Classpath (PMD Java 7.0.0-rc4 API)

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface Classpath
```
Classpath abstraction. PMD's symbol resolver uses the classpath to find class files.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`static Classpath`	`contextClasspath()`
`default Classpath`	`delegateTo(Classpath c)`
`default Classpath`	`exclude(Set<String> deletedEntries)`	Return a classpath that will ignore the given classpath entries, even if they are present in this classpath.
`@Nullable URL`	`findResource(String resourcePath)`	Returns a URL to load the given resource if it exists in this classpath.
`static Classpath`	`forClassLoader(ClassLoader classLoader)`	Returns a classpath instance that uses `ClassLoader.getResource(String)` to find resources.

- Method Detail
  - findResource
```
@Nullable URL findResource(String resourcePath)
```
    Returns a URL to load the given resource if it exists in this classpath. Otherwise returns null. This will typically be used to find Java class files. A typical input would be java/lang/String.class.
    
    Parameters:
    
    resourcePath - Resource path, as described in ClassLoader.getResource(String)
    
    Returns:
    
    A URL if the resource exists, otherwise null
  - exclude
```
default Classpath exclude(Set<String> deletedEntries)
```
    Return a classpath that will ignore the given classpath entries, even if they are present in this classpath. Every call to findResource(String) is otherwise delegated to this one.
    
    Parameters:
    
    deletedEntries - Set of resource paths to exclude
  - delegateTo
```
default Classpath delegateTo(Classpath c)
```
  - forClassLoader
```
static Classpath forClassLoader(ClassLoader classLoader)
```
    Returns a classpath instance that uses ClassLoader.getResource(String) to find resources.
  - contextClasspath
```
static Classpath contextClasspath()
```