {
  if (ignoreSystemclasses) {
    loader = getProject().createClassLoader(classpath);
    loader.setParentFirst(false);
    loader.addJavaLibraries();

代码示例来源：origin: org.apache.ant/ant

.createClassLoader(classpath));

代码示例来源：origin: org.apache.ant/ant

.createClassLoader(classpath));

代码示例来源：origin: org.apache.ant/ant

/**
 * Utility method to lookup a ResourceLocation in the classpath.
 *
 * @return An InputSource for reading the resource, or <code>null</code>
 *    if the resource does not exist in the classpath or is not readable.
 */
private InputSource classpathLookup(ResourceLocation matchingEntry) {
  InputSource source = null;
  Path cp = classpath;
  if (cp != null) {
    cp = classpath.concatSystemClasspath("ignore");
  } else {
    cp = (new Path(getProject())).concatSystemClasspath("last");
  }
  AntClassLoader loader = getProject().createClassLoader(cp);
  //
  // for classpath lookup we ignore the base directory
  //
  InputStream is
    = loader.getResourceAsStream(matchingEntry.getLocation());
  if (is != null) {
    source = new InputSource(is);
    URL entryURL = loader.getResource(matchingEntry.getLocation());
    String sysid = entryURL.toExternalForm();
    source.setSystemId(sysid);
    log("catalog entry matched a resource in the classpath: '"
      + sysid + "'", Project.MSG_DEBUG);
  }
  return source;
}

代码示例来源：origin: org.apache.ant/ant

} else {
  loader
    = getRmic().getProject().createClassLoader(getRmic().getClasspath());
  c = Class.forName(WLRMIC_CLASSNAME, true, loader);

代码示例来源：origin: org.apache.ant/ant

/**
   * Helper method invoked by isRebuildRequired to get a ClassLoader for a
   * Jar File passed to it.
   *
   * @param classjar java.io.File representing jar file to get classes from.
   * @return the classloader for the jarfile.
   * @throws IOException if there is a problem.
   */
  protected ClassLoader getClassLoaderFromJar(File classjar) throws IOException {
    Path lookupPath = new Path(getTask().getProject());

    lookupPath.setLocation(classjar);

    Path classpath = getCombinedClasspath();

    if (classpath != null) {
      lookupPath.append(classpath);
    }
    return getTask().getProject().createClassLoader(lookupPath);
  }
}

代码示例来源：origin: org.apache.ant/ant

/**
   * Helper method invoked by isRebuildRequired to get a ClassLoader for a
   * Jar File passed to it.
   *
   * @param classjar java.io.File representing jar file to get classes from.
   * @return a classloader for the jar file.
   * @throws IOException if there is an error.
   */
  protected ClassLoader getClassLoaderFromJar(File classjar) throws IOException {
    Path lookupPath = new Path(getTask().getProject());

    lookupPath.setLocation(classjar);

    Path classpath = getCombinedClasspath();

    if (classpath != null) {
      lookupPath.append(classpath);
    }

    return getTask().getProject().createClassLoader(lookupPath);
  }
}

代码示例来源：origin: org.apache.ant/ant

Path p = getClasspath().concatSystemClasspath("ignore");
if (parentFirst) {
  cl = getProject().createClassLoader(p);
} else {
  cl = AntClassLoader.newAntClassLoader(getProject()

代码示例来源：origin: org.apache.ant/ant

+ classpath.toString(), Project.MSG_VERBOSE);
try (AntClassLoader cl = classpath.getProject().createClassLoader(classpath)) {