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NPE
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@@ -623,7 +623,7 @@ public class AbstractTreeBuilder implements Disposable {
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class UserRunnable implements Runnable {
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private Runnable myRunnable;
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private final Runnable myRunnable;
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public UserRunnable(Runnable runnable) {
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myRunnable = runnable;
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@@ -643,7 +643,8 @@ public class AbstractTreeBuilder implements Disposable {
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}
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public boolean isSelectionBeingAdjusted() {
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return getUi().isSelectionBeingAdjusted();
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AbstractTreeUi ui = getUi();
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return ui != null && ui.isSelectionBeingAdjusted();
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}
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private void assertDisposed() {
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