Hi, just in case anybody else makes the same typo as we did, then FYI our root cause was the missing -Dorg.osgi.framework.bootdelegation=org.apache.xpath from the java arguments in the Introscope_WebView.lax file. we accidentally removed it while increasing the heapsize there.
this is the incorrect version that we had
lax.nl.java.option.additional=-Xms4096m -Xmx6144m -Djava.awt.headless=true -Dorg.owasp.esapi.resources=./config/esapi -Dsun.java2d.noddraw=true -XX:PermSize=128m -XX:MaxPermSize=256m
and this is the the correct version:
lax.nl.java.option.additional=-Xms4096m -Xmx6144m -Djava.awt.headless=true -Dorg.owasp.esapi.resources=./config/esapi -Dsun.java2d.noddraw=true -Dorg.osgi.framework.bootdelegation=org.apache.xpath -XX:PermSize=128m -XX:MaxPermSize=256m
after adding it back, everything works fine.
stefan