HTTP 500 error : 'java.io.IOException: Stream closed'

Whenever you are getting below error while accessing instances in em console you can try this :

If you are getting below error while clicking on instances :

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HTTP 500 error :
'java.io.IOException: Stream closed'

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CAUSE
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This means EM console instances got corrupted due to FlowTrace.jspx.xml file. After looking for $DOMAIN_HOME/sysman/mds/partition1/ai/sca/share/audit/mdssys/cust/user/weblogic/FlowTrace.jspx.xml file we found this file was 0 byte file after the disk filling failure.

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SOLUTION
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Restore the file $DOMAIN_HOME/sysman/mds/partition1/ai/sca/share/audit/mdssys/cust/user/weblogic/FlowTrace.jspx.xml with a backup or from a working environment.