Failed to update qualified index

!ENTRY org.eclipse.jdt.core 4 0 2022-11-08 09:16:17.551
!MESSAGE Failed to update qualified index.
!STACK 0
java.io.IOException: Failed to read index data from file:/C:/Users/admin/AppData/Roaming/Code/User/workspaceStorage/c6f99d609a500868211607affa7d771b/redhat.java/jdt_ws/.metadata/.plugins/org.eclipse.jdt.core/1865797976.index at offset 1174 and size 808923700
    at org.eclipse.jdt.internal.core.index.DiskIndex.readCategoryTable(DiskIndex.java:685)
    at org.eclipse.jdt.internal.core.index.DiskIndex.mergeCategory(DiskIndex.java:485)
    at org.eclipse.jdt.internal.core.index.DiskIndex.mergeCategories(DiskIndex.java:477)
    at org.eclipse.jdt.internal.core.index.DiskIndex.mergeWith(DiskIndex.java:579)
    at org.eclipse.jdt.internal.core.index.Index.save(Index.java:230)
    at org.eclipse.jdt.internal.core.index.MetaIndex.save(MetaIndex.java:100)
    at org.eclipse.jdt.internal.core.search.indexing.IndexManager.saveMetaIndex(IndexManager.java:1256)
    at org.eclipse.jdt.internal.core.search.indexing.IndexManager.saveIndexes(IndexManager.java:1232)
    at org.eclipse.jdt.internal.core.search.indexing.IndexManager.notifyIdle(IndexManager.java:826)
    at org.eclipse.jdt.internal.core.search.processing.JobManager.run(JobManager.java:458)
    at java.base/java.lang.Thread.run(Unknown Source)
Caused by: java.lang.OutOfMemoryError: Java heap space
    at org.eclipse.jdt.internal.compiler.util.HashtableOfObject.<init>(HashtableOfObject.java:56)
    at org.eclipse.jdt.internal.core.index.DiskIndex.readCategoryTable(DiskIndex.java:681)
    ... 10 more

Start with the reported failure in org.eclipse.jdt.internal.core.index.DiskIndex.readCategoryTable at DiskIndex.java:681 and trace how IndexManager.saveIndexes reaches it. Reproduce the Java heap exhaustion if possible, then establish a concrete fix or mitigation that prevents the qualified index update from failing.