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347130 Empty getResourcePaths due to ZipFileClosedException

This commit is contained in:
Jan Bartel 2012-07-31 18:31:53 +10:00
parent c7c4c6e13b
commit 4d889de159
1 changed files with 89 additions and 55 deletions
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48
jetty-util/src/main/java/org/eclipse/jetty/util/resource/JarFileResource.java
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@ -19,6 +19,7 @@ import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
@ -108,7 +109,7 @@ class JarFileResource extends JarResource
/* ------------------------------------------------------------ */
/**
* Returns true if the respresenetd resource exists.
* Returns true if the represented resource exists.
*/
@Override
public boolean exists()
@ -240,13 +241,43 @@ class JarFileResource extends JarResource
@Override
public synchronized String[] list()
{
if (isDirectory() && _list==null)
{
ArrayList list = new ArrayList(32);
List<String> list = null;
try
{
list = listEntries();
}
catch (Exception e)
{
//Sun's JarURLConnection impl for jar: protocol will close a JarFile in its connect() method if
//useCaches == false (eg someone called URLConnection with defaultUseCaches==true).
//As their sun.net.www.protocol.jar package caches JarFiles and/or connections, we can wind up in
//the situation where the JarFile we have remembered in our _jarFile member has actually been closed
//by other code.
//So, do one retry to drop a connection and get a fresh JarFile
LOG.warn("Retrying list:"+e);
LOG.debug(e);
release();
list = listEntries();
}
if (list != null)
{
_list=new String[list.size()];
list.toArray(_list);
}
}
return _list;
}
/* ------------------------------------------------------------ */
private List<String> listEntries ()
{
checkConnection();
ArrayList<String> list = new ArrayList<String>(32);
JarFile jarFile=_jarFile;
if(jarFile==null)
{
@ -258,6 +289,8 @@ class JarFileResource extends JarResource
}
catch(Exception e)
{
e.printStackTrace();
LOG.ignore(e);
}
}
@ -295,12 +328,13 @@ class JarFileResource extends JarResource
list.add(listName);
}
_list=new String[list.size()];
list.toArray(_list);
}
return _list;
return list;
}
/* ------------------------------------------------------------ */
/**
* Return the length of the resource