Bugzilla – Full Text Bug Listing
| Summary: | [1.5][compiler] StackOverflow compiling GNU Classpath generics branch | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Eclipse Project] JDT | Reporter: | Jeroen Frijters <jeroen> | ||||
| Component: | Core | Assignee: | Philipe Mulet <philippe_mulet> | ||||
| Status: | VERIFIED FIXED | QA Contact: | |||||
| Severity: | normal | ||||||
| Priority: | P3 | CC: | daniel_megert, maxime_daniel | ||||
| Version: | 3.1 | ||||||
| Target Milestone: | 3.1 RC3 | ||||||
| Hardware: | PC | ||||||
| OS: | Windows XP | ||||||
| Whiteboard: | |||||||
| Attachments: |
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A snapshot of the GNU Classpath generics branch (ready to compile) is available here: http://www.frijters.net/bug100128.zip Unzip and compile using: ecj -1.5 -nowarn @src.lst +1 for RC3 Dani - pls cast a vote. You know how an Error is bad. +1 to fix this in 3.1 RC3. Created attachment 23158 [details]
Apply patch on CaptureBinding
I suspect issue arises due to capture creating a cyclic supertype (which
erasure is then falling into), as firstBound isn't protected for cycle
detection.
Maxime - pls obtain a simpler testcase reproducing it. Thanks! The patch seems to work. Shorter test case:
public class X<E>
{
E[] m;
public X()
{
X<? extends E> x = null;
System.out.println(x.m.length);
}
}
Thanks for confirming. Also note that another issue got addressed within your source lib (see bug 100147). Thanks Maxime. Added GenericTypeTest#test759. Fixed Verified using N20050616-0010 + JDT/Core HEAD. The attached project contains 3 compile errors, but no more internal compile errors. Verified using N20050616-0010 + JDT/Core HEAD |
When compiling the generics branch of GNU Classpath (a free Java class library implementation) ecj dies with a StackOverflow: ---------- 1. ERROR in ..\..\classpath-generics\java\util\EnumMap.java (at line 0) /* EnumMap.java - Map where keys are enum constants ^ Internal compiler error java.lang.StackOverflowError at org.eclipse.jdt.internal.compiler.lookup.TypeVariableBinding.erasure(Typ eVariableBinding.java:257) at org.eclipse.jdt.internal.compiler.lookup.TypeVariableBinding.erasure(Typ eVariableBinding.java:257) at org.eclipse.jdt.internal.compiler.lookup.TypeVariableBinding.erasure(Typ eVariableBinding.java:257) <... hunderds more deleted ...>