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Universal Content Management (UCM) SPI Adapter Throws Java.Util.ConcurrentModificationException (Doc ID 861585.1)

Last updated on MAY 03, 2021

Applies to:

Oracle WebLogic Portal - Version 10.3.0 to 10.3.0 [Release AS10gR3]
Information in this document applies to any platform.

Symptoms

WLP is integrated with the Oracle Content Server through the SPI Adapter which acts as the bridge between the WLP-VCR(virtual content repositroy) and Universal Content Management (UCM). The Portal has multiple portlets on it and when all of them (~15 /16) are firing some search queries the results are not displayed on the portal site but an error message is shown:

Caused by: java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
at java.util.HashMap$EntryIterator.next(HashMap.java:834)
at java.util.HashMap$EntryIterator.next(HashMap.java:832)
at java.util.AbstractMap.toString(AbstractMap.java:485)
at java.lang.String.valueOf(String.java:2827)
at java.lang.StringBuilder.append(StringBuilder.java:115)
at com.oracle.content.spi.ucm.search.SearchService.searchContent(SearchService.java:100)
at com.oracle.content.spi.ucm.search.ContentSearchExecutor.executeSearchCommand(C
ontentSearchExecutor.java:163)

Cause

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In this Document
Symptoms
Cause
Solution
References

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