OOM due to ehcache

[FlareBlitzV]

Found the following exception in the logs. Kindly help me regarding identifying the root cause for the OOM. Thank you.
Ehcache Version: 3.8.1
OS: Windows 10
JDK: ZuluJDK_8_0_322

java.lang.OutOfMemoryError: Java heap space|
at java.nio.HeapByteBuffer.(HeapByteBuffer.java:57)|
at java.nio.ByteBuffer.allocate(ByteBuffer.java:335)|
at org.ehcache.shadow.org.terracotta.offheapstore.disk.storage.FileBackedStorageEngine$FileChunk.readBuffer(FileBackedStorageEngine.java:590)|
at org.ehcache.shadow.org.terracotta.offheapstore.disk.storage.FileBackedStorageEngine$FileChunk.readKeyBuffer(FileBackedStorageEngine.java:534)|
at org.ehcache.shadow.org.terracotta.offheapstore.disk.storage.FileBackedStorageEngine.readKeyBuffer(FileBackedStorageEngine.java:265)|
at org.ehcache.shadow.org.terracotta.offheapstore.storage.PortabilityBasedStorageEngine.equalsKey(PortabilityBasedStorageEngine.java:125)|
at org.ehcache.shadow.org.terracotta.offheapstore.OffHeapHashMap.keyEquals(OffHeapHashMap.java:1005)|
at org.ehcache.shadow.org.terracotta.offheapstore.OffHeapHashMap.computeIfPresentWithMetadata(OffHeapHashMap.java:2101)|
at org.ehcache.shadow.org.terracotta.offheapstore.AbstractLockedOffHeapHashMap.computeIfPresentWithMetadata(AbstractLockedOffHeapHashMap.java:542)|
at org.ehcache.shadow.org.terracotta.offheapstore.concurrent.AbstractConcurrentOffHeapMap.computeIfPresentWithMetadata(AbstractConcurrentOffHeapMap.java:781)|
at org.ehcache.impl.internal.store.disk.EhcachePersistentConcurrentOffHeapClockCache.computeIfPresent(EhcachePersistentConcurrentOffHeapClockCache.java:175)|
at org.ehcache.impl.internal.store.offheap.AbstractOffHeapStore.internalGet(AbstractOffHeapStore.java:184)|
at org.ehcache.impl.internal.store.offheap.AbstractOffHeapStore.containsKey(AbstractOffHeapStore.java:219)|
at org.ehcache.core.EhcacheBase.containsKey(EhcacheBase.java:220)|