updated

android/src/org/purplei2p/i2pd/DaemonSingleton.java

@@ -18,7 +18,7 @@ public class DaemonSingleton {
 	public synchronized void addStateChangeListener(StateChangeListener listener) { stateChangeListeners.add(listener); }
 	public synchronized void removeStateChangeListener(StateChangeListener listener) { stateChangeListeners.remove(listener); }
 	
-	public void stopAcceptingTunnels() {
+	public synchronized void stopAcceptingTunnels() {
 		if(isStartedOkay()){
 			state=State.gracefulShutdownInProgress;
 			fireStateChange();
@@ -39,6 +39,7 @@ public class DaemonSingleton {
 	public State getState() { return state; }
 	
 	{
+		synchronized(this){
 			fireStateChange();
 			new Thread(new Runnable(){
 	
@@ -46,29 +47,38 @@ public class DaemonSingleton {
 				public void run() {
 					try {
 						I2PD_JNI.loadLibraries();
+						synchronized (DaemonSingleton.this) {
 							state = State.jniLibraryLoaded;
 							fireStateChange();
+						}
 					} catch (Throwable tr) {
 						lastThrowable=tr;
+						synchronized (DaemonSingleton.this) {
 							state = State.startFailed;
 							fireStateChange();
+						}
 						return;
 					}
 					try {
+						synchronized (DaemonSingleton.this) {
 							daemonStartResult = I2PD_JNI.startDaemon();
 							if("ok".equals(daemonStartResult)){state=State.startedOkay;setStartedOkay(true);}
 							else state=State.startFailed;
 							fireStateChange();
+						}
 					} catch (Throwable tr) {
 						lastThrowable=tr;
+						synchronized (DaemonSingleton.this) {
 							state = State.startFailed;
 							fireStateChange();
+						}
 						return;
 					}				
 				}
 				
 			}, "i2pdDaemonStart").start();
 		}
+	}
 	private Throwable lastThrowable;
 	private String daemonStartResult="N/A";
 
@@ -91,15 +101,21 @@ public class DaemonSingleton {
 		return daemonStartResult;
 	}
 	
-	public synchronized boolean isStartedOkay() {
+	private final Object startedOkayLock = new Object();
+
+	public boolean isStartedOkay() {
+		synchronized (startedOkayLock) {
 			return startedOkay;
 		}
+	}
 
-	private synchronized void setStartedOkay(boolean startedOkay) {
+	private void setStartedOkay(boolean startedOkay) {
+		synchronized (startedOkayLock) {
 			this.startedOkay = startedOkay;
 		}
+	}
 
-	public void stopDaemon() {
+	public synchronized void stopDaemon() {
 		if(isStartedOkay()){
 			try {I2PD_JNI.stopDaemon();}catch(Throwable tr){Log.e(TAG, "", tr);}
 			setStartedOkay(false);

android/src/org/purplei2p/i2pd/I2PD.java

@@ -5,8 +5,6 @@ import java.io.StringWriter;
 import java.util.Timer;
 import java.util.TimerTask;
 
-import org.purplei2p.i2pd.DaemonSingleton.State;
-
 import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.content.ComponentName;
@@ -76,8 +74,9 @@ public class I2PD extends Activity {
 	private void localDestroy() {
 		textView = null;
 		daemon.removeStateChangeListener(daemonStateChangeListener);
-		if(getGracefulQuitTimer()!=null) {
+		Timer gracefulQuitTimer = getGracefulQuitTimer();
-			getGracefulQuitTimer().cancel();
+		if(gracefulQuitTimer!=null) {
+			gracefulQuitTimer.cancel();
 			setGracefulQuitTimer(null);
 		}
 		try{