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https://issues.apache.org/jira/browse/VELTOOLS-87?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nathan Bubna resolved VELTOOLS-87.
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Resolution: Fixed
Fix Version/s: 2.0
1.x
1.4
Thanks! This is now fixed in both the 1.x and 2.x branches.
> Infinite recursion of the RenderTool.recurse(Context, String) method
> --------------------------------------------------------------------
>
> Key: VELTOOLS-87
> URL: https://issues.apache.org/jira/browse/VELTOOLS-87
> Project: Velocity Tools
> Issue Type: Bug
> Components: GenericTools
> Affects Versions: 1.2, 1.3, 1.4, 1.x, 2.0
> Reporter: Andrea Bernardo Ciddio
> Priority: Critical
> Fix For: 1.4, 1.x, 2.0
>
>
> The recurse method never returns when the vtl template contains a loop
> (should have been fixed in rev 321227):
> RenderTool tool = new RenderTool();
> VelocityContext ctx = new VelocityContext();
> String vtl = "#set($foo = 'I am [$foo]') $foo";
> System.out.println(tool.recurse(ctx, vtl));
> [StackOverflow]
> the issue is caused by a misplaced '++' operator in the internalRecurse
> method:
> protected String internalRecurse(Context ctx, String vtl, int count)
> throws Exception
> {
> String result = eval(ctx, vtl);
> if (result == null || result.equals(vtl))
> {
> return result;
> }
> else
> {
> // if we haven't reached our parse depth...
> if (count < parseDepth)
> {
> // continue recursing
> return internalRecurse(ctx, result, count++); // <====
> BUG: should be '++count'
> }
> else
> {
> // abort and return what we have so far
> //FIXME: notify the developer or user somehow??
> return result;
> }
> }
> }
> The counter is updated after the recursive call returns, which never happens
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