[jboss-remoting-issues] [JBoss JIRA] Closed: (JBREM-1170) System.gc() should not call in ServerInvokerCallbackHandler

System.gc() should not call in ServerInvokerCallbackHandler ----------------------------------------------------------- Key: JBREM-1170 URL: https://jira.jboss.org/jira/browse/JBREM-1170 Project: JBoss Remoting Issue Type: Quality Risk Security Level: Public(Everyone can see) Components: callbacks Affects Versions: 2.2.2.SP11 Reporter: ryu ken It seems System.gc() will be call when Memory Low has been detected. In fact, calling System.gc() may cause performance problems. handleCallback(): // need to check if should persist callback instead of keeping in memory if(shouldPersist()) { try { persistCallback(callback); synchronized (callbacks) { callbacks.notify(); } callback = null; // try to help out with the amount of memory usuage new Thread() { public void run() { System.gc(); } }.start(); } catch(IOException e) { log.error("Unable to persist callback", e); throw new HandleCallbackException("Unable to persist callback and will not " + "be able to deliver.", e); } } getPersistedCallbacks(): if(isMemLow()) { new Thread() { public void run() { System.gc(); } }.start(); break; } isMemLow(): Runtime runtime = Runtime.getRuntime(); long max = runtime.maxMemory(); long total = runtime.totalMemory(); long free = runtime.freeMemory(); float percentage = 100 * free / total; if(max == total && memPercentCeiling >= percentage) { return true; } else { return false; }