[2.7] SDO potential memory leak fix 2.0 - backport from the master #1866
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This change solve potential memory leak if SDO component is used in JEE environment. There is refactor of SDOHelperContext.helperContexts map content (nested map). Instead of current ConcurrentHashMap is CacheIdentityMap used which supports Least Recently Used (LRU) strategy. This one should be controlled by new SDO system property eclipselink.sdo.helper.contexts.max.size. Signed-off-by: Radek Felcman <radek.felcman@oracle.com>
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This change solve potential memory leak if SDO component is used in JEE environment. There is refactor of SDOHelperContext.helperContexts map content (nested map). Instead of current ConcurrentHashMap is CacheIdentityMap used which supports Least Recently Used (LRU) strategy. This one should be controlled by new SDO system property eclipselink.sdo.helper.contexts.max.size.