I just want to share my experience which may help to many BI folks to resolve their issues when create or running webi Reports. Due to unsupport java we may can see below error.
“Unspecified error invoking method or accessing property “onChangeDocID”
Replication steps: Logged on and selected the Webi Icon, select Web Intelligence Document, select Universe, Looked at universe list to make sure I didn’t see any restricted universes. Selected universe and created a new Webi report. When I ran the report, may get above error, however, as you can see report data did return but when select close of X out of the error, report will disappears.
Cause: Unsupported java Version
Update java version later to Java 1.0.7_51
Reference Note: Same issue mentioned in the below SAP note: 1933283 – Error: “Unspecified error invoking method or accessing property “onChangeDocID” ” when refreshing a new WebI report after choosing query elements.
Issue will be no longer occurred after Java version 7 update 45 .
But in you case you are in Java Update 51. Hence i would request you to clear the Java cache and try the same flow.
To clear java cache:
Navigate to control panel –> Java –> On general tab –> Temporary file settings –> Delete files –> ok.
Restart browsers and retest.
Hope this helps.