Apache, Oracle warns of serious errors in Java 7



The new Java update was released with the hotspot-compiler problem, affecting 2 project of the Apache Lucene and Solr.
It seems that some error has damaged the party Java 7 release of Oracle. They can wreak havoc on the application of the Apache Project. That news may disappoint fans of Java - those who have lost five long years waiting for a major update to the language. Published Tuesday 07/28/2011, Java 7 includes the optimal hotspot-compiler, compiler error loop a certain number, has the potential to affect projects like Apache Lucene Core, Apache Solr and possibly other projects, the Apache Project's warning. Lightest, the only error that the Java virtual machine (JVM) was spoiled. In other cases, they do the calculations incorrectly, may lead to application errors.


Oracle also knows about this error (we found five days before Java 7 is released). The company said it will fix the problem in Update 2 of Java 7. Remarkably, Java 6 users can also get the error on the damage if they use an option in the JVM without enabled by default, include -XX: + OptimizeStringConcat and -XX: + AggressiveOpts . Apache Project recommends not to use Apache Lucene / Solr procession when released Java Update 2 of 7, if used, they must use the option JVM -XX:-UseLoopPredicate . Users who have upgraded to Java 7 should read JRE_VERSION_MIGRATION.txt file comes with the installation package (distribution package).


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