Attachment 271576 Details for Bug 527564 – Snippet with minimum set of code to reproduce.

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Snippet with minimum set of code to reproduce.

file_527564.txt (text/plain), 2.07 KB, created by Leo Ufimtsev

on 2017-11-21 15:08:54 EST

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Creator: Leo Ufimtsev

Created: 2017-11-21 15:08:54 EST

Size: 2.07 KB

patch

obsolete

>public class Bug527564_eval_hang {
>
>	static int count = 0;
>
>	public static void main(String[] args) {
>		Display display = new Display();
>		Shell shell = new Shell(display);
>		shell.setSize(500, 600);
>
>		shell.setLayout(new FillLayout());
>		final Browser browser = new Browser(shell, SWT.None);
>		browser.setText("Hello 1");
>//		Boolean retVal1 = (Boolean) browser.evaluate("return true");  // Eval doesn't cause it to hang, only function.
>		new CustomFunction (browser, "theJavaFunction");
>		
>		final Browser browser2 = new Browser(shell, SWT.None);
>		browser2.setText("Hello 2");
>//		Boolean retVal2 = (Boolean) browser2.evaluate("return true"); // Eval doesn't cause it to hang, only function.
>		new CustomFunction2 (browser2, "theJavaFunction2");
>
>		shell.open();
>		while (!shell.isDisposed()) {
>			if (!display.readAndDispatch())
>				display.sleep();
>		}
>		display.dispose();
>	}
>
>	static class CustomFunction extends BrowserFunction { // copied from snippet 307
>		CustomFunction (Browser browser, String name) {
>			super (browser, name);
>		}
>		@Override
>		public Object function (Object[] arguments) {
>			System.out.println ("theJavaFunction() called from javascript with args:");
>			for (int i = 0; i < arguments.length; i++) {
>				Object arg = arguments[i];
>				if (arg == null) {
>					System.out.println ("\t-->null");
>				} else {
>					System.out.println ("\t-->" + arg.getClass ().getName () + ": " + arg.toString ());
>				}
>			}
>			return arguments;
>		}
>	}
>
>	static class CustomFunction2 extends BrowserFunction { // copied from snippet 307
>		CustomFunction2 (Browser browser, String name) {
>			super (browser, name);
>		}
>		@Override
>		public Object function (Object[] arguments) {
>			System.out.println ("theJavaFunction() called from javascript with args:");
>			for (int i = 0; i < arguments.length; i++) {
>				Object arg = arguments[i];
>				if (arg == null) {
>					System.out.println ("\t-->null");
>				} else {
>					System.out.println ("\t-->" + arg.getClass ().getName () + ": " + arg.toString ());
>				}
>			}
>			return arguments;
>		}
>	}
>}

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