2777276 - Too many SPML requests cause OutOfMemory in AS Java

Application Server Java (AS Java) terminates with exitcode 666 (exitcode = 666). You can see a heap dump (OOM.hprof) was being generated. After analysing the heap dump the following stacktrace can be seen related to Service Provisioning Markup Language (SPML):

[...]
HTTP Worker [@1750456767]
at javax.xml.soap.MimeHeaders.<init>()V (MimeHeaders.java:51)
at com.sun.xml.internal.messaging.saaj.soap.SOAPPartImpl.<init>(Lcom/sun/xml/internal/messaging/saaj/soap/MessageImpl;)V (SOAPPartImpl.java:92)
at com.sun.xml.internal.messaging.saaj.soap.SOAPPartImpl.<init>()V (SOAPPartImpl.java:87)
at com.sun.xml.internal.messaging.saaj.soap.ver1_1.SOAPPart1_1Impl.<init>()V (SOAPPart1_1Impl.java:51)
at com.sun.xml.internal.messaging.saaj.soap.ver1_1.SOAPFactory1_1Impl.createDocument()Lcom/sun/xml/internal/messaging/saaj/soap/SOAPDocumentImpl; (SOAPFactory1_1Impl.java:43)
at com.sun.xml.internal.messaging.saaj.soap.SOAPFactoryImpl.createElement(Ljava/lang/String;)Ljavax/xml/soap/SOAPElement; (SOAPFactoryImpl.java:60)
at com.sap.security.core.spml.SPMLConsumer.addAttributes(Ljavax/xml/soap/SOAPElement;[Lcom/sap/security/core/spml/imp/Attr;Ljavax/xml/soap/SOAPFactory;)V (SPMLConsumer.java:846)
at com.sap.security.core.spml.SPMLConsumer.addSearchResultEntries(Ljavax/xml/soap/SOAPElement;[Lcom/sap/security/core/spml/imp/SearchResultEntry;)V (SPMLConsumer.java:801)
at com.sap.security.core.spml.SPMLConsumer.createSoapBody(Ljavax/xml/soap/SOAPBody;Lcom/sap/security/core/spml/imp/SearchResponse;)V (SPMLConsumer.java:780)
at com.sap.security.core.spml.SPMLConsumer.doPost(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V (SPMLConsumer.java:281)
[...]

• SAP NetWeaver Application Server Java (AS Java)
• User Management Engine (UME)
• SPML Integration

SPML, XML, UME, User Management Engine, SAP NetWeaver Application Server Java, NW AS Java, outofmemory, heapdump, exitcode = 666, JControlCloseProgram: good bye, JControlCloseProgram, good bye, exitcode=666 , KBA , BC-JAS-SEC-UME , User Management Engine , BC-JAS-COR , Enterprise Runtime, Core J2EE Framework , SV-PERF-JAS , SAP NetWeaver AS Java related performance issues , BC-JAS-MAT , Memory Analysis Tools , Problem