.setParentNodeId("P6_1");
ProjectLink link6 = new ProjectLink("P6", "project6")
.setRelation(ProjectRelationship.CONTAINED)
.setNodeId("P6_1")
<BUG>.setParentNodeId("P5_1")
.setTreeLevel(1)</BUG>
.setSubprojects(Arrays.asList(link7_6));
ProjectLink link5 = new ProjectLink("P5", "project5")
.setRelation(ProjectRelationship.CONTAINED)
<BUG>.setNodeId("P5_1")
.setTreeLevel(0)</BUG>
.setSubprojects(Arrays.asList(link6, link7_5));

.setParentNodeId("P6_1");
ProjectLink link6 = new ProjectLink("P6", "project6")
.setRelation(ProjectRelationship.CONTAINED)
.setNodeId("P6_1")
.setParentNodeId("P5_1")
.setProjectType(ProjectType.CUSTOMER)
.setTreeLevel(1)
.setSubprojects(Arrays.asList(link7_6));
ProjectLink link5 = new ProjectLink("P5", "project5")
.setRelation(ProjectRelationship.CONTAINED)
.setNodeId("P5_1")
.setProjectType(ProjectType.CUSTOMER)
.setTreeLevel(0)
.setSubprojects(Arrays.asList(link6, link7_5));
