API for creating and processing heap dumps fully in memory #341
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Wouldn't it be great if Heap dump data could be processed in memory, without the need to create anything on disk? Then it would be possible to analyze heap dumps in restricted environments, where access to disk is restricted. This PR is my attempt to provide such functionality.
Looks like the
HprofMappedByteBufferneeds the mmapped file only when constructing itself. Then it can operate over regularByteBuffer. Looks like the system is ready to work without the cache directory whenCacheDirectory.cacheDirectoryisnull.Adding one new API factory method that takes
ByteBufferinstead of theFile. SubclassingHeapTestand running the same tests in memory only mode.