Sel-fish Finch created TINKERPOP-2201:
-----------------------------------------
Summary: Gremlin-test failed while static type checking when use
secure configuration
Key: TINKERPOP-2201
URL: https://issues.apache.org/jira/browse/TINKERPOP-2201
Project: TinkerPop
Issue Type: Bug
Components: process
Affects Versions: 3.4.1
Reporter: Sel-fish Finch
Reproduce:
1. Run Gremlin Server with `gremlin-server-secure.yaml` which use
SimpleSandboxExtension for security
2. Run Gremlin-test to verify the behavior
Among the other similar errors, take
`*g_addV_asXfirstX_repeatXaddEXnextX_toXaddVX_inVX_timesX5X_addEXnextX_toXselectXfirstXX*`
in `*features/map/AddEdge.feature*` as an example:
{code:java}
features/map/AddEdge.feature:
g_addV_asXfirstX_repeatXaddEXnextX_toXaddVX_inVX_timesX5X_addEXnextX_toXselectXfirstXX
And the traversal of
GremlinServerError: 597: startup failed:
Script5.groovy: 1: [Static type checking] - Cannot call
org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversal
<org.apache.tinkerpop.gremlin.structure.Vertex,
org.apache.tinkerpop.gremlin.structure.Edge>#to(org.apache.tinkerpop.gremlin.process.traversal.Traversal
<java.lang.Object extends java.lang.Object,
org.apache.tinkerpop.gremlin.structure.Vertex>) with arguments
[org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversal <A
extends java.lang.Object, B extends java.lang.Object>]
@ line 1, column 1.
g.addV().as("first").repeat(__.addE("next").to(__.addV()).inV()).times(5).addE("next").to(__.select("first"))
^
1 error
{code}
In my knowledge, the reason is that static type checking will verify the class
type of parameter, and the definition in `GraphTraversal` seems too strict for
`SimpleSandboxExtension`.
As I changed the method definition:
{code:bash}
- public default GraphTraversal<S, E> to(final Traversal<?, Vertex>
toVertex) {
+ public default GraphTraversal<S, E> to(final Traversal<?, ?> toVertex) {
{code}
This previous case passed test.
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