[TINKERPOP-1957] Static Groovy script compilation requires long literals in predicates

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 3.3.2
• Component/s: groovy
• Environment: GremlinGroovyScriptEngine with GroovyCompilerGremlinPlugin and COMPILE_STATIC
• Assignee: Unassigned
• Reporter: Konstantin Müller
• Created: 27/Apr/18 09:02
• Updated: 27/Apr/18 12:26
• Resolved: 27/Apr/18 12:26

Description

When using the GremlinGroovyScriptEngine together with GroovyCompilerGremlinPlugin and compilation option COMPILE_STATIC it is required to use long literals instead of integer literals in predicates. For example the following query fails during compilation:

g.V().where(outE().count().is(lt(50)))

This gives the following error message:

Script1.groovy: 1: [Static type checking] - Cannot call org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversal <org.apache.tinkerpop.gremlin.structure.Vertex, java.lang.Long>#is(org.apache.tinkerpop.gremlin.process.traversal.P <java.lang.Long>) with arguments [org.apache.tinkerpop.gremlin.process.traversal.P <java.lang.Integer>]
 @ line 1, column 13.
   g.V().where(outE().count().is(lt(50)))
               ^

Script1.groovy: 1: [Static type checking] - Cannot find matching method org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversal#where(java.lang.Object). Please check if the declared type is correct and if the method exists.
 @ line 1, column 1.
   g.V().where(outE().count().is(lt(50)))

Changing the query to use long literals makes the query work:

g.V().where(outE().count().is(lt(50L)))

The original query works with version 3.2.8 or if COMPILE_STATIC is NOT used.