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PO(Android) ANTLRStringStream throwing exception
 

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    <p>I've been trying to get ANTLR-3.5-complete.jar to work on an Android app, but I can't get it to work! Bart Kiers's answer <a href="https://stackoverflow.com/questions/9594966/android-antlr-make-not-working-properly">HERE</a> has helped me a lot, but I still can't get it to work.</p> <p>I'm trying to make a Button that, when clicked, will validate whether the text in the EditText view is correct according to my <strong>grammar.g</strong>, but it doesn't matter whether the text I input is correct or not, my app always crashes when I click the button while instantiating the ANTLRStringStream. Here's what I have:</p> <pre><code>public void onClickVerify(View v) throws TypeNotPresentException { String source = "foobar"; Log.e("TestDebug", "Instantiating views"); TextView out = (TextView) findViewById(R.id.textView1); EditText in = (EditText) findViewById(R.id.editText1); try { Log.e("TestDebug", "Getting source from EditText"); source = in.getText().toString(); Log.e("TestDebug", "source = " + source); Log.e("TestDebug", "Instantiating stream"); ANTLRStringStream stream = new ANTLRStringStream(source); Log.e("TestDebug", "Instantiating lexer"); grammarLexer lexer = new grammarLexer(stream); Log.e("TestDebug", "Instantiating parser"); grammarParser parser = new grammarParser( new BufferedTokenStream(lexer)); Log.e("TestDebug", "Applying rule to parser"); out.setText(source + " = " + !parser.failed()); } catch (IllegalStateException ise) { out.setText("Exception caught"); } } </code></pre> <p>And here's what I see in the logs:</p> <ul> <li>Instantiating views</li> <li>Getting source from EditText</li> <li>source = test33</li> <li>Instantiating stream</li> </ul> <p>And then the "Unfortunately, TestAntlrApp has stopped." window pops up.</p> <p>EDIT: Here's more of my logcat.</p> <pre><code>java.lang.IllegalStateException: Could not execute method of the activity at android.view.View$1.onClick(View.java:3591) at android.view.View.performClick(View.java:4084) at android.view.View$PerformClick.run(View.java:16966) at android.os.Handler.handleCallback(Handler.java:615) at android.os.Handler.dispatchMessage(Handler.java:92) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4745) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at android.view.View$1.onClick(View.java:3586) ... 11 more Caused by: java.lang.NoClassDefFoundError: org.antlr.runtime.ANTLRStringStream at com.test.antlr.MainActivity.onClickVerify(MainActivity.java:89) </code></pre> <p>Something about not finding the class ANTLRStringStream class? However there seems to be no errors/warnings in the code and I can even see the class's hierarchy.</p>
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    1. COWhat happens if you use the ANTLR version mentioned in that previous answer?
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    2. COAnd what exception is thrown? Replace your `catch` with this and post what you see on your log-cat: `catch (Exception e) { Log.e("TestDebug", "Exception caught: ", e); }`
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    3. CO@BartKiers I'll try changing the ANTLR version and see what happens! I changed the `catch` but the code never gets excecuted. It crashes within the `try` without ever reaching `catch`, so my log output remains the same. Edit: v3.3 seems to have been removed from the ANTLR website. I can only find v3.5.
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