Merge

8010722: assert: failed: heap size is too big for compressed oops Summary: Use conservative assumptions of required alignment for the various garbage collector components into account when determining the maximum heap size that supports compressed oops. Using this conservative value avoids several circular dependencies in the calculation. Reviewed-by: stefank, dholmes

Merge

8009561: NPG: Metaspace fragmentation when retiring a Metachunk Summary: Use best-fit block-splitting freelist allocation from the block freelist. Reviewed-by: jmasa, stefank

Merge

8021823: G1: Concurrent marking crashes with -XX:ObjectAlignmentInBytes>=32 in 64bit VMs Summary: Correctly calculate the initialization value for the shift between object start and bitmap bit in the G1 mark bitmaps. Reviewed-by: tonyp

8016825: Large pages for the heap broken on Windows for compressed oops Summary: Correctly pass the requested base address for the heap to the OS function to reserve memory. Reviewed-by: brutisso, stefank

8024176: [macosx] gc/metaspace/ClassMetaspaceSizeInJmapHeap.java failed since jdk8b105, hs25b47 Summary: The code for reading compressed klass pointers in the sa-agent on Mac used readCompOopAddress instead of readCompKlassAddress, this is wrong but has been hidden because compressed oops and compressed klasses has used the same base address in the past. Reviewed-by: sla, jmasa Contributed-by: stefan.johansson@oracle.com

8015107: NPG: Use consistent naming for metaspace concepts Reviewed-by: coleenp, mgerdin, hseigel

Merge