hugegraph-hubble/hubble-be/src/main/java/org/apache/hugegraph/service/schema/EdgeLabelService.java [124:136]:
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    public void checkNotExist(String name, int connId) {
        try {
            this.get(name, connId);
        } catch (ExternalException e) {
            Throwable cause = e.getCause();
            if (cause instanceof ServerException &&
                ((ServerException) cause).status() == Constant.STATUS_NOT_FOUND) {
                return;
            }
            throw e;
        }
        throw new ExternalException("schema.edgelabel.exist", name);
    }
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hugegraph-hubble/hubble-be/src/main/java/org/apache/hugegraph/service/schema/PropertyKeyService.java [103:115]:
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    public void checkNotExist(String name, int connId) {
        try {
            this.get(name, connId);
        } catch (ExternalException e) {
            Throwable cause = e.getCause();
            if (cause instanceof ServerException &&
                ((ServerException) cause).status() == Constant.STATUS_NOT_FOUND) {
                return;
            }
            throw e;
        }
        throw new ExternalException("schema.propertykey.exist", name);
    }
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hugegraph-hubble/hubble-be/src/main/java/org/apache/hugegraph/service/schema/VertexLabelService.java [122:134]:
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    public void checkNotExist(String name, int connId) {
        try {
            this.get(name, connId);
        } catch (ExternalException e) {
            Throwable cause = e.getCause();
            if (cause instanceof ServerException &&
                ((ServerException) cause).status() == Constant.STATUS_NOT_FOUND) {
                return;
            }
            throw e;
        }
        throw new ExternalException("schema.vertexlabel.exist", name);
    }
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