Did you set the right permissions?
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.WRITE_INTERNAL_STORAGE"></uses-permission>
From: cf-dev-bounces@xxxxxxxxxxx [mailto:cf-dev-bounces@xxxxxxxxxxx]
On Behalf Of Francesco Leacche
Sent: Mittwoch, 21. Januar 2015 14:49
To: Californium (Cf) developer discussions
Subject: Re: [cf-dev] Californium on Android
The app crashes when i try to create a client with
CoapClient client
=
new
CoapClient(uri);
Here is a part of the stack trace:
01-20 18:16:45.537 1215-1245/com.wirelesslab.bitsuicide.coaptester I/NetworkConfig﹕
Storing standard properties in file Californium.properties
01-20 18:16:45.916 1215-1245/com.wirelesslab.bitsuicide.coaptester W/NetworkConfig﹕
Error while storing properties to /Californium.properties
java.io.FileNotFoundException: Californium.properties: open failed: EROFS (Read-only file system)
at libcore.io.IoBridge.open(IoBridge.java:456)
at java.io.FileOutputStream.<init>(FileOutputStream.java:87)
at java.io.FileOutputStream.<init>(FileOutputStream.java:72)
at java.io.FileWriter.<init>(FileWriter.java:42)
at org.eclipse.californium.core.network.config.NetworkConfig.store(NetworkConfig.java:218)
at org.eclipse.californium.core.network.config.NetworkConfig.store(NetworkConfig.java:205)
at org.eclipse.californium.core.network.config.NetworkConfig.createStandardWithFile(NetworkConfig.java:170)
at org.eclipse.californium.core.network.config.NetworkConfig.getStandard(NetworkConfig.java:125)
at org.eclipse.californium.core.CoapClient.<init>(CoapClient.java:52)
at com.wirelesslab.bitsuicide.coaptester.MainActivity$RequestTask.doInBackground(MainActivity.java:76)
at com.wirelesslab.bitsuicide.coaptester.MainActivity$RequestTask.doInBackground(MainActivity.java:71)
From what i understood the app crashed because californium tries to create the file “Californium.properties” in the root directory and it’s not authorized! Any ideas?
It should work but I never tried it myself.
Please report your issues!
Julien
Le mar. 20 janv. 2015 18:42, Francesco Leacche <francescoleacche@xxxxxxx> a écrit :
Hi everyone, I’d like to know if Californium works out-of-the-box on Android and if it's just me who encounters problems in using it!
Francesco Leacche
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