Android Webview JNI ERROR with loadUrl

Android Webview JNI ERROR with loadUrl

I'm writing an Android App which is opening a locally stored html file
check.html. This html file is showing some nice text and then
http-forwarding to my real wanted webpage. Now it can happen, that the
server is down, or even the network is unplugged, but I want the app to
keep trying to reach it all the time.
In case that just the server is down, Android has some latency when asking
for the webpage before returning to onReceivedError(), so I don't have a
problem, but if the network is unplugged, it returns immediately.
After 1 to 2 minutes my app crashes with:
08-22 14:17:47.382: D/dalvikvm(8337): GC_CONCURRENT freed 178K, 3% free
12530K/12807K, paused 0ms+7ms
08-22 14:17:57.572: D/dalvikvm(8337): GC_CONCURRENT freed 235K, 3% free
14253K/14599K, paused 0ms+7ms
08-22 14:18:07.882: D/dalvikvm(8337): GC_CONCURRENT freed 241K, 3% free
15969K/16327K, paused 0ms+10ms
08-22 14:18:17.717: D/dalvikvm(8337): GC_CONCURRENT freed 237K, 2% free
17717K/18055K, paused 0ms+13ms
08-22 14:18:28.757: D/dalvikvm(8337): GC_CONCURRENT freed 249K, 2% free
19468K/19783K, paused 3ms+3ms
08-22 14:18:39.105: D/dalvikvm(8337): GC_CONCURRENT freed 241K, 2% free
21185K/21511K, paused 4ms+10ms
08-22 14:18:49.008: D/dalvikvm(8337): GC_CONCURRENT freed 238K, 2% free
22900K/23239K, paused 0ms+10ms
08-22 14:18:51.157: E/dalvikvm(8337): JNI ERROR (app bug): local reference
table overflow (max=512)
08-22 14:18:51.157: W/dalvikvm(8337): JNI local reference table
(0x1729e78) dump:
08-22 14:18:51.157: W/dalvikvm(8337): Last 10 entries (of 512):
08-22 14:18:51.157: W/dalvikvm(8337): 511: 0x410dec88
android.content.res.AssetManager
08-22 14:18:51.157: W/dalvikvm(8337): 510: 0x4215db30 byte[] (32768 elements)
08-22 14:18:51.157: W/dalvikvm(8337): 509: 0x42155b18 byte[] (32768 elements)
08-22 14:18:51.158: E/dalvikvm(8337): Failed adding to JNI local ref table
(has 512 entries)
Here is the code:
mWebView = (WebView) findViewById(R.id.webView);
mWebView.setWebChromeClient(new KB_WebChromeClient(this));
mWebView.setWebViewClient(new KB_WebViewClient());
mWebView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
mWebView.clearCache(true);
mWebView.clearHistory();
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
mWebView.addJavascriptInterface(new WebAppInterface(this, this), "Android");
mWebView.loadUrl("file:///android_asset/check.html");
The WebViewClient has the following code:
public class KB_WebViewClient extends WebViewClient {
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
view.clearCache(true);
}
@Override
public void onReceivedError (WebView view, int errorCode, String
description, String failingUrl)
{
view.loadUrl("file:///android_asset/check.html");
}
}
Basically, the check.html page is loaded, onPageFinished is called and
then the html forwards to the other page, which is not working, so
onReceivedError is called, which will start loading the check.html again
aso.
On my research I found SO: Android Expand JNI Local Reference Table, where
the answer is
You need to delete local references to classes as well as to objects.
What does it mean and where is my problem? Does webview.loadUrl create
anything complex and the Garbage Collector is not fast enough to clean up?
I don't create the WebView all the time, so what is messing around?
Thanks for help in advance!