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https://issues.redhat.com/browse/DROOLS-5388?page=com.atlassian.jira.plug...
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Stefan Winkler updated DROOLS-5388:
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Steps to Reproduce:
# Using the Eclipse Installer, install Eclipse for Java and DSL developers 2020-03 or
2020-06.
# Then install the org.drools.eclipse plugin from
https://download.jboss.org/drools/release/7.36.0.Final/org.drools.updates...
# Create a new Drools Project (File > New > Project > Drools Project) and select
the option to generate the project using sample files.
# Open drools-test/src/main/resources/com/sample/rules/Sample.drl in the Rule Editor.
# To the {{then}} block add the following line of code and save the file:
{{Stream.of(m).forEach(System.out::println);}}
*Expected:* no error marker appears
*Observed:* error marker appears saying the lambdas can only be used in source level 1.8+
was:
# Using the Eclipse Installer, install Eclipse for Java and DSL developers 2020-03 or
2020-06.
# Then install the org.drools.eclipse plugin from
https://download.jboss.org/drools/release/7.36.0.Final/org.drools.updates...
# Create a new Drools Project (File > New > Project > Drools Project) and select
the option to generate the project using sample files.
# Open drools-test/src/main/resources/com/sample/rules/Sample.drl in the Rule Editor.
# To the `then` block add the following line of code and save the file:
`Stream.of(m).forEach(System.out::println);`
*Expected:* no error marker appears
*Observed:* error marker appears saying the lambdas can only be used in source level 1.8+
Eclipse Rule Editor does not recognize Java source level
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Key: DROOLS-5388
URL:
https://issues.redhat.com/browse/DROOLS-5388
Project: Drools
Issue Type: Bug
Components: eclipse plugin
Affects Versions: 7.36.0.Final
Reporter: Stefan Winkler
Assignee: Kris Verlaenen
Priority: Major
See this stackoverflow:
https://stackoverflow.com/q/62062516/2239897
In an Eclipse 2020-03 or 2020-06 installation, when the org.drools.eclipse 7.36.0.Final
plugin is installed, a .drl file containing Java 1.5+ source code shows error markers
about unsupported Java syntax.
Plugin org.drools.eclipse version 7.21.0.Final with an otherwise identical Eclipse
installation works fine. There seems to be a regression introduced somewhere between
7.21.0 and 7.36.0.
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