src/main/java/org/jetbrains/plugins/spotbugs/actions/TreeNextOccurence.java [50:64]:
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		e.getPresentation().setEnabled(enabled);
		e.getPresentation().setVisible(true);
	}

	@Override
	void actionPerformedImpl(
			@NotNull final AnActionEvent e,
			@NotNull final Project project,
			@NotNull final ToolWindow toolWindow,
			@NotNull final FindBugsState state
	) {

		final Content content = toolWindow.getContentManager().getContent(0);
		if (content != null) {
			final ToolWindowPanel panel = (ToolWindowPanel) content.getComponent();
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src/main/java/org/jetbrains/plugins/spotbugs/actions/TreePreviousOccurence.java [50:64]:
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		e.getPresentation().setEnabled(enabled);
		e.getPresentation().setVisible(true);
	}

	@Override
	void actionPerformedImpl(
			@NotNull final AnActionEvent e,
			@NotNull final Project project,
			@NotNull final ToolWindow toolWindow,
			@NotNull final FindBugsState state
	) {

		final Content content = toolWindow.getContentManager().getContent(0);
		if (content != null) {
			final ToolWindowPanel panel = (ToolWindowPanel) content.getComponent();
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