java - Eclipse Helios 3.6.1 debug view evaluate expression is not available -


i debugging junit test , @ point expression evaluation (ctrl+shift+i) became unavailable.

i starting debug session using java perspective -> package explorer view r. click on project root , choosing "debug -> junit". in debug view when try ctrl+shift+i on variable or expression getting following message:

enter image description here

the variables view shows values properly. ctrl+shift+i , display view react same error. log file in workspace metadata directory not show related errors (all messages there outd-dated relative current debug session).

i using eclipse helios 3.6.1. restaring ide did not situation.

any idea how fix annoying problem?

i not know 1 helped fix issue in case posting below voodoo things have done fix problem. hopefully, find 1 of them useful.

  1. ‘clean’ eclipse project: go project > clean in eclipse
  2. refresh project folder (right click on project > refresh)
  3. re-build project
  4. clean builds (if using ant or maven – clean builds)
  5. ‘switch’ workspace – switch (eg change debug, switch java)
  6. ‘switch’ workspace – switch (eg change debug, switch java)

  7. remove , re-add jre:

    7.1. right click on project > properties
    7.2. click on libraries tab
    7.3. click on jre
    7.4. click remove, ok
    7.5. repeat 1-3 again, add jre again

tips stolen here


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