Author: markt Date: Wed Mar 4 22:09:04 2015 New Revision: 1664164 URL: http://svn.apache.org/r1664164 Log: Really fix the file leak this time by getting - and closing - the right InputStream.
Modified: tomcat/tc8.0.x/trunk/ (props changed) tomcat/tc8.0.x/trunk/java/org/apache/catalina/startup/ExpandWar.java Propchange: tomcat/tc8.0.x/trunk/ ------------------------------------------------------------------------------ --- svn:mergeinfo (original) +++ svn:mergeinfo Wed Mar 4 22:09:04 2015 @@ -1 +1 @@ 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907,1658207,1658734,1658781,1658790,1658799,1658802,1658804,1658833,1658840,1658966,1659043,1659053,1659059,1659188-1659189,1659216,1659263,1659293,1659304,1659306-1659307,1659382,1659384,1659428,1659471,1659486,1659505,1659516,1659521,1659524,1659559,1659562,1659803,1659806,1659814,1659833,1659862,1659905,1659919,1659948,1659967,1659983-1659984,1660060,1660074,1660077,1660133,1660168,1660331-1660332,1660353,1660358,1660924,1661386,1661867,1661972,1661990,1662200,1662308-1662309,1662548,1662614,1662736,1662985,1662988-1662989,1663264,1663277,1663298,1663324,1663534,1663562,1663676,1663715,1663754,1663768,1663772,1663781,1663893,1663995,1664143,1664163 Modified: tomcat/tc8.0.x/trunk/java/org/apache/catalina/startup/ExpandWar.java URL: http://svn.apache.org/viewvc/tomcat/tc8.0.x/trunk/java/org/apache/catalina/startup/ExpandWar.java?rev=1664164&r1=1664163&r2=1664164&view=diff ============================================================================== --- tomcat/tc8.0.x/trunk/java/org/apache/catalina/startup/ExpandWar.java (original) +++ tomcat/tc8.0.x/trunk/java/org/apache/catalina/startup/ExpandWar.java Wed Mar 4 22:09:04 2015 @@ -24,6 +24,7 @@ import java.io.IOException; import java.io.InputStream; import java.net.JarURLConnection; import java.net.URL; +import java.net.URLConnection; import java.nio.channels.FileChannel; import java.util.Enumeration; import java.util.jar.JarEntry; @@ -72,57 +73,62 @@ public class ExpandWar { public static String expand(Host host, URL war, String pathname) throws IOException { - // Open the connection to the WAR. There is no explicit close method. - // You have to get the InputStream and close that. + /* Obtaining the last modified time opens an InputStream and there is no + * explicit close method. We have to obtain and then close the + * InputStream to avoid a file leak and the associated locked file. + */ JarURLConnection juc = (JarURLConnection) war.openConnection(); juc.setUseCaches(false); + URL jarFileUrl = juc.getJarFileURL(); + URLConnection jfuc = jarFileUrl.openConnection(); - // Set up the variables used in the finally block of the following try boolean success = false; File docBase = new File(host.getAppBaseFile(), pathname); File warTracker = new File(host.getAppBaseFile(), pathname + Constants.WarTracker); + long warLastModified = -1; - try (JarFile jarFile = juc.getJarFile(); - InputStream is = juc.getInputStream()) { - + try (InputStream is = jfuc.getInputStream()) { // Get the last modified time for the WAR - long warLastModified = juc.getLastModified(); + warLastModified = jfuc.getLastModified(); + } - // Check to see of the WAR has been expanded previously - if (docBase.exists()) { - // A WAR was expanded. Tomcat will have set the last modified - // time of the expanded directory to the last modified time of - // the WAR so changes to the WAR while Tomcat is stopped can be - // detected - if (!warTracker.exists() || warTracker.lastModified() == warLastModified) { - // No (detectable) changes to the WAR - success = true; - return (docBase.getAbsolutePath()); - } - - // WAR must have been modified. Remove expanded directory. - log.info(sm.getString("expandWar.deleteOld", docBase)); - if (!delete(docBase)) { - throw new IOException(sm.getString("expandWar.deleteFailed", docBase)); - } + // Check to see of the WAR has been expanded previously + if (docBase.exists()) { + // A WAR was expanded. Tomcat will have set the last modified + // time of the expanded directory to the last modified time of + // the WAR so changes to the WAR while Tomcat is stopped can be + // detected + if (!warTracker.exists() || warTracker.lastModified() == warLastModified) { + // No (detectable) changes to the WAR + success = true; + return (docBase.getAbsolutePath()); } - // Create the new document base directory - if(!docBase.mkdir() && !docBase.isDirectory()) { - throw new IOException(sm.getString("expandWar.createFailed", docBase)); + // WAR must have been modified. Remove expanded directory. + log.info(sm.getString("expandWar.deleteOld", docBase)); + if (!delete(docBase)) { + throw new IOException(sm.getString("expandWar.deleteFailed", docBase)); } + } - // Expand the WAR into the new document base directory - String canonicalDocBasePrefix = docBase.getCanonicalPath(); - if (!canonicalDocBasePrefix.endsWith(File.separator)) { - canonicalDocBasePrefix += File.separator; - } + // Create the new document base directory + if(!docBase.mkdir() && !docBase.isDirectory()) { + throw new IOException(sm.getString("expandWar.createFailed", docBase)); + } + + // Expand the WAR into the new document base directory + String canonicalDocBasePrefix = docBase.getCanonicalPath(); + if (!canonicalDocBasePrefix.endsWith(File.separator)) { + canonicalDocBasePrefix += File.separator; + } + + // Creating war tracker parent (normally META-INF) + File warTrackerParent = warTracker.getParentFile(); + if (!warTrackerParent.isDirectory() && !warTrackerParent.mkdirs()) { + throw new IOException(sm.getString("expandWar.createFailed", warTrackerParent.getAbsolutePath())); + } - // Creating war tracker parent (normally META-INF) - File warTrackerParent = warTracker.getParentFile(); - if (!warTrackerParent.isDirectory() && !warTrackerParent.mkdirs()) { - throw new IOException(sm.getString("expandWar.createFailed", warTrackerParent.getAbsolutePath())); - } + try (JarFile jarFile = juc.getJarFile()) { Enumeration<JarEntry> jarEntries = jarFile.entries(); while (jarEntries.hasMoreElements()) { --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org