>
> Is the FileReader "instanceof $wnd.FileReader"? (Walk up the chain)
What is interesting, FileReader created with JSNI *is not*
isInstanceOfFileReader,
public static native FileReader newFileReader() /*-{
return new FileReader();
}-*/;
but FileReader created with jsType and jsConstructor *is *
isInstanceOfFileReader
@JsType(isNative = true) public class FileReader { public FileReader() {}
};
isInstanceOfFileReader(fileReader) = true
> isInstanceOfFileReader(fileReader2) = false
The same for ArrayBuffer, one created with JSNI not a buffer passing
isInstanceOfArrayBuffer, but one created with "new ArrayBuffer(10)" form
java is passing isInstanceOfArrayBuffer.
Both FileReaders can read files and both ArrayBuffer returned form reading *IS
NOT *passing isInstanceOfArrayBuffer.
If isInstanceOfArrayBuffer is false, then this is likely the root issue
Then I created a "good" ArrayBuffer (by java call new to JsConstructor).
And copyed content of files` "bad" buffer (not passing
isInstanceOfArrayBuffer) to good one (that passing isInstanceOfArrayBuffer).
And then send the new buffer to the old crashing generic function :
ArrayBuffer arrayBuffer = fileReader2.resultArrayBuffer();
Logger.log("instanceOfArrayBuffer for file = " +
isInstanceOfArrayBuffer(arrayBuffer));
ArrayBuffer good = new ArrayBuffer(arrayBuffer.getByteLength());
new Int8Array(good).set(new Int8Array(arrayBuffer));
Logger.log("instanceOfArrayBuffer for good copy = " +
isInstanceOfArrayBuffer(good));
handleJetFile(name, arrayBuffer);
It is still craching in the same location.
instanceOfArrayBuffer for file = false
instanceOfArrayBuffer for good copy = true
Uncaught Error: java.lang.ClassCastException
Any suggestions ?
Thanks
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