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July 29, 2011 / David Bleeker

Apache and Oracle warn of serious Java 7 compiler bugs

The newly released Java upgrade suffers hotspot-compiler problems that affect Lucene and Solr.

It looks like a few bugs have crashed Oracle’s Java 7 release party that can wreak havoc on Apache Project applications. The news likely will come as a disappointment to fans of Java, who’ve waited five long years for a major update to the language.

Released just today, Java 7 includes hotspot-compiler optimizations that miscompile certain loops, potentially affecting projects such as Apache Lucene Core, Apache Solr, and possibly others, according to a warning from the Apache Project. At best, the bugs only cause JVMs to crash; in other cases, they result in miscalculations that can lead to application bugginess. [read more]


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