NumberFormatException for ValueResolver.getDefaultResolvers on Android

[kingargyle]

When running handlebars on Android as part of WireMock. Getting a NumberFormatException when Handlebars.Util tries to get the javaVersion(). The value is returned as a string "0.9" in Android.

static int javaVersion() {
String version = System.getProperty("java.specification.version").trim();
return Integer.parseInt(version.replace(VERSION_PREFIX, ""));
}

If for some reason that the Integer can't be parsed, we get a NumberFormat exception. If this is the case can a default version be provided/. Or have Value Resolver catch the exception and return the default list of MapValueResolver, JavaBeanValueResolver instead of crashing.

[inktomi]

This has become a larger problem with older versions of Wiremock using dependencies with CVEs open against them, nessicating an upgrade which would entail the use of this version of Handlebars - which then fails due to this issue.

[vandac]

@jknack do you have any plan to fix this issue? It's not possible to use newer versions of this library on Android where the older versions are facing open CVEs.

[vandac]

The previous implementation used a property that was probably always 0. Now it uses a property that is always 0.9 if I am not mistaken. https://developer.android.com/reference/java/lang/System#getProperties()

[vandac]

I have made an attempt to work around this issue. Please review this PR #1074.

[zmunm]

it seems to be the same problem as #937. I'm also struggling with this problem, and I hope it gets resolved quickly.