Eclipse Oxygen Upgrade - "Java Virtual Machine Launcher - A Java Exception has occured)" -


i upgraded neon oxygen , many of projects ant builds error

"java virtual machine launcher - java exception has occurred"

first, situation not same 18453100. reset ant classpath defaults no effect. , deleting metadata caused ant builds in projects fail.

i have found copying ant build.xml in project works similar project builds did not work caused ant build jvm error.

what did discover in run configuration - classpath - additional tasks & support, ant tasks in projects work have 20 entries, whereas when same file copied new project there 5 entries. , going neon, run configurations have same 5 entries. , btw ant home classpath entries same (default) in projects.

classpath in neon , non-working oxygen projects enter image description here

classpath in oxygen working projects enter image description here

so i'm thinking upgrade oxygen did not add 15 references classpath projects. cannot find in project properties correct that. doing 1 one on dozen projects not had in mind.

would know how reset those? or other way?

ant launch configurations unrelated project settings (only text file encoding problem when copying files required ant):

  • in window > preferences: ant > runtime: tab classpath press restore defaults button.
  • in non-working external tools configurations use same jre settings in working ant launch configurations (your error message says java virtual machine launcher not missing classes)

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