Fix NPE #1
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Fix NPE #1
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If method [LockGraph.shortestPath](https://github.com/Devexperts/dlcheck/blob/master/core/src/main/java/com/devexperts/dlcheck/LockGraph.java#L449) returns null, it's lead to NPE in method [LockGraph.publishPotentialDeadlockIfNeeded](https://github.com/Devexperts/dlcheck/blob/master/core/src/main/java/com/devexperts/dlcheck/LockGraph.java#L387).
Contributor
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Have this NPE occurred? The LockGraph.shortestPath method is called only if a cycle is detected, so it cannot return null. Maybe changing "return null" to "throw new IllegalStateException(...)" is a better solution. |
Author
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Yes. Finally I reproduce this error again: https://gist.github.com/vektory79/34ec4225ada199d67bd40b034300b8fa dlcheck.log looks lake: https://gist.github.com/vektory79/d70a87b25da7b3d27ca79fc2fc44d3b9 |
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If method LockGraph.shortestPath returns null, it's lead to NPE in method LockGraph.publishPotentialDeadlockIfNeeded.