Hi, I've been using my workflow process without problems so far but did some modifications to execute a node (which calls a bash script) in a loop until some conditions are asserted. The main source code of the node's ActionHandler class is this: | Iterator<String> it = (Iterator<String>)sitesList.iterator(); | | LogRedirectThread lgError = null; | LogRedirectThread lgOutput = null; | | while(it.hasNext()) { | String newSite = (String)it.next(); | | Process proc = rt.exec(pathToCrawl + " " + newSite + " " + pathToData + "/crawl-data/" + topic + " " + (String)contextInstance.getVariable("path") + " " + typeOfSources +" " + depth ); | | lgError = new LogRedirectThread(proc.getErrorStream(),pathToData + "/logs/" + topic + "/crawler_sites_stderr_cycle" + cycleID + ".log"); | lgOutput = new LogRedirectThread(proc.getInputStream(),pathToData + "/logs/" + topic + "/crawler_sites_stdout_cycle" + cycleID + ".log"); | | lgError.start(); | lgOutput.start(); | | int exitVal = proc.waitFor(); | | sitesList.remove(newSite); | | if (exitVal != 0) { | throw new CrawlerException(newSite); | | } | | } | that is, just call the script through the Runtime.exec() interface and creates two threads to read the stdout and stderr standard outputs. The problem is that I'm getting a heap OutOfMemory error when the node is executed more than 5 times (btw, my JAVA_OPTS is -Xmx1500m so that should be ok). My question are: How do jBPM and particularly the ActionHandler's invoker manage memory? and Do I need to release manually the resources created inside the ActionHandler::execute method, in my case the threads? Other useful information: some objects are also injected In my ActionHandler class from Spring framework. The OutOfMemory exception is thrown when, in a new cycle, the class is trying to get those beans from the spring context. Thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4150661#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...