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GraphBuilder#removeVertex(name, true) fails for new GraphBuilder #6565

DrChainsaw opened this issue Oct 11, 2018 · 1 comment


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commented Oct 11, 2018

The following testscase fails on 1.0.0-beta2:

public void testAddRemoveVertex() {
    new NeuralNetConfiguration.Builder().graphBuilder()
            .addVertex("toRemove", new ScaleVertex(0), "don't care")
            .addVertex("test", new ScaleVertex(0), "toRemove")
            .removeVertex("toRemove", true);

Reason is that Arrays.asList(vertexInputs) or (Collections.singletonList in case a merge vertex is created) is used to create the list of vertex inputs and those lists are immutable. Remove vertex with removeConnections will remove the given vertex name from all vertexes which has it as input.

The reason why this works from e.g. TransferLearning API is that a new ArrayList is used to copy the list of inputs in ComputationGraphConfiguration#clone

@AlexDBlack AlexDBlack self-assigned this Oct 12, 2018

AlexDBlack added a commit that referenced this issue Oct 15, 2018
Misc DL4J/Nd4J fixes (#6581)
* #6565 Fix GraphBuilder.removeVertex for non-modifiable lists

* #6562 fix Cnn3DLossLayer javadoc

* #6512 OldSoftMax validation for invalid rank inputs

* #6493 Warn users about delayed exceptions with CUDA grid executioner

* #6493 Warn users about delayed exceptions with CUDA grid executioner

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commented Nov 14, 2018

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.

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