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Posted to notifications@groovy.apache.org by "Eric Milles (Jira)" <ji...@apache.org> on 2020/05/28 20:40:00 UTC
[jira] [Updated] (GROOVY-9499) VerifyError when AIC used as
argument to special constructor call
[ https://issues.apache.org/jira/browse/GROOVY-9499?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Eric Milles updated GROOVY-9499:
--------------------------------
Fix Version/s: (was: 3.0.4)
3.0.0-rc-1
> VerifyError when AIC used as argument to special constructor call
> -----------------------------------------------------------------
>
> Key: GROOVY-9499
> URL: https://issues.apache.org/jira/browse/GROOVY-9499
> Project: Groovy
> Issue Type: Bug
> Reporter: Eric Milles
> Priority: Major
> Fix For: 3.0.0-rc-1
>
>
> Consider the following:
> {code:groovy}
> class C {
> C(ref) {
> println ref.hashCode()
> }
> }
> class D extends C {
> D() {
> super(new Object() { // AIC before special ctor call completes
> })
> }
> }
> new D()
> {code}
> Supplying an AIC to the super constructor results in a verify error for an uninitialized-this reference. In this case, the AIC should not be built to expect a reference to an instance of the enclosing class since it is being executed in a static context.
> {code}
> Caught: java.lang.VerifyError: Bad type on operand stack
> Exception Details:
> Location:
> D.<init>()V @6: invokespecial
> Reason:
> Type uninitializedThis (current frame, stack[3]) is not assignable to 'D'
> Current Frame:
> bci: @6
> flags: { flagThisUninit }
> locals: { uninitializedThis }
> stack: { uninitializedThis, uninitialized 1, uninitialized 1, uninitializedThis }
> Bytecode:
> 0x0000000: 2abb 000d 592a b700 10b7 0013 b1
> {code}
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