When a Java app is compiled with "javac -g", information that correlates byte codes back to source lines is inserted in the class files.
When the Hotspot run-time compiler compiles some of those byte codes, that source line correlation is lost. The source-line info is needed by Sun's Collect/Analyzer tools to correlate performance information with specific lines or blocks of code. The performance information includes time spent, cache misses, TLB misses, etc. For C, C++, and Fortran, the Collect/Analyzer is incredibly useful at showing the developer what part of the code is taking the most time. For Java, Collect/Analyzer can't provide the same degree of detail. For code that is compiled at run-time, Collect/Analyzer can report only by method, not by source line.

Please preserve this line number information when code is compiled at run-time.
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